M82
Observational facts that metals in the intergalactic medium are found at low and high redshifts suggest that some part of all metals ever created now reside outside galaxies. Galactic-scale starburst-driven outflows are one of the best-studied and most common form of outflow capable of transporting substantial amount of materials inside galaxies into intergalactic space. To verify the scenario, we propose to observe the most prominent nearby galactic-scale starburst phenomena occurred around the nuclear regions of M82 and NGC253. Resolve observations would realize direct measurements of outflow velocity for X-ray emitting hot gas which is a link between galaxies and intergalactic space and the results would yield new insights in the both chemical and dynamical evolution of the Universe.
obsid = 300068010 / Unique Observation/Sequence Number
object = M82 / Object name
pi_name = Collaboration XRISM / Proposal Principal Investigator Name
ra = 148.969408586503 / Right Ascension (Pointing Position) (deg)
dec = 69.6795593355369 / Declination (Pointing Position) (deg)
roll_angle = 286.833526055109 / Roll Angle (deg)
start_time = 2024-05-12T00:05:04 / Start Time of the Observation
stop_time = 2024-05-14T23:58:04 / Stop Time of the Observation
exposure = 223180.1356351 / Effective Total Observation Exposure (s)
public_date= 2025-08-31 / Public Date