A dataset provided by the European Space Agency

Name 074249
Title Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0742490101

DOI 10.5270/esa-ddiv3q3
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
Temporal Coverage 2015-03-30T03:49:32Z/2015-03-31T08:26:12Z
Version 17.56_20190403_1200
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2016-04-22T22:00:00Z
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