Article
Astronomy & Astrophysics
Alekzander Kosakowski, Mukremin Kilic, Warren Brown
Summary: The study utilized observations from the Apache Point Observatory and Gemini telescope to analyze the SDSS J082239.54+304857.19 binary system, revealing a low-mass DA white dwarf and a companion star. The research indicates that the temperature of the secondary star in the system is approximately 5200K, and a significant measurement of orbital decay due to gravitational waves is expected to be possible in 2023.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Sophie Dubber, Beth Biller, Loic Albert, Michael Liu, Jessy Jose, Zhoujian Zhang, Wen-Ping Chen, Bhavana Lalchand, Belinda Damian, Tanvi Sharma, Katelyn Allers
Summary: We have spectroscopically confirmed nine M5 or later Serpens Core candidate members using CFHT WIRCam photometry and IRTF SpeX spectroscopy. The latest of these candidates is best fit by an L0 spectral standard, suggesting a mass of about 0.01-0.035M (solar mass). If confirmed as cluster members, they would be among the lowest mass objects ever discovered in the Serpens Core. We performed analysis on the physical properties of the sample and discussed the likely membership of the candidate Serpens Core members.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
J. R. Callingham, B. J. S. Pope, A. D. Feinstein, H. K. Vedantham, T. W. Shimwell, P. Zarka, C. Tasse, L. Lamy, K. Veken, S. Toet, J. Sabater, P. N. Best, R. J. van Weeren, H. J. A. Roettgering, T. P. Ray
Summary: Recently detected low-frequency radio emission from M dwarf systems shows similarities with emission from gas giant planets in our Solar System, possibly driven by interactions between a rotating plasma disk and a stellar magnetosphere. A study on the M dwarf binary CR Draconis reveals a high detection rate of bright radio bursts with distinctive features, providing insights into the nature of the emission.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
E. N. Johnson, S. Czesla, B. Fuhrmeister, P. Schoefer, Y. Shan, C. Cardona Guillen, A. Reiners, S. V. Jeffers, S. Lalitha, R. Luque, E. Rodriguez, V. J. S. Bejar, J. A. Caballero, L. Tal-Or, M. Zechmeister, I. Ribas, P. J. Amado, A. Quirrenbach, M. Cortes-Contreras, S. Dreizler, A. Fukui, M. J. Lopez-Gonzalez, A. P. Hatzes, Th. Henning, A. Kaminski, M. Kuerster, M. Lafarga, D. Montes, J. C. Morales, F. Murgas, N. Narita, E. Palle, H. Parviainen, S. Pedraz, D. Pollacco, A. Sota
Summary: The study reveals that the M dwarf GJ 3270 exhibits intense flare activity, with the strongest flare reaching nearly superflare levels, visible in multiple photometric bands with a peak temperature of about 10,000 K. Additionally, a rotating feature similar to a post-flare arcadal loop on the Sun is observed for the first time around a star other than our Sun.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Samuel Pearson, Aleks Scholz, Paula S. Teixeira, Koraljka Muzic, Victor Almendros-Abad
Summary: Based on spectroscopic observations of 68 candidates in NGC 2264, researchers confirmed 13 brown dwarfs and 19 M-type stars, with ages predominantly younger than the known cluster population, indicating distinct formation processes. The estimated total of 200-600 brown dwarfs in NGC 2264 suggests a star-to-brown dwarf ratio between 2.5:1 and 7.5:1, with a consistent substellar mass function slope of alpha = 0.43(-0.56)(+0.41) across various young clusters, indicating a uniformity in substellar mass functions within star-forming environments.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Sophie Dubber, Beth Biller, Katelyn Allers, Jessy Jose, Loic Albert, Blake Pantoja, Clemence Fontanive, Michael Liu, Zhoujian Zhang, Wen-Ping Chen, Bhavana Lalchand, Belinda Damian, Tanvi Sharma
Summary: Using CFHT photometry and IRTF spectroscopy, low-mass candidate members of Serpens South and Serpens Core were identified using the W-band method. Young, low-mass Serpens candidate members were reported with masses less than 0.12 solar masses. Additionally, a binary system was discovered with components separated by approximately 45AU, each with spectral types and masses within a specific range. The analysis also discussed the impact of dust attenuation and reddened background stars on the reliability of the findings.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Samuel A. Beiler, Katelyn N. Allers, Michael Cushing, Jacqueline Faherty, Mark Marley, Andrew Skemer
Summary: We conducted a spectroscopic study on eight young L dwarfs in the L-band (2.98-3.96 μm) with spectral types ranging from L2 to L7. Our analysis focused on the evolution of the Q-branch of methane absorption feature and the impact of including the L-band data on atmoshperic models. We found that the Q-branch feature first appears between L3 and L6 and that the addition of the L band causes a drop in effective temperature and requires thick clouds and higher vertical mixing rates in the models.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
P. Benni, A. Y. Burdanov, V. V. Krushinsky, A. Bonfanti, G. Hebrard, J. M. Almenara, S. Dalal, O. D. S. Demangeon, M. Tsantaki, J. Pepper, K. G. Stassun, A. Vanderburg, A. Belinski, F. Kashaev, K. Barkaoui, T. Kim, W. Kang, K. Antonyuk, V. V. Dyachenko, D. A. Rastegaev, A. Beskakotov, A. A. Mitrofanova, F. J. Pozuelos, E. D. Kuznetsov, A. Popov, F. Kiefer, P. A. Wilson, G. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. M. Jenkins, E. Sokov, I Sokova, A. Marchini, R. Papini, F. Salvaggio, M. Banfi, O. Basturk, S. Torun, S. Yalcinkaya, K. Ivanov, G. Valyavin, E. Jehin, M. Gillon, E. Pakstiene, V-P Hentunen, S. Shadick, M. Bretton, A. Wunsche, J. Garlitz, Y. Jongen, D. Molina, E. Girardin, F. Grau Horta, R. Naves, Z. Benkhaldoun, M. D. Joner, M. Spencer, A. Bieryla, D. J. Stevens, E. L. N. Jensen, K. A. Collins, D. Charbonneau, E. Quintana, S. E. Mullally, C. E. Henze
Summary: The discovery of GPX-1 b, a transiting brown dwarf, marks an important milestone as the first substellar object found by the GPX survey. Detailed observations and measurements have allowed for the characterization of both the brown dwarf and its host star, providing valuable insights into their physical properties. Such discoveries contribute to our understanding of brown dwarfs and planetary systems in our galaxy.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Jenni R. French, Sarah L. Casewell, Trent J. Dupuy, John H. Debes, Elena Manjavacas, Emily C. Martin, Siyi Xu
Summary: We confirm SDSS J222551.65+001637.7AB as a closely separated, resolved white dwarf-brown dwarf binary. The binary consists of a white dwarf with a temperature of 10926 +/- 246 K and a brown dwarf companion of L4 spectral type, separated by 0.9498 +/- 0.0022 arcsec. The age of the binary is estimated to be 1.97(-0.76)(+4.41) Gyr. This binary is likely a member of the thick disc and is the third closest spatially resolved white dwarf-brown dwarf binary known.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
C. J. Marvin, A. Reiners, G. Anglada-Escude, S. V. Jeffers, S. Boro Saikia
Summary: This study measured the absolute Ca II H&K and Hα flux of 110 HARPS M dwarfs and extended the calibration of R'(HK) to the M dwarf regime using PHOENIX stellar atmosphere models. The study found that effective temperature calibration is the main source of error in activity measurements.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
