Superhumps and flickering in V1316 Cygni
| dc.creator | Boyd, David | |
| dc.creator | Lloyd, Christopher | |
| dc.creator | Koff, Robert | |
| dc.creator | Krajci, Thomas | |
| dc.creator | Staels, Bart | |
| dc.creator | Foote, Jerrold | |
| dc.creator | Goff, William | |
| dc.creator | Vanmunster, Tonny | |
| dc.creator | Cook, Lewis | |
| dc.creator | Patterson, Joseph | |
| dc.date | 2007-10-08 | |
| dc.date.accessioned | 2026-07-07T09:54:04Z | |
| dc.date.available | 2026-07-07T09:54:04Z | |
| dc.description | We present analysis and results of a coordinated CCD photometry campaign to observe the 2006 June superoutburst of the cataclysmic variable V1316 Cyg involving 8 longitudinally-distributed observers. The outburst peaked at magnitude 15.03 on June 10, declined at a rate of 0.14 mag/day, lasted 11 days and had an amplitude above quiescence of 2.4 magnitudes. We detected common superhumps for the first time, thereby confirming that V1316 Cyg is a member of the UGSU class of dwarf novae. We observed a transition to late superhumps two-thirds of the way through the outburst with an associated phase shift of 0.50 +/- 0.06 cycles. The mean common superhump period before this transition was 0.07685 +/- 0.00003 d and the mean late superhump period following the transition was 0.07654 +/- 0.00002 d. The common superhump period decreased at a rate dP/dt = -5.1 +/- 1.7 x10^-5 /cycle. At the onset of late superhumps, there was a transient shift in power from the superhump fundamental frequency to its first harmonic and back again. We detected an orbital period of 0.0740 +/- 0.0002 d giving a fractional superhump period excess of 0.038 +/- 0.003 and a mass ratio of 0.167 +/- 0.010. A scalegram analysis of the flickering behaviour of V1316 Cyg found that the alpha and sigma parameters characterising flickering changed significantly during the superoutburst. We also found flickering to be at a relatively much lower level at the beginning of the superoutburst and during two normal outbursts. | |
| dc.description | Accepted for publication in the Journal of the British Astronomical Association, 18 pages, 12 figures | |
| dc.identifier | https://arxiv.org/abs/0710.1653 | |
| dc.identifier | http://arxiv.org/abs/0710.1653 | |
| dc.identifier | J.Br.Astron.Assoc. 118 (2008) 149-156 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/166180 | |
| dc.subject | Astrophysics | |
| dc.title | Superhumps and flickering in V1316 Cygni | |
| dc.type | text |