VIIZw403 is one of the nearest blue compact dwarf galaxies with extremely lowmetallicity of 1/22-1/15 solar. We found a point-like source about 0.3 arcminapart from the center of the galaxy in the Chandra archived data. Emission lineof Oxygen is clearly visible in the X-ray spectrum of the source, indicating thethermal emission from hot optically thin plasma. The X-ray luminosity ofLxvirgul10e38 erg/s, much higher than typical galactic SNRs, pauses a question on itsnature. We will obtain high quality X-ray spectrum with the XMM-Newton. Metalabundance determined in the observation will illustrate the origin of hot gas ingalaxies, in its simplified case.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2004-10-07T02:23:40Z/2004-10-07T15:26:08Z
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 KIYOSHI HAYASHIDA, 2005, 'BLUE COMPACT DWARF GALAXY VIIZW403', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1kt0j8t
