A dataset provided by the European Space Agency

Name: Finding Missing Baryons in a Massive Isolated Elliptical Galaxy
Published: 2016-08-07T22:00:00Z

Proposal ID	076222
Title	Finding Missing Baryons in a Massive Isolated Elliptical Galaxy
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0762220101
DOI	https://doi.org/10.5270/esa-8q2djko
Principal Investigator, PI	Prof David Buote
Abstract	A key outstanding question in galaxy formation is whether ~1e12 Msun galaxieslike the Milky-Way (MW) are able to retain their cosmic baryon fraction, and, ifso, where and in what form are these baryons located? While the location ofthese Missing Baryons has been studied inconclusively so far in diskgalaxies there is recent evidence that some MW-size elliptical galaxies maypossess the cosmic baryon fraction within their virial radii. We propose an XMMobservation of the massive, isolated elliptical galaxy NGC 953, the most X-raybright and luminous of a sample of 11 isolated ellipticals whose existingChandra data indicate r_2500 fits entirely within the central MOS CCDs. Ourproposed 140ks exposure will constrain the global baryon to +/- 10% in a MW-size elliptical galaxy.
Publications	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 X-ray shapes of elliptical galaxies and implications for self-interacting dark matter \|McDaniel A. Jeltema T. \| JCAP \| 5-20 \| 2021 \| 2021JCAP...05..020M \| http://ui.adsabs.harvard.edu/#abs/2021JCAP...05..020M 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	2015-07-24T04:37:09Z/2015-07-25T11:58:49Z
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	2016-08-07T22:00:00Z
Last Update	2025-01-27
Keywords	"140 exposure", "1e12 msun galaxy", "central mos ccds", "baryons located", "galaxy formation", "NGC 953", "virial radii", "xray bright", "disk galaxy", "isolated ellipticals", "r_2500 fits", "XMM", "cosmic baryon fraction", "finding missing baryons", "existing chandra data", "global baryon"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof David Buote, 2016, 'Finding Missing Baryons in a Massive Isolated Elliptical Galaxy', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8q2djko