ATel #16775
XRISM/Xtend Transient Search (XTS) reported the second detection of a prestellar flare from 2MASS J11414215-6521298
| Date | 2024-08-15 |
|---|---|
| Author(s) | Ogawa et al. |
| Coordinates | RA = 175.418 deg, Dec = -65.363 deg |
| Reported flux | 9.4e-12 erg cm−2 s−1 |
Transient sources detected in this observation and reported through The Astronomer's Telegram.
XRISM/Xtend Transient Search (XTS) reported the second detection of a prestellar flare from 2MASS J11414215-6521298
| Date | 2024-08-15 |
|---|---|
| Author(s) | Ogawa et al. |
| Coordinates | RA = 175.418 deg, Dec = -65.363 deg |
| Reported flux | 9.4e-12 erg cm−2 s−1 |
XRISM/Xtend Transient Search (XTS) reported the third detection of a prestellar flare from 2MASS J11414215-6521298
| Date | 2024-08-16 |
|---|---|
| Author(s) | Ogawa et al. |
| Coordinates | RA = 175.418 deg, Dec = -65.363 deg |
| Reported flux | 4.1e-11 erg cm−2 s−1 |
XRISM/Xtend Transient Search (XTS) detected a possible stellar flare from 4XMM J114021.0-651852/1eRASS J114021.5-651851
| Date | 2024-08-19 |
|---|---|
| Author(s) | Ogawa et al. |
| Coordinates | RA = 175.081 deg, Dec = -65.316 deg |
| Reported flux | 1.3e-13 erg cm−2 s−1 |
THE X-RAY VIEW OF INTERSTELLAR DUST FROM SILICON TO IRON
We propose to observe the bright X-ray binary GX340+00 for 150 ks in order to explore the chemical and physical properties of the intervening interstellar dust. This source is the ideal candidate to study dense, never explored before, regions of the Galaxy. We will model the Si, S, Ca and Fe K-edges due to dust absorption. This will allow us to assess the silicate content (through Si and Fe) and its Ca inclusion in the core, as well as the sulphate content (through S and Fe). Additional science includes the study of the intrinsic highly ionized absorber/emitter.
TELESCOP= 'XRISM ' / Mission name INSTRUME= 'XTEND ' / Instrument name OBS_ID = '300002010' / Observation identification string OBJECT = 'GX340+00' / Object name OBSERVER= 'XRISM Collaboration' / PI name OBS_MODE= 'POINTING' / POINTING or SLEW or ALL RA_OBJ = 251.44875 / [deg] Object Right ascension DEC_OBJ = -45.61111 / [deg] Object Declination RA_PNT = 251.466543457927 / Pointing RA DEC_PNT = -45.6038809992061 / Pointing DEC RA_NOM = 251.448383076685 / [deg] Nominal aspect point R.A. DEC_NOM = -45.6111195944741 / [deg] Nominal aspect point Dec. PA_NOM = 263.996906556134 / [deg] Nominal aspect point roll. TELAPSE = 324961.562052995 / Elapsed time DATE-OBS= '2024-08-17T11:37:17.398765' / Start date DATE-END= '2024-08-21T05:53:18.960818' / Stop date ONTIME = 15202.923821 / On-source time EXPOSURE= 15202.923821 / 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 = '2024-09-21T21:53:45' / Date and time this file was created or updated SIB2_VER= / SIB2 version JAXA