The Extreme Supernova 2006gy

Details The Extreme Supernova 2006gy The Extreme Supernova 2006gy

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2293p&link_type=abstract

Chandra Proposal ID #07508259

Astronomy and Astrophysics

Astronomy

Chandra Proposal Id #07508259

Scientific paper

We propose to observe the Type IIn (narrow emission line) SN 2006gy in NGC 1260. Its optical spectrum (CBET/IAUC submitted) show it is similar to the extremely X-ray luminous SN 1988Z, which was observed at Lx=10^41 erg/s at an age of 6.5 yr. It is unknown what the early-time (first few weeks to months) Lx of such a SN would be. Past attempts at early X-ray detections (2005bx, 2005db) have given only upper limits (but follow-ups have been approved), but the class is likely not homogenous. The extreme optical luminosity (M_V = -22) makes this SN stand out even among the IIn's (an already unusual class of objects). The astrometry will be crucial to resolving the SN from possible nuclear activity. Two X-ray sources within 2.5 arcmin of 2006gy (found in ObsID 5597) have 2MASS counterparts. They have fluxes of 5.1e-15 and 2.1e-14 (cgs). Our request of 30 ks is based on localizing these sources well enough (getting 25-30 cts) to achieve ~<0.2" X-ray/2MASS astrometry.

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