Qichun Liu, Jie Lin, Xiaofeng Wang, Shenghong Gu, Jianrong Shi, Liyun Zhang, Gaobo Xi, Jun Mo, Yongzhi Cai, Liyang Chen, Zhihao Chen, Fangzhou Guo, Xiaojun Jiang, Gaici Li, Wenxiong Li, Han Lin, Weili Lin, Jialian Liu, Cheng Miao, Xiaoran Ma, Haowei Peng, Danfeng Xiang, Shengyu Yan, Jicheng Zhang, Xinhan Zhang
Summary: Tsinghua University-Ma Huateng Telescopes for Survey (TMTS) aims to detect fast-evolving transients in the Universe and has discovered thousands of short-period variables and eclipsing binaries since 2020. In this paper, the observed properties of 125 flare stars identified by TMTS within the first two years are presented, with a focus on their eruption physics. The results show that the characteristics of flares are related to the color and temperature of the stars, as well as the strength of H alpha emission in their spectra.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
B. Riaz, M. N. Machida
Summary: ALMA observations of the (CO)-C-12 (2-1), (CO)-C-13 (2-1), and (CO)-O-18 (2-1) molecular lines in the very young proto-brown dwarf system ISO-OPH 200 reveal complex internal structures. Physical+chemical modelling suggests that ISO-OPH 200 is likely an early Class 0 stage system formed via a star-like mechanism.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
P. A. Miles-Paez
Summary: This study investigates the photometric properties of the M7.5 equal-mass binary VHS J1256-1257AB and finds that their light curves exhibit periodic modulation and stochastic variability, with rotation periods of 2.0782 hours and 2.1342 hours. The fluxes of the equally bright VHS J1256-1257A and B alternate between phase and anti-phase states, explaining the observed photometric variability in their combined light.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Nolan Grieves, Francois Bouchy, Monika Lendl, Theron Carmichael, Ismael Mireles, Avi Shporer, Kim K. McLeod, Karen A. Collins, Rafael Brahm, Keivan G. Stassun, Sam Gill, Luke G. Bouma, Tristan Guillot, Marion Cointepas, Leonardo A. Dos Santos, Sarah L. Casewell, Jon M. Jenkins, Thomas Henning, Louise D. Nielsen, Angelica Psaridi, Stephane Udry, Damien Segransan, Jason D. Eastman, George Zhou, Lyu Abe, Abelkrim Agabi, Gaspar Bakos, David Charbonneau, Kevin Collins, Knicole D. Colon, Nicolas Crouzet, Georgina Dransfield, Phil Evans, Robert F. Goeke, Rhodes Hart, Jonathan M. Irwin, Eric L. N. Jensen, Andres Jordan, John F. Kielkopf, David W. Latham, Wenceslas Marie-Sainte, Djamel Mekarnia, Peter Nelson, Samuel N. Quinn, Don J. Radford, David R. Rodriguez, Pamela Rowden, Francois-Xavier Schmider, Richard P. Schwarz, Jeffrey C. Smith, Chris Stockdale, Olga Suarez, Thiam-Guan Tan, Amaury H. M. J. Triaud, William Waalkes, Geof Wingham
Summary: We report the discovery of five transiting companions near the hydrogen-burning mass limit in close orbits around main sequence stars originally identified by the Transiting Exoplanet Survey Satellite (TESS). These companions have small orbital periods, masses between 77 and 98 Earth masses, and radii between 0.81 and 1.66 Jupiter radii. The findings provide valuable insights for testing formation models of rare objects and distinguishing between brown dwarfs and hydrogen-burning main sequence stars.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
R. E. Ryan, P. Thorman, C. Aganze, A. J. Burgasser, S. H. Cohen, N. P. Hathi, B. Holwerda, N. Pirzkal, R. A. Windhorst
Summary: In this study, a self-consistent model of the Milky Way is presented to reproduce the observed distributions and total velocity dispersion of brown dwarfs. The results suggest that brown dwarfs likely form via similar processes as main-sequence stars. Wide-field infrared imaging or low-resolution spectroscopic surveys are recommended for further refinement of these conclusions.
