Results 11 to 20 of about 2,498,592 (293)

Pulsating stars in the VMC survey [PDF]

EPJ Web of Conferences, 2017
The VISTA survey of the Magellanic Clouds system (VMC) began observations in 2009 and since then, it has collected multi-epoch data at Ks and in addition multi-band data in Y and J for a wide range of stellar populations across the Magellanic system ...
Cioni Maria-Rosa L., Ripepi Vincenzo, Clementini Gisella, Groenewegen Martin A.T., Moretti Maria I., Muraveva Tatiana, Subramanian Smitha   +6 more
doaj   +3 more sources

Classification of Periodic Variable Stars from TESS

The Astrophysical Journal Supplement Series
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.
Xinyi Gao, Xiaodian Chen, Shu Wang, Jifeng Liu   +3 more
doaj   +2 more sources

Pulsating variable stars as tracers of galactic structure and interaction mechanisms [PDF]

, 2012
My PhD project has been focused on the study of the pulsating variable stars in two ultra-faint dwarf spheroidal satellites of the Milky Way, namely, Leo IV and Hercules; and in two fields of the Large Magellanic Cloud (namely, the Gaia South Ecliptic Pole calibration field, and the 30 Doradus region) that were repeatedly observed in the KS band by ...
Moretti, Maria Ida <1982>
openaire   +3 more sources

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

Monthly Notices of the Royal Astronomical Society, 2018
11 pages, 4 tables, 7 figures, accepted for publication in ...
Hubrig, S., Järvinen, S. P., Madej, Jerzy, Bychkov, V. D., Ilyin, I., Schöller, M., Bychkova, L. V.   +6 more
openaire   +3 more sources

The pulsating variable star population in DDO210 [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We have probed the pulsating variable star content of the isolated Local Group dwarf galaxy, DDO210 (Aquarius), using archival Advanced Camera for Surveys/$Hubble$ $Space$ $Telescope$ imaging in the F475W and F814W passbands. We find a total of 32 RR Lyrae stars (24 ab-type, 8 c-type) and 75 Cepheid variables. The mean periods of the ab-type and c-type
Ordoñez, Antonio J., Sarajedini, Ata
openaire   +2 more sources

FX UMa: A New Heartbeat Binary System with Linear and Nonlinear Tidal Oscillations and δ Sct Pulsations

The Astronomical Journal, 2023
We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the SONG high ...
Kun Wang, Anbing Ren, Mads Fredslund Andersen, Frank Grundahl, Tao Chen, Pere L. Pallé   +5 more
doaj   +1 more source

Variable Stars [PDF]

, 2021
تتطرق هذه المقالة إلى أجرام سماوية شهيرة جداً في علم فيزياء الفلك تدعى بالنجوم المتغيرة (variable stars). تتضمن مجموعة النجوم المتغيرة فيزيائيا نوعين رئيسيين وهما نجوم متغيرة بانتظام ونجوم غير متغيرة بانتظام.
معلا, محمد
core   +1 more source

New periodic variable stars coincident with ROSAT sources discovered using SuperWASP [PDF]

, 2007
We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously recognised as periodic variables.
West, Richard G., Pollacco, Don, M. Gallaway, Street, R. A., Horne, K. (Keith), Kane, S. R., Christian, Damian Joseph, D. J. Christian (7603835), Hellier, Coel, Enoch, B., Nicholas, J. P., D. Pollacco (7603205), Irwin, J., Skillen, I., B. Enoch (7603838), West, R. G., R. A. Street, D. J. Christian, T. A. Lister (7603856), Irwin, Jonathan, K. Horne, Ryans, R., C. A. Haswell, D. M. Wilson (2428792), Wilson, D. M., Christian, D. J., J. P. Nicholas (7614728), S. R. Kane (7603853), S. R. Kane, Haswell, C. A., J. P. Nicholas, B. Enoch, C. Hellier (7603562), Norton, A. J., W. I. Clarkson, R. G. West, Lister, T. A., W. I. Clarkson (7612619), West, R .G., J. Irwin, Gallaway, M., T. A. Lister, Collier Cameron A (7614731), Pollacco, D., Parley, N., K. Horne (7603850), R. Ryans, C. A. Haswell (7603844), P. J. Wheatley (7590065), Hellier, C., Norton, Andrew J., R. Ryans (7612838), N. Parley, D. M. Wilson, Parley, N. R., I. Skillen (7601975), A. J. Norton (7603859), Horne, Keith Douglas, Horne, K. D., I. Skillen, R. G. West (7602272), A. Collier Cameron, J. Irwin (7606340), P. J. Wheatley, C. Hellier, R. A. Street (7603868), M. Gallaway (7614725), N. Parley (7603862), Cameron, Andrew Collier, Collier Cameron, A., Clarkson, W. I., Kane, Sharad R., Wheatley, P. J., A. J. Norton, Wilson, D. M. (David M.), D. Pollacco   +75 more
core   +1 more source

Pulsating star research and the Gaia revolution

EPJ Web of Conferences, 2017
In this article we present an overview of the ESA Gaia mission and of the unprecedented impact that Gaia will have on the field of variable star research.
Eyer Laurent, Clementini Gisella, Guy Leanne P., Rimoldini Lorenzo, Glass Florian, Audard Marc, Holl Berry, Charnas Jonathan, Cuypers Jan, Ridder Joris De, Evans Dafydd W., de Fombelle Gregory Jevardat, Lanzafame Alessandro, Lecoeur-Taibi Isabelle, Mowlavi Nami, Nienartowicz Krzysztof, Riello Marco, Ripepi Vincenzo, Sarro Luis, Süveges Maria   +19 more
doaj   +1 more source

The impact of large-scale, long-term optical surveys on pulsating star research

EPJ Web of Conferences, 2017
The era of large-scale photometric variability surveys began a quarter of a century ago, when three microlensing projects - EROS, MACHO, and OGLE - started their operation.
Soszyński Igor
doaj   +1 more source