SDSS J162718.39+120435.0 - a dwarf nova in the period gap

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dc.creatorShears, Jeremy
dc.creatorBrady, Steve
dc.creatorGaensicke, Boris
dc.creatorKrajci, Tom
dc.creatorMiller, Ian
dc.creatorOgmen, Yenal
dc.creatorPietz, Jochen
dc.creatorStaels, Bart
dc.date2008-12-06
dc.date.accessioned2026-07-07T12:10:03Z
dc.date.available2026-07-07T12:10:03Z
dc.descriptionSDSS J162718.39+120435.0 was suspected of being a dwarf nova from spectroscopic observations made available by the Sloan Digital Sky Survey. Photometry conducted during the 2008 outburst, the first ever outburst of this object detected and followed up in real time, shows that the outburst reached magnitude 14.6 at maximum, had an amplitude of 4.6 magnitudes and lasted for at least 18 days. Common superhumps were detected with an amplitude of up to 0.4 magnitudes, confirming it to be a member of the SU UMa family. Initially the superhump period, Psh, was 0.10993(7) days (2.638 hours), but it subsequently reduced to Psh = 0.10890(9) days (2.614 hours) later in the outburst. The period change corresponds to the end of the plateau period of the outburst. The orbital period, Porb, was estimated from the two Psh values as between 0.1026 d and 0.1016 d, which places SDSS1627 near the centre of the period gap in the orbital period distribution of cataclysmic variables.
dc.description12 pages, 8 figures. Accepted for publication in the Journal of the British Astronomical Association
dc.identifierhttps://arxiv.org/abs/0812.1295
dc.identifierhttp://arxiv.org/abs/0812.1295
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209828
dc.subjectAstrophysics
dc.titleSDSS J162718.39+120435.0 - a dwarf nova in the period gap
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