The X-ray source associated with the M31 globular cluster Bovirgul135 (hereafter XBo135) may contain the largest stellar mass black hole (BH) to date. It has beenobserved several times with Chandra and XMM-Newton, and has always exhibitedemission spectra characteristic of the BH low state. XBo 135 exhibited thisbehaviour at virgul4-6E+38 erg/s, suggesting a primary mass >50 Solar masses.Possible formation scenarios include stellar mergers in the cluster center, orthe direct collapse of a metal poor high mass star. We request 120 ks ofXMM-Newton time to investigate the metalicity, and a 5 ks Chandra pointing toaccurately locate the source. These observations will test the feasibility ofthese scenarios; in particular, a high metalicity will rule out direct collapse.
Publications
Chandra Identification of 26 New Black Hole Candidates in the Central Region of M31 |Barnard, R., Garcia, M. R., | ApJ | 770-148 | 2013 | 2013ApJ...770..148B | http://ui.adsabs.harvard.edu/#abs/2013ApJ...770..148B
The Second Ultraluminous X-Ray Source Transient in M31: Chandra, Hubble Space Telescope, and XMM Observations, and Evidence for an Extended Corona |Barnard, R., Garcia, M., | ApJ | 772-126 | 2013 | 2013ApJ...772..126B | http://ui.adsabs.harvard.edu/#abs/2013ApJ...772..126B
The low or retrograde spin of the first extragalactic microquasar: implications for Blandford-Znajek powering of jets |Middleton, Matthew J., Miller-Jones, James C. A., | MNRAS | 439-1740 | 2014 | 2014MNRAS.439.1740M | http://ui.adsabs.harvard.edu/#abs/2014MNRAS.439.1740M
XMM-Newton and Chandra Observations of the M31 Globular Cluster Black Hole Candidate XB135: A Heavyweight Contender Cut Down to Size |Barnard, R., Primini, F., et al. | ApJ | 802-85 | 2015 | 2015ApJ...802...85B | http://ui.adsabs.harvard.edu/#abs/2015ApJ...802...85B
The Slowest Spinning X-Ray Pulsar in an Extragalactic Globular Cluster |Zolotukhin, Ivan Yu., Bachetti, Matteo, et al. | ApJ | 839-125 | 2017 | 2017ApJ...839..125Z | http://ui.adsabs.harvard.edu/#abs/2017ApJ...839..125Z
Deep XMM-Newton observations of the northern disc of M31. II. Tracing the hot interstellar medium |Kavanagh, Patrick J., Sasaki, Manami, et al. | A&A | 637-12 | 2020 | 2020A&A...637A..12K | http://ui.adsabs.harvard.edu/#abs/2020A&A...637A..12K
An XMM-Newton View of the Andromeda Galaxy as Explored in a Legacy Survey (New-ANGELS). I. The X-Ray Source Catalog |Huang, Rui, Li, Jiang-Tao, et al. | ApJS | 268-36 | 2023 | 2023ApJS..268...36H | http://ui.adsabs.harvard.edu/#abs/2023ApJS..268...36H
Robust constraints on feebly interacting particles using XMM-Newton |Luque, Pedro De la Torre, Balaji, Shyam, | PhRvD | 109-L101305 | 2024 | 2024PhRvD.109j1305L | http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L
Multimessenger search for electrophilic feebly interacting particles from supernovae |Luque, Pedro De la Torre, Balaji, Shyam, | PhRvD | 109-103028 | 2024 | 2024PhRvD.109j3028L | http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L
Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints |De la Torre Luque, Pedro, Balaji, Shyam, | ApJ | 968-46 | 2024 | 2024ApJ...968...46D | http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-06-26T05:23:25Z/2012-06-27T15:22:40Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Robin Barnard, 2013, 'A new heavyweight champion for stellar mass BHsquestionMark XMM and Chandra investigate', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4dmhau2
