SOFIA mid-infrared observations of Supernova 1987A in 2016 – forward shocks and possible dust re-formation in the post-shocked region

Simple item page
dc.contributor.authorMatsuura, Mikako
dc.contributor.authorDe Buizer, James M.
dc.contributor.authorArendt, Richard
dc.contributor.authorDwek, Eli
dc.contributor.authorBarlow, M. J.
dc.contributor.authorBevan, Antonia
dc.contributor.authorCigan, Phil
dc.contributor.authorGomez, Haley L.
dc.contributor.authorRho, Jeonghee
dc.contributor.authorWesson, Roger
dc.contributor.authorBouchet, Patrice
dc.contributor.authorDanziger, John
dc.contributor.authorMeixner, Margaret
dc.date.accessioned2022-02-01T15:34:06Z
dc.date.available2022-02-01T15:34:06Z
dc.date.issued2018-10-09
dc.description.abstractThe equatorial ring of Supernova (SN) 1987A has been exposed to forward shocks from the SN blast wave, and it has been suggested that these forward shocks have been causing ongoing destruction of dust in the ring. We obtained Stratospheric Observatory For Infrared Astronomy The Faint Object InfraRed CAmera for the SOFIA Telescope (FORCAST) 11.1, 19.7, and 31.5 μm photometry of SN 1987A in 2016. Compared with Spitzer measurements 10 yr earlier, the 31.5 μm flux has significantly increased. The excess at 31.5 μm appears to be related to the Herschel 70  μm excess, which was detected 5 yr earlier. The dust mass needed to account for the 31.5–70 μm excess is 3–7 × 10⁻⁴ M⊙, more than 10 times larger than the ring dust mass (∼1 × 10⁻⁵ M⊙) estimate from the data 10 yr earlier. We argue that dust grains are re-formed or grown in the post-shock regions in the ring after forward shocks have destroyed pre-existing dust grains in the ring and released refractory elements into gas. In the post-shock region, atoms can stick to surviving dust grains, and the dust mass may have increased (grain growth), or dust grains might have condensed directly from the gas. An alternative possibility is that the outer part of the expanding ejecta dust might have been heated by X-ray emission from the circumstellar ring. The future development of this excess could reveal whether grains are reformed in the post-shocked region of the ring or eject dust is heated by X-ray.en_US
dc.description.sponsorshipBased on observations made with the NASA/DLR Stratospheric Observatory for Infrared Astronomy (SOFIA). SOFIA is jointly operated by the Universities Space Research Association, Inc. (USRA), under NASA contract NAS2-97001, and the Deutsches SOFIA Institut (DSI) under DLR contract 50 OK 0901 to the University of Stuttgart. Financial support for this work was provided by NASA through SOFIA 04-0016 issued by USRA. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This work is based (in part) on archival data obtained with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Support for this work was provided by an award issued by JPL/Caltech. MM acknowledges support from STFC Ernest Ruther ford fellowship (ST/L003597/1), MJB, AB, and RW acknowledge support from European Research Council (ERC) Advanced Grant SNDUST 694520, and HLG and PC acknowledge support from the European Research Council (ERC) in the form of Consolidator Grant COSMICDUST (ERC-2014-CoG-647939).en_US
dc.description.urihttps://academic.oup.com/mnras/article/482/2/1715/5124393en_US
dc.format.extent9 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m23etc-x0hg
dc.identifier.citationMikako Matsuura, James M De Buizer, Richard G Arendt, Eli Dwek, M J Barlow, Antonia Bevan, Phil Cigan, Haley L Gomez, Jeonghee Rho, Roger Wesson, Patrice Bouchet, John Danziger, Margaret Meixner, SOFIA mid-infrared observations of Supernova 1987A in 2016 – forward shocks and possible dust re-formation in the post-shocked region, Monthly Notices of the Royal Astronomical Society, Volume 482, Issue 2, January 2019, Pages 1715–1723, https://doi.org/10.1093/mnras/sty2734en_US
dc.identifier.urihttps://doi.org/10.1093/mnras/sty2734
dc.identifier.urihttp://hdl.handle.net/11603/24104
dc.language.isoen_USen_US
dc.publisherOxford University Pressen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleSOFIA mid-infrared observations of Supernova 1987A in 2016 – forward shocks and possible dust re-formation in the post-shocked regionen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-8403-8548en_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
sty2734.pdf
Size:
1.18 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.56 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection