PROBING FORMATION MECHANISM OF BROAD-LINE REGION IN CHANGING-STATE AGN NGC 3516 WITH XRISM
In an AGN, a Broad-Line Region (BLR) is one of the most important structures deeply related to the evolution of black holes and feedback to galaxies. However, its formation mechanism is still unclear. Therefore, we propose a 160 ksec XRISM observation on a changing-state AGN NGC 3516, in which a BLR is likely being formed by an outflow in addition to an inflow. With Resolve, we can decompose Fe-K lines from a BLR and a torus, and compare the flux and profile of the BLR line to those in our prior study (Noda+23). We also aim to detect weak Fe XXV/XXVI absorption lines by the outflow. Xtend enables us to identify a soft X-ray continuum that produces the outflow via radiation pressure. By these, we constrain the contributions of inflow and outflow to the BLR formation for the first time.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'XTEND ' / Instrument name OBS_ID = '201034010' / Observation identification string OBJECT = 'NGC3516 ' / Object name OBSERVER= 'HIROFUMI NODA' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 166.6978 / [deg] Object Right ascension DEC_OBJ = 72.5687 / [deg] Object Declination RA_PNT = 166.652449549473 / Pointing RA DEC_PNT = 72.5735094631505 / Pointing DEC RA_NOM = 166.698101571663 / [deg] Nominal aspect point R.A. DEC_NOM = 72.5683302545313 / [deg] Nominal aspect point Dec. PA_NOM = 134.430263515645 / [deg] Nominal aspect point roll. TELAPSE = 313661.963135988 / Elapsed time DATE-OBS= '2024-10-26T01:15:29.036864' / Start date DATE-END= '2024-10-29T16:23:11' / Stop date ONTIME = 197864.82223 / On-source time EXPOSURE= 197864.82223 / Exposure time PROCVER = '03.00.013.009' / Processing script version MKFFF = 'ISAS/JAXA' / Origin of First FITS file ORIGIN = 'GSFC/NASA' / Origin of Processed FITS file SOFTVER = 'Hea_21Aug2024_V6.34_XRISM_21Aug2024_V001' / Version of HEADAS used CALDBVER= 'gen20240315_xtd20240815_rsl20240815' / Version of CALDB used DATE = '2024-11-05T07:52:18' / Date and time this file was created or updated SIB2_VER= 'V03.01 ' / SIB2 version JAXA