A dataset provided by the European Space Agency

Name: The X-ray Halo and Spectrum of the Unusual O Star HD148937
Published: 2002-06-10T00:00:00Z

Proposal ID	002214
Title	The X-ray Halo and Spectrum of the Unusual O Star HD148937
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0022140101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0022140501 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0022140601
DOI	https://doi.org/10.5270/esa-bx9u9g9
Principal Investigator, PI	Dr Randall Smith
Abstract	We propose to observe the O star HD148937 for 30 ksec to measure both the X-rayhalo formed by dust scattering, as well as the spectrum of the star itself. TheX-ray halo measures the size and composition of large dust grains, which havemost of the mass that is in dust, but are difficult to observe at other wave-lengths. HD148937, unlike most halo sources, has emission lines, and we can usethese to image the halo in narrow energy bands. The spectrum of HD148937 will bemeasured by the XMM RGS with over 6000 counts, enough to detect absorption anddoppler shifts of strong lines. HD148937 is an unusual O star, 20 times brighterthan the average O star with a harder spectrum. This will test current models ofO star winds, which have difficulty creating even the average luminosity.
Publications	HD 148937: A Multiwavelength Study of the Third Galactic Member of the Of?p Class \|Naze, Yael, Walborn, Nolan R., et al. \| AJ \| 135-1946 \| 2008 \| 2008AJ....135.1946N \| http://ui.adsabs.harvard.edu/#abs/2008AJ....135.1946N The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue \|Watson, M. G., Schroder, A. C., et al. \| A&A \| 493-339 \| 2009 \| 2009A&A...493..339W \| http://ui.adsabs.harvard.edu/#abs/2009A&A...493..339W Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras \|Mateos, S., Saxton, R. D., et al. \| A&A \| 496-879 \| 2009 \| 2009A&A...496..879M \| http://ui.adsabs.harvard.edu/#abs/2009A&A...496..879M High-resolution X-Ray Spectroscopy of the Magnetic Of?p Star HD 148937 \|Naze, Yael, Zhekov, Svetozar A., \| ApJ \| 746-142 \| 2012 \| 2012ApJ...746..142N \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...746..142N The XMM Cluster Survey: optical analysis methodology and the first data release \|Mehrtens, Nicola, Romer, A. Kathy, et al. \| MNRAS \| 423-1024 \| 2012 \| 2012MNRAS.423.1024M \| http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.1024M XMM-Newton data processing for faint diffuse emission. Proton flares, exposure maps and report on EPIC MOS1 bright CCDs contamination \|Pradas, J., Kerp, J., \| A&A \| 443-721 \| 2005 \| 2005A&A...443..721P \| http://ui.adsabs.harvard.edu/#abs/2005A&A...443..721P The XMM-Newton EPIC background and the production of background blank sky event files \|Carter, J. A., Read, A. M., \| A&A \| 464-1155 \| 2007 \| 2007A&A...464.1155C \| http://ui.adsabs.harvard.edu/#abs/2007A&A...464.1155C A Search for New Galactic Magnetars in Archival Chandra and XMM-Newton Observations \|Muno, M. P., Gaensler, B. M., et al. \| ApJ \| 680-639 \| 2008 \| 2008ApJ...680..639M \| http://ui.adsabs.harvard.edu/#abs/2008ApJ...680..639M The Galactic plane at faint X-ray fluxes - I. Properties and characteristics of the X-ray source population \|Warwick, R. S., Perez-Ramirez, D., \| MNRAS \| 413-595 \| 2011 \| 2011MNRAS.413..595W \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.413..595W An All-Sky Atlas of Radio/X-ray Associations \|Flesch, E., \| PASA \| 27-283 \| 2010 \| 2010PASA...27..283F \| http://ui.adsabs.harvard.edu/#abs/2010PASA...27..283F Mining for normal galaxies in the first XMM-Newton Serendipitous Source Catalog \|Georgakakis, A. E., Chavushyan, V., et al. \| MNRAS \| 367-1017 \| 2006 \| 