| Name | 089201 |
| Title | An HST exclusive look at two rising stars: high-energy spectra of the two closes |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0892010101 |
| DOI | https://doi.org/10.57780/esa-hnkh14a |
| Author | European Space Agency |
| Description | As we build towards robustly detecting and characterizing the atmospheres of terrestrial exoplanets with JWST, we cannot forget to take a close look at the low-mass stars they orbit. Complete coverage of M dwarf ultraviolet spectra are needed to determine the photochemical production rates of molecular species in terrestrial planet atmospheres, which will alert us to when disequilibrium chemistry, a sign of surface processes or even life, is present. High-energy spectra from the UV to X-ray are also needed to calculate mass loss rates from planetary atmospheres, which can explain the lack of atmospheres around highly-irradiated terrestrial worlds. LTT 1445Ab and GJ 486b are two of the most spectroscopically accessible terrestrial exoplanets. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-12-23T01:56:49Z/2021-12-23T12:04:09Z |
| Version | 19.16_20210326_1200 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2023-01-14T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, An Hst Exclusive Look At Two Rising Stars: High-Energy Spectra Of The Two Closes, 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-hnkh14a |