We propose a 40ks XMM observation of the X-ray bright elliptical galaxy, NGC7619. The X-ray tail in NGC 7619 provides a rare opportunity to directlyinvestigate density inhomogeneity in the hot ISM. With detailed information ofclumpy substructures in the dynamically disturbed hot ISM, we will addressinhomogeneous cooling which may similarly take place within the cooling regionnear the center of the cooling flow. We will determine metal abundance and itsvariation between the dense clumps and diffuse gas, and will test the hypothesisof extreme metallicity variation. Because the X-ray emission in the X-ray tailis free from the contribution of LMXB and AGN, the interpretation of X-ray dataand hence abundance measurement is less complex than in the cooling core.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2003-12-16T06:54:34Z/2003-12-16T18:21:27Z
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 Dong-Woo Kim, 2005, 'Density Inhomogeneity in the X-ray Tail of NGC 7619', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-d6ju318
