GX5-1
Recent analyses of extraterrestrial materials returned by sample return missions have refined our understanding of solar composition. However, the elemental composition within the Milky Way, historically estimated from meteorites and the Sun's photosphere, faces scrutiny for potentially underrepresenting heavy elements compared to interstellar space. This proposal aims to utilize XRISM to accurately quantify the total abundance of heavy elements, including iron, in both gaseous and solid states in the interstellar medium towards GX~5-1, a Low-Mass X-ray Binary, overcoming limitations of traditional methods.
obsid = 201060010 / Unique Observation/Sequence Number
object = GX5-1 / Object name
pi_name = HAYASHI TASUKU / Proposal Principal Investigator Name
ra = 270.284264195198 / Right Ascension (Pointing Position) (deg)
dec = -25.0783055851588 / Declination (Pointing Position) (deg)
roll_angle = 90.6818100818163 / Roll Angle (deg)
start_time = 2025-04-15T13:47:04 / Start Time of the Observation
stop_time = 2025-04-16T15:55:04 / Stop Time of the Observation
exposure = 51163.861711069 / Effective Total Observation Exposure (s)
public_date= 2026-04-29 / Public Date