A dataset provided by the European Space Agency

Name 050359
Title Defining Pre-Outburst and Post-Outburst Characteristics of Eruptive Young Stars


DOI https://doi.org/10.5270/esa-x9oen4l
Author Dr Guy Stringfellow
Description EXORs are extreme T Tauri stars that experience major UV-optical eruptions (3-5
mag) that last about a year. These recurring outbursts driven by high accretion
rates assist in dispersal of the circumstellar disk and the large X-ray-UV flux
injected into the local environment modifies the physical and chemical history,
influencing planet formation and time scales. Little X-ray data exists on these
stars during either quiescent or outburst phases, so basic details such as how
much X-ray flux is produced during eruption is unknown. We will characterize the
X-ray properties of 6 EXORs in their quiescent phase. If an eruption of any
known EXOR occurs during AO6, a high-quality spectrum will be obtained.
Contrasting quiescent and outburst properties provides crucial insight into the physics.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-08-13T11:28:50Z/2007-09-11T15:51:42Z
Version 17.56_20190403_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 2008-10-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Guy Stringfellow, 2008, 050359, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-x9oen4l