2007IBVS.5763....1G

Query : 2007IBVS.5763....1G

2007IBVS.5763....1G - IAU Inform. Bull. Var. Stars, 5763, 1-6 (2007/April-0)

SDSS J102146.44+234926.3: new WZ sge-type dwarf nova.

GOLOVIN A., AYANI K., PAVLENKO E.P., KRAJCI T., KUZNYETSOVA Y., HENDEN A., KRUSHEVSKA V., DVORAK S., SOKOLOVSKY K., SERGEEVA T.P., JAMES R., CRAWFORD T. and CORP L.

Abstract (from CDS):

We report CCD photometry and spectroscopy during 2006 outburst of the dwarf nova SDSS J102146.44+234926.3 (SDSS J1021). The photographic plates from the MAO, SAI and CrAO plate archives, which cover the position of the SDSS J1021, were inspected for the presence of previous outbursts. We also present the BVRcIc photometric calibration of 52 stars in SDSS J1021 vicinity, which have V-magnitude in the range of 11.21-17.23m and can serve as comparison stars. The large amplitude of the SDSS J1021 outburst of 7m, superhumps with a period below the ''period gap'', rebrightening during the declining stage of superoutburst, rarity of outbursts and obtained spectrum allow to classify this object as a WZ Sge type dwarf nova.

Abstract Copyright: ∼

Journal keyword(s): Stars: individual: SDSS J102146.44+234926.3, stars: dwarf novae, stars: cataclysmic variables, stars: accretion, accretion discs, stars: spiral waves, stars: superhumps, double-humped, stars: echo outbursts, rebrightenings, methods: O-C, methods: periodogram, techniques: photometric, techniques: spectroscopic, techniques: photographic plates

Simbad objects: 7

View the references in ADS

Number of rows : 7

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* FL Psc	CV*	00 25 11.1124543656	+12 17 12.384853512		16.6	16.78			DC	65	0
2	V* V572 And	CV*	02 22 16.40	+41 22 59.9						~	16	0
3	V* SU UMa	CV*	08 12 28.2695986944	+62 36 22.427676396						B2	516	0
4	V* EG Cnc	CV*	08 43 03.9863206560	+27 51 49.693595508						DAe	195	0
5	* eta Hya	bC*	08 43 13.4757536071	+03 23 55.182801587	3.380	4.100	4.300	4.37	4.56	B3V	418	1
6	V* IK Leo	CV*	10 21 46.4464048920	+23 49 26.352084288		20.57				~	23	0
7	V* AL Com	CV*	12 32 25.7951754648	+14 20 42.292188276			16.2			~	249	0

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