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Related papers: Variable Star Census in CoRoT "Eyes"

200 papers

The space experiment CoRoT will provide continuous monitoring and high accuracy light curves of about sixty thousand stars. Selected binary systems will be observed in the Additional Program frame as targets of long and continuous pointed…

Astrophysics · Physics 2016-08-30 Carla Maceroni , Ignasi Ribas

We present the results of a photometric search for variable stars in the core of the Galactic globular cluster M4. The input data are a large and unprecedented set of deep Hubble Space Telescope WFC3 images (large program GO-12911; 120…

Variability Search Toolkit (VaST) is a software package designed to find variable objects in a series of sky images. It can be run from a script or interactively using its graphical interface. VaST relies on source list matching as opposed…

Instrumentation and Methods for Astrophysics · Physics 2017-12-19 Kirill V. Sokolovsky , Alexandr A. Lebedev

We present the results of a systematic search for large-scale spectroscopic variability in apparently single Wolf-Rayet stars brighter than ~12.5. In this first paper we characterize the various forms of variability detected and distinguish…

Solar and Stellar Astrophysics · Physics 2011-02-11 N. St-Louis , A. -N. Chene , O. Schnurr , M. -H. Nicol

A long-term project, aiming at systematic search for variable stars in Galactic Open Clusters, was started at the Geneva Observatory in 2002. We have been observing regularly a sample of twenty-seven Galactic Open Clusters in the U, B, V…

Solar and Stellar Astrophysics · Physics 2015-05-13 Claudia Greco , Nami Mowlavi , Laurent Eyer , Maxime Spano , Mihaly Varadi , Gilbert Burki

Results of the first two years of observations using the All Sky Automated Survey prototype camera are presented. More than 140 000 stars in 50 Selected Fields covering 300 sq. degrees were monitored each clear night in the I-band resulting…

Astrophysics · Physics 2009-09-15 Pojmanski , G

We present results of a UBVIc variability survey in the young open cluster NGC 2244. In total, we found 245 variable stars. Most of them, 211 stars, are variables with irregular variations. Furthermore, 23 periodic variables were found. We…

Solar and Stellar Astrophysics · Physics 2019-06-12 Gabriela Michalska

We have conducted a large-scale survey of the northern plane using Kiso Wide Field Camera attached to Schmidt telescope at Kiso observatory. The KISOGP (KWFC Intensive Survey of the Galactic Plane) project have made 40-70 epoch observations…

Solar and Stellar Astrophysics · Physics 2017-09-13 Noriyuki Matsunaga

We report the results of our search for pulsating subdwarf B stars in Full Frame Images, sampled at 30 min cadence and collected during Year 1 of the TESS mission. Year 1 covers most of the southern ecliptic hemisphere. The sample of…

Solar and Stellar Astrophysics · Physics 2020-11-09 S. K. Sahoo , A. S. Baran , S. Sanjayan , J. Ostrowski

A few percent of all stars are variable, yet over 90% of variables brighter than 12 magnitude have not been discovered yet. There is a need for an all sky search and for the early detection of any unexpected events: optical flashes from…

Astrophysics · Physics 2009-10-31 Bohdan Paczynski

In this paper, we report the detections of stellar variabilities from the first 2-year observations of sky area of about 1300 square degrees from the Tsinghua University-NAOC Transient Survey (TNTS). A total of 1237 variable stars…

Solar and Stellar Astrophysics · Physics 2015-09-23 Xinyu Yao , Lingzhi Wang , Xiaofeng Wang , Tianmeng Zhang , Juncheng Chen , Wenlong Yuan , Jun Mo , Wenxiong Li , Zhiping Jin , Xuefeng Wu , JunDan Nie , Xu Zhou

We have conducted a near-infrared monitoring campaign at the UK InfraRed Telescope (UKIRT), of the Local Group spiral galaxy M33 (Triangulum). The main aim was to identify stars in the very final stage of their evolution, and for which the…

Solar and Stellar Astrophysics · Physics 2015-06-23 Atefeh Javadi , Maryam Saberi , Jacco Th. van Loon , Habib Khosroshahi , Najmeh Golabatooni , Mohammad Taghi Mirtorabi

This paper contains the fifth part of the Catalog of Variable Stars created from the V-band photometric data collected by 9x9 deg camera of the All Sky Automated Survey. Preliminary list of variable stars found in the fields located between…

Astrophysics · Physics 2007-05-23 G. Pojmanski , B. Pilecki , D. Szczygiel

We present the first results from a 124 night J, H, K near-infrared monitoring campaign of the dark cloud L 1003 in Cygnus OB7, an active star-forming region. Using 3 seasons of UKIRT observations spanning 1.5 years, we obtained…

Solar and Stellar Astrophysics · Physics 2015-06-05 Thomas S. Rice , Scott J. Wolk , Colin Aspin

The All-Sky Automated Survey for Supernovae (ASAS-SN) is the first optical survey to monitor the entire sky, currently with a cadence of $\lesssim 24$ hours down to $g \lesssim 18.5$ mag. ASAS-SN has routinely operated since 2013,…

We present results of variability search in the field of the young open cluster NGC 1502. Eight variable stars were discovered. Of six other stars in the observed field that were suspected for variability, we confirm variability of two,…

Solar and Stellar Astrophysics · Physics 2009-12-04 G. Michalska , A. Pigulski , M. Stęślicki , A. Narwid

As a result of applying the original optical variability search method on publicly available data, we have found eight new cataclysmic variables and two possible Optically Violent Variable quasars among the previously unidentified X-ray…

Solar and Stellar Astrophysics · Physics 2015-05-19 D. V. Denisenko , K. V. Sokolovsky

We present results of the search for variable stars in the field of young open cluster NGC 581. Based on 19 nights of observations, 6 new variable stars were discovered. Two of them turned out to be eclipsing binary systems. Another two…

Astrophysics · Physics 2007-05-23 L. Wyrzykowski , G. Pietrzynski , O. Szewczyk

This work presents the charge-coupled device (CCD) photometric survey of the old open cluster NGC 188. Time-series V-band photometric observations were conducted for ten nights in January 2017 using the Nanshan One-meter Wide-field…

Solar and Stellar Astrophysics · Physics 2023-08-16 Fang-Fang Song , Hu-Biao Niu , Ali Esamdin , Yu Zhang , Xiang-Yun Zeng

This paper describes the second part of the photometric data from the 9x9 deg ASAS camera monitoring the whole southern hemisphere in the V-band. Preliminary list of variable stars based on observations obtained since January 2001 is…

Astrophysics · Physics 2007-05-23 G. Pojmanski