A dataset provided by the European Space Agency

Name: Thermal emission from pulsars to constrain the neutron star equation of state
Published: 2017-10-11T22:00:00Z

Proposal ID	078405
Title	Thermal emission from pulsars to constrain the neutron star equation of state
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0784050101
DOI	https://doi.org/10.5270/esa-x6xilep
Principal Investigator, PI	Dr Natalie Webb
Abstract	Several methods exist to measure the masses and the radii of neutron stars andthus constrain the equation of state, but almost 50 years after their discoverythe nature of neutron star matter is still unknown. One way to constrain themass and the radius is to model the X-ray pulse profile of low magnetic fieldmillisecond pulsars (MSPs), showing predominantly thermal emission and with veryprecise mass measurements. However, only four thermally emitting MSPs are knownand just one has a precisely known mass. We request observations of two moreMSPs with precisely known masses, to determine if their spectra are thermal.These MSPs can then be used to constrain the nature of neutron star matter,providing complementary information to laboratory data.
Publications	Thermal X-ray emission identified from the millisecond pulsar PSR J1909-3744 \|Webb N. A. Leahy D. et al. \| A&A \| 627-141 \| 2019 \| 2019A&A...627A.141W \| http://ui.adsabs.harvard.edu/#abs/2019A&A...627A.141W 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 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	2016-09-20T15:08:00Z/2016-09-21T05:28:00Z
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	2017-10-11T22:00:00Z
Last Update	2025-01-27
Keywords	"thermal emission", "neutron stars", "methods exist", "laboratory data", "neutron star matter", "predominantly thermal emission", "complementary information", "neutron star equation", "precise mass measurements", "thermally emitting msps", "xray pulse profile"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Natalie Webb, 2017, 'Thermal emission from pulsars to constrain the neutron star equation of state', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x6xilep