2009A&A...506.1309R -
Astronomy and Astrophysics, volume 506, 1309-1317 (2009/11-2)
XMMSL1 J060636.2-694933: an XMM-Newton slew discovery and Swift/Magellan follow up of a new classical nova in the LMC.
READ A.M., SAXTON R.D., JONKER P.G., KUULKERS E., ESQUEJ P., POJMANSKI G., TORRES M.A.P., GOAD M.R., FREYBERG M.J. and MODJAZ M.
Abstract (from CDS):
In order to discover new X-ray transients, the data taken by XMM-Newton as it slews between targets are being processed and cross-correlated with other X-ray observations. A bright source, XMMSL1 J060636.2-694933, was detected on 18 July 2006 at a position where no previous X-ray source had been seen. The XMM-Newton slew data, plus follow-up dedicated XMM-Newton and Swift observations, plus optical data acquired with the Magellan Clay telescope, and archival All-Sky Automated Survey (ASAS) data were used to classify the new object, and to investigate its properties. No XMM-Newton slew X-ray counts are detected above 1keV and the source is seen to be over five hundred times brighter than the ROSAT All-Sky Survey upper limit at that position. The line-rich optical spectrum acquired with the Magellan telescope allows the object to be classified as an A0 auroral phase nova, and the soft X-ray spectrum indicates that the nova was in a super-soft source state in the X-ray decline seen in the follow-up X-ray observations. The archival ASAS data suggests that the nova at onset (Oct 2005) was a ``very fast'' nova, and an estimate of its distance is consistent with the nova being situated within the LMC. With the discovery presented here of a new classical nova in the LMC, it is clear that XMM-Newton slew data are continuing to offer a powerful opportunity to find new X-ray transient objects.
Abstract Copyright:
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Journal keyword(s):
stars: novae, cataclysmic variables - stars: individual: XMMSL1 J060636.2-694933 - surveys - X-rays: general
CDS comments:
Paragraphe 5.2 calibrator LTT 9293 not in Simbad.
Simbad objects:
12
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