A dataset provided by the European Space Agency

Name: Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K
Published: 2016-04-22T22:00:00Z

Proposal ID	074249
Title	Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0742490101
DOI	https://doi.org/10.5270/esa-ddiv3q3
Principal Investigator, PI	Dr Ian Smith
Abstract	SN 1978K is a remarkable Type IIn supernova that remains bright at X-ray throughradio wavelengths 35 years after its explosion. Our ongoing multiwavelengthobservations 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 significantfading. Here we request a 100 ksec observation to continue the detailed spectralevolution study. This will serve as a pathfinder for younger Type IInsupernovae. As secondary science, we will obtain data on the ULXs X-1 and X-2,and the other luminous sources in NGC 1313.
Publications	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 \| http://ui.adsabs.harvard.edu/#abs/2017MNRAS.468.1551Z Recurrent Outbursts Revealed in 3XMM J031820.8-663034 \|Zhao Hai-Hui Weng Shan-Shan \| ApJ \| 859-106 \| 2018 \| 2018ApJ...859..106Z \| http://ui.adsabs.harvard.edu/#abs/2018ApJ...859..106Z First detection of X-ray line emission from Type IIn supernova 1978K with XMM-Newtons RGS \|Chiba Yuki Katsuda Satoru et al. \| PASJ \| 72-25 \| 2020 \| 2020PASJ...72...25C \| http://ui.adsabs.harvard.edu/#abs/2020PASJ...72...25C Linking Soft Excess in Ultraluminous X-Ray Sources with Optically Thick Wind Driven by Supercritical Accretion \|Qiu Yanli Feng Hua \| ApJ \| 906-36 \| 2021 \| 2021ApJ...906...36Q \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...906...36Q Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Broadband X-ray spectral variability of the pulsing ULX NGC 1313 X-2 \|Robba A. Pinto C. et al. \| A&A \| 652-118 \| 2021 \| 2021A&A...652A.118R \| http://ui.adsabs.harvard.edu/#abs/2021A&A...652A.118R Unveiling the accretion scenario of BH-ULXs using XMM-Newton observations \|Majumder Seshadri Das Santabrata et al. \| MNRAS \| 526-2086 \| 2023 \| 2023MNRAS.526.2086M \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.526.2086M
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2015-03-30T03:49:32Z/2015-03-31T08:26:12Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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
Last Update	2025-01-27
Keywords	"spectral evolution", "radio wavelengths", "progenitor star", "ulxs x", "luminous blue variable", "NGC 1313", "dropped steadily", "radio flux", "dense medium", "ngc 1313", "XMM", "luminous sources", "type iin supernova", "secondary science"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Ian Smith, 2016, 'Detailed Multiwavelength Study of the Late-Time Evolution of SN 1978K', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ddiv3q3