A dataset provided by the European Space Agency

Name 088287
Title The X-ray Spectra of Young, Active Stars Hosting Small Planets


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, Mr Michael Zhang, 2022, 088287, 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-j9gffce