Article
Astronomy & Astrophysics
C. Koenig, J. S. Urquhart, F. Wyrowski, D. Colombo, K. M. Menten
Summary: By using the APEX telescope and various emission maps, the study provides detailed insights into the structure and properties of a region in the Milky Way. The research reveals a complex three-dimensional structure of the outer Galaxy, with correlations between CO clouds and HI emission distribution, shedding light on the influences of environmental parameters on star formation.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Dan Beilis, Sara Beck, John Lacy
Summary: The study suggests that each UCHII region in W33 Main may hold multiple exciting stars, improving the view of the stellar population and determining the dynamical development of the proto-cluster.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
T. Csengeri, F. Wyrowski, K. M. Menten, H. Wiesemeyer, R. Guesten, J. Stutzki, S. Heyminck, Y. Okada
Summary: Studying the abundance differences of OD and OH in high-mass star forming regions provides key information about the formation of water. The results show a slow decrease of OD abundance over time and a high deuterium fractionation in the cold envelopes.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
L. A. Suad, J. A. Molina Lera, S. Cichowolski
Summary: This study analyzes the characteristics of the H I supershell GS 121-05-037 and its role in triggering star formation. By analyzing the H I 21-cm line and far-infrared emission distributions, it is found that GS 121-05-037 has an expanding structure and an open morphology, and is associated with 32 H II regions. The study concludes that the ionizing stars may have been created due to the expansion of the H I supershell.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Hong-Li Liu, Tie Liu, Neal J. Evans, Ke Wang, Guido Garay, Sheng-Li Qin, Shanghuo Li, Amelia Stutz, Paul F. Goldsmith, Sheng-Yuan Liu, Anandmayee Tej, Qizhou Zhang, Mika Juvela, Di Li, Jun-Zhi Wang, Leonardo Bronfman, Zhiyuan Ren, Yue-Fang Wu, Kee-Tae Kim, Chang Won Lee, Ken'ichi Tatematsu, Maria R. Cunningham, Xun-Chuan Liu, Jing-Wen Wu, Tomoya Hirota, Jeong-Eun Lee, Pak-Shing Li, Sung-Ju Kang, Diego Mardones, Isabelle Ristorcelli, Yong Zhang, Qiu-Yi Luo, L. Viktor Toth, Hee-weon Yi, Hyeong-Sik Yun, Ya-Ping Peng, Juan Li, Feng-Yao Zhu, Zhi-Qiang Shen, Tapas Baug, L. K. Dewangan, Eswaraiah Chakali, Rong Liu, Feng-Wei Xu, Yu Wang, Chao Zhang, Jinzeng Li, Jianwen Zhou, Mengyao Tang, Qiaowei Xue, Namitha Issac, Archana Soam, Rodrigo H. Alvarez-Gutierrez
Summary: This study identified 453 high-mass star-forming cores and compiled three catalogues, including cores enshrouding H/UC HII regions and hot molecular cores not associated with them, laying an important foundation for future research on early stages of high-mass star formation. The findings suggest that the duration of chemically rich high-mass protostellar cores is comparable to the lifetime of H/UC-HII regions, and non-thermal dynamical mechanisms dominate on the smaller scales of the H/UC-HII cores.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Chenoa D. Tremblay, Tyler L. Bourke, James A. Green, John M. Dickey, O. Ivy Wong, Tim J. Galvin
Summary: This study focuses on Hii regions towards the Vela Supernova Remnant, using low-frequency, wide-field continuum observations to identify and study Hii regions in our Galaxy. The properties of these regions, including their interactions with clouds, ages, dominant emission lines, distances, ionizing photon flux, and infrared luminosity limits, are discussed. The high-mass star forming region RCW 38 is used as a pilot study to demonstrate the effectiveness of the observational approach.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Petr Zemlyanukha, Igor I. Zinchenko, Evgeny Dombek, Lev E. Pirogov, Anastasiia Topchieva, Gilles Joncas, Lokesh K. Dewangan, Devendra K. Ojha, Swarna K. Ghosh
Summary: The environment of the nearby H ii region S187 has been analyzed in this study. The first evidence of a clumpy H i environment in its photodissociation region has been reported. The estimated properties of the surrounding shell include an atomic mass fraction of 260 M-circle dot, a shell size of 4 pc, and similar to 100 fragments. The S187 shell exhibits a complex kinematical structure with expanding quasi-spherical layers, molecular envelope, and atomic sub-bubbles.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Jian-Wen Zhou, Tie Liu, Neal J. Evans, Guido Garay, Paul F. Goldsmith, Gilberto C. Gomez, Enrique Vazquez-Semadeni, Hong-Li Liu, Amelia M. Stutz, Ke Wang, Mika Juvela, Jinhua He, Di Li, Leonardo Bronfman, Xunchuan Liu, Feng-Wei Xu, Anandmayee Tej, L. K. Dewangan, Shanghuo Li, Siju Zhang, Chao Zhang, Zhiyuan Ren, Ken'ichi Tatematsu, Pak Shing Li, Chang Won Lee, Tapas Baug, Sheng-Li Qin, Yuefang Wu, Yaping Peng, Yong Zhang, Rong Liu, Qiu-Yi Luo, Jixing Ge, Anindya Saha, Eswaraiah Chakali, Qizhou Zhang, Kee-Tae Kim, Isabelle Ristorcelli, Zhi-Qiang Shen, Jin-Zeng Li
Summary: It is found that hub-filament systems are common in proto-clusters and decrease with increasing dust temperature and luminosity-to-mass ratios, indicating the influence of stellar feedback. The study also reveals different velocity gradients for filaments of different lengths, suggesting the presence of inertial inflows and dominance of gravity at small scales. Self-similar hub-filament systems and filamentary accretion may play a key role in high-mass star formation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
C. Espinosa-Ponce, S. F. Sanchez, C. Morisset, J. K. Barrera-Ballesteros, L. Galbany, R. Garcia-Benito, E. A. D. Lacerda, D. Mast
Summary: This article presents the exploration of the physical properties of H ii regions and their aggregations in the CALIFA survey, and explores their connections with galactic stellar evolution.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
F. Comeron, A. A. Djupvik, N. Schneider
Summary: In this study, we aimed to improve the understanding of the W40 central cluster by characterizing its members and their spectral classification. Using the Gaia eDR3 catalog and visible spectroscopy, we identified new members both inside and outside the cluster. We confirmed the presence of an extended population of stars at the same distance as the W40 region, and discovered a B star interacting with the shell surrounding the HII region. The study suggests that the W40 region has a star formation history extending millions of years.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
A. P. Whitworth, F. D. Priestley, S. T. Geen
Summary: A simple analytical model is developed to describe the formation of an O star in a shockcompressed layer that carves out a circular hole in the layer, creating a bipolar H II region. The model is characterized by three parameters and provides power-law expressions for the radius of the hole. It may serve as a useful zeroth-order representation of observed HIIRs.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
L. Bonne, S. Kabanovic, N. Schneider, A. Zavagno, E. Keilmann, R. Simon, C. Buchbender, R. Guesten, A. M. Jacob, K. Jacobs, U. Kavak, F. L. Polles, M. Tiwari, F. Wyrowski, A. G. G. M. Tielens
Summary: This study investigates the impact of stellar feedback on the neutral gas in the RCW 79 H II region using ionized carbon line data. The researchers find that high-velocity gas, predominantly consisting of neutral gas, forms a fragmented shell and streams out of the nascent cloud through holes. This discovery provides important evidence for understanding the evolution of the RCW 79 region.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
W. D. Langer, J. L. Pineda, P. F. Goldsmith, E. T. Chambers, D. Riquelme, L. D. Anderson, M. Luisi, M. Justen, C. Buchbender
Summary: The study reveals a widely distributed highly ionized warm interstellar gas with a density intermediate between the warm ionized medium and compact H II regions, indicating a major gap in our understanding of interstellar gas. Dense ionized regions contribute greater than 50% of the observed [C II] intensity, with kinetic temperatures too low to explain the presence of N+ likely ionized by extreme ultraviolet radiation from nearby star-forming regions or as a result of EUV leakage through a clumpy and porous interstellar medium.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Rogelio Orozco-Duarte, Guillermo Garcia-Segura, Aida Wofford, Jesus A. Toala
