2008PASP..120..301B


Query : 2008PASP..120..301B

2008PASP..120..301B - Publ. Astron. Soc. Pac., 120, 301-310 (2008/March-0)

The eclipsing cataclysmic variable Lanning 386: dwarf nova, SW Sextantis star, or both?

BRADY S., THORSTENSEN J.R., KOPPELMAN M.D., PRIETO J.L., GARNAVICH P.M., HIRSCHAUER A. and FLORACK M.

Abstract (from CDS):

We present photometry and spectroscopy of the suspected cataclysmic variable (CV) Lanning 386. We confirm that it is a CV, and observe deep eclipses, from which we determine the orbital period to be . Photometric monitoring over two observing seasons shows a very active system with frequent outbursts of variable amplitude, up to. The spectrum in quiescence is typical of dwarf novae, but in its high state the system shows strong He II emission and a broad C IV Wolf-Rayet feature. This is unusual for dwarf novae in outburst and indicates a high excitation. In its high state the system shows some features reminiscent of an SW Sextantis-type CV, but lacks others. We discuss the classification of this puzzling object.

Abstract Copyright: ∼

Journal keyword(s): Stars

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 - 2026
#notes
1 Lan 159 CV* 01 55 10.4451647688 +69 42 40.269872016 16.7 17.4 17.26 17.1 17.3 DA5.5 13 0
2 Lan 302 CV* 03 32 07.0 +54 36 09           ~ 3 0
3 V* V363 Aur CV* 05 33 33.4591265880 +36 59 32.475580692     14.2     K0V 107 0
4 V* SW Sex CV* 10 15 09.3769935988 -03 08 32.850732738           ~ 223 0
5 V* EX Hya CV* 12 52 24.2222471899 -29 14 55.999766523   13.505 13.491 13.549   M5-6V 730 0
6 V* DQ Her CV* 18 07 30.2510391864 +45 51 32.564791872   14.605 14.443 14.800   M3+Ve 1048 1
7 Lan 17 CV* 18 23 00.39 -04 37 09.6   20 20     ~ 3 0
8 V* V1776 Cyg CV* 20 23 30.5190973512 +46 31 29.438367528   17.2       ~ 37 0
9 Lan 386 CV* 21 08 33.9690140068 +39 05 35.239208092   15.8       ~ 15 0
10 Lan 420 CV* 22 02 43.0902981724 +59 03 20.593522155   17.2       ~ 10 0

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