| Proposal ID | 076346 |
| Title | Characterizing the high-energy irradiation of four hot Neptunes |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0763460201 |
| DOI | https://doi.org/10.5270/esa-2m2mhs1 |
| Principal Investigator, PI | Mr Michael Salz |
| Abstract | We propose to measure the high-energy irradiation of four hot Neptunes in thesolar neighborhood to determine the planetary mass loss rates. Strongirradiation of gas planets in close proximity to their host stars powers aplanetary wind. Small planets are heavily affected by the mass loss and couldeventually lose their gaseous envelopes. Our targets are among the mostpromising candidates in the search for winds of hot gas planets. We will use theX-ray luminosities to derive the total high-energy emission of the host star,which provides an estimate for the planetary mass loss rate. Thus, we candetermine the impact of photoevaporation on the evolution of these small gasplanets. The observations refine the prospects for characterizing the planetary atmospheres via transit spectroscopy. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-04-15T02:31:27Z/2015-08-15T00:04:51Z |
| Version | 17.56_20190403_1200 |
| 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 | 2016-09-07T22:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "gas planets", "planetary wind", "stars powers", "solar neighborhood", "promising candidates", "gaseous envelopes", "mass loss", "close proximity", "heavily affected", "energy emission", "hot gas planets", "xray luminosities", "hot neptunes", "energy irradiation" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Michael Salz, 2016, 'Characterizing the high-energy irradiation of four hot Neptunes', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2m2mhs1 |