XRISM RESOLVE observation 201106010

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Title

A XRISM PATHFINDER STUDY: MILKY WAY-LIKE BUBBLES IN EXTERNAL DISK GALAXIES

Abstract

The circumgalactic medium (CGM) plays a key role in the evolution and formation of galaxies. Gamma and X-ray observatories discovered spectacular structures in the emission of the tenuous gas surrounding the Milky Way: the so-called Fermi and eROSITA bubbles. Galaxy formation simulations suggest that MW-like bubbles could be ubiquitous, but so far no instrument offered the combination of a large field of view, low background, and high sensitivity required for their detection in other galaxies. We propose to search for MW-like bubbles in two nearby, edge-on, disk galaxies, analogs of the Milky Way and Andromeda. Exploiting XRISM Xtend capabilities, we will explore the presence of MW-like bubbles by characterizing the spatial and spectral properties of the large-scale CGM emission.

FITS header

TELESCOP= 'XRISM   '           / Mission name
INSTRUME= 'RESOLVE '           / Instrument name
FILTER  = 'OPEN    '           / Filter name used
OBS_ID  = '201106010'          / Observation identification string
OBJECT  = 'NGC4192 '           / Object name
OBSERVER= 'AKOS BOGDAN'        / PI name
OBS_MODE= 'POINTING'           / POINTING or SLEW or ALL
RA_OBJ  =             183.4512 / [deg] Object Right ascension
DEC_OBJ =              14.9005 / [deg] Object Declination
RA_PNT  =       183.4542060531 / Pointing RA
DEC_PNT =     14.8986501271136 / Pointing DEC
RA_NOM  =     183.450892371062 / [deg] Nominal aspect point R.A.
DEC_NOM =     14.9011902305448 / [deg] Nominal aspect point Dec.
PA_NOM  =     314.999151088682 / [deg] Nominal aspect point roll.
TELAPSE =               169477 / Elapsed time
DATE-OBS= '2025-05-21T17:08:30' / Start date
DATE-END= '2025-05-23T16:13:07' / Stop date
ONTIME  =         86709.983042 / On-source time
EXPOSURE=         86709.983042 / Exposure time
PROCVER = '03.02.014.010'      / Processing script version
MKFFF   = 'ISAS/JAXA'          / Origin of First FITS file
ORIGIN  = 'GSFC/NASA'          / Origin of Processed FITS file
SOFTVER = 'Hea_12Mar2025_V6.35_XRISM_28Feb2025_V002' / Version of HEADAS used
CALDBVER= 'gen20241115_xtd20241115_rsl20241115' / Version of CALDB used
DATE    = '2025-07-13T23:57:46' / Date and time this file was created or updated
SIB2_VER= 'V03.01  '           / SIB2 version JAXA

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