RESOLVING THE TWO BRIGHTEST YOUNG TYPE IA SNRS IN THE LMC
We propose for observations of the two brightest Type Ia supernova remnants in the LMC. Both of these objects, 0509-68.7 (N103B) and 0519-69.0 are young (<1000 yrs). These remnants are very well-studied with other observatories, but XRISM observations will allow us to directly measure the ion temperature of various species, determine the bulk velocity of the ejecta products, measure elemental abundances of both ejecta and the surrounding medium, and search for new spectral features. We request 125 ks for N103B and 300 ks for 0519-69.0.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'RESOLVE ' / Instrument name FILTER = 'FE55 ' / Filter name used OBS_ID = '201104010' / Observation identification string OBJECT = 'SNR0509-68.7' / Object name OBSERVER= 'BRIAN WILLIAMS' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 77.2484 / [deg] Object Right ascension DEC_OBJ = -68.7266 / [deg] Object Declination RA_PNT = 77.2378291808205 / Pointing RA DEC_PNT = -68.7271313784471 / Pointing DEC RA_NOM = 77.2490207824039 / [deg] Nominal aspect point R.A. DEC_NOM = -68.7266631644073 / [deg] Nominal aspect point Dec. PA_NOM = 89.9944241665873 / [deg] Nominal aspect point roll. TELAPSE = 322071.650476009 / Elapsed time DATE-OBS= '2024-09-30T17:37:05' / Start date DATE-END= '2024-10-04T11:04:56.650476' / Stop date ONTIME = 8026.9942173 / On-source time EXPOSURE= 8026.9942173 / 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 = '2024-10-11T07:58:48' / Date and time this file was created or updated SIB2_VER= 'V03.01 ' / SIB2 version JAXA