XRISM RESOLVE observation 201057010

Title

DIRECT EVIDENCE FOR HADRON ACCELERATION IN PERSISTENT JETS OF THE MICROQUASAR 1E 1740.7--2942 WITH XRISM

Abstract

We propose 100 ksec observation of the microquasar 1E 1740.7--2942 to reveal an existence of Doppler-shifted emission lines originating from ionized heavy elements in relativistic jets with XRISM/Resolve. This microquasar is persistent X-ray source with steady bipolar radio jets in the Galaxy Centre region. Previous Chandra/HETGS observation in 1999 suggested a possible narrow Doppler-shifted emission lines originating from jets. Through high resolution X-ray spectroscopy with XRISM, we will clarify whether the jet plasma is really hadronic origin and could make 1E 1740.7--2942 the second jet source which shows a direct evidence for hadron acceleration in jets after SS433.

FITS header

TELESCOP= 'XRISM   '           / Mission name
INSTRUME= 'RESOLVE '           / Instrument name
FILTER  = 'OPEN    '           / Filter name used
OBS_ID  = '201057010'          / Observation identification string
OBJECT  = '1E1740.7-2942'      / Object name
OBSERVER= 'KAZUTAKA YAMAOKA'   / PI name
OBS_MODE= 'POINTING'           / POINTING or SLEW or ALL
RA_OBJ  =              265.978 / [deg] Object Right ascension
DEC_OBJ =             -29.7456 / [deg] Object Declination
RA_PNT  =     265.973272751052 / Pointing RA
DEC_PNT =    -29.7450693555333 / Pointing DEC
RA_NOM  =     265.977947117321 / [deg] Nominal aspect point R.A.
DEC_NOM =    -29.7445842869775 / [deg] Nominal aspect point Dec.
PA_NOM  =     89.7605935241704 / [deg] Nominal aspect point roll.
TELAPSE =      202676.89319399 / Elapsed time
DATE-OBS= '2025-02-25T14:25:31' / Start date
DATE-END= '2025-02-27T22:43:27.893194' / Stop date
ONTIME  =         129446.27768 / On-source time
EXPOSURE=         129446.27768 / Exposure time
PROCVER = '03.00.013.010'      / 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= 'gen20241115_xtd20241115_rsl20241115' / Version of CALDB used
DATE    = '2025-03-06T07:54:00' / Date and time this file was created or updated
SIB2_VER= 'V03.01  '           / SIB2 version JAXA

Links