A dataset provided by the European Space Agency

Name 070098
Title Joint Chandra-XMM-EVLA Monitoring of the Gas Cloud G2 as it encounters SGR A*
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0700980101

DOI 10.5270/esa-8nx58e5
Author Dr Daryl Haggard
Description A dense, cold cloud (G2) is on a collision course with Sgr A*, the radio source at our Galactic Center. G2 is on an eccentric orbit and already shows signs of tidal disruption by the black hole. High-energy emission from Sgr A* will likely increase significantly due to this encounter, peaking at pericenter (summer 2013). We propose simultaneous Chandra, XMM, and EVLA monitoring observations to constrain the rates and emission mechanisms of faint X-ray flares, study the radiation properties of Sgr A* as G2 breaks up and feeds gas to the central accretion flow, and detect G2 itself as it is shocked and heated.
Publication On the Fe K absorption - accretion state connection in the Galactic Centre neutron star X-ray binary AX J1745.6-2901 . Ponti, G., Bianchi, S., et all. . MNRAS . 446-1536 . 2015 . 2015MNRAS.446.1536P ,
The X-ray outburst of the Galactic Centre magnetar SGR J1745-2900 during the first 1.5 year . Coti Zelati, F., Rea, N., et all. . MNRAS . 449-2685 . 2015 . 2015MNRAS.449.2685C ,
Fifteen years of XMM-Newton and Chandra monitoring of Sgr A*: evidence for a recent increase in the bright flaring rate . Ponti, G., De Marco, B., et all. . MNRAS . 454-1525 . 2015 . 2015MNRAS.454.1525P ,
High ionisation absorption in low mass X-ray binaries . Ponti, G., Bianchi, S., et all. . AN . 337-512 . 2016 . 2016AN....337..512P ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
The puzzling orbital period evolution of the LMXB AX J1745.6-2901 . Ponti, G., De, K., et all. . MNRAS . 464-840 . 2017 . 2017MNRAS.464..840P ,
Not that long time ago in the nearest galaxy: 3D slice of molecular gas revealed by a 110 yr old flare of Sgr A* . Churazov, E., Khabibullin, I., et all. . MNRAS . 465-45 . 2017 . 2017MNRAS.465...45C ,
Polarization and long-term variability of Sgr A* X-ray echo . Churazov, E., Khabibullin, I., et all. . MNRAS . 468-165 . 2017 . ...,
Sixteen years of X-ray monitoring of Sagittarius A*: Evidence for a decay of the faint flaring rate from 2013 August, 13 months before a rise in the bright flaring rate . Mossoux, Enmanuelle, Grosso, Nicolas, . A&A . 604-85 . 2017 . 2017A&A...604A..85M ,
Probing the interstellar dust towards the Galactic Centre: dust-scattering halo around AX J1745.6-2901 . Jin, Chichuan, Ponti, Gabriele, et all. . MNRAS . 468-2532 . 2017 . 2017MNRAS.468.2532J ,
Chandra monitoring of the Galactic Centre magnetar SGR J1745-2900 during the initial 3.5 years of outburst decay . Coti Zelati, F., Rea, N., et all. . MNRAS . 471-1819 . 2017 . 2017MNRAS.471.1819C ,
Can Sgr A* flares reveal the molecular gas density PDF? . Churazov, E., Khabibullin, I., et all. . MNRAS . 471-3293 . 2017 . 2017MNRAS.471.3293C ,
A transient, flat spectrum radio pulsar near the Galactic Centre . Dexter, J., Degenaar, N., et all. . MNRAS . 468-1486 . 2017 . 2017MNRAS.468.1486D ,
A 149 min periodicity underlies the X-ray flaring of Sgr A* . Leibowitz, Elia, . MNRAS . 474-3380 . 2018 . 2018MNRAS.474.3380L ,
Effects of interstellar dust scattering on the X-ray eclipses of the LMXB AX J1745.6-2901 in the Galactic Centre . Jin, Chichuan, Ponti, Gabriele, et all. . MNRAS . 477-3480 . 2018 . 2018MNRAS.477.3480J ,
X-ray chimneys in the Galactic Centre . Chernyakova, Masha, . Natur . 567-318 . 2019 . 2019Natur.567..318C ,
An X-ray chimney extending hundreds of parsecs above and below the Galactic Centre . Ponti, G., Hofmann, F., et all. . Natur . 567-347 . 2019 . 2019Natur.567..347P ,
A Rapidly Varying Red Supergiant X-Ray Binary in the Galactic Center . Gottlieb, Amy M., Eikenberry, Stephen S., et all. . ApJ . 896-32 . 2020 . 2020ApJ...896...32G ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-09-10T03:30:45Z/2013-09-10T14:15:45Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2014-09-26T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2014-09-26T00:00:00Z, 070098, 17.56_20190403_1200. https://doi.org/10.5270/esa-8nx58e5