PG1211+143
The nearby QSO, PG 1211+143, is one of the first known prototypes of the ultra fast outflows (UFOs). It has a deep, blue-shifted Fe K absorption trough, which can be modeled by a fast wind with an outflow velocity of 0.1c. It has an extensive soft X-ray UFO, as revealed by multiple absorption lines measured by XMM/RGS and Chandra/HETG and hosts a UV UFO counterpart via HST/COS. Here, a 200 ks XRISM observation of PG 1211+143 is proposed. This will provide the first precision, high resolution measurement of the Fe K band UFO, at a resolution surpassing the soft X-ray measurements. XRISM will resolve the individual Fe K band absorption profiles, allowing the line widths and velocities to be measured at high precision in order to infer the wind structure and geometry.
obsid = 201065010 / Unique Observation/Sequence Number
object = PG1211+143 / Object name
pi_name = REEVES JAMES / Proposal Principal Investigator Name
ra = 183.573254223793 / Right Ascension (Pointing Position) (deg)
dec = 14.0547358617128 / Declination (Pointing Position) (deg)
roll_angle = 118.51646110974 / Roll Angle (deg)
start_time = 2024-11-29T15:51:04 / Start Time of the Observation
stop_time = 2024-12-04T18:50:04 / Stop Time of the Observation
exposure = 226821.93044 / Effective Total Observation Exposure (s)
public_date= 2025-12-17 / Public Date