We request an XMM (50 ks) + NuSTAR (100 ks) ToO observation of the ULX P13 inNGC7793 during its ultraluminous regime (Lx > 2e39 erg/s). The dynamical massconstraint available for this source requires it to be super-Eddington at theseluminosities, making it a key laboratory for understanding this exotic mode ofaccretion. These observations will provide the first hard X-ray detection ofthis source, and provide a vital point of comparison with a knownsuper-Eddington accretor for the rest of the ULX population with broadband X-rayobservations, which is currently missing. P13 is currently the only source thatcan provide this link. Our ToO will be triggered by the 12x1 ks Swift monitoringadditionally requested as part of this proposal.
Publications
Discovery of Coherent Pulsations from the Ultraluminous X-Ray Source NGC 7793 P13 |Furst, F., Walton, D. J., et al. | ApJ | 831-14 | 2016 | 2016ApJ...831L..14F | http://ui.adsabs.harvard.edu/#abs/2016ApJ...831L..14F
Super-Eddington accretion on to the neutron star NGC 7793 P13: Broad-band X-ray spectroscopy and ultraluminous X-ray sources |Walton, D. J., Furst, F., et al. | MNRAS | 473-4360 | 2018 | 2018MNRAS.473.4360W | http://ui.adsabs.harvard.edu/#abs/2018MNRAS.473.4360W
NGC 7793 P9: An Ultraluminous X-Ray Source Evolved from a Canonical Black Hole X-Ray Binary |Hu, Chin-Ping, Kong, Albert K. H., et al. | ApJ | 864-64 | 2018 | 2018ApJ...864...64H | http://ui.adsabs.harvard.edu/#abs/2018ApJ...864...64H
A tale of two periods: determination of the orbital ephemeris of the super-Eddington pulsar NGC 7793 P13 |Furst, F., Walton, D. J., et al. | A&A | 616-186 | 2018 | 2018A&A...616A.186F | http://ui.adsabs.harvard.edu/#abs/2018A&A...616A.186F
Long-term pulse period evolution of the ultra-luminous X-ray pulsar NGC 7793 P13 |F\\u00fcrst, F., Walton, D. J., et al. | A&A | 651-75 | 2021 | 2021A&A...651A..75F | http://ui.adsabs.harvard.edu/#abs/2021A&A...651A..75F
Ionized emission and absorption in a large sample of ultraluminous X-ray sources |Kosec, P., Pinto, C., et al. | MNRAS | 508-3569 | 2021 | 2021MNRAS.508.3569K | http://ui.adsabs.harvard.edu/#abs/2021MNRAS.508.3569K
Investigation of the Timing and Spectral Properties of an Ultraluminous X-Ray Pulsar NGC 7793 P13 |Lin, Lupin Chun-Che, Hu, Chin-Ping, et al. | ApJ | 924-65 | 2022 | 2022ApJ...924...65L | http://ui.adsabs.harvard.edu/#abs/2022ApJ...924...65L
The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions |Pan, Zeyang, Qu, Zhijie, et al. | ApJS | 271-62 | 2024 | 2024ApJS..271...62P | http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P
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
2016-05-20T12:17:56Z/2016-05-21T03:01:16Z
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 Dominic Walton, 2017, 'Broadband X-ray Spectroscopy of the Unique ULX P13 in NGC7793', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-6uyp7jo
