Article
Astronomy & Astrophysics
I Wlodarczyk
Summary: This study provides an orbital analysis of Mars-crossing asteroids, revealing that the majority of MCs will be ejected from the Solar System after 100 million years, and showing the influence and migration patterns of MCs on near-Earth objects.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
P. Tanga, T. Pauwels, F. Mignard, K. Muinonen, A. Cellino, P. David, D. Hestroffer, F. Spoto, J. Berthier, J. Guiraud, W. Roux, B. Carry, M. Delbo, A. Dell'Oro, C. Fouron, L. Galluccio, A. Jonckheere, S. A. Klioner, Y. Lefustec, L. Liberato, C. Ordenovic, I. Oreshina-Slezak, A. Penttila, F. Pailler, Ch. Panem, J. -M. Petit, J. Portell, E. Poujoulet, W. Thuillot, E. Van Hemelryck, A. Burlacu, Y. Lasne, S. Managau
Summary: The third data release of Gaia mission provides a large sample of observations for Solar System objects. It includes astrometry and photometry data, as well as reflectance spectra of asteroids. This release represents the first full-scale realization of the Solar System survey by Gaia, demonstrating improved accuracy and completeness compared to previous releases.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
B. Holl, M. Perryman, L. Lindegren, D. Segransan, M. Raimbault
Summary: After more than two decades of radial velocity surveys, the current sample of known brown dwarfs around FGK stars is limited. The ongoing Gaia mission is expected to discover thousands of brown dwarfs, significantly increasing our understanding of their occurrence rate, properties, and orbital architectures in relation to host stellar parameters.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Engineering, Aerospace
Alfredo Escalante Lopez, Pablo Ghiglino, Manuel Sanjurjo-Rivo
Summary: This article presents Churinet, a hybrid neural network-based method for on-board spacecraft relative position and attitude estimation in the vicinity of minor bodies. Churinet solves the limitations in robustness and precision of traditional heuristic methods and effectively learns the nonlinear transformation from 2D grayscale images to 6D pose vectors. It utilizes a set of sequential CNNs to achieve accurate pose estimation.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2023)
Article
Astronomy & Astrophysics
J. F. Ferreira, P. Tanga, F. Spoto, P. Machado, D. Herald
Summary: The use of Gaia data significantly improves the accuracy of occultation measurements, especially for main belt asteroids. The quality of occultation data is greatly enhanced when compared to other catalogs, and it can reach the performance of Gaia data. However, when combined with other ground-based observations, there are still challenges due to higher uncertainties and systematic errors.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
C. Opitom, B. Murphy, C. Snodgrass, S. Bagnulo, S. F. Green, M. M. Knight, J. de Leon, J. Y. Li, D. Gardener
Summary: We characterized the morphology, spectral properties, and evolution of the ejecta produced by the NASA DART mission impact on the asteroid Dimorphos using observations from the MUSE instrument. We studied the morphology of the ejecta at different spatial scales and searched for gas emission and reflectance variation using spectral information. Our results showed that there was no detectable emission from certain gases, and we observed various morphological features and color variations in the ejecta and tail.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
F. Tinaut-Ruano, J. de Leon, E. Tatsumi, B. Rousseau, J. L. Rizos, S. Marchi
Summary: Through studying the connection between Ceres and 14 observed asteroids, it was found that only two of the asteroids have spectral compatibility with Ceres' surface. Further analysis indicates that these two asteroids are spectrally young and less likely to belong to the Ceres family.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
