A dataset provided by the European Space Agency

Name: The enigmatic neutron star X-ray binary AX J1754.2-2754
Published: 2012-04-08T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	065145
Title	The enigmatic neutron star X-ray binary AX J1754.2-2754
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651450101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651450201
DOI	https://doi.org/10.5270/esa-76kyxgv
Principal Investigator, PI	Mrs Nathalie Degenaar
Abstract	We propose a single 35 ksec XMM-Newton observation of the very-faint X-raybinary AX J1754.2-2754, an enigmatic neutron star system that is underluminousby orders of magnitude compared to the well-known bright sources. AXJ1754.2-2754 is a candidate ultra-compact X-ray binary and observations withother X-ray satellites suggest that it has an unusually soft spectrum with apowerlaw index of ~3. With our proposed observation we will obtain high-qualitydata of AX J1754.2-2754, which allows for a detailed spectral (e.g., verify itssoftness) and timing study (e.g., search for possible orbital modulations, X-raypulsations and type-I X-ray bursts), which can refine our understanding of thenature of this system.
Publications	Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov V. N. \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch Eric W. \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R 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 New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2011-03-17T10:00:16Z/2011-03-17T23:48:12Z
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	2012-04-08T00:00:00Z
Last Update	2026-07-09
Keywords	"orbital modulations", "powerlaw index", "xray pulsations", "J1754.2", "XMM-Newton", ".", " search", "xray bursts", "soft spectrum", "xray satellites", "quality data", "bright sources", "ax j1754", "XMM", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Mrs Nathalie Degenaar, 2012, 'The enigmatic neutron star X-ray binary AX J1754.2-2754', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-76kyxgv
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.