Results 1 to 10 of about 360 (242)

Analysis of pulsating variable stars using the visibility graph algorithm [PDF]

open access: yesPLoS ONE, 2021
We study the light curves of pulsating variable stars using a complex network approach to build visibility graphs. We consider various types of variables stars (e.g., Cepheids, δ Scuti, RR Lyrae), build two types of graphs (the normal visibility graph ...
Víctor Muñoz, N. Elizabeth Garcés
doaj   +7 more sources

Pulsating variable stars and large spectroscopic surveys [PDF]

open access: yesEPJ Web of Conferences, 2017
In the past decade, the research of pulsating variable stars has taken a giant leap forward thanks to the photometric measurements provided by space missions like Most, CoRoT, Kepler/K2, and Brite.
De Cat Peter
doaj   +2 more sources

Observational Properties of 155 β Cephei Pulsating Variable Stars

open access: yesThe Astrophysical Journal Supplement Series
β Cephei pulsating variable (BCEP) stars are the most massive pulsating variable stars in the main sequence, exhibiting both p - and g -mode pulsations. In this study, we identified 155 BCEP stars or candidates using data from TESS and Gaia, of which 83 ...
Xiang-dong Shi   +5 more
doaj   +3 more sources

THE ONSET OF CHAOS IN PULSATING VARIABLE STARS

open access: yesOdessa Astronomical Publications, 2010
Random changes in pulsation period occur in cool pulsating Mira variables, Type A, B, and C semiregular variables, RV Tauri variables, and in most classical Cepheids.
D. G. Turner   +3 more
doaj   +3 more sources

MULTI-COMPONENT VARIABILITY OF PULSATING VARIABLE STARS OF RV TAURI TYPE

open access: yesOdessa Astronomical Publications, 2020
For the group of pulsating variable stars with multi-component variability – which are currently classified as the RV Tau-type stars – the classification based on complexity of the periodograms is discussed.
L. S. Kudashkina
doaj   +3 more sources

Observational Properties of 155 O- and B-type Massive Pulsating Stars

open access: yesThe Astrophysical Journal Supplement Series, 2023
O- and B-type (OB-type) pulsating stars are important objects for studying the structure and evolution of massive stars through asteroseismology. A large amount of data from various sky surveys provides an unprecedented opportunity to search for and ...
Xiang-dong Shi   +5 more
doaj   +1 more source

Investigating Stellar Variability in the Open Cluster Region NGC 381

open access: yesThe 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

A Catalog of New Slowly Pulsating B-type Stars

open access: yesThe Astrophysical Journal Supplement Series, 2023
This paper reports the discovery of new slowly pulsating B-type stars. Based on the photometric, spectral, and astrometric data of the TESS, LAMOST, and Gaia surveys, we have found 286 new slowly pulsating B-type (SPB) stars and 21 candidates.
Xiang-dong Shi   +3 more
doaj   +1 more source

Magnetic Activity of Different Types of Variable Stars Observed by TESS Mission

open access: yesUniverse, 2023
The investigation of the magnetic activity of different types of variable stars holds significant implications for our understanding of the physical processes and evolution of stars.
Ming Zhong   +3 more
doaj   +1 more source

Magnetic and pulsational variability of Przybylski’s star (HD 101065) [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
11 pages, 4 tables, 7 figures, accepted for publication in ...
Hubrig, S.   +6 more
openaire   +2 more sources

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