Results 31 to 40 of about 128,153 (317)
Observation of periodic variable stars towards the Galactic spiral arms by EROS II [PDF]
, 2002 We present the results of a massive variability search based on a photometric survey of a six square degree region along the Galactic plane at (l = 305, b = 0:8 )a nd (l = 330, b = 2:5).
F. Derue +48 more
openalex +3 more sources
Periodic Variable Star Classification with Deep Learning: Handling Data Imbalance in an Ensemble Augmentation Way [PDF]
Publications of the Astronomical Society of the Pacific, 2023 Time-domain astronomy is progressing rapidly with the ongoing and upcoming large-scale photometric sky surveys led by the Vera C. Rubin Observatory project (LSST). Billions of variable sources call for better automatic classification algorithms for light
Zihan Kang +6 more
semanticscholar +1 more source
Variability Catalog of Stars Observed during the TESS Prime Mission
The Astrophysical Journal Supplement Series, 2023 During its 2 yr Prime Mission, TESS observed over 232,000 stars at a 2 minute cadence across ∼70% of the sky. These data provide a record of photometric variability across a range of astrophysically interesting timescales, probing stellar rotation ...
Tara Fetherolf +12 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 Light variability is an essential attribute of young stellar objects (YSOs) at the pre-main-sequence (PMS) stage, which can be treated as an indicator to trace star formation.
Ying Mei +4 more
doaj +1 more source
Periodic variable A-F spectral type stars in the southern TESS continuous viewing zone [PDF]
Astronomy & AstrophysicsOur primary objective is to accurately identify and classify the variability of A-F stars in the southern continuous viewing zone of the TESS satellite. The brightness limit was set to 10\,mag to ensure the utmost reliability of our results and allow for
M. Skarka, Z. Henzl
openalex +3 more sources
V4142 Sgr: A double periodic variable with an accretor surrounded by the accretion disk's atmosphere [PDF]
Astronomy & Astrophysics, 2022 Context: A detailed study of the close interacting binary V4142\,Sgr based on photometric and spectroscopic analysis is presented.This system belongs to the enigmatic class of Algol-like variables showing a long photometric cycle of unknown nature. Aims:
J. Rosales +6 more
semanticscholar +1 more source
THE CATALINA SURVEYS PERIODIC VARIABLE STAR CATALOG [PDF]
The Astrophysical Journal Supplement Series, 2014 Accepted ApJS, 43 pages, 9 tables, 44 figures (some at reduced resolution)
A. J. Drake +20 more
openaire +4 more sources
New Double Periodic Variable stars in the ASAS-SN Catalog [PDF]
Information Bulletin on Variable Stars, 2019 We report the discovery of 3 new Double Periodic Variables based on the analysis of ASAS-SN light curves: GSD J11630570-510306, V593 Sco and TYC 6939-678-1.
Konkoly Observatory +2 more
semanticscholar +1 more source
Detecting Short Period Variable Stars with Gaia [PDF]
AIP Conference Proceedings, 2009 We analyzed the frequency domain of time series of simulated ZZ Ceti light-curves to investigate the detectability and period recovery performance of short period variables (periods < 2 hours) for the Gaia mission. In our analysis, first we used a non-linear ZZ Ceti light-curves simulator code to simulate the variability of ZZ Ceti stars (we assumed
Mihaly Varadi +6 more
openaire +2 more sources
On the new late B- and early A-type periodic variable stars [PDF]
Proceedings of the International Astronomical Union, 2013 We summarize the properties of the new periodic, small-amplitude, variable stars recently discovered in the open cluster NGC 3766. They are located in the region of the Hertzsprung-Russell diagram between δ Sct and slowly pulsating B stars, a region ...
N. Mowlavï +3 more
openalex +3 more sources