A dataset provided by the European Space Agency

Name: Crust cooling of the neutron star in EXO 0748-676
Published: 2019-05-23T22:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	082442
Title	Crust cooling of the neutron star in EXO 0748-676
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824420101
DOI	https://doi.org/10.5270/esa-3hlexqc
Principal Investigator, PI	Ms Aastha Parikh
Abstract	We propose a 70 ksec observation of the neutron-star transient low-mass X-raybinary EXO 0748- 676. Neutron-star crusts provide the unique opportunity tostudy the extreme conditions introduced by very high density matter. The densityin a neutron-star crust increases by eight orders of magnitude over only ~1 km,from ~1e6 g/cm3 at the surface to ~1e14 g/cm3 at the crust-core boundary.Accretion outbursts can heat neutron-star crusts which cool once the outburstceases. Monitoring this cooling evolution provides an insight into theproperties of the neutron-star crusts. Heat from deep in the crust propagates tothe surface on time scales of about a decade, thus our requested observation,~10 yr after the end of outburst, will enable us to study the property of very dense matter (~1e12-1e14 g/cm^3 ).
Publications	Unexpected late-time temperature increase observed in the two neutron star crust-cooling sources XTE J1701-462 and EXO 0748-676 \|Parikh A. S. Wijnands R. et al. \| A&A \| 638-2 \| 2020 \| 2020A&A...638L...2P \| http://ui.adsabs.harvard.edu/#abs/2020A&A...638L...2P UV and X-ray observations of the neutron star LMXB EXO 0748-676 in its quiescent state \|Parikh A. S. Degenaar N. et al. \| MNRAS \| 501-1453 \| 2021 \| 2021MNRAS.501.1453P \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.501.1453P Erratum: UV and X-ray observations of the neutron star LMXB EXO 0748-676 in its quiescent state \|Parikh A. S. Degenaar N. et al. \| MNRAS \| 502-2826 \| 2021 \| 2021MNRAS.502.2826P \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.502.2826P 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2018-05-02T08:09:18Z/2018-05-03T06:05:58Z
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	2019-05-23T22:00:00Z
Last Update	2026-07-09
Keywords	"neutron star crusts", "accretion outburst", "neutron star", "density matter", "crust cooling", "dense matter", "cooling evolution", "exo 0748 676", "crust propagates", "1e12 1e14", "outburst ceases", "time scales", "conditions introduced", "crust core boundary"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Ms Aastha Parikh, 2019, 'Crust cooling of the neutron star in EXO 0748-676', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-3hlexqc
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.