New periodic variable stars coincident withROSATsources discovered using SuperWASP
نویسندگان
چکیده
منابع مشابه
SuperWASP Lightcurves of Subdwarf Stars
SuperWASP is a wide angle survey for transiting hot-Jupiter exoplanets around bright (V<13) solar-type stars. Lightcurves for millions of stars with a few thousand observations per star are available in the SuperWASP archive. We report the results of a search for periodic variable subdwarf stars in the data from the 2004 observing season. A Fourier transform of the SuperWASP lightcurve for Ball...
متن کاملLINEAR PULSATION CHARACTERISTICS OF MIRA VARIABLE STARS
The linear adiabatic pulsation-periods of Mira variable stars have been derived. Approximately 2701[1]models were calculated for M = 0.7 MΘ to 2 MΘ stars with radii from 180 RΘ to 340 RΘ and luminosities from 2800 LΘ to 10,000 LΘ. The chemical composition of all models is (X,Z) = (0.7,0.02). From the result of this study, linear relations on Luminosity-Period-Mass relationship and luminosity-pe...
متن کاملFinding outlier light-curves in catalogs of periodic variable stars
We present a methodology to discover outliers in catalogs of periodic light-curves. We use cross-correlation as measure of “similarity” between two individual light-curves and then classify light-curves with lowest average “similarity” as outliers. We performed the analysis on catalogs of variable stars of known type from the MACHO and OGLE projects and established that our method correctly ide...
متن کاملNew binary stars discovered by lunar occultations . V ?
We present recent results from our ongoing lunar occultation program on binary stars at the TIRGO and Calar Alto observatories. Observations are presented here for a total of seventeen sources, the majority of which are resolved for the first time. These include SAO 94621, IRAS 18154-1900, SAO 98345, SAO 98363, SAO 93947, SAO 97319, SAO 97437, SAO 94986, SAO 94488, DO 11742, SAO 78027 and SAO 7...
متن کاملNew binary stars discovered by lunar occultations. IV
We report on a total of 20 sources observed in the near infrared in the course of routine lunar occultation programs at the TIRGO and Calar Alto observatories. The results consist either in discoveries of new binaries, or in re–observations of known or suspected binaries where only incomplete information was previously available. For the first time, a companion has been detected around the foll...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20077084