NGC1313_X-1
We propose a 100 ks XRISM observation of NGC1313 X 1, an exceptional target for testing ULX wind-driven feedback. This nearby source shows clear signs of super-Eddington accretion, with Fe xxv/Fe xxvi absorption lines revealing ultrafast winds up to 0.25c. It is embedded in a 452 X 266 pc ionized bubble with shock-ionized rims, as revealed by MUSE onboard VLT. Its rich multiwavelength data, spatial wind-bubble alignment, and mechanical energy budget comparable to its luminosity make it the most compelling system for assessing mechanical feedback in ULXs with XRISM. We will use Resolve's spectral capabilities to determine whether the wind in NGC1313 X-1 carries enough kinetic power to inflate the surrounding bubble, directly probing how ULXs shape their host galaxies.
obsid = 202047010 / Unique Observation/Sequence Number
object = NGC1313_X-1 / Object name
pi_name = CHAKRABORTY PRIYANKA / Proposal Principal Investigator Name
ra = 49.5847260877372 / Right Ascension (Pointing Position) (deg)
dec = -66.4869286210061 / Declination (Pointing Position) (deg)
roll_angle = 330.703247084077 / Roll Angle (deg)
start_time = 2026-04-10T18:57:04 / Start Time of the Observation
stop_time = 2026-04-13T17:20:04 / Stop Time of the Observation
exposure = 121870.7963 / Effective Total Observation Exposure (s)
public_date= 2027-05-02 / Public Date