A dataset provided by the European Space Agency

Proposal ID 060095
Title Building Dust Grain Models for Different ISM Environments
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0600950101

DOI https://doi.org/10.5270/esa-u2l965g
Principal Investigator, PI Dr Lynne Valencic
Abstract Interstellar dust is a vital component of Galactic evolution, crucial to formingobjects as small as H2 and as large as stars. Despite this, relatively little isknown about the grains nature. Current grain models of the standard diffuse ISM, based on constraints from the NIR-UV regimes and assumed cosmic elementalabundances, cannot be applied to X-ray observations. New grain models that areconstrained by data in the full NIR-UV-X-ray bandpasses, over a broad range ofdust environments, are needed. X-ray dust halos from absorbed sources observedwith XMM-Newton/EPIC are an excellent diagnostic of grain characteristics thatcan be used in conjunction with NIR-UV data to forge a comprehensive, realisticgrain model that spans these regimes in both the dense and diffuse ISM.
Publications
Instrument EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage 2009-09-01T01:55:24Z/2009-09-01T16:12:22Z
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 2010-09-12T00:00:00Z
Keywords "galactic evolution", "relatively little", "diffuse ism", "broad range", "XMM-Newton", "ism environments", "vital component", "xmm newton", "interstellar dust", "xray dust halos", "forming objects", "nir uv data", "grain characteristics", "XMM", "dust environments", "nir uv regimes", "EPIC", "cosmic elemental abundance", "grain models", "standard diffuse ism", "realistic grain model", "absorbed sources"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Lynne Valencic, 2010, 'Building Dust Grain Models for Different ISM Environments', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-u2l965g