Results 1 to 10 of about 11,813 (259)
Exploring central star variability of planetary nebulae using gaia photometry [PDF]
Scientific ReportsThis study presents an analysis of the variability of 81 central stars of planetary nebulae (CSPNe) are identified as variable in Gaia Data Release 3 (DR3).
M. A. NegmEldin +3 more
doaj +2 more sources
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACTBlue Large-Amplitude Pulsators (BLAPs) are a relatively new class of blue variable stars showing periodic variations in their light curves with periods shorter than a few tens of minutes and amplitudes of more than 10 per cent. We report nine blue variable stars identified in the OmegaWhite survey conducted using ESO’s VST, which shows a ...
Ulrich Heber +2 more
exaly +6 more sources
The OmegaWhite survey for short-period variable stars – VI. Open clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Using light curves with ∼3 min cadence and a duration of 2 h made using the OmegaWhite survey, we present the results of a search for short-period variable stars in the field of 20 open clusters. We identified 92 variable stars in these fields.
Sally Macfarlane +2 more
exaly +3 more sources
Short-period Variable Stars in Young Open Cluster Stock 8 [PDF]
Astronomical Journal, 2019 Abstract We present time-series photometry in the field of Stock 8 and identified 130 short-period variable stars. Twenty-eight main-sequence and 23 pre-main-sequence variables are found to be part of cluster Stock 8. The main-sequence variables are classified as slow pulsators of the B-type, β Cep, and δ Scuti stars.
Sneh Lata +2 more
exaly +4 more sources
System parameters of three short-period cataclysmic variable stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Using photometric ULTRACAM observations of three new short-period cataclysmic variables (CVs), we model the primary eclipse light curves to extract the orbital separation, masses, and radii of their component stars. We find donor masses of $0.060\pm 0.008\, {\rm M_\odot }$, $0.042\pm 0.001\, {\rm M_\odot }$, and $0.042\pm 0.004\,
J F Wild +11 more
openaire +5 more sources
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
Multifilter Time-series Observations of Eleven Blue Short-period ATLAS Variable Stars
The Astronomical Journal, 2023 Eleven periodic variable stars were observed photometrically through two to four filters from the set UBVR _C I _C . Phase-folded data for each star cover full cycles of variation.
C. Koen, V. Schaffenroth, A. Kniazev
doaj +1 more source
Investigating Stellar Variability in the Open Cluster Region NGC 381
The Astronomical Journal, 2023 We study variable stars in the field of the open cluster NGC 381 using photometric data observed over 27 nights and identify a total of 57 variable stars, six of which are member stars. The variable stars are classified based on their periods, amplitudes,
Jayanand Maurya +3 more
doaj +1 more source
An Investigation of Short-Period Variable Stars. II. The AI Velorum Stars
Astrophysical Journal, Supplement Series, 1969 M S Bessell
exaly +2 more sources