|Title||Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K|
|Author||Dr Ian Smith|
|Description||SN 1978K in the barred spiral galaxy NGC 1313 is a remarkable supernova. It is a rare Type IIn that remains bright at X-ray through radio wavelengths over 30 years after its explosion. Our ongoing multiwavelength observations probe the dense medium that was ejected by the progenitor star, possibly a Luminous Blue Variable. Our previous XMM-Newton studies discovered the X-ray emission has been coming from two shocks in regions that may have a large abundance of helium. While the radio flux has been dropping, the X-ray and UV-optical fluxes have remained surprisingly constant. Here we request a 100 ksec observation to continue the detailed spectral evolution study. As secondary science, we will obtain data on the ULXs X-1 and X-2, and the other luminous sources in NGC 1313.|
|Publication||Evidence for High-frequency QPOs with a 3:2 Frequency Ratio from a 5000 Solar Mass Black Hole . Pasham, Dheeraj R., Cenko, S. Bradley, et all. . ApJ . 811-11 . 2015 . 2015ApJ...811L..11P ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
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 ,
Ultraluminous X-ray sources with flat-topped noise and QPO . Atapin, Kirill, Fabrika, Sergei, . MNRAS . 486-2766 . 2019 . 2019MNRAS.486.2766A ,
A new possible accretion scenario for ultra-luminous X-ray sources . Kobayashi, Shogo B., Nakazawa, K., . MNRAS . 489-366 . 2019 . 2019MNRAS.489..366K ,
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||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, 2014-06-20T00:00:00Z, 072265, 17.56_20190403_1200. https://doi.org/10.5270/esa-3gjoi64|