|Title||Elemental abundances of LIRG Arp299|
|Author||Dr Junjie Mao|
|Description||Specific abundance patterns are left by distinct chemical enrichment processes during the formation and evolution of galaxies. We propose to observe the luminous infrared galaxy Arp 299 with a total exposure of 130 ks. The existing RGS spectrum with a short exposure yields rather high Mg-O and Ne-O abundance ratios (with large uncertainties) in the hot atmosphere of the host galaxy. Core-collapse supernovae are the main metal factory of these elements. Nonetheless, the observed abundance ratios are in tension with various initial mass function weighted yields at the 1-2 sigma confidence level. Combining the archival and proposed observations, we can accurately measure the metal abundances. We will explore possible origins of the unusual abundance ratios.|
|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, 2021-12-15T00:00:00Z, 086125, 18.02_20200221_1200. https://doi.org/10.5270/esa-[xxxxxxx]|