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.
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.
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
