2002MNRAS.330...53K

Query : 2002MNRAS.330...53K

2002MNRAS.330...53K - Mon. Not. R. Astron. Soc., 330, 53-57 (2002/February-2)

V344 Lyr: an unusual large-amplitude SU UMa-type dwarf nova with a short supercycle.

KATO T., POYNER G. and KINNUNEN T.

Abstract (from CDS):

We studied the large-amplitude SU UMa-type dwarf nova V344 Lyr. A combination of our observations and reports from the Variable Star Network (VSNET) yields an extensive coverage of outbursts between 1994 July and 2001 June. The analysis of these data showed a mean supercycle length of 109.6d. This value is one of the smallest among known SU UMa-type dwarf novae (except unusual ER UMa-type dwarf novae). The outburst amplitude of V344 Lyr (∼5.5mag) is found to be much larger than those (3.5±0.3) of SU UMa-type dwarf novae with similar supercycle lengths. Such a deviation of the amplitude of V344 Lyr is difficult to explain using the inclination effect. The extreme outburst parameters of V344 Lyr would require an additional mechanism to effectively reduce the quiescent luminosity or to increase the outburst frequency.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): accretion, accretion discs - stars: dwarf novae - stars: individual: V344 Lyr - novae, cataclysmic variables

Simbad objects: 27

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Number of rows : 27
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* FO And CV* 01 15 32.1563820432 +37 37 35.565432888           ~ 61 0
2 V* WX Hyi CV* 02 09 50.8241651856 -63 18 39.831098040   10.70     13.038 ~ 206 0
3 V* VW Hyi CV* 04 09 11.3967378648 -71 17 41.554528260   12.786 12.543 14.160   DQ 661 0
4 V* V1159 Ori CV* 05 28 59.5676204544 -03 33 52.282939068   14.321 14.203 15.317   ~ 152 0
5 V* IR Gem CV* 06 47 34.6827027456 +28 06 22.332682152           ~ 147 0
6 V* Z Cha CV* 08 07 27.7517751528 -76 32 00.665029356           M5.5 620 1
7 V* YZ Cnc CV* 08 10 56.6511822192 +28 08 33.260657100     15.24     ~ 256 0
8 V* SU UMa CV* 08 12 28.2695986944 +62 36 22.427676396           B2 516 0
9 V* VZ Pyx CV* 08 59 19.8388698120 -24 28 55.257493908     14.08     ~ 69 0
10 V* DI UMa CV* 09 12 16.1933315112 +50 53 53.956934520           ~ 89 0
11 V* ER UMa CV* 09 47 11.9410111200 +51 54 08.950092804 14.351 14.03 13.91 14.909 14.629 ~ 161 0
12 V* RZ LMi CV* 09 51 48.9263549904 +34 07 23.966634108           DA 123 0
13 V* CI UMa CV* 10 18 12.9917560056 +71 55 43.290676632   19.1   19.4 14.42 ~ 47 0
14 V* SX LMi CV* 10 54 30.4187071632 +30 06 10.358155512   16.9   15.6   ~ 83 0
15 V* TT Boo CV* 14 57 44.7548342472 +40 43 40.691473248           ~ 77 0
16 V* NY Ser CV* 15 13 02.2954585632 +23 15 08.407860084   15.648 15.699     ~ 81 0
17 V* SS UMi CV* 15 51 22.3401322752 +71 45 11.834778240           ~ 77 0
18 V* IX Dra CV* 18 12 31.4711619792 +67 04 45.821734572           sdB 49 0
19 V* AY Lyr CV* 18 44 26.6868591696 +37 59 51.945309636   18.1   14.66   ~ 122 0
20 V* V344 Lyr CV* 18 44 39.1748179896 +43 22 28.051269960           sdB 114 0
21 V* V1113 Cyg CV* 19 22 41.9775560904 +52 43 59.237385492           ~ 34 0
22 V* V1504 Cyg CV* 19 28 56.4508657536 +43 05 37.081595940           ~ 122 0
23 V* RZ Sge CV* 20 03 18.47616 +17 02 51.9432   17.6   17.2   ~ 89 0
24 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20 10.817   D 982 0
25 V* V503 Cyg CV* 20 27 17.3992939944 +43 41 22.504607556           ~ 138 0
26 V* V630 Cyg CV* 21 34 59.1804081672 +40 40 18.517114524           ~ 31 0
27 V* TY PsA CV* 22 49 39.9054462120 -27 06 53.126335980   15.61 15.67 16.19   DA 105 0

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