XRISM RESOLVE observation 300005010

Title

THE PROGENITOR SYSTEM AND EXPLOSION PHYSICS FOR KEPLER'S SNR

Abstract

We propose to observe Kepler's supernova remnant (SNR), which is a rare Type-Ia SNR associated with N-rich circumstellar medium (CSM). Our minimal goals are (1) to measure elemental abundances of the CSM and (2) to study electron-ion temperature nonequilibration. The CSM abundance will constrain the mass of the donor star in the progenitor system. If we are awarded 200 ks, then we will perform spatially-resolved spectroscopy, and we will reveal the CSM distribution. We will also clearly detect outermost ejecta materials, i.e., O and C (if present), from the southern rim, where the CSM contribution is much weaker than in the north. The amount of the outermost ejecta will allow us to infer explosion physics which also helps reveal the subclass of Kepler's SN.

FITS header

TELESCOP= 'XRISM   '           / Mission name
INSTRUME= 'RESOLVE '           / Instrument name
FILTER  = 'OPEN    '           / Filter name used
OBS_ID  = '300005010'          / Observation identification string
OBJECT  = 'Kepler_SNR'         / Object name
OBSERVER= 'XRISM Collaboration' / PI name
OBS_MODE= 'POINTING'           / POINTING or SLEW or ALL
RA_OBJ  =            262.67192 / [deg] Object Right ascension
DEC_OBJ =            -21.49064 / [deg] Object Declination
RA_PNT  =     262.659742626942 / Pointing RA
DEC_PNT =    -21.4825604699957 / Pointing DEC
RA_NOM  =     262.664106246742 / [deg] Nominal aspect point R.A.
DEC_NOM =    -21.4820923775488 / [deg] Nominal aspect point Dec.
PA_NOM  =     90.0005553921166 / [deg] Nominal aspect point roll.
TELAPSE =     110360.014982015 / Elapsed time
DATE-OBS= '2024-02-17T06:18:52.985018' / Start date
DATE-END= '2024-02-18T12:58:13' / Stop date
ONTIME  =         53448.968107 / On-source time
EXPOSURE=         53448.968107 / Exposure time
PROCVER = '03.00.013.009'      / Processing script version
MKFFF   = 'ISAS/JAXA'          / Origin of First FITS file
ORIGIN  = 'GSFC/NASA'          / Origin of Processed FITS file
SOFTVER = 'Hea_21Aug2024_V6.34_XRISM_21Aug2024_V001' / Version of HEADAS used
CALDBVER= 'gen20240315_xtd20240815_rsl20240815' / Version of CALDB used
DATE    = '2024-09-22T18:45:54' / Date and time this file was created or updated
SIB2_VER=                      / SIB2 version JAXA

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