2004A&A...424..647R


Query : 2004A&A...424..647R

2004A&A...424..647R - Astronomy and Astrophysics, volume 424, 647-655 (2004/9-3)

Time-resolved photometry and spectroscopy of the new deeply-eclipsing SW Sextantis star HS 0728+6738.

RODRIGUEZ-GIL P., GAENSICKE B.T., BARWIG H., HAGEN H.-J. and ENGELS D.

Abstract (from CDS):

We present time-resolved optical spectroscopy and photometry, and far-ultraviolet spectroscopy of HS 0728+6738, a cataclysmic variable discovered in the Hamburg Quasar Survey. We show that the system is a new eclipsing member of the SW Sex class of CVs with an orbital period of 3.21h. We derive an orbital inclination of ∼85±4° from the average eclipse profile, making HS 0728+6738 the highest inclination SW Sex star known. The optical and far-ultraviolet emission lines are not or only weakly occulted during the eclipse, indicating the presence of line-emission sites either far outside the Roche lobe of the primary or, more likely, above the orbital plane of the binary. The photometric light curves exhibit fast variability with a period of ∼7min, which might be related to the spin of the white dwarf.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - stars: binaries: close - stars: individual: HS 0728+6738 - stars: novae, cataclysmic variables

Simbad objects: 10

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Number of rows : 10
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 V* RW Tri CV* 02 25 36.1556820000 +28 05 50.891220600   13.50 12.50     M0V 293 0
2 V* BT Mon No* 06 43 47.2416090432 -02 01 13.876883184   15.737 14.638 15.411   G8V 165 0
3 V* V348 Pup CV* 07 12 32.9097229704 -36 05 38.582602080   15.82 15.72 16.00 15.06 B0V 80 0
4 V* V482 Cam EB* 07 33 41.4126954912 +67 32 15.629343864           ~ 13 0
5 PG 0818+513 CV* 08 22 36.0475955184 +51 05 24.558779364   15.73       ~ 98 0
6 V* SW Sex CV* 10 15 09.3769935988 -03 08 32.850732738           ~ 187 0
7 V* DW UMa CV* 10 33 52.8751411128 +58 46 54.717259044   14.33   14.33 14.35 ~ 220 0
8 V* LX Ser CV* 15 38 00.0938074584 +18 52 03.244681812     15.06     G8V 137 0
9 V* V1315 Aql CV* 19 13 54.5308677240 +12 18 03.239745228   14.81 14.33 14.33   ~ 120 0
10 V* LZ Aqr LXB 21 23 14.54 -05 47 52.9 15.90 16.78 16.8     ~ 144 0

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2022.05.22-01:35:56

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