2001A&A...374..588S


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.22CEST06:45:57

2001A&A...374..588S - Astronomy and Astrophysics, volume 374, 588-598 (2001/8-1)

System parameters of the long-period polar V1309 Ori.

STAUDE A., SCHWOPE A.D. and SCHWARZ R.

Abstract (from CDS):

Based on high-resolution optical spectroscopy in the blue and the near infra-red spectral range, we derived velocity images (Doppler tomograms) of the mass-donating secondary star and the accretion stream of the long-period eclipsing polar 13 (RX J0515.41+0104.6). Combined with HST-spectroscopy of high time resolution and optical photometry we were able to derive the main system parameters and to determine the accretion geometry of the binary. The length of the eclipse of the white dwarf is Δtecl=2418±60s, the mass ratio Q=1.37-1.63, and the orbital inclination i=76.6°-78.9°. The surface of the secondary star could be resolved in the Doppler image of NaI absorption lines, where it shows a marked depletion on the X-ray irradiated side. The accretion geometry proposed by us with a nearly aligned rotator, co-latitude δ≃10°, tilted away from the ballistic stream, azimuth χ≃-35°, explains the shape of the emission-line Doppler tomograms and the shape of optical/UV eclipse light curves.

Abstract Copyright:

Journal keyword(s): accretion - stars: binaries: eclipsing - stars: individual: V1309 Ori - stars: magnetic fields - stars: novae - cataclysmic variables

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* UZ For AM* 03 35 28.6515678221 -25 44 21.765602833           M4.5 246 0
2 V* V1309 Ori AM* 05 15 41.4123841919 +01 04 40.479107028           M0.5 99 0
3 V* YY Gem BY* 07 34 37.4475372002 +31 52 10.181030942 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 820 0
4 V* QQ Vul AM* 20 05 41.9088490597 +22 39 58.839371205   14.4       M2 191 0
5 V* HU Aqr AM* 21 07 58.1945403160 -05 17 40.557984218   15.1   15.4   D+M4V 256 1

    Equat.    Gal    SGal    Ecl

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2020.10.22-06:45:57

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