A dataset provided by the European Space Agency

Name: Probing the high-energy properties of very early-type stars in the cluster HM1
Published: 2011-04-03T00:00:00Z

Proposal ID	060008
Title	Probing the high-energy properties of very early-type stars in the cluster HM1
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0600080101
DOI	https://doi.org/10.5270/esa-xd87814
Principal Investigator, PI	Dr Yael Naze
Abstract	So far, little information has been gathered on the X-ray emission of theearliest O-type stars. To probe their high-energy properties, we propose toobserve the young cluster HM1 for the first time in the X-ray domain. Due to itshigh extinction, this object is notoriously difficult to observe at otherwavelengths and it has thus been poorly studied up to now. However, observingHM1 provides access to 5 very early O stars, 2 WRs, and about 20 late O/early Bobjects. HM1 therefore allows a study of the L_X-L_{BOL} relation of theearliest spectral types and constitutes a unique probe into the X-ray emissionof WN stars and early O stars. In addition, new magnetic or colliding windobjects will be detected, as well as part of the PMS population of HM1.
Publications	X-ray properties of the young open clusters HM1 and IC 2944/2948 \|Naze, Y., Rauw, G., et al. \| A&A \| 555-83 \| 2013 \| 2013A&A...555A..83N \| http://ui.adsabs.harvard.edu/#abs/2013A&A...555A..83N 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 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 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 Fundamental parameters of the massive eclipsing binary HM1 8 \|Rodr\\u00edguez, C. N., Ferrero, G. A., et al. \| MNRAS \| 508-2179 \| 2021 \| 2021MNRAS.508.2179R \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.508.2179R 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	2010-03-10T01:14:06Z/2010-03-10T08:42:43Z
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	2011-04-03T00:00:00Z
Keywords	"little information", "cluster hm1", "colliding wind objects", "xray domain", "bol }$ relation", "earliest spectral types", "l_x l_", "wn stars", "xray emission", "pms population", "energy properties", "type stars", "notoriously difficult"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Yael Naze, 2011, 'Probing the high-energy properties of very early-type stars in the cluster HM1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xd87814