| Proposal ID | 086125 |
| Title | Elemental abundances of LIRG Arp299 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861250101 |
| DOI | https://doi.org/10.57780/esa-425vswr |
| Principal Investigator, PI | Dr Junjie Mao |
| Abstract | Specific abundance patterns are left by distinct chemical enrichment processesduring the formation and evolution of galaxies. We propose to observe theluminous infrared galaxy Arp 299 with a total exposure of 130 ks. The existingRGS spectrum with a short exposure yields rather high Mg/O and Ne/O abundanceratios (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 initialmass function weighted yields at the 1-2 sigma confidence level. Combining thearchival and proposed observations, we can accurately measure the metalabundances. We will explore possible origins of the unusual abundance ratios. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-05-08T20:18:02Z/2020-11-23T00:35:03Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2021-12-15T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "main metal factory", "lirg arp299", "short exposure yields", "specific abundance patterns", "hot atmosphere", "elemental abundance", "abundance ratios", "sigma confidence level", "core collapse supernova", "existing rgs spectrum", "metal abundance", "total exposure" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Junjie Mao, 2021, 'Elemental abundances of LIRG Arp299', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-425vswr |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |