|Title||Mind the (Luminosity) Gap: A Test of the Magnetar-SLSN Connection With SN 2015bn|
|Author||Prof Ryan Chornock|
|Description||We propose a deep late-time observation with XMM-Newton of one of the nearest known superluminous supernovae (SLSNe), 2015bn, to perform a focused test of the model for the optical emission of hydrogen-poor SLSNe that is powered by the spindown energy of a rapidly rotating newly born magnetar. Our early-time observations of SN 2015bn with XMM-Newton resulted in non-detections. However, at times later than 250 days after peak, the optical light curve of this object has now started to decay more rapidly than the input of energy of the hypothesized magnetar. We seek to test the hypothesis that high-energy emission from the magnetar has ionized the ejecta, leading to a breakout of X-rays that should now be observable with XMM-Newton.|
|Publication||Where is the Engine Hiding Its Missing Energy? Constraints from a Deep X-Ray Non-detection of the Superluminous SN 2015bn . Bhirombhakdi, Kornpob, Chornock, Ryan, et all. . ApJ . 868-32 . 2018 . 2018ApJ...868L..32B ,
Blasts from the Past: Supernova Shock Breakouts among X-Ray Transients in the XMM-Newton Archive . Alp, Dennis, Larsson, Josefin, . ApJ . 896-39 . 2020 . 2020ApJ...896...39A ,
|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, 2018-06-29T22:00:00Z, 080286, 17.56_20190403_1200. https://doi.org/10.5270/esa-cht6olp|