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


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.16CEST23:09:27

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 - 2019
#notes
1 V* RW Tri NL* 02 25 36.1555561414 +28 05 50.893091344   13.50 12.50     M0V 284 0
2 V* BT Mon No* 06 43 47.2416393083 -02 01 13.877487108   4.50 15.4     G8V 154 0
3 V* V348 Pup DQ* 07 12 32.9098616258 -36 05 38.581905875   15.82 15.72 16.00 15.06 B0V 75 0
4 V* V482 Cam Al* 07 33 41.4125399360 +67 32 15.629885096           ~ 12 0
5 PG 0818+513 CV* 08 22 36.0477126559 +51 05 24.558776170   15.73       ~ 96 0
6 V* SW Sex NL* 10 15 09.3650789592 -03 08 32.962346997           ~ 179 0
7 V* DW UMa CV* 10 33 52.8751166936 +58 46 54.719916520   14.33   14.33 14.35 ~ 212 0
8 V* LX Ser NL* 15 38 00.0940371086 +18 52 03.246645222     15.06     G8V 130 0
9 V* V1315 Aql NL* 19 13 54.5309857214 +12 18 03.237989331   14.81 14.33 14.33   ~ 114 0
10 V* LZ Aqr LXB 21 23 14.54 -05 47 52.9 15.90 16.78 16.8     ~ 139 0

    Equat.    Gal    SGal    Ecl

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2019.10.16-23:09:27

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