S. J. Curran
Summary: 'Oumuamua is the first interstellar visitor detected in the Solar System, showing non-gravitational acceleration in its trajectory possibly caused by radiation pressure. While some speculate that it could be a probe sent by an alien civilization, based on its observed parameters, it would take billions of years for 'Oumuamua to travel from its most likely origin system to our Solar System, making this possibility very unlikely.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
A. -C. Perlbarg, J. Desmars, V. Robert, D. Hestroffer
Summary: This paper introduces the objectives and methods of the New Astrometric Reduction of Old Observations (NAROO) program, emphasizing the significance of old photographic plate observations for potentially hazardous asteroids. By digitizing and measuring the photographic plates, accurate orbital solutions can be determined and small accelerations can be detected, improving our knowledge of the orbits and dynamics of Solar System objects.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
L. Siltala, M. Granvik
Summary: This study investigates the practical impact of Gaia astrometry on asteroid mass and orbit estimation. By estimating the masses of four large asteroids using a combination of Gaia astrometry and Earth-based astrometry, the study finds that the use of Gaia data significantly reduces uncertainties and improves accuracy.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Noam Segev, Eran O. Ofek, David Polishook
Summary: This study discusses the possibility of detecting binary asteroid systems using astrometric wobble, presenting a forward model to project the position of the centre of light around the centre of mass. The authors applied this model to Gaia DR2 data and found no significant evidence of binary asteroids, but discovered some interesting phenomena in the known binary asteroid population.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Jose Sergio Silva-Cabrera, Joel Humberto Castro-Chacon, Mauricio Reyes-Ruiz, Matthew J. Lehner, Carlos Alberto Guerrero, Chung-Kai Huang, Fernando Ivan Alvarez-Santana, Yin-Chang Chang, Hung-Hsu Ling, Issac Porras-Navarro, Joannes Bosco Hernandez-Aguila, Rosa L. Perez-Arce, Juan Antonio Rojas-Quintero, Remy Avila, Shiang-Yu Wang, Charles Alcock, Wen-Ping Chen, Agueda Paula Granados Contreras, Kem H. Cook, John C. Geary, Benajmin Hernandez-Valencia, J. J. Kavelaars, Timothy Norton, Edilberto Sanchez, Andrew Szentgyorgyi, Wei-Ling Yen, Zhi-Wei Zhang
Summary: This study presents photometric light curves of the stellar occultation event of the star UCAC4 341-187633 by the minor planet (134340) Pluto on August 15, 2018. Observations were conducted using telescopes at different locations, showing clear structures and amplitude differences in the resulting normalized light curves.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Teymoor Saifollahi, Gijs Verdoes Kleijn, Rees Williams, Marco Micheli, Toni Santana-Ros, Ewout Helmich, Detlef Koschny, Luca Conversi
Summary: This work aims to assess the detectability rate, the achieved recovery rate and the quality of astrometry when data mining the ESO archive for OmegaCAM imager. The results show the high potential of archival data for the search and characterization of NEOs.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
O. R. Hainaut, M. Micheli, J. L. Cano, J. Martin, L. Faggioli, R. Cennamo
Summary: The method of deep non-detection of virtual impactors has shown a large potential to eliminate the threat of otherwise difficult-to-recover near-Earth objects, as demonstrated by the targeted observations of 2006 QV(89) and the successful elimination of its virtual impactor.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
