2012MNRAS.422..731S

Query : 2012MNRAS.422..731S

2012MNRAS.422..731S - Mon. Not. R. Astron. Soc., 422, 731-737 (2012/May-1)

Discovery of Hα satellite emission in a low state of the SW Sextantis star BB Doradus.

SCHMIDTOBREICK L., RODRIGUEZ-GIL P., LONG K.S., GANSICKE B.T., TAPPERT C. and TORRES M.A.P.

Abstract (from CDS):

BB Dor was observed during its low state in 2009. Signatures of both binary components are revealed in the average optical spectrum; no signature of accretion is observed. Narrow emission lines of Hα, He I and Na D, as well as TiO absorption troughs, trace the motion of the irradiated secondary star. We detect two additional components in the Hα emission line that share many characteristics of similar `satellite' lines observed in the low state of magnetic cataclysmic variables of AM Her type. It is the first time such emission components are detected for an SW Sex star.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): accretion, accretion discs - magnetic fields - stars: activity - stars: individual: BB Dor - novae, cataclysmic variables - stars: winds, outflows

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 V* BL Hyi CV* 01 41 00.3996430344 -67 53 27.470100660       15.340   DC: 221 0
2 V* TT Ari CV* 02 06 53.0797508832 +15 17 41.851038804   10.73 10.20     Bep: 459 0
3 V* V471 Tau SB* 03 50 24.9666549840 +17 14 47.430910716   10.258 9.373   8.393 K2V+DA 697 0
4 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 1080 0
5 V* BB Dor CV* 05 29 28.5849988224 -58 54 46.184462928 13.68 15.57 15.52 14.83   ~ 53 0
6 V* XY UMa RS* 09 09 55.9354759992 +54 29 17.724193872       9.620   G5 262 0
7 V* DW UMa CV* 10 33 52.8751411128 +58 46 54.717259044   14.33   14.33 14.35 ~ 254 0
8 V* AM Her CV* 18 16 13.2546725104 +49 52 04.759613537   15.124 14.808 13.525   M4.5-5Ve 1009 2
9 V* MV Lyr CV* 19 07 16.2886463256 +44 01 07.869892008   13.040 12.920 12.489 12.578 M5Ve 307 0
10 V* BO Mic BY* 20 47 45.0056152368 -36 35 40.769832192   10.39 9.337   8.216 K3V(e) 214 0

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