SNR0509-68.7
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.
obsid = 201104010 / Unique Observation/Sequence Number
object = SNR0509-68.7 / Object name
pi_name = WILLIAMS BRIAN / Proposal Principal Investigator Name
ra = 77.2490207824039 / Right Ascension (Pointing Position) (deg)
dec = -68.7266631644073 / Declination (Pointing Position) (deg)
roll_angle = 89.9944241665873 / Roll Angle (deg)
start_time = 2024-09-30T17:03:04 / Start Time of the Observation
stop_time = 2024-10-04T11:06:04 / Stop Time of the Observation
exposure = 189817.0567342 / Effective Total Observation Exposure (s)
public_date= 2025-10-16 / Public Date