A dataset provided by the European Space Agency

Name: Sculptor and Sextans dwarf spheriodal galaxies
Published: 2020-12-31T23:00:00Z

Proposal ID	084443
Title	Sculptor and Sextans dwarf spheriodal galaxies
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0844430101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0844430201
DOI	https://doi.org/10.57780/esa-4dg6183
Principal Investigator, PI	Dr Sara Saeedi
Abstract	Recent studies of the Draco dwarf spheroidal galaxy(dSph) using XMM-Newtonobservations show that the X-ray source population is dominated by accretingwhite dwarfs(AWDs).(Saeedi et al, submitted A\A, 2018; A\A 2016; MNRAS, 2018).Among the dSphs, which are satellites of the Milky Way, there are only twodSphs, which have similar distances to the distance of the Draco dSph, butnoticeable higher stellar masses. Sculptor dSph (M =2.3 106 M ) and the SextansdSph (M =0.44 106 M ) with the distances of 90 kpc, have been never observed byXMM-Newton. We propose to observe these two dSphs for the first time, mainly inorder 1) to perform the multi-wavelength study of X-ray sources aimingclassification and study of AWDs. 2) to compare the population of AWDs of different dSphs.
Publications	XMM-Newton study of the Sculptor dwarf spheroidal galaxy \|Saeedi, Sara, Sasaki, Manami, \| MNRAS \| 512-5481 \| 2022 \| 2022MNRAS.512.5481S \| http://ui.adsabs.harvard.edu/#abs/2022MNRAS.512.5481S 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
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2019-06-03T15:41:29Z/2019-11-28T10:52:07Z
Version	18.00_20191217_1110
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	2020-12-31T23:00:00Z
Keywords	"draco dsph", "XMM", "multi wavelength", "xray source population", "stellar masses", "sextans dsph", "XMM-Newton", "accreting white dwarfsawds", "sculptor dsph", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Sara Saeedi, 2020, 'Sculptor and Sextans dwarf spheriodal galaxies', 18.00_20191217_1110, European Space Agency, https://doi.org/10.57780/esa-4dg6183