The interplay between chemistry and nucleation in the formation of carbonaceous dust in supernova ejecta Public Deposited

http://ir.library.oregonstate.edu/concern/articles/c534fq82n

This is the publisher’s final pdf. The article is copyrighted by the American Astronomical Society and published by IOP Publishing. It can be found at:  http://iopscience.iop.org/article/10.3847/0004-637X/817/2/134/meta;jsessionid=508ADCC66307992ED4F95530D00CEF1C.c2.iopscience.cld.iop.org

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Core-collapse supernovae (CCSNe) are considered to be important contributors to the primitive dust enrichment of the interstellar medium in the high-redshift universe. Theoretical models of dust formation in stellar explosions have so far provided controversial results and a generally poor fit to the observations of dust formation in local supernovae. We present a new methodology for the calculation of carbonaceous dust formation in young supernova remnants. Our new technique uses both the nucleation theory and a chemical reaction network to allow us to compute the dust growth beyond the molecular level as well as consider the chemical erosion of the forming grains. We find that carbonaceous dust forms efficiently in the core of the ejecta, but takes several years to condensate, longer than previously estimated. It forms unevenly and remains concentrated in the inner part of the remnant. These results support the role of CCSNe as dust factories and provide new insight into the observations of SN 1987A, in which large amounts of dust have been detected to form on a timescale of years after core-collapse.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Lazzati, D., & Heger, A. (2016). The interplay between chemistry and nucleation in the formation of carbonaceous dust in supernova ejecta. Astrophysical Journal, 817(2), 134. doi:10.3847/0004-637X/817/2/134
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-03-09T17:18:28Z No. of bitstreams: 1 LazzatiInterplayBetweenChemistry.pdf: 1407650 bytes, checksum: 2339188f7526ca0898fee5df0decf11b (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-03-09T17:18:50Z (GMT) No. of bitstreams: 1 LazzatiInterplayBetweenChemistry.pdf: 1407650 bytes, checksum: 2339188f7526ca0898fee5df0decf11b (MD5)
  • description.provenance : Made available in DSpace on 2016-03-09T17:18:50Z (GMT). No. of bitstreams: 1 LazzatiInterplayBetweenChemistry.pdf: 1407650 bytes, checksum: 2339188f7526ca0898fee5df0decf11b (MD5) Previous issue date: 2016-02-01

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items