| Name | 088287 |
| Title | The X-ray Spectra of Young, Active Stars Hosting Small Planets |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0882870101 |
| DOI | https://doi.org/10.57780/esa-j9gffce |
| Author | Mr Michael Zhang |
| Description | Photoevaporative mass loss is key to sculpting the properties of short period transiting exoplanets, yet current models have large uncertainties. One of the biggest sources of uncertainty is the high-energy (X-ray and extreme UV) spectrum of the star. Stellar EUV cannot be measured due to interstellar absorption, and must be inferred from the X-ray luminosity. We propose a survey to measure the X-ray spectra of four young, active stars hosting small (< 3.5 R_Earth) planets. This regime is the most critical for understanding exoplanet demographics, and our targets are the most observationally favorable for detecting exospheric absorption. The spectra measured by XMM-Newton will be crucial in understanding photoevaporation from these exceptional planets. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-03-26T19:59:12Z/2021-08-23T07:31:45Z |
| 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 | 2022-09-21T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2022-09-21T00:00:00Z, 088287, 19.16_20210326_1200. https://doi.org/10.57780/esa-j9gffce |