Massive Stars as the Radiant Queens of the Universe—The Case of ζ Puppis
Universe, 2022 Since the Cosmic Dawn, massive stars have been playing a crucial role as the chemical recycling engines of galaxies that enable the birth of new stars and planetary systems, not only through the strong winds that they exhibit during their relatively ...
Tahina Ramiaramanantsoa +1 more
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Monitoring active stars 29 Dra, 12 Cam and colour excess of II Peg [PDF]
Serbian Astronomical Journal, 2007 We present the BV light curves analysis of late-type, long-period stars 29 Dra, 12 Cam for the season 2005/2006, and shorter-period star II Peg for the same season.
Zboril M.
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Differential photometry of EK DRA and 29 DRA [PDF]
Serbian Astronomical Journal, 2005 We report on BVR precise photometry of active late-type stars EK DRA and 29 DRA in the spring of 2004. The analysis suggests a reasonable fit with single spot model for both cases in the season as far as the V-curve is concerned.
Zboril M.
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Progress report on the monitoring active late-type stars in 2005/2006 and the analysis of V523 Cas [PDF]
Serbian Astronomical Journal, 2006 We present the light curve analysis of late-type binary V523 Cas for the season 2005. The spot has been revealed on the secondary. According to theoretical considerations, the spot appeared to be hotter than the surrounding photosphere and located at ...
Zboril M., Đurašević G.
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Starspot Activity without Pulsation in the Binary System KIC 5444392 Revisited
Universe, 2023 We revisited the short-period (∼1.5 days) binary system KIC 5444392, which shows quasi-period modulated light variations. Previous studies indicated that these variations might be caused by stellar pulsations.
Mengqi Jin +3 more
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Under-Developed and Under-Utilized Eclipsing Binary Model Capabilities [PDF]
Journal of Astronomy and Space Sciences, 2012 Existing but largely unused binary star model capabilities are examined. An easily implemented scheme is parameterization of starspot growth and decay that can stimulate work on outer convection zones and their dynamos.
R. E. Wilson
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Joint Modeling of Radial Velocities and Photometry with a Gaussian Process Framework
The Astrophysical Journal, 2023 Developments in the stability of modern spectrographs have led to extremely precise instrumental radial velocity (RV) measurements. For most stars, the detection limit of planetary companions with these instruments is expected to be dominated by ...
Quang H. Tran +3 more
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Light curve analysis of W-UMa type binary systems RZ UMi, OQ UMa, LP UMa [PDF]
Serbian Astronomical JournalThis study presents new, high-quality, optical photometric observations of three W-UMa type contact binaries. The analysis of the corresponding light curves is made using Djurašević's inverse problem method.
Grozdanović M., Đurašević G.
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Contemporaneous Observations of Hα Luminosities and Photometric Amplitudes for M Dwarfs
The Astronomical Journal, 2023 While many M dwarfs are known to have strong magnetic fields and high levels of magnetic activity, we are still unsure about the properties of their starspots and the origin of their magnetic dynamos.
Aylin García Soto +4 more
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A New Approach to the Long-Term Activity Behavior of DM UMa
Open Astronomy, 2012 A long-term activity character of DM UMa (K0-1 IV-III), which is one of the most active members of the RS CVn type variables, is examined using the multicolor photometric observations which spread to the time interval between 1980 and 2009. In this work,
Taş G., Evren S.
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