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High-resolution observations of dust in SN 1987A

Cigan, Phil, Gomez, Haley ORCID: and Matsuura, Mikako ORCID: 2017. High-resolution observations of dust in SN 1987A. Presented at: International Astronomical Union, Proceedings of the International Astronomical Union. , vol.12 (S331) Cambridge University Press (CUP), pp. 290-293. 10.1017/S1743921317004604

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The dust produced by supernovae is an important topic for understanding supernova physics and the chemical evolution of galaxies. Recent ALMA observations of SN 1987A have allowed us to peer into the inner ejecta to the cool dust, with spatial resolution from 0:003 at 300 GHz down to 0:0009 at 680 GHz { an improvement over the previous 300 GHz Cycle 0 observations at 0:0069. Comparison of the dust location and morphology with other multiwave- length emission presents an interesting picture of the role dust plays in the ejecta. The mm{FIR SED is compared to radiative models to study the dust composition 30 years after the initial explosion. Fits to the ring emission also probe the drift of the center of the system over time.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Cambridge University Press (CUP)
ISSN: 1743-9213
Date of First Compliant Deposit: 11 June 2018
Date of Acceptance: 17 October 2017
Last Modified: 23 Oct 2022 13:56

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