|Title||Mind the (Luminosity) Gap: Inside SNe 2017egm 2016eay|
|Author||Prof Ryan Chornock|
|Description||We propose deep late-time observations with XMM-Newton of two of the nearest known superluminous supernovae (SLSNe), 2017egm and 2016eay, to perform a focused test of the popular model for the power source of hydrogen-poor SLSNe that relies on the spindown energy of rapidly rotating newly born magnetars. Our previous late-time observation of the SLSN 2015bn with XMM-Newton resulted in a non-detection, indicating that less than 2% of the inferred spindown energy of the magnetar was being emitted at UVOIR or X-ray wavelengths at late times, identifying a missing energy problem. We seek to test whether this is a generic problem by performing late-time XMM-Newton observations of these two objects by measuring the luminosity of X-rays escaping the ejecta at ages of 2-3 years.|
|Publication||No observations found associated with the current proposal|
|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, 2020-07-08T22:00:00Z, 084374, 17.56_20190403_1200. https://doi.org/10.5270/esa-1fc6q2e|