2021RNAAS...5..188B

Query : 2021RNAAS...5..188B

2021RNAAS...5..188B - Research Notes of the AAS, 5, 188 (2021/August-0)

Orbital Periods and Waveforms of Dwarf Novae Observed by Kepler.

BRUCH A.

Abstract (from CDS):

Kepler high cadence data are used to measure the orbital periods and to determine the orbital waveforms of five dwarf novae. A significant improvement of the period of V1504 Cyg is achieved, while for the other systems periods are derived which are compatible with previous determinations. The orbital waveforms of the short period systems V1504 Cyg, V344 Lyr and V516 Lyr are very nearly sinusoidal, while the longer period dwarf nova V447 Lyr appears almost to be a twin of U Gem. The unusual system KIC 9202990 exhibits distinct variations of its waveform as a function of brightness during its outburst cycle.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Close binary stars - Variable stars - Cataclysmic variable stars - Dwarf novae

Simbad objects: 7

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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* U Gem CV* 07 55 05.2324414746 +22 00 05.044127985   15.3 14.54     DA 1135 0
2 V* V344 Lyr CV* 18 44 39.1748179896 +43 22 28.051269960           sdB 114 0
3 ATO J284.0336+45.6277 CV* 18 56 08.0688168336 +45 37 40.144446012           ~ 20 0
4 V* V447 Lyr CV* 19 00 19.91 +44 27 45.0           ~ 24 0
5 V* V516 Lyr CV* 19 20 35.7418540680 +37 44 52.043756748 19.92 21.07       ~ 35 0
6 V* V1504 Cyg CV* 19 28 56.4508657536 +43 05 37.081595940           ~ 122 0
7 V* V516 Cyg CV* 20 47 09.7892680488 +41 55 26.482298232     14.20     ~ 33 0

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