A dataset provided by the European Space Agency

Name: Two candidates radio-quiet millisecond pulsars in Fermi unassociated sources
Published: 2015-06-27T22:00:00Z

Proposal ID	074293
Title	Two candidates radio-quiet millisecond pulsars in Fermi unassociated sources
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0742930101
DOI	https://doi.org/10.5270/esa-4ismfq9
Principal Investigator, PI	Dr Fabio Acero
Abstract	Multi-wavelength observations have been the key to identifying the manyunassociated gamma-ray sources detected by the Fermi-LAT telescope. In two ofthe top ten brightest Fermi sources that remain unassociated, opticalobservations of their error ellipses have revealed variable stars eachcoincident with an X-ray source detected by Swift. In both cases, a putativebinary orbital period of has been identified from the optical variability,indicating that these are candidate millisecond pulsars (MSPs) that may be thecounterparts to the bright gamma-ray sources. However, unlike all previousgamma-ray MSPs detected by Fermi, there is no indication of radio emission fromeither source.
Publications	Discovery of an X-Ray-emitting Contact Binary System 2MASS J11201034-2201340 \|Hu, Chin-Ping, Yang, Ting-Chang, et al. \| AJ \| 151-170 \| 2016 \| 2016AJ....151..170H \| http://ui.adsabs.harvard.edu/#abs/2016AJ....151..170H 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 A multiwavelength investigation of candidate millisecond pulsars in unassociated gamma-ray sources \|Salvetti, D., Mignani, R. P., et al. \| MNRAS \| 470-466 \| 2017 \| 2017MNRAS.470..466S \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.470..466S Identification of candidate millisecond pulsars from Fermi LAT observations II \|Dai, Xue-Jie, Wang, Zhong-Xiang, et al. \| RAA \| 17-72 \| 2017 \| 2017RAA....17...72D \| http://ui.adsabs.harvard.edu/#abs/2017RAA....17...72D 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 4FGL J1120.0-2204: A Unique Gamma-Ray-bright Neutron Star Binary with an Extremely Low-mass Proto-white Dwarf \|Swihart, Samuel J., Strader, Jay, et al. \| ApJ \| 926-201 \| 2022 \| 2022ApJ...926..201S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...926..201S 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 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2014-06-14T19:11:12Z/2014-06-15T15:37:52Z
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.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2015-06-27T22:00:00Z
Keywords	"fermi unassociated sources", "fermi lat telescope", "multi wavelength", "binary orbital period", "error ellipses", "xray source", "gamma ray msps", "optical variability", "variable stars", "radio emission"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Fabio Acero, 2015, 'Two candidates radio-quiet millisecond pulsars in Fermi unassociated sources', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4ismfq9