Results 31 to 40 of about 11,830 (280)

A Rapidly Evolving High-amplitude δ Scuti Star Crossing the Hertzsprung Gap

The Astrophysical Journal Letters, 2022
In this work, we report the discovery of the rapidly evolving high-amplitude δ Scuti star KIC 6382916 (J19480292+4146558), which is crossing the Hertzsprung gap.
Jia-Shu Niu, Hui-Fang Xue
doaj   +1 more source

White-Dwarf Asteroseismology With the Kepler Space Telescope

Frontiers in Astronomy and Space Sciences, 2020
In the course of their evolution, white-dwarf stars go through at least one phase of variability in which the global pulsations they undergo allow astronomers to peer into their interiors, making it possible to shed light on their deep inner structure ...
Alejandro H. Córsico, Alejandro H. Córsico   +1 more
doaj   +1 more source

Photometric Properties of Long-period Variables in the Large Magellanic Cloud [PDF]

, 2002
Approximately four thousand light curves of red variable stars in the LMC were selected from the 2.3-years duration MOA database by a period analysis using the Phase Dispersion Minimization method.
M-R Cioni, MW Feast, N Epchtein, PR Wood, PR Wood, S Noda, SMG Hughes   +6 more
core   +2 more sources

The AAVSO and its Variable Star Databank on Pulsating Stars [PDF]

International Astronomical Union Colloquium, 1995
AbstractThe American Association of Variable Stars Observers is the world’s largest organization of variable star observers. Its services to the astronomical community and database on pulsating variables are described.
openaire   +1 more source

RR Lyrae Stars and Anomalous Cepheids as Population Tracers in Local Group Galaxies

Universe, 2022
We discuss the use and importance of pulsating variable stars as population tracers in Local Group galaxies. Among bright variable crossing the classical instability strip, we mostly focus on RR Lyrae stars and Anomalous Cepheids.
Matteo Monelli, Giuliana Fiorentino
doaj   +1 more source

Observations of red-giant variable stars by Aboriginal Australians

, 2017
Aboriginal Australians carefully observe the properties and positions of stars, including both overt and subtle changes in their brightness, for subsistence and social application. These observations are encoded in oral tradition.
Allen R. H., Anonymous, Aristotle 350 BCE, Bailey J., Bailey J., Bates D., Battiste M., Berndt R. M., Berndt R. M., Bhathal R., Cairns H. C., Clarke P. A., Clarke P. A., Clarke P. A., Clarke P. A., Clunies Ross M., Frew D. J., Hamacher D. W., Hamacher D. W., Hamacher D. W., Hamacher D. W., Hamacher D. W., Hamacher D. W., Hamacher D. W., Hamacher D. W., Harmanec P., Haynes R. D., Herschel J. F. W., Hoffleit D., Howitt A., Isles J., Jetsu L., Johnson D. D., Johnson D. D., Leaman T. M., Maegraith B., McNight D., Meyer H. A. E., Mountford C. P., North G., Parker K. L., Prober S. M., Taplin G., Tindale N. B., Tindale N. B., Tindale N. B., White I. M., Wilk S. R., Wilk S. R.   +48 more
core   +1 more source

Double-Mode Radial Pulsations among RR Lyrae Stars [PDF]

, 2014
Double-mode RR Lyr type stars are important for studies of properties of horizontal-branch stars. In particular, two periods coupled with spectral properties give a mass estimate that is independent of evolutionary models.
Poleski, R.
core   +1 more source

Period-luminosity-color relations and pulsation modes of pulsating variable stars.

The Astrophysical Journal, 1975
The periods of delta Scuti, RR Lyrae, dwarf Cepheid, and W Virginis variables have been investigated for their dependence on luminosity, color, mass, and pulsation modes. A maximum-likelihood method, which includes consideration of the observational errors in each coordinate, has been applied to obtain observational period-luminosity-color (P-L-C ...
M. Breger, J. N. Bregman
openaire   +1 more source

Photometry of Variable Stars from Dome A, Antarctica [PDF]

, 2011
Dome A on the Antarctic plateau is likely one of the best observing sites on Earth thanks to the excellent atmospheric conditions present at the site during the long polar winter night.
Alcock, Baglin, Boisnard, Breger, Buchler, Carl R. Pennypacker, Daniel Luong-Van, Donald G. York, Huigen Yang, Ji Yang, John W. V. Storey, Jon S. Lawrence, Kaluzny, Kevin Krisciunas, Lasker, Lifan Wang, Lingzhi Wang, Long-Long Feng, Lucas M. Macri, Michael C. B. Ashley, Monet, Pojmanski, Qiang Liu, Riaz, Samus, Saunders, Smith, Storey, Wright, Xiangqun Cui, Xiangyan Yuan, Xu Zhou, Xuefei Gong, Zhaohui Shang, Zhenxi Zhu, Zhou, Zonghong Zhu, Zou   +37 more
core   +3 more sources

γ Doradus Stars: Defining a New Class of Pulsating Variables

Publications of the Astronomical Society of the Pacific, 1999
15 pages, 1 ps figure.
Kaye, Anthony B, Handler, Gerald, Krisciunas, Kevin, Poretti, Ennio, Zerbi, Filippo M.   +4 more
openaire   +3 more sources