HIGH RESOLUTION X-RAY PROBING OF CIRCUMSTELLAR MEDIUM AROUND SUPERNOVAE IN THE EARLY PHASE
We propose a ToO observation of supernovae (SN) in nearby galaxies. Goal is to detect emission lines including Fe-K lines and measure their center energy and width (minimum case). In addition, when the flux is higher, we could measure metal abundance pattern and ionization state of CSM. From these measurements, we can obtain information on physical properties of circumstellar (CSM) medium around SN. If the SN is enough bright to monitor a long time trend, we propose one more observation after one month or later to probe a mass loss history of progenitor (ideal case).
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'RESOLVE ' / Instrument name FILTER = 'FE55 ' / Filter name used OBS_ID = '900002010' / Observation identification string OBJECT = 'SN2024iss' / Object name OBSERVER= 'XRISM Collaboration' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 194.7759 / [deg] Object Right ascension DEC_OBJ = 28.8101 / [deg] Object Declination RA_PNT = 194.778868037155 / Pointing RA DEC_PNT = 28.8085649034218 / Pointing DEC RA_NOM = 194.775154851001 / [deg] Nominal aspect point R.A. DEC_NOM = 28.8110389314056 / [deg] Nominal aspect point Dec. PA_NOM = 313.825881540338 / [deg] Nominal aspect point roll. TELAPSE = 132856.765625 / Elapsed time DATE-OBS= '2024-05-24T15:25:49.234375' / Start date DATE-END= '2024-05-26T04:20:06' / Stop date ONTIME = 2746.8838705 / On-source time EXPOSURE= 2746.8838705 / 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 = '2024-09-24T18:21:35' / Date and time this file was created or updated SIB2_VER= / SIB2 version JAXA