| Proposal ID | 081022 |
| Title | Inner Disk Structure and Transport Mechanisms in the Transitional Disk around T |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0810220101 |
| DOI | https://doi.org/10.5270/esa-8kxpjqk |
| Principal Investigator, PI | Dr Alexander Brown |
| Abstract | To better understand how Earth-like planets form around low-mass stars, wepropose to study the UV (HST), X-ray (XMM), and optical (LCOGT) variability ofthe young star T Cha. Changing sight lines through the disk allow measurement ofthe temperature and column density, and the physical properties of the dustgrains, as well as determining the gas-to-dust ratio. Three 5 orbit visits,separated by 3-7 days, are required for use of analysis techniques comprisingboth differential pair-method comparison of spectra with differing A_v anddetailed spectral fitting of gas absorption features at each epoch. The innerdisk of T Cha allows study of the gas and dust structure in the terrestrialplanet formation zone during this important rapid phase of protoplanetary disk evolution. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-02-22T03:38:26Z/2018-03-02T07:30:36Z |
| 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 | 2019-03-27T23:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "changing sight lines", "XMM", "uv hst", "low mass stars", "inner disk structure", "cha allows", "spectral fitting", "pair method", "physical properties", "rapid phase", "differing a_v", "dust structure", "dust ratio", "protoplanetary disk evolution", "column density", "planets form", "gas absorption", "xray xmm", "HST", "analysis techniques comprising", "orbit visits", "inner disk", "transitional disk", "dust grains", "optical lcogt variability", "transport mechanisms" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Alexander Brown, 2019, 'Inner Disk Structure and Transport Mechanisms in the Transitional Disk around T', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-8kxpjqk |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |