Prompt Chandra Observation of the Type Iin SN 2002HI

Details Prompt Chandra Observation of the Type Iin SN 2002HI Prompt Chandra Observation of the Type Iin SN 2002HI

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop.1350l&link_type=abstract

Chandra Proposal ID #03508129

Computer Science

Chandra Proposal Id #03508129

Scientific paper

We propose to observe the Type IIn (narrow emission line) SN 2002hi. Its optical spectra show it is similar to the extremely X-ray luminous SN 1988Z (IAUC 8006), which was observed at Lx=1e41 erg/s at an age of 6.5yr. 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 88Z 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 10ks obs of 02hi (at 260 Mpc) will reach a sensitivity as low as ~1e40 erg/s. This early obs 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. In the future, we will propose for these SNe under Peer Review.

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