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Related papers: Classical Cepheids in the Milky Way

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Based on a search of the literature up to May 2001, the number of known variable stars in Galactic globular clusters is approximately 3000. Of these, more than 2200 have known periods and the majority (approximately 1800) are of the RR…

A systematic search for multi-mode Cepheids using the database of the ASAS-SN survey has led to the detection of thirteen new double-mode and two triple-mode Cepheids in the Galactic disk. These discoveries have increased the number of…

Solar and Stellar Astrophysics · Physics 2018-12-06 Johanna Jurcsik , Gergely Hajdu , Márcio Catelan

We present in this paper an exhaustive compilation of all published data of extragalactic Cepheids. We have checked every light curve in order to characterize the different types of Cepheid and detect potential overtone pulsators, or to…

Astrophysics · Physics 2021-07-14 P. Lanoix , R. Garnier , G. Paturel , C. Petit , J. Rousseau , H. Di Nella-Courtois

We describe variable stars found in the data collected during the OGLE-III Shallow Survey covering the I-band magnitude range from 9.7 mag to 14.5 mag. The main result is the extension of period--luminosity relations for Cepheids up to 134…

Classical Cepheid variable stars have been important indicators of extragalactic distance and Galactic evolution for over a century. The Spitzer Space Telescope has opened the possibility of extending the study of Cepheids into the mid- and…

Solar and Stellar Astrophysics · Physics 2014-11-20 M. Marengo , N. R. Evans , P. Barmby , G. Bono , D. L. Welch , M. Romaniello

We revisited the short period Type II Cepheids (T2Cs), called the BL Herculis (BLHs), in the Galactic Field to derive a homogeneous analysis of their Fourier parameters. Only V-band data were compiled to make sure that it was directly…

Solar and Stellar Astrophysics · Physics 2019-04-19 Monika I. Jurkovic

Masses of classical Cepheids of 3 to 11 M$\odot$ are predicted by theory but those measured, clump between 3.6 and 5 M$\odot$. As a result, their mass-luminosity relation is poorly constrained, impeding our understanding of basic stellar…

The period-change rate (PCR) of pulsating variable stars is a useful probe of changes in their interior structure, and thus of their evolutionary stages. So far, the PCRs of Classical Cepheids in the Large Magellanic Cloud (LMC) have been…

Solid insight into the physics of the inner Milky Way is key to understanding our Galaxy's evolution, but extreme dust obscuration has historically hindered efforts to map the area along the Galactic mid-plane. New comprehensive…

Astrophysics of Galaxies · Physics 2015-10-21 I. Dékány , D. Minniti , D. Majaess , M. Zoccali , G. Hajdu , J. Alonso-García , M. Catelan , W. Gieren , J. Borissova

We present a sample of Cepheid variable stars towards M31 based on the first year of regular M31 observations of the PS1 survey in the r_P1 and i_P1 filters. We describe the selection procedure for Cepheid variable stars from the overall…

We investigate the occurrence of classical (type-I) Cepheid variable stars (henceforth: Cepheids) in dynamically evolving star clusters from birth to an age of approximately 300 Myr. The clusters are modelled by the Aarseth code nbody6, and…

Astrophysics of Galaxies · Physics 2022-03-23 František Dinnbier , Richard I. Anderson , Pavel Kroupa

The ACS Nearby Galaxy Survey Treasury (ANGST) has acquired deep ACS imaging of a field in the outer disk of the large spiral galaxy M81. These data were obtained over a total of 20 HST orbits, providing a baseline long enough to reliably…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 Les P. McCommas , Peter Yoachim , Benjamin F. Williams , Julianne J. Dalcanton , Matthew R. Davis , Andrew E. Dolphin

Classical Cepheids provide valuable insights into the evolution of stellar multiplicity among intermediate-mass stars. Here, we present a systematic investigation of single-lined spectroscopic binaries (SB1) based on high-precision…

Solar and Stellar Astrophysics · Physics 2024-10-23 Shreeya S. Shetye , Giordano Viviani , Richard I. Anderson , Nami Mowlavi , Laurent Eyer , Nancy R. Evans , Laszlo Szabados

Classical and Type II Cepheids are used to reinvestigate specific properties of the Galaxy. A new Type II reddening-free Cepheid distance parameterization is formulated from LMC Cepheids (OGLE), with uncertainties typically no larger than…

Astrophysics of Galaxies · Physics 2014-11-18 Daniel J. Majaess , David G. Turner , David J. Lane

The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars. Using…

Solar and Stellar Astrophysics · Physics 2024-12-10 Xinyi Gao , Xiaodian Chen , Shu Wang , Jifeng Liu

We present the fifth part of the OGLE Catalog of Periodic Variable Stars in the Galactic bulge. 574 variable stars: 44 pulsating, 369 eclipsing and 161 miscellaneous type were detected in four fields located symmetrically in galactic…

Astrophysics · Physics 2007-05-23 A. Udalski , A. Olech , M. Szymanski , J. Kaluzny , M. Kubiak , M. Mateo , W. Krzeminski , K. Z. Stanek

We compared period changes derived from O-C diagrams for 63 classical Cepheids from our Galaxy with model calculations. We found that for Cepheids with log P > 1.0 the observed changes are smaller than predicted values, except variable SZ…

Astrophysics · Physics 2007-05-23 Pawel Pietrukowicz

The second data release of the Gaia mission includes an advance catalog of variable stars. The classification of these stars are based on sparse photometry from the first 22 months of the mission. We set out to investigate the purity and…

Solar and Stellar Astrophysics · Physics 2018-12-12 László Molnár , Emese Plachy , Áron L. Juhász , Lorenzo Rimoldini

From the Fourier analysis of the catalogue of ~200,000 variable candidates in the OGLE-II Galactic fields, we found a sample of about 230 short-period low-amplitude variable stars. From their position in the colour-magnitude diagram and the…

Astrophysics · Physics 2010-12-09 A. Narwid , Z. Kolaczkowski , A. Pigulski , T. Ramza
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