XRISM OBSERVATIONS OF TYCHO'S SUPERNOVA REMNANT
Tycho s SNR is one of the best studied Type Ia remnants in the sky, yet there remains much we do not know, such as ion temperatures of the ejecta species, abundances of rare elements like Cr and Mn (sensitive discriminators of the progenitor model), and the doppler velocities of elements beyond Si. We propose here for observations of both the center of the remnant and the SE Fe-rich knot for 75 ks each as a minimal observation goal. Ideally, we would map the remnant with a series of pointings, determining the spatial distribution of the ion temperature for various elements, and go even deeper on the Fe-rich knot in the SE to pull out any faint features.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'RESOLVE ' / Instrument name FILTER = 'FE55 ' / Filter name used OBS_ID = '300062010' / Observation identification string OBJECT = 'Tycho_N ' / Object name OBSERVER= 'XRISM Collaboration' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 6.33333 / [deg] Object Right ascension DEC_OBJ = 64.19083 / [deg] Object Declination RA_PNT = 6.33368821791761 / Pointing RA DEC_PNT = 64.1946043976559 / Pointing DEC RA_NOM = 6.33396749767157 / [deg] Nominal aspect point R.A. DEC_NOM = 64.1905188329362 / [deg] Nominal aspect point Dec. PA_NOM = 184.872927305398 / [deg] Nominal aspect point roll. TELAPSE = 90009 / Elapsed time DATE-OBS= '2024-03-22T03:49:37' / Start date DATE-END= '2024-03-23T04:49:46' / Stop date ONTIME = 5211.2948643 / On-source time EXPOSURE= 5211.2948643 / 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 = '2024-09-20T19:59:02' / Date and time this file was created or updated SIB2_VER= / SIB2 version JAXA