Proposal ID | 083044 |
Title | A MEASUREMENT OF THE 0.3-30 KEV SPECTRUM OF THE LOW-METALLICITY GALAXY VV114 |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0830440101 |
DOI | https://doi.org/10.5270/esa-8calr5r |
Principal Investigator, PI | Dr Bret Lehmer |
Abstract | We propose for a 30 ks XMM and 200 ks NuSTAR observation of VV114, a uniquelow-metallicity galaxy (0.3 Zsol), with high-SFR (SFR = 38 Msol/yr). We willmeasure ho the shape and normalization of the 0.3-30 keV spectral energydistribution of VV114 compares with more typical solar-metallicity galaxies inthe nearby Universe that have SEDs characterized by NuSTAR (e.g., M83, NGC 253,NGC 3256, and NGC 3310). Our observations will provide an important benchmarkfor how the X-ray SED varies with metallicity, and thus how the X-ray SEDs ofgalaxies are expected to vary with redshift. This will allow for more informedbandpass and bolometric corrections to high-redshift galaxy studies andpopulation synthesis models, and will inform studies of X-ray heating of the early Universe IGM. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2019-01-10T17:17:08Z/2019-01-11T02:27:08Z |
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 | 2020-01-29T23:00:00Z |
Last Update | 2025-01-27 |
Keywords | "xray seds", "redshift galaxy", "xray heating", "seds characterized", "universe igm", "ngc 253", "NGC 253", "M83", " m83", "vv114 compares", "ngc 3256", "sfr sfr", "ngc 3310", "NuSTAR", "xray sed varies", "kev spectrum", "nearby universe", "bolometric corrections", "low metallicity galaxy", "population synthesis models", ".", "XMM", "informed bandpass" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Bret Lehmer, 2020, 'A MEASUREMENT OF THE 0.3-30 KEV SPECTRUM OF THE LOW-METALLICITY GALAXY VV114', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8calr5r |