Telescope observations of magnetic cataclysmic variables : possibilities for the presence of dust in polars
نویسنده
چکیده
We present Spitzer Space Telescope photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer Infrared Array Camera (3.6–8.0 μm) data with the 2MASS JHKs photometry to construct the spectral energy distributions of these systems from the nearto mid-IR (1.235–8 μm). We find that five out of the six polars have
منابع مشابه
Spitzer Space Telescope Observations of Magnetic Cataclysmic Variables: Possibilities for the Presence of Dust in Polars
We present Spitzer photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer IRAC (3.6Y8.0 m) data with the 2MASS JHKs photometry to construct the SEDs of these systems from the nearto mid-IR (1.235Y8 m). We find that five out of the six polars have flux densities in the mid-IR that are substantially in excess of the values expec...
متن کاملar X iv : a st ro - p h / 04 12 18 0 v 1 8 D ec 2 00 4 Far - ultraviolet Spectroscopy of Magnetic Cataclysmic Variables
We have obtained HST/STIS data for a total of eleven polars as part of a program aimed to compile a homogeneous database of high-quality far-ultraviolet (FUV) spectra for a large number of cataclysmic variables (CVs). Of the eleven polars, eight were found in a state of low accretion activity (V347Pav, VVPup, V834Cen, BLHyi, MRSer, STLMi, RXJ1554.2+2721 and V895Cen) and three in a state of high...
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We have obtained HST/STIS data for a total of eleven polars as part of a program aimed to compile a homogeneous database of high-quality far-ultraviolet (FUV) spectra for a large number of cataclysmic variables (CVs). Of the eleven polars, eight were found in a state of low accretion activity (V347Pav, VVPup, V834Cen, BLHyi, MRSer, STLMi, RXJ1554.2+2721 and V895Cen) and three in a state of high...
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