Chandra Observation of the Type IIn Supernova 2005bx

Details Chandra Observation of the Type IIn Supernova 2005bx Chandra Observation of the Type IIn Supernova 2005bx

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1867f&link_type=abstract

Chandra Proposal ID #06508211

Computer Science

Chandra Proposal Id #06508211

Scientific paper

We propose to observe the recently discovered Type IIn (narrow emission line) SN 2005bx. Its optical spectrum (ATEL #475) shows it is similar to the extremely X-ray luminous SN 1988Z, which was observed at Lx=1e41 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. A simple constant-density model of the circumstellar (CS) material around 1988Z predicts an Lx of 1e43 erg/s at an age of a few months with a hard spectrum. However, the CS interaction is complicated, and this naive model may not hold (e.g., there could be absorption by the CS gas). It is difficult to make clear predictions because of the lack of knowledge. A 30 ks obs of 2005bx (at 130 Mpc) will reach a sensitivity of ~1e39 erg/s (4 counts). This early observation would be unique for this interesting and poorly understood class of SNe. Chandra may only see 2-3 SNe like this during its lifetime, and this opportunity should not be missed.

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