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Proposal ID 084374
Title Mind the (Luminosity) Gap: Inside SNe 2017egm 2016eay
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0843740101

DOI https://doi.org/10.5270/esa-1fc6q2e
Principal Investigator, PI Prof Ryan Chornock
Abstract We propose deep late-time observations with XMM-Newton of two of the nearestknown superluminous supernovae (SLSNe), 2017egm and 2016eay, to perform afocused test of the popular model for the power source of hydrogen-poor SLSNethat relies on the spindown energy of rapidly rotating newly born magnetars. Ourprevious late-time observation of the SLSN 2015bn with XMM-Newton resulted in anon-detection, indicating that less than 2% of the inferred spindown energy ofthe magnetar was being emitted at UVOIR or X-ray wavelengths at late times,identifying a missing energy problem. We seek to test whether this is a genericproblem by performing late-time XMM-Newton observations of these two objects bymeasuring the luminosity of X-rays escaping the ejecta at ages of 2-3 years.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2019-05-16T01:12:13Z/2019-05-16T10:22:13Z
Version 21.51_20241115_1113
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 2020-07-08T22:00:00Z
Last Update 2026-07-09
Keywords "spindown energy", "born magnetar", "xmm newton resulted", "deep late time", "XMM-Newton", "xray wavelengths", "power source", "late time", "popular model", "XMM", "missing energy", "slsn 2015bn", "inferred spindown energy", "focused test", "xmm newton", "superluminous supernova slsne"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Prof Ryan Chornock, 2020, 'Mind the (Luminosity) Gap: Inside SNe 2017egm 2016eay', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-1fc6q2e
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.