L. Lindegren, S. A. Klioner, J. Hernandez, A. Bombrun, M. Ramos-Lerate, H. Steidelmuller, U. Bastian, M. Biermann, A. de Torres, E. Gerlach, R. Geyer, T. Hilger, D. Hobbs, U. Lammers, P. J. McMillan, C. A. Stephenson, J. Castaneda, M. Davidson, C. Fabricius, G. Gracia-Abril, J. Portell, N. Rowell, D. Teyssier, F. Torra, S. Bartolome, M. Clotet, N. Garralda, J. J. Gonzalez-Vidal, J. Torra, U. Abbas, M. Altmann, E. Anglada Varela, L. Balaguer-Nunez, Z. Balog, C. Barache, U. Becciani, M. Bernet, S. Bertone, L. Bianchi, S. Bouquillon, A. G. A. Brown, B. Bucciarelli, D. Busonero, A. G. Butkevich, R. Buzzi, R. Cancelliere, T. Carlucci, P. Charlot, M-R L. Cioni, M. Crosta, C. Crowley, E. F. del Peloso, E. del Pozo, R. Drimmel, P. Esquej, A. Fienga, E. Fraile, M. Gai, M. Garcia-Reinaldos, R. Guerra, N. C. Hambly, M. Hauser, K. Janssen, S. Jordan, Z. Kostrzewa-Rutkowska, M. G. Lattanzi, S. Liao, E. Licata, T. A. Lister, W. Loffler, J. M. Marchant, A. Masip, F. Mignard, A. Mints, D. Molina, A. Mora, R. Morbidelli, C. P. Murphy, C. Pagani, P. Panuzzo, X. Penalosa Esteller, E. Poggio, P. Re Fiorentin, A. Riva, A. Sagrista Selles, V. Sanchez Gimenez, M. Sarasso, E. Sciacca, H. Siddiqui, R. L. Smart, D. Souami, A. Spagna, I. A. Steele, F. Taris, E. Utrilla, W. van Reeven, A. Vecchiato
Summary: Gaia EDR3 provides full astrometric data for 1.468 billion sources, including 585 million with five-parameter solutions and 882 million with six parameters, as well as mean positions at J2016.0 for an additional 344 million sources. Five-parameter solutions are generally more accurate and available for 93% of sources brighter than the 17th magnitude, with median uncertainties of 0.02-0.03 mas for parallax and proper motion at G = 9-14, and around 0.5 mas at G = 20. Extensive characterization of the solutions' statistical properties is provided, including the estimated angular power spectrum of parallax bias from quasars.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
F. Arenou, C. Babusiaux, M. A. Barstow, S. Faigler, A. Jorissen, P. Kervella, T. Mazeh, N. Mowlavi, P. Panuzzo, J. Sahlmann, S. Shahaf, A. Sozzetti, N. Bauchet, Y. Damerdji, P. Gavras, P. Giacobbe, E. Gosset, J. -L. Halbwachs, B. Holl, M. G. Lattanzi, N. Leclerc, T. Morel, D. Pourbaix, P. Re Fiorentin, G. Sadowski, D. Segransan, C. Siopis, D. Teyssier, T. Zwitter, L. Planquart, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, M. Biermann, O. L. Creevey, C. Ducourant, D. W. Evans, L. Eyer, R. Guerra, A. Hutton, C. Jordi, S. A. Klioner, U. L. Lammers, L. Lindegren, X. Luri, F. Mignard, C. Panem, S. Randich, P. Sartoretti, C. Soubiran, P. Tanga, N. A. Walton, C. A. L. Bailer-Jones, U. Bastian, R. Drimmel, F. Jansen, D. Katz, F. van Leeuwen, J. Bakker, C. Cacciari, J. Castaneda, F. De Angeli, C. Fabricius, M. Fouesneau, Y. Fremat, L. Galluccio, A. Guerrier, U. Heiter, E. Masana, R. Messineo, C. Nicolas, K. Nienartowicz, F. Pailler, F. Riclet, W. Roux, G. M. Seabroke, R. Sordo, F. Thevenin, G. Gracia-Abril, J. Portell, M. Altmann, R. Andrae, M. Audard, I. Bellas-Velidis, K. Benson, J. Berthier, R. Blomme, P. W. Burgess, D. Busonero, G. Busso, H. Canovas, B. Carry, A. Cellino, N. Cheek, G. Clementini, M. Davidson, P. de Teodoro, M. Nunez Campos, L. Delchambre, A. Dell'Oro, P. Esquej, J. Fernandez-Hernandez, E. Fraile, D. Garabato, P. Garcia-Lario, R. Haigron, N. C. Hambly, D. L. Harrison, J. Hernandez, D. Hestroffer, S. T. Hodgkin, K. Janssen, G. Jevardat de Fombelle, S. Jordan, A. Krone-Martins, A. C. Lanzafame, W. Loeffler, O. Marchal, P. M. Marrese, A. Moitinho, K. Muinonen, P. Osborne, E. Pancino, T. Pauwels, A. Recio-Blanco, C. Reyle, M. Riello, L. Rimoldini, T. Roegiers, J. Rybizki, L. M. Sarro, M. Smith, E. Utrilla, M. van Leeuwen, U. Abbas, P. Abraham, A. Abreu Aramburu, C. Aerts, J. J. Aguado, M. Ajaj, F. Aldea-Montero, G. Altavilla, M. A. Alvarez, J. Alves, F. Anders, R. I. Anderson, E. Anglada Varela, T. Antoja, D. Baines, S. G. Baker, L. Balaguer-Nunez, E. Balbinot, Z. Balog, C. Barache, D. Barbato, M. Barros, S. Bartolome, J. -L. Bassilana, U. Becciani, M. Bellazzini, A. Berihuete, M. Bernet, S. Bertone, L. Bianchi, A. Binnenfeld, S. Blanco-Cuaresma, A. Blazere, T. Boch, A. Bombrun, D. Bossini, S. Bouquillon, A. Bragaglia, L. Bramante, E. Breedt, A. Bressan, N. Brouillet, E. Brugaletta, B. Bucciarelli, A. Burlacu, A. G. Butkevich, R. Buzzi, E. Caffau, R. Cancelliere, T. Cantat-Gaudin, R. Carballo, T. Carlucci, M. I. Carnerero, J. M. Carrasco, L. Casamiquela, M. Castellani, A. Castro-Ginard, L. Chaoul, P. Charlot, L. Chemin, V. Chiaramida, A. Chiavassa, N. Chornay, G. Comoretto, G. Contursi, W. J. Cooper, T. Cornez, S. Cowell, F. Crifo, M. Cropper, M. Crosta, C. Crowley, C. Dafonte, A. Dapergolas, P. David, P. de Laverny, F. De Luise, R. De March, J. De Ridder, R. de Souza, A. de Torres, E. F. del Peloso, E. del Pozo, M. Delbo, A. Delgado, J. -B. Delisle, C. Demouchy, T. E. Dharmawardena, S. Diakite, C. Diener, E. Distefano, C. Dolding, H. Enke, C. Fabre, M. Fabrizio, G. Fedorets, P. Fernique, F. Figueras, Y. Fournier, C. Fouron, F. Fragkoudi, M. Gai, A. Garcia-Gutierrez, M. Garcia-Reinaldos, M. Garcia-Torres, A. Garofalo, A. Gavel, E. Gerlach, R. Geyer, G. Gilmore, S. Girona, G. Giuffrida, R. Gomel, A. Gomez, J. Gonzalez-Nunez, I. Gonzalez-Santamaria, J. J. Gonzalez-Vidal, M. Granvik, P. Guillout, J. Guiraud, R. Gutierrez-Sanchez, L. P. Guy, D. Hatzidimitriou, M. Hauser, M. Haywood, A. Helmer, A. Helmi, M. H. Sarmiento, S. L. Hidalgo, T. Hilger, N. Hladczuk, D. Hobbs, G. Holland, H. E. Huckle, K. Jardine, G. Jasniewicz, A. Jean-Antoine Piccolo, O. Jimenez-Arranz, J. Juaristi Campillo, F. Julbe, L. Karbevska, S. Khanna, G. Kordopatis, A. J. Korn, A. Kospal, Z. Kostrzewa-Rutkowska, K. Kruszynska, M. Kun, P. Laizeau, S. Lambert, A. F. Lanza, Y. Lasne, J. -F. Le Campion, Y. Lebreton, T. Lebzelter, S. Leccia, I. Lecoeur-Taibi, S. Liao, E. L. Licata, H. E. P. Lindstrom, T. A. Lister, E. Livanou, A. Lobel, A. Lorca, C. Loup, P. Madrero Pardo, A. Magdaleno Romeo, S. Managau, R. G. Mann, M. Manteiga, J. M. Marchant, M. Marconi, J. Marcos, M. M. S. Marcos Santos, D. Marin Pina, S. Marinoni, F. Marocco, D. J. Marshall, L. Martin Polo, J. M. Martin-Fleitas, G. Marton, N. Mary, A. Masip, D. Massari, A. Mastrobuono-Battisti, P. J. McMillan, S. Messina, D. Michalik, N. R. Millar, A. Mints, D. Molina, R. Molinaro, L. Molnar, G. Monari, M. Monguio, P. Montegriffo, A. Montero, R. Mor, A. Mora, R. Morbidelli, D. Morris, T. Muraveva, C. P. Murphy, I. Musella, Z. Nagy, L. Noval, F. Ocana, A. Ogden, C. Ordenovic, J. O. Osinde, C. Pagani, I. Pagano, L. Palaversa, P. A. Palicio, L. Pallas-Quintela, A. Panahi, S. Payne-Wardenaar, X. Penalosa Esteller, A. Penttila, B. Pichon, A. M. Piersimoni, F. -X. Pineau, E. Plachy, G. Plum, E. Poggio, A. Prsa, L. Pulone, E. Racero, S. Ragaini, M. Rainer, C. M. Raiteri, P. Ramos, M. Ramos-Lerate, S. Regibo, P. J. Richards, C. Rios Diaz, V. Ripepi, A. Riva, H. -W. Rix, G. Rixon, N. Robichon, A. C. Robin, C. Robin, M. Roelens, H. R. O. Rogues, L. Rohrbasser, M. Romero-Gomez, N. Rowell, F. Royer, D. Ruz Mieres, K. A. Rybicki, A. Saez Nunez, A. Sagrista Selles, E. Salguero, N. Samaras, V. Sanchez Gimenez, N. Sanna, R. Santovena, M. Sarasso, M. Schultheis, E. Sciacca, M. Segol, J. C. Segovia, D. Semeux, H. I. Siddiqui, A. Siebert, L. Siltala, A. Silvelo, E. Slezak, I. Slezak, R. L. Smart, O. N. Snaith, E. Solano, F. Solitro, D. Souami, J. Souchay, A. Spagna, L. Spina, F. Spoto, I. A. Steele, H. Steidelmueller, C. A. Stephenson, M. Suveges, J. Surdej, L. Szabados, E. Szegedi-Elek, F. Taris, M. B. Taylor, R. Teixeira, L. Tolomei, N. Tonello, F. Torra, J. Torra, G. Torralba Elipe, M. Trabucchi, A. T. Tsounis, C. Turon, A. Ulla, N. Unger, M. V. Vaillant, E. van Dillen, W. van Reeven, O. Vanel, A. Vecchiato, Y. Viala, D. Vicente, S. Voutsinas, M. Weiler, T. Wevers, L. Wyrzykowski, A. Yoldas, P. Yvard, H. Zhao, J. Zorec, S. Zucker
Summary: The Gaia DR3 catalogue is a large non-single-star catalogue with about 800,000 solutions for astrometric, spectroscopic, and eclipsing binaries. It has a huge potential for various research fields.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
A. Vallenari, A. G. A. Brown, T. Prusti, J. H. J. de Bruijne, F. Arenou, C. Babusiaux, M. Biermann, O. L. Creevey, C. Ducourant, D. W. Evans, L. Eyer, R. Guerra, A. Hutton, C. Jordi, S. A. Klioner, U. L. Lammers, L. Lindegren, X. Luri, F. Mignard, C. Panem, D. Pourbaix, S. Randich, P. Sartoretti, C. Soubiran, P. Tanga, N. A. Walton, C. A. L. Bailer-Jones, U. Bastian, R. Drimmel, F. Jansen, D. Katz, M. G. Lattanzi, F. vanLeeuwen, J. Bakker, C. Cacciari, J. Castaneda, F. De Angeli, C. Fabricius, M. Fouesneau, Y. Fremat, L. Galluccio, A. Guerrier, U. Heiter, E. Masana, R. Messineo, N. Mowlavi, C. Nicolas, K. Nienartowicz, F. Pailler, P. Panuzzo, F. Riclet, W. Roux, G. M. Seabroke, R. Sordo, F. Thevenin, G. Gracia-Abril, J. Portell, D. Teyssier, M. Altmann, R. Andrae, M. Audard, I. Bellas-Velidis, K. Benson, J. Berthier, R. Blomme, P. W. Burgess, D. Busonero, G. Busso, H. Canovas, B. Carry, A. Cellino, N. Cheek, G. Clementini, Y. Damerdji, M. Davidson, P. Deteodoro, M. Nunez Campos, L. Delchambre, A. Dell'Oro, P. Esquej, J. Fernandez-Hernandez, E. Fraile, D. Garabato, P. Garcia-Lario, E. Gosset, R. Haigron, J. -L. Halbwachs, N. C. Hambly, D. L. Harrison, J. Hernandez, D. Hestroffer, S. T. Hodgkin, B. Holl, K. Janssen, G. Jevardat deFombelle, S. Jordan, A. Krone-Martins, A. C. Lanzafame, W. Loeffler, O. Marchal, P. M. Marrese, A. Moitinho, K. Muinonen, P. Osborne, E. Pancino, T. Pauwels, A. Recio-Blanco, C. Reyle, M. Riello, L. Rimoldini, T. Roegiers, J. Rybizki, L. M. Sarro, C. Siopis, M. Smith, A. Sozzetti, E. Utrilla, M. vanLeeuwen, U. Abbas, P. Abraham, A. Abreu Aramburu, C. Aerts, J. J. Aguado, M. Ajaj, F. Aldea-Montero, G. Altavilla, M. A. Alvarez, J. Alves, F. Anders, R. I. Anderson, E. Anglada Varela, T. Antoja, D. Baines, S. G. Baker, L. Balaguer-Nunez, E. Balbinot, Z. Balog, C. Barache, D. Barbato, M. Barros, M. A. Barstow, S. Bartolome, J. -L. Bassilana, N. Bauchet, U. Becciani, M. Bellazzini, A. Berihuete, M. Bernet, S. Bertone, L. Bianchi, A. Binnenfeld, S. Blanco-Cuaresma, A. Blazere, T. Boch, A. Bombrun, D. Bossini, S. Bouquillon, A. Bragaglia, L. Bramante, E. Breedt, A. Bressan, N. Brouillet, E. Brugaletta, B. Bucciarelli, A. Burlacu, A. G. Butkevich, R. Buzzi, E. Caffau, R. Cancelliere, T. Cantat-Gaudin, R. Carballo, T. Carlucci, M. I. Carnerero, J. M. Carrasco, L. Casamiquela, M. Castellani, A. Castro-Ginard, L. Chaoul, P. Charlot, L. Chemin, V. Chiaramida, A. Chiavassa, N. Chornay, G. Comoretto, G. Contursi, W. J. Cooper, T. Cornez, S. Cowell, F. Crifo, M. Cropper, M. Crosta, C. Crowley, C. Dafonte, A. Dapergolas, M. David, P. David, P. deLaverny, F. DeLuise, R. DeMarch, J. DeRidder, R. deSouza, A. deTorres, E. F. del Peloso, E. delPozo, M. Delbo, A. Delgado, J. -B. Delisle, C. Demouchy, T. E. Dharmawardena, P. Di Matteo, S. Diakite, C. Diener, E. Distefano, C. Dolding, B. Edvardsson, H. Enke, C. Fabre, M. Fabrizio, S. Faigler, G. Fedorets, P. Fernique, A. Fienga, F. Figueras, Y. Fournier, C. Fouron, F. Fragkoudi, M. Gai, A. Garcia-Gutierrez, M. Garcia-Reinaldos, M. Garcia-Torres, A. Garofalo, A. Gavel, P. Gavras, E. Gerlach, R. Geyer, P. Giacobbe, G. Gilmore, S. Girona, G. Giu Ff Rida, R. Gomel, A. Gomez, J. Gonzalez-Nunez, I. Gonzalez-Santamaria, J. J. Gonzalez-Vidal, M. Granvik, P. Guillout, J. Guiraud, R. Gutierrez-Sanchez, L. P. Guy, D. Hatzidimitriou, M. Hauser, M. Haywood, A. Helmer, A. Helmi, M. H. Sarmiento, S. L. Hidalgo, T. Hilger, N. Hladczuk, D. Hobbs, G. Holland, H. E. Huckle, K. Jardine, G. Jasniewicz, A. Jean-Antoine Piccolo, O. Jimenez-Arranz, A. Jorissen, J. Juaristi Campillo, F. Julbe, L. Karbevska, P. Kervella, S. Khanna, M. Kontizas, G. Kordopatis, A. J. Korn, A. Kospal, Z. Kostrzewa-Rutkowska, K. Kruszynska, M. Kun, P. Laizeau, S. Lambert, A. F. Lanza, Y. Lasne, J. -F. LeCampion, Y. Lebreton, T. Lebzelter, S. Leccia, N. Leclerc, I. Lecoeur-Taibi, S. Liao, E. L. Licata, H. E. P. Lindstrom, T. A. Lister, E. Livanou, A. Lobel, A. Lorca, C. Loup, P. MadreroPardo, A. MagdalenoRomeo, S. Managau, R. G. Mann, M. Manteiga, J. M. Marchant, M. Marconi, J. Marcos, M. M. S. MarcosSantos, D. MarinPina, S. Marinoni, F. Marocco, D. J. Marshall, L. Martin Polo, J. M. Martin-Fleitas, G. Marton, N. Mary, A. Masip, D. Massari, A. Mastrobuono-Battisti, T. Mazeh, P. J. McMillan, S. Messina, D. Michalik, N. R. Millar, A. Mints, D. Molina, R. Molinaro, L. Molnar, G. Monari, M. Monguio, P. Montegriffo, A. Montero, R. Mor, A. Mora, R. Morbidelli, T. Morel, D. Morris, T. Muraveva, C. P. Murphy, I. Musella, Z. Nagy, L. Noval, F. Ocana, A. Ogden, C. Ordenovic, J. O. Osinde, C. Pagani, I. Pagano, L. Palaversa, P. A. Palicio, L. Pallas-Quintela, A. Panahi, S. Payne-Wardenaar, X. Penalosa Esteller, A. Penttila, B. Pichon, A. M. Piersimoni, F. -X. Pineau, E. Plachy, G. Plum, E. Poggio, A. Prsa, L. Pulone, E. Racero, S. Ragaini, M. Rainer, C. M. Raiteri, N. Rambaux, P. Ramos, M. Ramos-Lerate, P. ReFiorentin, S. Regibo, P. J. Richards, C. Rios Diaz, V. Ripepi, A. Riva, H. -W. Rix, G. Rixon, N. Robichon, A. C. Robin, C. Robin, M. Roelens, H. R. O. Rogues, L. Rohrbasser, M. Romero-Gomez, N. Rowell, F. Royer, D. Ruz Mieres, K. A. Rybicki, G. Sadowski, A. Saez Nunez, A. Sagrista Selles, J. Sahlmann, E. Salguero, N. Samaras, V. Sanchez Gimenez, N. Sanna, R. Santovena, M. Sarasso, M. Schultheis, E. Sciacca, M. Segol, J. C. Segovia, D. Segransan, D. Semeux, S. Shahaf, H. I. Siddiqui, A. Siebert, L. Siltala, A. Silvelo, E. Slezak, I. Slezak, R. L. Smart, O. N. Snaith, E. Solano, F. Solitro, D. Souami, J. Souchay, A. Spagna, L. Spina, F. Spoto, I. A. Steele, H. Steidelmueller, C. A. Stephenson, M. Suveges, J. Surdej, L. Szabados, E. Szegedi-Elek, F. Taris, M. B. Taylor, R. Teixeira, L. Tolomei, N. Tonello, F. Torra, J. Torra, G. Torralba Elipe, M. Trabucchi, A. T. Tsounis, C. Turon, A. Ulla, N. Unger, M. V. Vaillant, E. van Dillen, W. van Reeven, O. Vanel, A. Vecchiato, Y. Viala, D. Vicente, S. Voutsinas, M. Weiler, T. Wevers, L. Wyrzykowski, A. Yoldas, P. Yvard, H. Zhao, J. Zorec, S. Zucker, T. Zwitter
Summary: The third data release of the Gaia mission includes a wide range of new data products, such as an expanded radial velocity survey and extensive astrophysical characterisation. This release provides unprecedented quantity, quality, and variety of source astrophysical data, including spectrophotometry, radial velocities, variables, and astrophysical parameters. It will greatly enhance the potential of Gaia's astrometric, photometric, and radial velocity surveys.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
O. Jimenez-Arranz, M. Romero-Gomez, X. Luri, P. J. McMillan, T. Antoja, L. Chemin, S. Roca-Fabrega, E. Masana, A. Muros
Summary: The high quality of Gaia mission data allows for detailed analysis of the internal kinematics of the LMC, revealing the non-axisymmetric structure of its disc. This study presents an improved selection strategy using a neural network classifier to distinguish LMC stars from Milky Way foreground stars. The results show that the dynamics in the inner disc is dominated by a bar structure, and the contamination of Milky Way stars affects the outer parts of the disc.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
G. Kordopatis, M. Schultheis, P. J. McMillan, P. A. Palicio, P. de Laverny, A. Recio-Blanco, O. Creevey, M. A. alvarez, R. Andrae, E. Poggio, E. Spitoni, G. Contursi, H. Zhao, I. Oreshina-Slezak, C. Ordenovic, A. Bijaoui
Summary: Gaia's third data release includes radial velocities for 33 million stars and atmospheric parameters for more than 5 million targets. By combining these with astrometric data, orbital and stellar parameters can be derived to study the stellar populations of the Milky Way and perform Galactic archaeology. The release provides information on ages, initial stellar masses, reddenings, and stellar orbits, enabling a better understanding of the chemo-dynamical properties and chemical enrichment of the Milky Way.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
L. M. Sarro, A. Berihuete, R. L. Smart, C. Reyle, D. Barrado, M. Garcia-Torres, W. J. Cooper, H. R. A. Jones, F. Marocco, O. L. Creevey, R. Sordo, C. A. L. Bailer-Jones, P. Montegriffo, R. Carballo, R. Andrae, M. Fouesneau, A. C. Lanzafame, F. Pailler, F. Thevenin, A. Lobel, L. Delchambre, A. J. Korn, A. Recio-Blanco, M. S. Schultheis, F. De Angeli, N. Brouillet, L. Casamiquela, G. Contursi, P. de Laverny, P. Garcia-Lario, G. Kordopatis, Y. Lebreton, E. Livanou, A. Lorca, P. A. Palicio, I. Slezak-Oreshina, C. Soubiran, A. Ulla, H. Zhao
Summary: This study uses the Gaia DR3 set of UCD candidates to investigate the global properties of the set. The study characterizes the UCDs in binary systems and identifies low-mass members of nearby young associations, star-forming regions, and clusters. The study also analyzes the variability properties of the UCDs. The findings provide valuable information for further studies on the faint end of the main sequence and the stellar-substellar transition.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Multidisciplinary Sciences
Z. Rustamkulov, D. K. Sing, S. Mukherjee, E. M. May, J. Kirk, E. Schlawin, M. R. Line, C. Piaulet, A. L. Carter, N. E. Batalha, J. M. Goyal, M. Lopez-Morales, J. D. Lothringer, R. J. MacDonald, S. E. Moran, K. B. Stevenson, H. R. Wakeford, N. Espinoza, J. L. Bean, N. M. Batalha, B. Benneke, Z. K. Berta-Thompson, I. J. M. Crossfield, P. Gao, L. Kreidberg, D. K. Powell, P. E. Cubillos, N. P. Gibson, J. Leconte, K. Molaverdikhani, N. K. Nikolov, V. Parmentier, P. Roy, J. Taylor, J. D. Turner, P. J. Wheatley, K. Aggarwal, E. Ahrer, M. K. Alam, L. Alderson, N. H. Allen, A. Banerjee, S. Barat, D. Barrado, J. K. Barstow, T. J. Bell, J. Blecic, J. Brande, S. Casewell, Q. Changeat, K. L. Chubb, N. Crouzet, T. Daylan, L. Decin, J. Desert, T. Mikal-Evans, A. D. Feinstein, L. Flagg, J. J. Fortney, J. Harrington, K. Heng, Y. Hong, R. Hu, N. Iro, T. Kataria, E. m. -r. Kempton, J. Krick, M. Lendl, J. Lillo-Box, A. Louca, J. Lustig-Yaeger, L. Mancini, M. Mansfield, N. J. Mayne, Y. Miguel, G. Morello, K. Ohno, E. Palle, D. J. M. Petit Dit de la Roche, B. V. Rackham, M. Radica, L. Ramos-Rosado, S. Redfield, L. K. Rogers, E. L. Shkolnik, J. Southworth, J. Teske, P. Tremblin, G. S. Tucker, O. Venot, W. C. Waalkes, L. Welbanks, X. Zhang, S. Zieba
Summary: We measured a broad-wavelength 0.5-5.5 μm atmospheric transmission spectrum of the exoplanet WASP-39b using JWST NIRSpec's PRISM mode. We detected several chemical species, including Na, H2O, CO2, and CO, with high significance. The non-detection of CH4 and the presence of a strong CO2 feature favor atmospheric models with a super-solar atmospheric metallicity. The unexpected absorption feature at 4 μm is best explained by SO2, which could be a tracer of atmospheric photochemistry. These observations demonstrate the sensitivity of JWST to diverse exoplanet compositions and chemical processes.
Article
Astronomy & Astrophysics
Q. Duchene, C. Hottier, R. Lallement, J. L. Vergely, C. Babusiaux, A. Marchal, F. Arenou
Summary: This paper presents an automated search technique based on cloud-contour morphology for assigning radial velocities to interstellar clouds in the Milky Way. The technique utilizes the Fellwalker algorithm combined with spectral window sliding to determine the velocity intervals of the clouds. The results show good agreement with previous measurements, indicating the effectiveness of this automated method.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Stefano Bagnulo, Zuri Gray, Mikael Granvik, Alberto Cellino, Ludmilla Kolokolova, Karri Muinonen, Olga Munoz, Cyrielle Opitom, Antti Penttila, Colin Snodgrass
Summary: We studied the Didymos-Dimorphos binary asteroid in spectropolarimetric mode to understand the characteristics of the ejected dust before and after the DART impact. Prior to impact, Didymos showed an increasing linear polarization with phase angle, reaching about 5% in the blue and 4.5% in the red. The polarization spectrum was anticorrelated with the reflectance spectrum, indicating it was an S-class asteroid. After impact, the level of polarization slightly decreased in both the blue and red bands, but continued to increase linearly with phase angle, similar to the measurements before impact. The lack of significant change in the polarization spectrum suggests that the wavelength dependence of polarization depends on the composition of the scattering material rather than its structure.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
Sierra L. Grant, Ewine F. van Dishoeck, Benoit Tabone, Danny Gasman, Thomas Henning, Inga Kamp, Manuel Guedel, Pierre-Olivier Lagage, Giulio Bettoni, Giulia Perotti, Valentin Christiaens, Matthias Samland, Aditya M. Arabhavi, Ioannis Argyriou, Alain Abergel, Olivier Absil, David Barrado, Anthony Boccaletti, Jeroen Bouwman, Alessio Caratti o Garatti, Vincent Geers, Adrian M. Glauser, Rodrigo Guadarrama, Hyerin Jang, Jayatee Kanwar, Fred Lahuis, Maria Morales-Calderon, Michael Mueller, Cyrine Nehme, Goeran Olofsson, Eric Pantin, Nicole Pawellek, Tom P. Ray, Donna Rodgers-Lee, Silvia Scheithauer, Juergen Schreiber, Kamber Schwarz, Milou Temmink, Bart Vandenbussche, Marissa Vlasblom, L. B. F. M. Waters, Gillian Wright, Luis Colina, Thomas R. Greve, Kay Justannont, Goeran Ostlin
Summary: We present JWST-MIRI Medium Resolution Spectrometer (MRS) spectra of the protoplanetary disk around the low-mass T Tauri star GW Lup, identifying the presence of (CO2)-C-12, (CO2)-C-13, H2O, HCN, C2H2, and OH. By using these molecules as probes, we characterize the chemical and physical conditions in the inner region of the GW Lup disk. The high spectral resolution and signal-to-noise ratio provided by JWST-MIRI MRS are essential for the identification and determination of column densities and temperatures of these species.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
J. M. Benko, E. Plachy, H. Netzel, A. Bodi, L. Molnar, A. Pal
Summary: Using TESS space telescope data, we investigated the time series of 633 RR Lyrae stars and found that 82.8% of them have additional frequencies beyond the main pulsation. The additional frequencies may belong to non-radial modes, particularly l=10 modes. Stars with shorter periods tend to have no additional frequencies, while longer period stars almost always show additional frequencies. The incidence rate and period distribution match well with recent theoretical models. Amplitude and phase of additional frequencies vary over time, and different non-radial modes have different time-scale variations. We also observed the Blazhko effect in 10.4% of the stars and detected annual-scale phase changes without significant amplitude variation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
Sebastian Ratzenboeck, Josefa E. Grossschedl, Joao Alves, Nuria Miret-Roig, Immanuel Bomze, John Forbes, Alyssa Goodman, Alvaro Hacar, Doug Lin, Stefan Meingast, Torsten Moeller, Martin Piecka, Laura Posch, Alena Rottensteiner, Cameren Swiggum, Catherine Zucker
Summary: We reconstructed the star formation history of the Sco-Cen OB association and found that it experienced four bursts of enhanced star formation activity, with the second burst being the most dominant. Sco-Cen formed from the inside out and exhibits well-defined age gradients.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Ian U. Roederer, Andrew B. Pace, Vinicius M. Placco, Nelson Caldwell, Sergey E. Koposov, Mario Mateo, Edward W. Olszewski, Matthew G. Walker
Summary: We present the stellar parameters and chemical abundances of five stars located at large radii in the Sextans dwarf spheroidal galaxy. Four stars exhibit normal abundances of C and mild enhancement of alpha elements. One star exhibits large overabundances of C, N, O, Na, Mg, Si, and K, while three stars exhibit moderate enhancements of Eu and the abundance ratios among 12 neutron-capture elements are indicative of r-process nucleosynthesis.
ASTROPHYSICAL JOURNAL
(2023)
Article
Astronomy & Astrophysics
Fiorenzo Stoppa, Eric Cator, Gijs Nelemans
Summary: In astronomy, statistical techniques can be used to improve the validation of models by accounting for measurement error uncertainties. In cases where there is a lack of agreement between observations and models, it is possible to address this issue through the application of consistency tests that assess the closeness of astrophysical models to observations in a model-independent way.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)