1999A&A...348..364M

Query : 1999A&A...348..364M

1999A&A...348..364M - Astronomy and Astrophysics, volume 348, 364-370 (1999/8-2)

On the linewidth/K vs. mass ratio relation for SU Ursae Majoris stars and the removal of the inner disk.

MENNICKENT R.E.

Abstract (from CDS):

We have calibrated the linewidth/K vs. mass ratio relation for SU UMa stars using the ``superhump'' mass ratio derived from the tidal resonance model. We find that the relation by Jurcevic et al. (1994PASP..106..481J) is valid for dwarf novae above the period gap but not for SU UMa stars. Under the hypothesis of Keplerian disks, our results are compatible with the removal of the inner disk in SU UMa stars with extreme cycle lengths. The large long-term FWHM variability observed in WZ Sge suggests that the fraction of mass removed from the disk is variable and possibly a function of the supercycle phase. We show a new empirical formula between mass ratio and FWHM/K. It fits the mass ratio of dwarf novae above and below the period gap with a mean relative dispersion of 16% and 26%, respectively, except for the post-period minimum candidates EG Cnc and WZ Sge.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion disks - methods: statistical - stars: binaries: general - stars: evolution - stars: novae, cataclysmic variables

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* HT Cas CV* 01 10 13.1213394144 +60 04 35.489642700     14.10     M5.5e 388 0
2 V* WX Cet CV* 01 17 04.1794193856 -17 56 22.414606224           ~ 169 0
3 V* UV Per CV* 02 10 08.2720508904 +57 11 20.863265892           ~ 114 0
4 V* TU Men CV* 04 41 40.7061732720 -76 36 45.942303384         14.057 ~ 154 0
5 V* AQ Eri CV* 05 06 13.1058945528 -04 08 07.253107476           ~ 83 0
6 V* CZ Ori CV* 06 16 43.2247568736 +15 24 11.297210616   12.81 12.81 16.17   OB- 96 0
7 V* U Gem CV* 07 55 05.2323858391 +22 00 05.045435077   15.3 14.54     DA 1100 0
8 V* Z Cha CV* 08 07 27.7517751528 -76 32 00.665029356           M5.5 605 1
9 V* SU UMa CV* 08 12 28.2695986944 +62 36 22.427676396           B2 496 0
10 V* EG Cnc CV* 08 43 03.9863206560 +27 51 49.693595508           DAe 180 0
11 V* AK Cnc CV* 08 55 21.1855841064 +11 18 15.072556860           B8III 64 0
12 V* CU Vel CV* 08 58 33.0342318672 -41 47 51.733120236           ~ 105 0
13 V* OY Car CV* 10 06 22.0793274312 -70 14 04.584660540           ~ 569 0
14 V* SX LMi CV* 10 54 30.4187071632 +30 06 10.358155512   16.9   15.6   ~ 75 0
15 V* CY UMa CV* 10 56 56.9964835104 +49 41 18.201049512   17.0       ~ 104 1
16 V* HS Vir CV* 13 43 38.4377401320 -08 14 03.882750324           ~ 59 0
17 V* EK TrA CV* 15 14 01.3761801610 -65 05 32.305864520           ~ 126 0
18 V* BR Lup CV* 15 35 53.1481874160 -40 34 06.076666416           ~ 49 0
19 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20     DAepv 946 0
20 V* VY Aqr CV* 21 12 09.2515505688 -08 49 36.779664432           ~ 222 0
21 V* TY PsA CV* 22 49 39.9054462120 -27 06 53.126335980   15.61 15.67 16.19   DA 100 0
22 V* IP Peg CV* 23 23 08.5362249504 +18 24 59.206884012           M2 381 0

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