Significant brightening of the progenitor of SN2010da at 3.6 micron 6 months prior to the eruption

Details Significant brightening of the progenitor of SN2010da at 3.6 micron 6 months prior to the eruption Significant brightening of the progenitor of SN2010da at 3.6 micron 6 months prior to the eruption

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2648....1l&link_type=abstract

The Astronomer's Telegram, #2648

Astronomy and Astrophysics

Astronomy

3

Infra-Red, Novae, Supernovae, Transients

Scientific paper

We report on additional photometry of all available Spitzer/IRAC 3.6 micron observations of the progenitor star of the LBV outburst SN2010da (initially identified in Khan et al. ATEL #2632; Khan et al. 2010, ApJ, 715, 904; see also Berger et al. ATEL #2638). We find that the source remained steady to within a few percent in observations from 2003 Nov 21 and 24 (P01083: PI Helou) and 2007 Dec 29 (P40204: PI Kennicutt).

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