We propose to observe the bright low-mass X-ray binary 4U 1735-444 withXMM-Newton RGS for 80 ks. We will obtain a high quality spectrum with severalstrong features due to the interstellar medium (ISM) in the line of sight ofthis source. The high resolution, large effective area and broad band coverageof RGS will allow us to resolve absorption structures from neutral and ionizedspecies of C, N, O, Fe, Ne and Mg. Our proposed observation will provide thebest simultaneous analysis of the ISM Fe and O so far. The collisional- orphoto-ionized nature of the warm and hot ionized phases of the ISM will beconstrained. The identification of interstellar minerals will determine the ISMcomposition and abundances, which are r^ant for the star formation.
Instrument
EPN, OM, RGS1, RGS2
Temporal Coverage
2013-04-01T06:27:58Z/2013-04-02T06:04:38Z
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, Mr Ciro Pinto, 2014, 'PROBING INTERSTELLAR DUST THROUGH HIGH-RESOLUTION X-RAY SPECTROSCOPY', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4fakst8
