A dataset provided by the European Space Agency

Name: Identifying the companions of chemically peculiar red giants
Published: 2017-02-15T23:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	076172
Title	Identifying the companions of chemically peculiar red giants
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0761720101
DOI	https://doi.org/10.5270/esa-urm6jhs
Principal Investigator, PI	Dr Gerardo Luna
Abstract	Although the peculiar surface abundances of Tc-poor S stars in six symbioticsbinaries suggest that the compact object should be a white dwarf, the X-rayspectrum from at least one member of this class points to the presence of aneutron star. For that object, the X-ray spectrum can be modeled as dueComptonized black-body emission with the seed-photons coming from the neutronstar. To determine if chemically peculiar symbiotics host a white dwarf or aneutron star, we propose to obtain XMM-Newton X-ray spectra of four suchsymbiotics. This proposal has implications for our understanding of the originof polluted atmospheres and of binary stellar evolution.
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-rays and TESS observations of symbiotic binary stars \|Lima I. J. Luna G. J. M. et al. \| BAAA \| 64-59 \| 2023 \| 2023BAAA...64...59L \| http://ui.adsabs.harvard.edu/#abs/2023BAAA...64...59L 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 Symbiotic stars in X-rays: IV. XMM-Newton Swift and TESS observations \|Lima I. J. Luna G. J. M. et al. \| A&A \| 689-A86 \| 2024 \| 2024A&A...689A..86L \| http://ui.adsabs.harvard.edu/#abs/2024A&A...689A..86L 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, EPN, OM, RGS1, RGS2
Temporal Coverage	2016-01-27T21:27:48Z/2016-01-28T17:11:08Z
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	2017-02-15T23:00:00Z
Last Update	2026-07-09
Keywords	"symbiotics binary", "neutron star", "white dwarf", "XMM-Newton", "surface abundance", "polluted atmosphere", "XMM", "xray spectrum", "binary stellar evolution", "seed photons", "red giants", "compact object"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Gerardo Luna, 2017, 'Identifying the companions of chemically peculiar red giants', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-urm6jhs
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.