The pre-Nova light curve of CSS081007:030559+054715

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dc.catalogadorpau
dc.contributor.authorDrake, A. J.
dc.contributor.authorBeshore, E. C.
dc.contributor.authorDjorgovski, S. G.
dc.contributor.authorMahabal, A. A.
dc.contributor.authorGraham, M. J.
dc.contributor.authorWilliams, R.
dc.contributor.authorCatelan, Marcio
dc.contributor.authorLarson, S. M.
dc.contributor.authorHill, R.
dc.contributor.authorGibbs, A.
dc.contributor.authorBoattini, A.
dc.contributor.authorChristensen, E.
dc.date.accessioned2024-03-05T15:15:11Z
dc.date.available2024-03-05T15:15:11Z
dc.date.issued2009
dc.description.abstractThe Nova CSS081007:030559+054715 was discovered by the Catalina Real-time Transient Survey (CRTS) on Oct 07 2008 UT and followed photometrically with the Palomar-60 between Oct 9 and Dec 12 2008. It was first classified as a possible recurrent nova by Pejcha et al. (2008; ATEL#1825) and later as Oxygen/Neon nova by Prieto et al. (2008; ATel#1835). Beardmore et al. (2008; ATEL#1873) subsequently discovered significant X-ray emission and a 1.77 day period by monitoring it with SWIFT and Nelson et al. (2009; ATEL#1910) observed it with Chandra and found the object to exhibit a supersoft continuum superimposed with prominent emission lines. Goranskij and Metlova (2009; ATEL#1938) observed it optically in B,V and Rc between Dec. 3 2008 and Feb. 19 2009 and discovered two possible periods (1.694 and 0.6106 days). We have analyzed 117 pre-outburst CSS observations of the object taken on 34 nights between Oct 1 2005 and Mar 10 2008 UT. We find the the object exhibited variability well in excess of one magnitude during this time. However, we find no evidence for the post-outburst 1.77 day X-ray period signal observed by Beardmore et al. (2008; ATEL#1873) or the 0.6106 and 1.694 day optical periods observed by Goranskij and Metlova (2009; ATEL#1938). We find the best period for pre-outburst oscillations is 11.386 +/- 0.010 days. However, the data do not strongly constrain the periodic nature of the pre-outburst oscillations. On going CSS observations suggest that the Nova must not have begun the rapid decline noted by Goranskij and Metlova (2009; ATEL#1938) until after Jan 29th UT (rather the Jan. 22nd). Spectroscopic follow-up obtained with the SMARTs 1.5m telescope on Nov. 5th and is consistent with that of Prieto et al. (2008; ATel#1835).
dc.fuente.origenORCID
dc.identifier.urihttps://www.astronomerstelegram.org/?read=1940
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/84130
dc.information.autorucInstituto de Astrofísica; Catelan , Marcio; 0000-0001-6003-8877; 1001556
dc.language.isoen
dc.rightsacceso abierto
dc.titleThe pre-Nova light curve of CSS081007:030559+054715
dc.typecarta
sipa.codpersvinculados1001556
sipa.trazabilidadORCID;2024-01-22
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