Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A

Research output: Contribution to journal › Journal article › Research › peer-review

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Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A. / Holland-Ashford, Tyler; Lopez, Laura A.; Auchettl, Katie.

In: Astrophysical Journal, Vol. 889, No. 2, 144, 01.02.2020.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Holland-Ashford, T, Lopez, LA & Auchettl, K 2020, 'Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A', Astrophysical Journal, vol. 889, no. 2, 144. https://doi.org/10.3847/1538-4357/ab64e4

APA

Holland-Ashford, T., Lopez, L. A., & Auchettl, K. (2020). Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A. Astrophysical Journal, 889(2), [144]. https://doi.org/10.3847/1538-4357/ab64e4

Vancouver

Holland-Ashford T, Lopez LA, Auchettl K. Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A. Astrophysical Journal. 2020 Feb 1;889(2). 144. https://doi.org/10.3847/1538-4357/ab64e4

Author

Holland-Ashford, Tyler ; Lopez, Laura A. ; Auchettl, Katie. / Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A. In: Astrophysical Journal. 2020 ; Vol. 889, No. 2.

Bibtex

@article{2704edea197744b8bb7a3741190787d5,
title = "Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A",
abstract = "Supernova remnants (SNRs) offer the means to study supernovae (SNe) long after the original explosion and can provide a unique insight into the mechanism that governs these energetic events. In this work, we examine the morphologies of X-ray emission from different elements found in the youngest known core-collapse SNR in the Milky Way, Cassiopeia A. The heaviest elements exhibit the highest levels of asymmetry, which we relate to the burning process that created the elements and their proximity to the center of explosion. Our findings support recent model predictions that the material closest to the source of explosion will reflect the asymmetries inherent to the SN mechanism. Additionally, we find that the heaviest elements are moving more directly opposed to the neutron star (NS) than the lighter elements. This result is consistent with NS kicks arising from ejecta asymmetries.",
keywords = "CORE-COLLAPSE SUPERNOVAE, RAY-EMITTING EJECTA, 3-DIMENSIONAL STRUCTURE, DYNAMICAL EVOLUTION, GALAXY CLUSTERS, EMISSION, SIMULATIONS, EXPLOSION, ACCELERATION, MORPHOLOGIES",
author = "Tyler Holland-Ashford and Lopez, {Laura A.} and Katie Auchettl",
year = "2020",
month = feb,
day = "1",
doi = "10.3847/1538-4357/ab64e4",
language = "English",
volume = "889",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "Institute of Physics Publishing, Inc",
number = "2",

}

RIS

TY - JOUR

T1 - Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A

AU - Holland-Ashford, Tyler

AU - Lopez, Laura A.

AU - Auchettl, Katie

PY - 2020/2/1

Y1 - 2020/2/1

N2 - Supernova remnants (SNRs) offer the means to study supernovae (SNe) long after the original explosion and can provide a unique insight into the mechanism that governs these energetic events. In this work, we examine the morphologies of X-ray emission from different elements found in the youngest known core-collapse SNR in the Milky Way, Cassiopeia A. The heaviest elements exhibit the highest levels of asymmetry, which we relate to the burning process that created the elements and their proximity to the center of explosion. Our findings support recent model predictions that the material closest to the source of explosion will reflect the asymmetries inherent to the SN mechanism. Additionally, we find that the heaviest elements are moving more directly opposed to the neutron star (NS) than the lighter elements. This result is consistent with NS kicks arising from ejecta asymmetries.

AB - Supernova remnants (SNRs) offer the means to study supernovae (SNe) long after the original explosion and can provide a unique insight into the mechanism that governs these energetic events. In this work, we examine the morphologies of X-ray emission from different elements found in the youngest known core-collapse SNR in the Milky Way, Cassiopeia A. The heaviest elements exhibit the highest levels of asymmetry, which we relate to the burning process that created the elements and their proximity to the center of explosion. Our findings support recent model predictions that the material closest to the source of explosion will reflect the asymmetries inherent to the SN mechanism. Additionally, we find that the heaviest elements are moving more directly opposed to the neutron star (NS) than the lighter elements. This result is consistent with NS kicks arising from ejecta asymmetries.

KW - CORE-COLLAPSE SUPERNOVAE

KW - RAY-EMITTING EJECTA

KW - 3-DIMENSIONAL STRUCTURE

KW - DYNAMICAL EVOLUTION

KW - GALAXY CLUSTERS

KW - EMISSION

KW - SIMULATIONS

KW - EXPLOSION

KW - ACCELERATION

KW - MORPHOLOGIES

U2 - 10.3847/1538-4357/ab64e4

DO - 10.3847/1538-4357/ab64e4

M3 - Journal article

VL - 889

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 144

ER -

ID: 247168621