MRK509
We propose a 100 ks XRISM observation of Mrk509 to assess the origin of its accretion (in)flow and ejection (out)flow. Mrk509 is an ideal target because i) it is very bright in X-rays (<F(2-10)> ~4x10^-11 cgs), providing high enough S/N in the FeK band; ii) it shows a persistent wealth of FeK features, including iii) a strong and multi-component FeK emission line, with a narrow constant component plus a broader one possibly reverberated from a reflector at a few 100s Rg, and iv) two variable narrow absorption lines at ~5.4 keV and ~8.2 keV which could be direct probes of free-falling material. The proposed XRISM high-res observation will allow with a single observation to probe the accretion and ejection processes at once, giving a direct view on the central engine and its energetics.
obsid = 201132010 / Unique Observation/Sequence Number object = MRK509 / Object name pi_name = CAPPI MASSIMO / Proposal Principal Investigator Name ra = 311.041228733086 / Right Ascension (Pointing Position) (deg) dec = -10.7236260171034 / Declination (Pointing Position) (deg) roll_angle = 253.314168647953 / Roll Angle (deg) start_time = 2024-11-12T07:01:04 / Start Time of the Observation stop_time = 2024-11-15T05:56:04 / Stop Time of the Observation exposure = 128380.98625625 / Effective Total Observation Exposure (s) public_date= 2025-12-11 / Public Date