|Title||Mass and Environment of a Low-Redshift Gravitational Lens Galaxy|
|Author||Dr Russell Smith|
|Description||We propose EPIC and Optical-UV Monitor observations of the low-redshift strong-lensing elliptical galaxy ESO325--G004, and its surrounding group Abell S0740. The principal aims of the observation are (1) to test for the presence of extended intra-group gas; (2) to measure a gas temperature for both the central galaxy component and the intra-group medium. The X-ray results will help to establish the contribution of the group potential to the lensing mass, and complement lensing and dynamical mass estimates for the system at smaller radii. Simultaneous UV imaging with the OM will exploit the colour contrast against the red lens galaxy, to constrain the properties of the star-forming background source.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|Mission Description||The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2008-03-06T00:00:00Z, 040600, 17.56_20190403_1200. https://doi.org/10.5270/esa-74zn12f|