2006MNRAS.367.1017G \| http://ui.adsabs.harvard.edu/#abs/2006MNRAS.367.1017G The XMM Cluster Survey: X-ray analysis methodology \|Lloyd-Davies, E. J., Romer, A. Kathy, et al. \| MNRAS \| 418-14 \| 2011 \| 2011MNRAS.418...14L \| http://ui.adsabs.harvard.edu/#abs/2011MNRAS.418...14L Exospheric solar wind charge exchange as seen by XMM-Newton \|Carter, J. A., Semba, S., \| AN \| 333-313 \| 2012 \| 2012AN....333..313C \| http://ui.adsabs.harvard.edu/#abs/2012AN....333..313C Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog \|Lin, Dacheng, Webb, Natalie A., \| ApJ \| 756-27 \| 2012 \| 2012ApJ...756...27L \| http://ui.adsabs.harvard.edu/#abs/2012ApJ...756...27L Hot stars observed by XMM-Newton. I. The catalog and the properties of OB stars \|Naze, Y., \| A&A \| 506-1055 \| 2009 \| 2009A&A...506.1055N \| http://ui.adsabs.harvard.edu/#abs/2009A&A...506.1055N The XMM-Newton serendipitous source catalogue \|Watson, M. G., Pye, J. P., et al. \| AN \| 324-89 \| 2003 \| 2003AN....324...89W \| http://ui.adsabs.harvard.edu/#abs/2003AN....324...89W The diversity of quasars unified by accretion and orientation \|Shen, Yue, Ho, Luis C., \| Natur \| 513-210 \| 2014 \| 2014Natur.513..210S \| http://ui.adsabs.harvard.edu/#abs/2014Natur.513..210S X-Ray Emission from Magnetic Massive Stars \|Naze, Yael, Petit, Veronique, et al. \| ApJS \| 215-10 \| 2014 \| 2014ApJS..215...10N \| http://ui.adsabs.harvard.edu/#abs/2014ApJS..215...10N Sunyaev-Zel.dovich effect or not? Detecting the main foreground effect of most galaxy clusters \|Xiao, Weike, Chen, Chen, et al. \| MNRAS \| 432-41 \| 2013 \| 2013MNRAS.432L..41X \| http://ui.adsabs.harvard.edu/#abs/2013MNRAS.432L..41X 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 Anisotropy of the galaxy cluster X-ray luminosity-temperature relation \|Migkas, Konstantinos, Reiprich, Thomas H., \| A&A \| 611-50 \| 2018 \| 2018A&A...611A..50M \| http://ui.adsabs.harvard.edu/#abs/2018A&A...611A..50M The XMM Cluster Survey: Present status and latest results \|Viana, P. T. P., Mehrtens, N., et al. \| AN \| 334-462 \| 2013 \| 2013AN....334..462V \| http://ui.adsabs.harvard.edu/#abs/2013AN....334..462V Analysis of the X-ray emission of OB stars: O stars \|Ryspaeva, Elizaveta, Kholtygin, Alexander, \| RAA \| 18-104 \| 2018 \| 2018RAA....18..104R \| http://ui.adsabs.harvard.edu/#abs/2018RAA....18..104R Testing emergent gravity on galaxy cluster scales \|Tamosiunas, Andrius, Bacon, David, et al. \| JCAP \| 5-53 \| 2019 \| 2019JCAP...05..053T \| http://ui.adsabs.harvard.edu/#abs/2019JCAP...05..053T Chandra Follow-up of the SDSS DR8 Redmapper Catalog Using the MATCha Pipeline \|Hollowood, Devon L., Jeltema, Tesla, et al. \| ApJS \| 244-22 \| 2019 \| 2019ApJS..244...22H \| http://ui.adsabs.harvard.edu/#abs/2019ApJS..244...22H Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters \|Palmese, A., Annis, J., et al. \| MNRAS \| 493-4591 \| 2020 \| 2020MNRAS.493.4591P \| http://ui.adsabs.harvard.edu/#abs/2020MNRAS.493.4591P 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 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	2001-02-25T10:29:18Z/2001-02-25T22:07:08Z
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	2002-06-10T00:00:00Z
Keywords	"xray halo measures", "wave lengths", "average luminosity", "star winds", "6000 counts", "XMM", "xray halo formed", "halo sources", "emission lines", "xmm rgs", "narrow energy bands", "difficulty creating", "dust scattering", "harder spectrum", "HD148937", "dust grains", "doppler shifts", "xray halo"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Randall Smith, 2002, 'The X-ray Halo and Spectrum of the Unusual O Star HD148937', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-bx9u9g9