|Title||Detailed Multi-wavelength 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 37 years after its explosion. While the radio flux dropped steadily, the X-ray and UV-optical fluxes remained constant for a decade. Our recent XMM-Newton and Suzaku observations revealed these are now fading, but apparently with chromatic variations. Our millimeter detection makes this the first old extragalactic supernova to be detected in this band, apart from SN 1987A. Only SN 1978K was detected in a search for warm dust in supernovae in the transitional phase (age 10-100 years). Here we request a 100 ksec XMM-Newton observation as part of our detailed multi-wavelength study of its evolution. This will serve as a pathfinder for younger Type IIn supernovae.|
|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, 2017-12-14T23:00:00Z, 078231, 17.56_20190403_1200. https://doi.org/10.5270/esa-i5hl0zi|