Summary: This study addresses the problem of the observed soft X-ray emission in superbubbles that cannot be explained by models assuming a constant density medium and central supernova events. By generating models that trace the history of supernovae in the superbubble and produce off-centre supernovae, the missing soft X-ray emission can be accounted for. Testing the models against observations of DEM L50 in the Large Magellanic Cloud, it is found that the configuration where DEM L50 forms at the edge of a filament reproduces the observed soft X-ray luminosity and other properties.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
S. Khan, J. D. Pandian, D. Lal, M. R. Rugel, A. Brunthaler, K. M. Menten, F. Wyrowski, S-N X. Medina, S. A. Dzib, H. Nguyen
Summary: This study investigates the dynamics of ionized gas around the W33 Main ultracompact HII region using observations of hydrogen radio recombination lines and provides a detailed multiwavelength characterization of the massive star-forming region W33 Main.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
A. Grazian, E. Giallongo, K. Boutsia, S. Cristiani, E. Vanzella, C. Scarlata, P. Santini, L. Pentericci, E. Merlin, N. Menci, F. Fontanot, A. Fontana, F. Fiore, F. Civano, M. Castellano, M. Brusa, A. Bonchi, R. Carini, F. Cusano, M. Faccini, B. Garilli, A. Marchetti, A. Rossi, R. Speziali
ASTRONOMY & ASTROPHYSICS
(2018)
Article
Astronomy & Astrophysics
F. Annibali, E. Morandi, L. L. Watkins, M. Tosi, A. Aloisi, A. Buzzoni, F. Cusano, M. Fumana, A. Marchetti, M. Mignoli, A. Mucciarelli, D. Romano, R. P. van der Marel
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2018)
Article
Astronomy & Astrophysics
A. Melandri, A. Rossi, S. Benetti, V D'Elia, S. Piranomonte, E. Palazzi, A. J. Levan, M. Branchesi, A. J. Castro-Tirado, P. D'Avanzo, Y-D Hu, G. Raimondo, N. R. Tanvir, L. Tomasella, L. Amati, S. Campana, R. Carini, S. Covino, F. Cusano, M. Dadina, M. Della Valle, X. Fan, P. Garnavich, A. Grado, G. Greco, J. Hjorth, J. D. Lyman, N. Masetti, P. O'Brien, E. Pian, A. Perego, R. Salvaterra, L. Stella, G. Stratta, S. Yang, A. di Paola, M. D. Caballero-Garcia, A. S. Fruchter, A. Giunta, F. Longo, M. Pinamonti, V. V. Sokolov, V Testa, A. F. Valeev, E. Brocato, M. Cantiello, F. de Luise, L. A. Antonelli, L. Pulone, S. Ascenzi, G. Israel, P. Casella, A. Stamerra, G. Iannicola, M. Lisi, F. Getman, M. T. Botticella, P. Schipani, L. Nicastro, L. Masetti, D. Vergani, A. Bulgarelli, G. De Cesare, E. Torresi, A. Cimatti, M. Brusa, G. Lanzuisi, M. O. M. Moresco, R. Paladino, M. Talia, E. Maiorano, E. Cappellaro, M. Mapelli, R. Ciolfi, M. Turatto, G. Tagliaferri, G. Ghisellini, G. Ghirlanda, M. G. Bernardini, A. Possenti, M. Burgay, S. Marinoni, G. Giuffrida, P. Marrese, M. Razzano, B. Patricelli, G. Cella, M. Spera, S. Savaglio, L. Izzo, M. Capaccioli, M. Bulla
ASTRONOMY & ASTROPHYSICS
(2019)
Article
Astronomy & Astrophysics
J. Korth, Sz. Csizmadia, D. Gandolfi, M. Fridlund, M. Paetzold, T. Hirano, J. Livingston, C. M. Persson, H. J. Deeg, A. B. Justesen, O. Barragan, S. Grziwa, M. Endl, R. Tronsgaard, F. Dai, W. D. Cochran, S. Albrecht, R. Alonso, J. Cabrera, P. W. Cauley, F. Cusano, Ph. Eigmueller, A. Erikson, M. Esposito, E. W. Guenther, A. P. Hatzes, D. Hidalgo, M. Kuzuhara, P. Montanes, N. R. Napolitano, N. Narita, P. Niraula, D. Nespral, G. Nowak, E. Palle, C. E. Petrillo, S. Redfield, J. Prieto-Arranz, H. Rauer, A. M. S. Smith, C. Tortora, V. Van Eylen, J. N. Winn
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2019)
Article
Astronomy & Astrophysics
F. Annibali, V. La Torre, M. Tosi, C. Nipoti, F. Cusano, A. Aloisi, M. Bellazzini, L. Ciotti, A. Marchetti, M. Mignoli, D. Romano, E. Sacchi
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2019)
Article
Astronomy & Astrophysics
Giovanna Giardino, Stephan Birkmann, Massimo Robberto, Pierre Ferruiti, Bernard J. Rauscher, Marco Sirianni, Catarina Alves de Oliveira, Torsten Boeker, Nora Luetzgendorf, Maurice te Plate, Elena Puga, Tim Rawle
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
(2019)
Article
Astronomy & Astrophysics
G. Catanzaro, V. Ripepi, G. Clementini, F. Cusano, G. De Somma, S. Leccia, M. Marconi, R. Molinaro, M. I. Moretti, I. Musella, V. Testa
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
V Ripepi, G. Catanzaro, R. Molinaro, M. Marconi, G. Clementini, F. Cusano, G. De Somma, S. Leccia, I Musella, V Testa
ASTRONOMY & ASTROPHYSICS
(2020)
Article
Astronomy & Astrophysics
P. Severgnini, V Braito, C. Cicone, P. Saracco, C. Vignali, R. Serafinelli, R. Della Ceca, M. Dotti, F. Cusano, D. Paris, G. Pruto, A. Zaino, L. Ballo, M. Landoni
Summary: The study identifies a promising sub-kiloparsec scale dual AGN and highlights the importance of appropriate host galaxy subtraction for accurate estimation of the incidence of dual AGNs at small projected separations.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Alessia Garofalo, Maria Tantalo, Felice Cusano, Gisella Clementini, Francesco Calura, Tatiana Muraveva, Diego Paris, Roberto Speziali
Summary: The authors studied variable stars in the Milky Way ultra-faint dwarf satellites Pisces II and Pegasus III using time-series photometry data collected with the Large Binocular Telescope. They identified RRab stars, SX Phoenicis stars, and stars with uncertain classifications in both galaxies. The study suggests that these galaxies may contain a dominant old stellar population with metallicity variations, as supported by color-magnitude diagrams and spectroscopic analysis.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
E. Racero, F. Giordano, B. Carry, J. Berthier, T. Mueller, M. Mahlke, I Valtchanov, D. Baines, S. Kruk, B. Merin, S. Besse, M. Kueppers, E. Puga, J. Gonzalez Nunez, P. Rodriguez, I de la Calle, B. Lopez-Marti, H. Norman, M. Wangblad, M. Lopez-Caniego, N. Alvarez Crespo
Summary: This study aims to provide a search service for the scientific community to detect Solar System objects (SSOs) in the European Space Agency (ESA) astronomical archives. By using a geometric cross-match of the orbital path and imaging data, a large number of targeted and serendipitous SSOs observations have been collected, facilitating scientific analysis and research.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Aviad Panahi, Shay Zucker, Gisella Clementini, Marc Audard, Avraham Binnenfeld, Felice Cusano, Dafydd Wyn Evans, Roy Gomel, Berry Holl, Ilya Ilyin, Gregory Jevardat de Fombelle, Tsevi Mazeh, Nami Mowlavi, Krzysztof Nienartowicz, Lorenzo Rimoldini, Sahar Shahaf, Laurent Eyer
Summary: This study utilizes Gaia's photometric data to discover two exoplanets, Gaia-1b and Gaia-2b, demonstrating the effectiveness of using machine-learning classification methods with a version of the box-fitting least-squares method to detect exoplanetary transits. This approach will contribute to the discovery of more exoplanets.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Massimiliano Gatto, V Ripepi, M. Bellazzini, M. Dall'ora, M. Tosi, C. Tortora, M. Cignoni, M-R L. Cioni, F. Cusano, G. Longo, M. Marconi, I Musella, P. Schipani, M. Spavone
Summary: This study presents the follow-up photometry of YMCA-1, a stellar system located near the Large Magellanic Cloud, and reveals its unique structural parameters, indicating that it lies in a transition region between ultrafaint dwarf galaxies and classical old clusters on the M-V-r(h) plane.
ASTROPHYSICAL JOURNAL LETTERS
(2022)
Article
Astronomy & Astrophysics
F. Annibali, M. Bellazzini, M. Correnti, E. Sacchi, M. Tosi, M. Cignoni, A. Aloisi, D. Calzetti, L. Ciotti, F. Cusano, J. Lee, C. Nipoti
ASTROPHYSICAL JOURNAL
(2019)
Proceedings Paper
Engineering, Aerospace
Catarina Alves de Oliveira, Stephan M. Birkmann, Torsten Boker, Pierre Ferruit, Giovanna Giardino, Nora Lutzgendorf, Elena Puga, Tim Rawle, Marco Sirianni, Maurice te Plate
OBSERVATORY OPERATIONS: STRATEGIES, PROCESSES, AND SYSTEMS VII
(2018)