SUMMARY OF SEQUENCE NUMBER 500064

SUMMARY OF SEQUENCE NUMBER 500064

Title: PROMPT AXAF OBSERVATIONS OF NEARBY SUPERNOVAE

Observer: LEWIN

Subject Category: SN, SNR, and isolated NS

Seq: 500064 ObsId: 00768

Long-term Plan bin: no LTS bin

ABSTRACT

In many Type II supernovae (SNe), and some SN Ib/c, the interaction between the SN shock and the circumstellar material shed by the progenitor star creates a strong reverse shock that becomes extremely luminous in X-rays (> 10^39 erg/sec, 0.1-2.4 keV). The X-ray luminosity can be reasonably predicted by detecting the accompanying electron synchrotron radio emissions from the shocked regions. We propose AXAF ToO observations of selected categories of SNe to substantially increase the number of X-ray detections (currently at nine). Combined X-ray and radio observations will test theories of the shock mechanism and provide information on the SN progenitor. In addition X-ray spectra of the brighter SNe will constrain the physical properties of the reverse shock region and the SN ejecta.

TARGET SUMMARY

TARGET NAME RADEC TIME SI GRAT TYPE TC ROLL PRE PHASE MULTI PRI
SN1998S
176.525460
47.482167
20.00000
ACIS-S
NONE
TOO
yes
no
no
no
no
5

IMAGES

(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)

Roll/Visibility

PARAMETERS

Obscat Parameters