2000A&A...353..646T


Query : 2000A&A...353..646T

2000A&A...353..646T - Astronomy and Astrophysics, volume 353, 646-654 (2000/1-2)

RX J1313.2-3259, a long-period polar discovered with ROSAT.

THOMAS H.-C., BEUERMANN K., BURWITZ V., REINSCH K. and SCHWOPE A.D.

Abstract (from CDS):

We report observations of a new AM Herculis binary identified as the optical counterpart of the X-ray source RX J1313.2-3259, detected during the ROSAT All-Sky Survey (RASS). It has an orbital period of 251 min and is strongly modulated at optical wavelengths. The long-term behavior is characterized by a pronounced variation in X-rays between the RASS and two subsequent pointings (decrease by a factor 40 in count rate) and by moderate changes in the optical brightness (up to a factor 5). The X-ray spectrum is dominated by a soft quasi-blackbody component, with a smaller contribution from thermal bremsstrahlung. Measurements of high circular polarization confirm its classification as a Polar with a magnetic field strength of 56 MG. The average visual magnitude of RX J1313.2-3259 is V≃16m, for its distance we get ≃200pc.

Abstract Copyright:

Journal keyword(s): stars: novae, cataclysmic variables - stars: magnetic fields - stars: individual: RX J1313.2-3259 - stars: binaries: close - X-rays: stars - accretion, accretion disks

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 36395 PM* 05 31 27.3957852161 -03 40 38.024004501 10.626 9.443 7.968 6.996 5.913 M1.5Ve 472 0
2 V* V371 Ori Er* 05 33 44.8000263360 +01 56 43.452872340 13.956 12.51 11.499 10.382 9.072 M3.0V 146 0
3 Ross 440 ** 09 31 19.41603 -13 29 18.9355 12.734 11.568 10.067 9.000 7.682 M3V 139 0
4 V* V1043 Cen CV* 13 13 17.1147127536 -32 59 12.443490960           ~ 34 0

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2022.05.24-08:19:21

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