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A comprehensive analysis of Spitzer supernovae

A comprehensive analysis of Spitzer supernovae
A comprehensive analysis of Spitzer supernovae
The mid-infrared (mid-IR) wavelength regime offers several advantages for following the late-time evolution of supernovae (SNe). First, the peaks of the SN spectral energy distributions shift toward longer wavelengths, following the photospheric phase. Second, mid-IR observations suffer less from effects of interstellar extinction. Third, and perhaps most important, the mid-IR traces dust formation and circumstellar interaction at late times (>100 days) after the radioactive ejecta component fades. The Spitzer Space Telescope has provided substantial mid-IR observations of SNe since its launch in 2003. More than 200 SNe have been targeted, but there are even more SNe that have been observed serendipitously. Here we present the results of a comprehensive study based on archival Spitzer/IRAC images of more than 1100 SN positions; from this sample, 119 SNe of various subclasses have been detected, including 45 SNe with previously unpublished mid-IR photometry. The photometry reveals significant amounts of warm dust in some cases. We perform an in-depth analysis to constrain the origin and heating mechanism of the dust, and present the resulting statistics.
0004-637X
Szalai, Tamas
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Zsiros, Szanna
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Fox, Ori D.
e589661d-cf7e-48a3-bb57-87eb065eee64
Pejcha, Ondrej
ba472d70-8c25-4d13-ba52-ae7857a29f95
Muller, Tomas
823e8e6b-5939-47b8-b354-ce1504e392ad
Szalai, Tamas
def28eb0-059b-4188-86c4-95551831cd98
Zsiros, Szanna
e8679304-668e-4c34-a388-a248910de987
Fox, Ori D.
e589661d-cf7e-48a3-bb57-87eb065eee64
Pejcha, Ondrej
ba472d70-8c25-4d13-ba52-ae7857a29f95
Muller, Tomas
823e8e6b-5939-47b8-b354-ce1504e392ad

Szalai, Tamas, Zsiros, Szanna, Fox, Ori D., Pejcha, Ondrej and Muller, Tomas (2019) A comprehensive analysis of Spitzer supernovae. The Astrophysical Journal, 241 (2), [38]. (doi:10.3847/1538-4365/ab10df).

Record type: Article

Abstract

The mid-infrared (mid-IR) wavelength regime offers several advantages for following the late-time evolution of supernovae (SNe). First, the peaks of the SN spectral energy distributions shift toward longer wavelengths, following the photospheric phase. Second, mid-IR observations suffer less from effects of interstellar extinction. Third, and perhaps most important, the mid-IR traces dust formation and circumstellar interaction at late times (>100 days) after the radioactive ejecta component fades. The Spitzer Space Telescope has provided substantial mid-IR observations of SNe since its launch in 2003. More than 200 SNe have been targeted, but there are even more SNe that have been observed serendipitously. Here we present the results of a comprehensive study based on archival Spitzer/IRAC images of more than 1100 SN positions; from this sample, 119 SNe of various subclasses have been detected, including 45 SNe with previously unpublished mid-IR photometry. The photometry reveals significant amounts of warm dust in some cases. We perform an in-depth analysis to constrain the origin and heating mechanism of the dust, and present the resulting statistics.

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A Comprehensive Analysis of Spitzer Supernovae - Accepted Manuscript
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Accepted/In Press date: 15 March 2019
Published date: 23 April 2019
Additional Information: arXiv doc is AM

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Local EPrints ID: 430985
URI: http://eprints.soton.ac.uk/id/eprint/430985
ISSN: 0004-637X
PURE UUID: 2403416c-712f-4a16-b099-8ec3c9ee8ddf

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Date deposited: 21 May 2019 16:30
Last modified: 07 Oct 2020 04:18

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Contributors

Author: Tamas Szalai
Author: Szanna Zsiros
Author: Ori D. Fox
Author: Ondrej Pejcha
Author: Tomas Muller

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