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The new AM CVn star in Hydra | | Patrick A. Woudt
; Brian Warner
; | | Date: |
28 Jul 2003 | | Journal: | Mon.Not.Roy.Astron.Soc. 345 (2003) 1266 | | Subject: | astro-ph | | Affiliation: | Univ. of Cape Town) and Brian Warner (Univ. of Cape Town | | Abstract: | High speed photometry of the new AM CVn star in Hya (previously known as SN2003aw), spectroscopically identified by Chornock & Filippenko, shows it to have a superhump period of 2041.5 +/- 0.3 s. We find a range of brightness from V ~ 16.5 to 20.3, presumably caused by variations in the rate of mass transfer. In the intermediate state the system cycles in brightness with a period of ~ 16 h and range >= 0.4 mag. There are sidebands to the principal frequencies in the Fourier transform which have constant frequency difference from the superhump harmonics. | | Source: | arXiv, astro-ph/0307473 | | Services: | Forum | Review | PDF | Favorites | |
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