A dataset provided by the European Space Agency

Name: X-ray Spectroscopy of the 11 Minute LMXB 4U1820-30
Published: 2002-12-06T00:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	008411
Title	X-ray Spectroscopy of the 11 Minute LMXB 4U1820-30
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0084110201
DOI	https://doi.org/10.5270/esa-1r2p6up
Principal Investigator, PI	Dr Christopher Mauche
Abstract	The globular cluster LMXB 4U1820-30 consists of a neutron star and a Hedegenerate dwarf in an 11 minute binary. Based on existing Einstein OGS & SSSspectra, ASCA spectra, and an evolutionary model of 4U1820, we argue that theX-ray spectrum of this famous binary is the superposition of a strong continuumand the emission lines and recombination continua of a photoionized plasmawhich is strongly enhanced in light elements. XMM spectroscopy of 4U1820 willconstrain the relative abundances of this plasma and thereby strongly constrainthe evolutionary history the binary. The strengths and widths of the lines andrecombination continua will constrain the plasma emission measure distribution,electron temperature, optical depth, density, and radius of formation within
Publications	XMM-Newton observation of 4U 1820-30. Broad band spectrum and the contribution of the cold interstellar medium \|Costantini E. Pinto C. et al. \| A&A \| 539-32 \| 2012 \| 2012A&A...539A..32C \| http://ui.adsabs.harvard.edu/#abs/2012A&A...539A..32C 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 Interstellar Dust Properties from a Survey of X-Ray Halos \|Valencic Lynne A. Smith Randall K. \| ApJ \| 809-66 \| 2015 \| 2015ApJ...809...66V \| http://ui.adsabs.harvard.edu/#abs/2015ApJ...809...66V Revealing the broad iron Kalpha line in Cygnus X-1 through simultaneous XMM-Newton RXTE and INTEGRAL observations \|Duro Refiz Dauser Thomas et al. \| A&A \| 589-14 \| 2016 \| 2016A&A...589A..14D \| http://ui.adsabs.harvard.edu/#abs/2016A&A...589A..14D 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 Study of Low-mass X-Ray Binaries in the Low-luminosity Regime \|Sonbas E. Dhuga K. S. \| ApJ \| 853-150 \| 2018 \| 2018ApJ...853..150S \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...853..150S The hot interstellar medium towards 4U 1820-30: a Bayesian analysis \|Rogantini D. Costantini E. et al. \| A&A \| 645-98 \| 2021 \| 2021A&A...645A..98R \| http://ui.adsabs.harvard.edu/#abs/2021A&A...645A..98R 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 Properties of Milky Way globular clusters associated with X-ray sources \|Botev Svetoslav Nedialkov Petko \| BlgAJ \| 40-59 \| 2024 \| 2024BlgAJ..40...59B \| http://ui.adsabs.harvard.edu/#abs/2024BlgAJ..40...59B 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, OM, RGS1, RGS2
Temporal Coverage	2001-10-09T09:12:01Z/2001-10-09T20:12:21Z
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	2002-12-06T00:00:00Z
Last Update	2026-07-09
Keywords	"emission lines", "minute lmxb 4u1820", "degenerate dwarf", "XMM", "sss spectra", "xray spectrum", "asca spectra", "famous binary", "plasma emission", "optical depth", "relative abundance", "minute binary", "xmm spectroscopy", "electron temperature", "neutron star", "photoionized plasma", "evolutionary history", "existing einstein ogs", "evolutionary model", "recombination continua", "x ray spectroscopy", "light elements"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Christopher Mauche, 2002, 'X-ray Spectroscopy of the 11 Minute LMXB 4U1820-30', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-1r2p6up
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.