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This study aims to assess the properties and classification of 40 variable stars in Sagittarius, little studied since their discovery and reported in the Information Bulletin on Variable Stars (IBVS) 985 and update. Using data from previous…

Solar and Stellar Astrophysics · Physics 2021-10-07 G. Agli' , G. Arcomano , G. Bello , V. Bocchino , G. Bruno , C. Carro , M. Charrier , F. Fantino , G. Hu , M. Ricco , M. Ughetto-Monfrin , C. Benna , D. Gardiol , G. Pettiti , -

With the advent of surveys generating multi-epoch photometry and the discovery of large numbers of variable stars, the classification of these stars has to be automatic. We have developed such a classification procedure for about 1700 stars…

Astrophysics · Physics 2009-11-10 L. Eyer , C. Blake

We search a sample of 5,685,060 isolated sources in the All Sky Automated Survey for SuperNovae (ASAS-SN) with 14.5<g<15 mag for slowly varying sources with brightness changes larger than ~0.03 mag/year over 10 years. We find 426…

Solar and Stellar Astrophysics · Physics 2025-11-06 Sydney Petz , C. S. Kochanek , K. Z. Stanek , Benjamin J. Shappee , Subo Dong , J. L. Prieto , Todd A. Thompson

The Asteroid Terrestrial-impact Last Alert System (ATLAS) carries out its primary planetary defense mission by surveying about 13000 deg^2 at least four times per night. The resulting data set is useful for the discovery of variable stars…

This paper describes the first part of the photometric data from the 9x9 deg ASAS cameras monitoring the whole southern hemisphere in V-band. Data acquisition and reduction pipeline is described and preliminary list of variable stars is…

Astrophysics · Physics 2009-07-09 G. Pojmanski

Rotational variables are stars that vary in brightness due to star spots modulated by rotation. They are probes of stellar magnetism, binarity, and evolution. Phillips et al. (2023) explored distinct populations of ~50,000 high-amplitude…

Solar and Stellar Astrophysics · Physics 2025-06-18 Jack Stethem , Christopher S. Kochanek , Anya Phillips , Lyra Cao , Marc Pinsonneault

The stellar evolution theory of massive stars remains uncalibrated with high-precision photometric observational data mainly due to a small number of luminous stars that are monitored from space. Automated all-sky surveys have revealed…

Solar and Stellar Astrophysics · Physics 2017-02-08 Jaan Laur , Indrek Kolka , Tõnis Eenmäe , Taavi Tuvikene , Laurits Leedjärv

We present the first results from the SuperWASP Variable Stars (SVS) citizen science project. The photometry archive of the Wide Angle Search for Planets has previously been searched for periodic variations and the results of this search…

Solar and Stellar Astrophysics · Physics 2021-11-17 Adam McMaster , Andrew J. Norton , Hugh J. Dickinson , Heidi B. Thiemann , Ulrich C. Kolb

Detached eclipsing binaries are the primary tool used to measure precise masses and radii of stars. In our previous paper estimating the parameters of more than 30,000 detached eclipsing binaries, we identified 766 eclipsing binaries with…

Solar and Stellar Astrophysics · Physics 2023-01-25 D. M. Rowan , T. Jayasinghe , K. Z. Stanek , C. S. Kochanek , Todd A. Thompson , B. J. Shappee , T. W. -S. Holoien , J. L. Prieto , W. Giles

The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars. Using…

Solar and Stellar Astrophysics · Physics 2024-12-10 Xinyi Gao , Xiaodian Chen , Shu Wang , Jifeng Liu

This manuscript presents information for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) during 2015, its second full year of operations. The same information is presented for bright ($m_V\leq17$),…

The Transiting Exoplanet Survey Satellite (TESS) is a wide-field all-sky survey mission designed to detect Earth-sized exoplanets. After over four years photometric surveys, data from sectors 1-57, including approximately 1,050,000 light…

Solar and Stellar Astrophysics · Physics 2025-04-02 Li-Heng Wang , Kai Li , Xiang Gao , Ya-Ni Guo , Guo-You Sun

ASAS is a long term project to monitor bright variable stars over the whole sky. It has discovered 50,122 variables brighter than V < 14 mag south of declination +28 degrees, and among them 11,099 eclipsing binaries. We present a…

Astrophysics · Physics 2009-11-11 B. Paczynski , D. Szczygiel , B. Pilecki , G. Pojmanski

We present basic statistics for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) during its first year-and-a-half of operations, spanning 2013 and 2014. We also present the same information for all other…

In this paper we present the fourth part of the photometric data from the 9x9 deg ASAS camera monitoring the whole southern hemisphere in V-band. Preliminary list (based on observations obtained since January 2001) of variable stars located…

Astrophysics · Physics 2007-05-23 G. Pojmanski , Gracjan Maciejewski

We present the first estimate of the Galactic nova rate based on optical transient surveys covering the entire sky. Using data from the All-Sky Automated Survey for Supernovae (ASAS-SN) and \textit{Gaia} -- the only two all-sky surveys to…

This study aims to assess the properties and classification of 55 variable stars in Scutum, little studied since their discovery and reported in the Information Bulletin on Variable Stars (IBVS) 985 and update. Using data from previous…

Solar and Stellar Astrophysics · Physics 2021-10-15 C. Crozza , S. Curelar , D. Dell'Aglio , F. La Scala , A. Millitari , A. Montella , C. Orobello , C. Benna , D. Gardiol , G. Pettiti , -

This study aims to assess the properties and classification of 62 variable stars in Cygnus, little studied since their discovery and originally reported in the Information Bulletin on Variable Stars (IBVS) 1302. Using data from previous…

Solar and Stellar Astrophysics · Physics 2021-01-19 P. La Rocca , M. Bonasia , P. Moreo , C. Zamariola , C. Benna , D. Gardiol , G. Pettiti

Based on over 5400 BV images of 47 Tuc collected between 1998 and 2010 we obtained light curves of 65 variables, 21 of which are newly detected objects. New variables are located mostly just outside of the core in a region poorly studied by…

Solar and Stellar Astrophysics · Physics 2014-05-26 J. Kaluzny , M. Rozyczka , W. Pych , W. Krzeminski , K. Zloczewski , W. Narloch

The All-Sky Automated Survey for Supernovae (ASAS-SN) began observing in late-2011 and has been imaging the entire sky with nightly cadence since late 2017. A core goal of ASAS-SN is to release as much useful data as possible to the…

Instrumentation and Methods for Astrophysics · Physics 2023-04-11 K. Hart , B. J. Shappee , D. Hey , C. S. Kochanek , K. Z. Stanek , L. Lim , S. Dobbs , M. Tucker , T. Jayasinghe , J. F. Beacom , T. Boright , T. Holoien , J. M. Joel Ong , J. L. Prieto , T. A. Thompson , D. Will