AM CVn stars in the UCT CCD CV survey
| dc.creator | Woudt, Patrick A. | |
| dc.creator | Warner, Brian | |
| dc.date | 2003-10-17 | |
| dc.date.accessioned | 2026-07-07T02:10:35Z | |
| dc.date.available | 2026-07-07T02:10:35Z | |
| dc.description | High speed photometry of the helium-transferring binary ES Cet - taken over a two-year period (2001 October - 2003 October) - shows a very stable photometric period of 620.211437 +/- 0.000038 s, with a tentative indication of curvature in the O-C diagram suggesting a change in period at a rate of dP/dt ~ 1.6x10^-11. Phase-resolved spectroscopy of ES Cet obtained with the Hobby-Eberly Telescope shows a clear modulation on the photometric period. We have followed a newly identified AM CVn star (`2003aw') photometrically through its 2003 February/March outburst during which it varied in brightness over a range of V = 16.5 - 20.3; we find a superhump period of 2041.5 +/- 0.3 s. Questions are raised about the reality of the detected spin-up in RX J0806 (Hakala et al. 2003; Strohmayer 2003). | |
| dc.description | 8 pages, 4 figures (requires kapproc.cls). To appear in the proceedings of IAU JD5, `White Dwarfs: Galactic and Cosmological Probes', eds. Ed Sion, Stephane Vennes and Harry Shipman | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0310494 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0310494 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/6780 | |
| dc.subject | Astrophysics | |
| dc.title | AM CVn stars in the UCT CCD CV survey | |
| dc.type | text |