| Proposal ID | 040284 |
| Title | X-ray Emission from FU Orionis Stars in Cygnus |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402840101 |
| DOI | https://doi.org/10.5270/esa-pp5pxvc |
| Principal Investigator, PI | Dr Stephen Skinner |
| Abstract | FU Orionis objects (FUors) are young low-mass pre-main sequence (PMS) stars thatare undergoing accretion at maximum rates 10e-4 solar masses per year. ClassicalFUors have all experienced optical outbursts attributed to a sudden increase inthe disk accretion rate. Very little is known about the X-ray properties ofthese unusual stars. We initiated a X-ray survey of FUors with XMM-Newton inAO-3 and the prototype FU Ori has been detected. Its X-ray spectrum is veryunusual compared to what is typically observed in PMS stars. We propose here tocomplete our X-ray survey of FU Ors. These observations will allow us to definethe X-ray properties of the class and will serve as a valuable historicalreference if any of our targets undergoes a future outburst. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-07-22T14:26:46Z/2006-10-22T10:47:03Z |
| 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 | 2007-11-23T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "classical fuors", "disk accretion rate", "XMM-Newton", "fu orionis stars", "solar masses", "valuable historical reference", "pms stars", "xray properties", "future outburst", "XMM", "maximum rates 10e", "x ray emission", "xray survey", "prototype fu ori", "xray spectrum", "targets undergoes", "fu ors", "xmm newton" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Stephen Skinner, 2007, 'X-ray Emission from FU Orionis Stars in Cygnus', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-pp5pxvc |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |