A new two-pole accretion polar: RX J1846.9+5538
نویسندگان
چکیده
منابع مشابه
A new two - pole accretion polar : RX J 1846 . 9 + 5538 ?
We report the discovery of a new, bright (V ∼ 17) AM Her system as the optical counterpart of the soft ROSAT All-Sky-Survey source RXJ1846.9+5538 (= 1RXS J184659.4+553834). Optical photometric and spectroscopic follow-up observations reveal a single period of 128.7 min, consistent with a high degree of spin-orbit synchronization, and a low polar field strength (B < 20 MG) of the primary accreti...
متن کاملRX J 0719 . 2 + 6557 : a new eclipsing polar
A newmagnetic cataclysmic variable is identified as the counterpart of the X-ray source RX J0719.2+6557 which has been discovered during the ROSAT all-sky survey. Optical spectroscopy of the ≈ 17m object revealed a pattern of Balmer and strongHe II emission lineswhich are characteristic for cataclysmic variables. The emission lines show radial velocity variations with a period of 98.2 min with ...
متن کاملRx J0744{52: a Probable New Intermediate Polar
We present optical and X-ray data of the Cataclysmic Variable RX0744{52 discovered using ROSAT by Motch et al. High resolution spectroscopy centred on the H line indicates a probable orbital period of 3.60 hrs. From its distance (obtained using polarimetry), its X-ray luminosity, its X-ray colour and its X-ray/UV+Opt ratio, we suggest that RX0744{52 is an new Intermediate Polar. The absence of ...
متن کاملRX J 2133 . 7 + 5107 : Identification of a new long period Intermediate Polar ⋆ ⋆ ⋆
We report the first time-resolved photometric and spectroscopic optical observations of the X-ray source RX J2133.7+5107, identified in the ROSAT survey. A clear persistent optical light pulsation is discovered with fast photometry at a period of P ω =(570.823±0.013) s which we associate with the spin period of an accreting white dwarf. Radial velocity curves of the strong emission lines show m...
متن کاملA new ROSAT discovered polar near the lower period limit: RX J1015.5+0904 in Leonis
We have identified the bright, soft, X-ray source RX J1015.6+0904 detected during the ROSAT All-Sky Survey with a newAMHerculis binary (polar). Its soft X-ray light curve is typical for a system with a one-pole accretion geometry and shows a bright phase lasting about 0.75 of the binary orbit with ROSAT PSPC countrates of up to 10 cts/s. The bright phase is interrupted by a 3min long dip with z...
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: 2002
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20021193