UNVEILING NATURE OF COMPTON-THICK TORUS IN CIRCINUS GALAXY
We propose to observe the Circinus galaxy with XRISM, the most nearby (4.2 Mpc) Compton-thick AGN showing the brightest narrow Fe-Ka line among all known AGNs. The bright fluorescence lines and Compton-thick nature make it the best target for studying the torus itself through high resolution spectroscopy. We use the Compton shoulder structure of Fe-Ka and the properties of other fluorescence lines to unveil the torus structure. The Resolve spectrum will also reveal the origins and kinematics of the extended soft X-ray emission.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'XTEND ' / Instrument name OBS_ID = '000162000' / Observation identification string OBJECT = 'Circinus_Galaxy' / Object name OBSERVER= 'XRISM Collaboration' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 213.2915 / [deg] Object Right ascension DEC_OBJ = -65.3392 / [deg] Object Declination RA_PNT = 213.255068966408 / Pointing RA DEC_PNT = -65.3390611521831 / Pointing DEC RA_NOM = 213.290109171456 / [deg] Nominal aspect point R.A. DEC_NOM = -65.3392728915775 / [deg] Nominal aspect point Dec. PA_NOM = 114.477341559988 / [deg] Nominal aspect point roll. TELAPSE = 390163.765625 / Elapsed time DATE-OBS= '2024-02-08T11:32:07.234375' / Start date DATE-END= '2024-02-12T23:54:51' / Stop date ONTIME = 306794.52792 / On-source time EXPOSURE= 306794.52792 / 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 = '2024-09-21T19:39:48' / Date and time this file was created or updated SIB2_VER= / SIB2 version JAXA