|Title||X-ray Observations of Rapid, Luminous and Blue Stellar Explosions|
|Author||Prof Raffaella Margutti|
|Description||We propose an in-depth X-ray study of fast-evolving, blue optical transients (FBOTs). FBOTs are a new class of explosions with luminosities and time scales of evolution that challenge traditional Supernova (SN) models. To date, FBOTs have mostly been studied in the optical-UV, which is of thermal origin and it is not sensitive to the nature of the underlying energy source and properties of the explosion.s fastest ejecta. Here we propose to capitalize on our recent discovery of the first X-ray emission from a FBOT and start the first X-ray monitoring campaign of nearby FBOTs. The primary goals are to (i) obtain the first constraints on the mass-loss history of the stellar progenitors of a new class of SN explosions; (ii) test the presence of engines driving the explosions.|
|Publication||An Embedded X-Ray Source Shines through the Aspherical AT 2018cow: Revealing the Inner Workings of the Most Luminous Fast-evolving Optical Transients . Margutti, R., Metzger, B. D., et all. . ApJ . 872-18 . 2019 . 2019ApJ...872...18M ,
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2020-02-12T23:00:00Z, 082258, 17.56_20190403_1200. https://doi.org/10.5270/esa-9dpt8bi|