A dataset provided by the European Space Agency

Name: Tracking the Neutron Star ULX NGC 7793 P13 with XMM-Newton to Measure its Orbit
Published: 2020-06-18T22:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	084099
Title	Tracking the Neutron Star ULX NGC 7793 P13 with XMM-Newton to Measure its Orbit
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0840990101
DOI	https://doi.org/10.5270/esa-ahmf4d2
Principal Investigator, PI	Dr Felix Fuerst
Abstract	Following a series of remarkable discoveries, we now know that someultra-luminous X-ray sources (ULXs) are actually powered by apparentlysuper-Eddington neutron star accretors. So far, five such sources have beenidentified through either their pulsations or the discovery of cyclotron lines.NGC 7793 P13 stands out among them as the source with the most easily measurablepulse period and the only ULX pulsar for which the companion star wasclassified. Here we propose two short XMM-Newton observations of P13 tofollow-up on our successful campaign in AO 16 and AO 17, to track the evolutionof the pulse period and to monitor the X- ray spectrum. The timing results willallow us to improve the orbital ephemeris and investigate a possible super-orbital orbital on the order of 1500 d.
Publications	A new candidate pulsating ULX in NGC 7793 \|Quintin E. Webb N. A. et al. \| MNRAS \| 503-5485 \| 2021 \| 2021MNRAS.503.5485Q \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5485Q Long-term pulse period evolution of the ultra-luminous X-ray pulsar NGC 7793 P13 \|Fu00fcrst 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 Research on the Magnetic Field of NGC 7793 P13 and Other Confirmed Pulsating Ultraluminous X-Ray Sources \|Meng Fan-Liang Pan Yuan-Yue \| RAA \| 22-115018 \| 2022 \| 2022RAA....22k5018M \| http://ui.adsabs.harvard.edu/#abs/2022RAA....22k5018M 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 jaxspec: A fast and robust Python library for X-ray spectral fitting \|Dupourquu00e9 S. Barret D. et al. \| A&A \| 690-A317 \| 2024 \| 2024A&A...690A.317D \| http://ui.adsabs.harvard.edu/#abs/2024A&A...690A.317D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2019-05-16T23:02:55Z/2019-05-17T11:57:55Z
Version	21.51_20241115_1113
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.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2020-06-18T22:00:00Z
Last Update	2026-06-19
Keywords	"pulse period", "actually powered", "NGC 7793", "XMM", "xmm newton", "successful campaign", "cyclotron lines", "XMM-Newton", "companion star", "short xmm newton", "orbital ephemeris", "x ray spectrum", "ulx pulsar", "super orbital orbital"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Felix Fuerst, 2020, 'Tracking the Neutron Star ULX NGC 7793 P13 with XMM-Newton to Measure its Orbit', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ahmf4d2
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.