| Proposal ID | 088206 |
| Title | HERA: High-Energy Radiation from Accretion in young stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0882060301 |
| DOI | https://doi.org/10.57780/esa-lkhs738 |
| Principal Investigator, PI | Dr Christian Schneider |
| Abstract | Accretion in young, low-mass stars causes emission from X-ray to NIRwavelengths. The UV emission component of protostellar accretion will be studiedby the HST DDT legacy program ULLYSES in a once-in-a-generation investment ofHST resources. However, most of the accretion-powered emission, including the UVregime, is reprocessed X-ray radiation from the immediate post-shock emission.Therefore, we propose simultaneous XMM-Newton RGS spectroscopy accompanying theULLYSES monitoring targets (3 stars, 5 epochs each). This will allow us, for thefirst time, to directly identify physically related phenomena through theirshared variability and to decipher the physics of accretion throughline-resolved spectroscopy at X-ray and UV wavelengths. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-08-11T06:13:22Z/2021-09-08T03:59:21Z |
| 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 | 2022-10-02T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "reprocessed xray radiation", "XMM-Newton", "accretion powered emission", "XMM", "generation investment", "protostellar accretion", "hst ddt", "program ullyses", "line resolved spectroscopy", "hst resources", "physically related phenomena", "shared variability", "HST", "energy radiation", "nir wavelengths", "uv wavelengths", "uv regime", "post shock emission", "uv emission component" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Christian Schneider, 2022, 'HERA: High-Energy Radiation from Accretion in young stars', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-lkhs738 |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |