Results 41 to 50 of about 12,020 (316)

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

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

Variable stars in the Open Cluster M11 (NGC 6705)

, 2007
V-band time-series CCD photometric observations of the intermediate-age open cluster M11 were performed to search for variable stars. Using these time-series data, we carefully examined light variations of all stars in the observing field.
Breger M., C.‐U. Lee, Frandsen S., Frandsen S., Hoffmeister C., J.‐R. Koo, Kaluzny J., McNamara B. J., Rodriguez E., Rodriguez E., Rucinski S. M., S.‐C. Rey, S.‐L. Kim, Vilhu O., Viskum M., Y. B. Kang, Y. H. Kim, Y.‐B. Jeon   +17 more
core   +1 more source

CoRoT's view of newly discovered B-star pulsators: results for 358 candidate B pulsators from the initial run's exoplanet field data [PDF]

, 2009
We search for new variable B-type pulsators in the CoRoT data assembled primarily for planet detection, as part of CoRoT's Additional Programme. We aim to explore the properties of newly discovered B-type pulsators from the uninterrupted CoRoT space ...
A. Baglin, A. Miglio, A. Noels, A. Thoul, Aerts, Asplund, Auvergne, Badnell, Balona, Breger, Buchler, C. Aerts, C. Maceroni, Chapellier, Debosscher, Degroote, Dupret, Dziembowski, Dziembowski, Eyer, F. Baudin, Frescura, Grigahcène, Handler, Handler, Hubert, I. Ribas, J. Cuypers, J. Debosscher, J. Montalbán, Koen, L. Balaguer-Núñez, L. Jorda, Lanza, Lomb, M. Auvergne, M. Briquet, M. Deleuil, M. Ollivier, Miglio, Miglio, Miglio, Montgomery, Moon, O'Donoghue, P. De Cat, P. Degroote, R. Samadi, Saio, Samadi, Savonije, Scargle, Scholz, Schwarzenberg-Czerny, Scuflaire, Scuflaire, Stankov, Strassmeier, Tassoul, Townsend, Vuille, W. W. Weiss, Waelkens, Zdravkov   +63 more
core   +6 more sources

Pulsations and Hydrodynamics of Luminous Blue Variable Stars [PDF]

Astronomical Review, 2012
The Luminous Blue Variable stars exhibit behavior ranging from light curve `microvariations' on timescales of tens of days, to `outbursts' accompanied by mass loss of up to 10e-03 solar masses per year, occurring decades apart, to `giant eruptions' such as seen in Eta Carinae ejecting one or more solar masses and recurring on timescales of centuries ...
Guzik, Joyce A., Lovekin, Catherine C.
openaire   +2 more sources

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

Pulsating and variable stars in the young open star cluster NGC 6231

, 2012
Diese Arbeit befasst sich mit den veränderlichen und im speziellen mit pulsierenden Sternen in NGC 6231, also Sternen die ü̈ber typische Zeiträume ihre Form und auch physikalischen Eigenschaften ändern. Obwohl sich schon einige Studien in den letzten 30 Jahren mit diesem Thema beschäftigt haben, fehlt immer noch ein vollständiges Bild von Pulsatoren in
Stefan Meingast
openalex   +2 more sources

On the pulsation parallax of the variable star RR Lyr [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
3 pages, accepted for publication in the pink pages of ...
Bono, G., Caputo, F., Castellani, V., Marconi, M., Storm, J.   +4 more
openaire   +2 more sources

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