|Title||Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K|
|Author||Dr Ian Smith|
|Description||SN 1978K is a remarkable Type IIn supernova that remains bright at X-ray through radio wavelengths 35 years after its explosion. Our ongoing multiwavelength observations probe the dense medium that was ejected by the progenitor star, possibly a Luminous Blue Variable. While the radio flux has dropped steadily, the X-ray and UV-optical fluxes remained surprisingly constant for a decade. However, our most recent XMM observation in 2013 June reveals a significant fading. Here we request a 100 ksec observation to continue the detailed spectral evolution study. This will serve as a pathfinder for younger Type IIn supernovae. As secondary science, we will obtain data on the ULXs X-1 and X-2, and the other luminous sources in NGC 1313.|
|Publication||The X-ray decay of the ultraluminous supernova SN 1978K in NGC 1313 . Zhao, Hai-Hui, Weng, Shan-Shan, . MNRAS . 468-1551 . 2017 . 2017MNRAS.468.1551Z ,
Recurrent Outbursts Revealed in 3XMM J031820.8-663034 . Zhao, Hai-Hui, Weng, Shan-Shan, . ApJ . 859-106 . 2018 . 2018ApJ...859..106Z ,
First detection of X-ray line emission from Type IIn supernova 1978K with XMM-Newton.s RGS . Chiba, Yuki, Katsuda, Satoru, et all. . PASJ . 72-25 . 2020 . 2020PASJ...72...25C ,
|Instrument||EPN, RGS1, OM, RGS2, EMOS1, EMOS2|
|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, 2016-04-22T22:00:00Z, 074249, 17.56_20190403_1200. https://doi.org/10.5270/esa-ddiv3q3|