ASTROPHYSICAL JOURNAL
(2022)
Article
Clinical Neurology
Francisco P. M. Oliveira, Zuzana Walker, Rodney W. H. Walker, Johannes Attems, Joana C. Castanheira, Angelo Silva, Carla Oliveira, Sofia Vaz, Mariana Silva, Durval C. Costa
Summary: The study aimed to differentiate patients with DLB, PD, and AD using quantitative analysis of I-123-FP-CIT SPECT scans. Both visual and quantitative analyses showed high accuracy in distinguishing between these diseases, with balanced accuracies ranging from 94% to 100% in binary classifications and 93% in differentiation among all three diseases simultaneously.
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2021)
Article
Astronomy & Astrophysics
I. Soszynski, A. Olechowska, M. Ratajczak, P. Iwanek, D. M. Skowron, P. Mroz, P. Pietrukowicz, A. Udalski, M. K. Szymanski, J. Skowron, M. Gromadzki, R. Poleski, S. Kozlowski, M. Wrona, K. Ulaczyk, K. Rybicki
Summary: The phenomenon of long secondary periods (LSPs) observed in a third of pulsating red giant stars is shown to be caused by a substellar or stellar companion orbiting the red giant, with the physical mechanism responsible for LSPs being binarity. This conclusion is based on the investigation and selection of about 16,000 LSP variables, with approximately half of them displaying secondary eclipses, providing important evidence to support the conclusion.
ASTROPHYSICAL JOURNAL LETTERS
(2021)
Article
Astronomy & Astrophysics
Patryk Iwanek, Szymon Kozlowski, Mariusz Gromadzki, Igor Soszynski, Marcin Wrona, Jan Skowron, Milena Ratajczak, Andrzej Udalski, Michal K. Szymanski, Pawel Pietrukowicz, Krzysztof Ulaczyk, Radoslaw Poleski, Przemyslaw Mroz, Dorota M. Skowron, Krzysztof Rybicki
Summary: This study comprehensively investigates the variability of Miras in the Large Magellanic Cloud, revealing the trends of variability amplitude ratio and phase lag with wavelength in different bands, as well as the need for a cool component in the spectral energy distributions of carbon-rich Miras to match mid-IR data. By fitting SEDs, synthetic period-luminosity relations were calculated for different sky surveys, showing a decrease in PLR slope with increasing wavelength for both oxygen-rich and carbon-rich Miras in the 0.1-40 mu m range. The study also presents the location and motions of Miras on color-magnitude and color-color diagrams.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2021)
Article
Astronomy & Astrophysics
Marcin Wrona, Milena Ratajczak, Piotr A. Kolaczek-Szymanski, Szymon Kozlowski, Igor Soszynski, Patryk Iwanek, Andrzej Udalski, Michal K. Szymanski, Pawel Pietrukowicz, Dorota M. Skowron, Jan Skowron, Przemek Mroz, Radoslaw Poleski, Mariusz Gromadzki, Krzysztof Ulaczyk, Krzysztof Rybicki
Summary: This study introduces a collection of 991 heartbeat star (HBS) candidates found in the OGLE project data archive, consisting of stars located towards the Galactic bulge, Large Magellanic Cloud, and Small Magellanic Cloud. The stars are divided into two main groups based on the evolutionary status of the primary star, with one group featuring a hot main-sequence or a Hertzsprung-gap primary star and the other group including a red giant.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2022)
Article
Clinical Neurology
Daniele Altomare, Lyduine Collij, Camilla Caprioglio, Philip Scheltens, Bart N. M. van Berckel, Isadora Lopes Alves, Johannes Berkhof, Yvonne de Gier, Valentina Garibotto, Christian Moro, Lea Poitrine, Julien Delrieu, Pierre Payoux, Laure Saint-Aubert, Jose Luis Molinuevo, Oriol Grau-Rivera, Juan-Domingo Gispert, Carolina Minguillon, Karine Fauria, Marta Felez Sanchez, Andreea Radoi, Alexander Drzezga, Frank Jessen, Claus Escher, Philip Zeyen, Agneta Nordberg, Irina Savitcheva, Vesna Jelic, Zuzana Walker, Ho-Yun Lee, Lean Lee, Jean-Francois Demonet, Sonia Plaza Wuthrich, Rossella Gismondi, Gill Farrar, Frederik Barkhof, Andrew W. Stephens, Giovanni B. Frisoni
Summary: The AMYPAD Diagnostic and Patient Management Study aims to investigate the clinical utility and cost-effectiveness of amyloid-PET in Europe. Participants with subjective cognitive decline, mild cognitive impairment, or dementia were recruited in eight European memory clinics and randomized into three study arms. The baseline features of the participants were representative of a memory clinic population, ensuring the generalizability of the study results.
ALZHEIMERS & DEMENTIA
(2023)
Article
Astronomy & Astrophysics
Patryk Iwanek, Igor Soszynski, Szymon Kozlowski, Radoslaw Poleski, Pawel Pietrukowicz, Jan Skowron, Marcin Wrona, Przemyslaw Mroz, Andrzej Udalski, Michal K. Szymanski, Dorota M. Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Milena Ratajczak
Summary: This article presents a collection of Mira-type variable stars found in the OGLE project database, providing their observational parameters and photometric data. The article also discusses the statistical features of these stars in different regions of the Milky Way and showcases examples of stars changing their type over time.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2022)
Article
Clinical Neurology
Harriet Demnitz-King, Julie Gonneaud, Olga M. Klimecki, Anne Chocat, Fabienne Collette, Sophie Dautricourt, Frank Jessen, Pierre Krolak-Salmon, Antoine Lutz, Rachel M. Morse, Jose Luis Molinuevo, Geraldine Poisnel, Edelweiss Touron, Miranka Wirth, Zuzana Walker, Gael Chetelat, Natalie L. Marchant
Summary: This study aims to explore the association between self-reflection and Alzheimer's disease (AD)-sensitive markers. The results show that self-reflection is associated with better global cognition and higher glucose metabolism, but not with amyloid deposition. However, further research is needed to determine whether these associations are independent of health and lifestyle factors.
Article
Medicine, Research & Experimental
M. Poppe, L. Duffy, N. L. Marchant, J. A. Barber, R. Hunter, N. Bass, A. M. Minihane, K. Walters, P. Higgs, P. Rapaport, I. A. Lang, S. Morgan-Trimmer, J. Huntley, Z. Walker, H. Brodaty, H. C. Kales, K. Ritchie, A. Burton, J. Wenborn, A. Betz, C. Cooper
Summary: This study aims to determine if a personally tailored secondary dementia prevention program, delivered remotely and facilitated by non-clinical interventionists, can reduce cognitive decline in older adults. The intervention focuses on promoting healthy lifestyle, increasing pleasurable activities and social connections, and improving self-management. The results of this study could greatly benefit older adults with memory concerns by providing them with effective interventions.
Article
Astronomy & Astrophysics
Tomer Shenar, Hugues Sana, Laurent Mahy, Kareem El-Badry, Pablo Marchant, Norbert Langer, Calum Hawcroft, Matthias Fabry, Koushik Sen, Leonardo A. Almeida, Michael Abdul-Masih, Julia Bodensteiner, Paul A. Crowther, Mark Gieles, Mariusz Gromadzki, Vincent Henault-Brunet, Artemio Herrero, Alex de Koter, Patryk Iwanek, Szymon Kozlowski, Daniel J. Lennon, Jesus Maiz Apellaniz, Przemyslaw Mroz, Anthony F. J. Moffat, Annachiara Picco, Pawel Pietrukowicz, Radoslaw Poleski, Krzysztof Rybicki, Fabian R. N. Schneider, Dorota M. Skowron, Jan Skowron, Igor Soszynski, Michal K. Szymanski, Silvia Toonen, Andrzej Udalski, Krzysztof Ulaczyk, Jorick S. Vink, Marcin Wrona
Summary: In this study, a massive X-ray-faint binary star system was discovered in the Large Magellanic Cloud, consisting of a 25 solar mass O-type star and an unseen companion with a minimum mass of nine solar masses, possibly indicating a black hole. This finding has significant implications for the predicted rates of gravitational-wave detections and properties of core-collapse supernovae.
Article
Astronomy & Astrophysics
Patryk Iwanek, Radoslaw Poleski, Szymon Kozlowski, Igor Soszynski, Pawel Pietrukowicz, Makiko Ban, Jan Skowron, Przemyslaw Mroz, Marcin Wrona, Andrzej Udalski, Michal K. Szymanski, Dorota M. Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Milena Ratajczak
Summary: We analyzed the spatial distribution of 65,981 Mira variable stars in the Milky Way using a model that includes three bar components and an axisymmetric disk. By considering distance uncertainties, we calculated the distance to the Galactic center as 7.66 +/- 0.01(stat.) +/- 0.39(sys.) kpc and the inclination of the bulge to the Sun-GC line of sight as theta = 20.degrees 2 +/- 0.degrees 6(stat.) +/- 0.degrees 7(sys.). Our study provides evidence for the X-shaped bulge and a possibly warped flaring disk in the Milky Way.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Review
Clinical Neurology
John T. O'Brien, Leonidas Chouliaras, Janet Sultana, John-Paul Taylor, Clive Ballard
Summary: Drug repositioning and repurposing have proven effective in discovering new treatments for diseases, including Lewy body dementia. In this study, several promising compounds were reviewed and prioritized through an International Delphi consensus study. Ambroxol emerged as the top-ranked repurposed agent, and six additional agents were identified as worthy of clinical trials. Phase II or III clinical trials for these compounds in Lewy body dementia are now recommended.
ALZHEIMERS RESEARCH & THERAPY
(2022)
Article
Astronomy & Astrophysics
P. Pietrukowicz, M. Ratajczak, I Soszynski, A. Udalski, M. K. Szymanski, K. Ulaczyk, R. Poleski, S. Kozlowski, J. Skowron, D. M. Skowron, P. Mroz, K. Rybicki, P. Iwanek, M. Wrona, M. Gromadzki
Summary: We classify 24 puzzling short-period variable stars as delta Sct-type pulsators based on low-amplitude and multi-periodic characteristics, which could not be unambiguously determined by photometry alone. Low-resolution spectroscopic observations reveal that all the stars are main sequence A/F-type stars. They have been added to the OGLE-IV Collection of Variable Stars.
Meeting Abstract
Radiology, Nuclear Medicine & Medical Imaging
D. Altomare, F. Barkhof, C. Caprioglio, L. E. Collij, P. Scheltens, B. N. M. van Berckel, I. Lopes Alves, J. Berkhof, I. S. van Maurik, V. Garibotto, C. Moro, J. Delrieu, J. Molinuevo, O. Grau-Rivera, J. Gispert, A. Drzezga, F. Jessen, A. Nordberg, Z. Walker, J. Demonet, R. Gismondi, G. Farrar, A. W. Stephens, G. B. Frisoni
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2022)
Meeting Abstract
Radiology, Nuclear Medicine & Medical Imaging
L. Collij, C. Buckley, A. Palombit, K. Gray, M. Shekari, G. Salvado, M. Battle, D. Altomare, R. Gismondi, A. Stephens, V. Garibotto, B. N. van Berckel, C. Ritchie, P. Payoux, B. Vellas, O. Grau, M. Boada, A. Drzezga, P. Scheltens, Z. Walker, J. Demonet, A. Nordberg, P. Visser, G. Frisoni, G. Farrar, F. Barkhof, J. Gispert
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2021)
Article
Astronomy & Astrophysics
I Soszynski, P. Pietrukowicz, J. Skowron, A. Udalski, M. K. Szymanski, D. M. Skowron, R. Poleski, S. Kozlowski, P. Mroz, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona, M. Gromadzki
Summary: This study presents the largest collection of delta Scuti-type stars in the Milky Way, totaling 24,488 objects distributed along the Milky Way plane. By analyzing the photometry data, the study explores the distribution, periods, luminosities, and amplitudes of these stars, as well as identifies 34 delta Sct stars in eclipsing and ellipsoidal binary systems.