Unveiling the Physics of Core-Collapse Supernovae with the Line Emission Mapper: Observing Cassiopeia A Article Swipe

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S. Orlando , M. Miceli , D. J. Patnaude , Paul P. Plucinsky , S.-H. Lee , Carles Badenes , H. -T. Janka , A. Wongwathanarat , J. Raymond , M. Sasaki , E. Churazov , Ildar Khabibullin , F. Bocchino , Daniel Castro , M. J. Millard ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2408.12462

(Abridged) Core-collapse supernova remnants (SNRs) display complex morphologies and asymmetries, reflecting anisotropies from the explosion and early interactions with the circumstellar medium (CSM). Spectral analysis of these remnants can provide critical insights into supernova (SN) engine dynamics, the nature of progenitor stars, and the final stages of stellar evolution, including mass-loss mechanisms in the millennia leading up to the SN. This white paper evaluates the potential of the Line Emission Mapper (LEM), an advanced X-ray probe concept proposed in response to NASA 2023 APEX call, to deliver high-resolution spectra of SNRs. Such capabilities would allow detailed analysis of parent SNe and progenitor stars, currently beyond our possibilities. We employed a hydrodynamic model that simulates the evolution of a neutrino-driven SN from core-collapse to a 2000-year-old mature remnant. This model successfully replicates the large-scale properties of Cassiopeia A at an age of about 350 years. Using this model, we synthesized mock LEM spectra from different regions of the SNR, considering factors like line shifts and broadening due to plasma bulk motion and thermal ion motion, deviations from ionization and temperature equilibrium, and interstellar medium absorption. Analyzing these mock spectra with standard tools revealed LEM impressive capabilities. We demonstrated that fitting these spectra with plasma models accurately recovers the line-of-sight velocity of the ejecta, enabling 3D structure exploration of shocked ejecta, similar to optical methods. LEM also distinguishes between Doppler and thermal broadening of ion lines and measures ion temperatures near the limb of SNRs, providing insights into ion heating at shock fronts and cooling in post-shock flows. This study highlights LEM potential to advance our understanding of core-collapse SN dynamics and related processes.

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Cassiopeia A Supernova Physics Astrophysics Core (optical fiber) Astronomy Line (geometry) Emission spectrum Supernova remnant Spectral line Optics Geometry Mathematics

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2408.12462
PDF: https://arxiv.org/pdf/2408.12462
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DOI: https://doi.org/10.48550/arxiv.2408.12462

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Title: Unveiling the Physics of Core-Collapse Supernovae with the Line Emission Mapper: Observing Cassiopeia A

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-08-22

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Authors: S. Orlando, M. Miceli, D. J. Patnaude, Paul P. Plucinsky, S.-H. Lee, Carles Badenes, H. -T. Janka, A. Wongwathanarat, J. Raymond, M. Sasaki, E. Churazov, Ildar Khabibullin, F. Bocchino, Daniel Castro, M. J. Millard

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Landing page: https://arxiv.org/abs/2408.12462

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Concepts: Cassiopeia A, Supernova, Physics, Astrophysics, Core (optical fiber), Astronomy, Line (geometry), Emission spectrum, Supernova remnant, Spectral line, Optics, Geometry, Mathematics

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abstract_inverted_index.mature	125
abstract_inverted_index.medium	21, 182
abstract_inverted_index.model,	146
abstract_inverted_index.models	203
abstract_inverted_index.motion	169
abstract_inverted_index.nature	38
abstract_inverted_index.parent	98
abstract_inverted_index.plasma	167, 202
abstract_inverted_index.shifts	162
abstract_inverted_index.stages	45
abstract_inverted_index.stars,	41, 102
abstract_inverted_index.years.	143
abstract_inverted_index.Doppler	227
abstract_inverted_index.advance	262
abstract_inverted_index.between	226
abstract_inverted_index.complex	6
abstract_inverted_index.concept	76
abstract_inverted_index.cooling	252
abstract_inverted_index.deliver	86
abstract_inverted_index.display	5
abstract_inverted_index.ejecta,	211, 218
abstract_inverted_index.factors	159
abstract_inverted_index.fitting	198
abstract_inverted_index.heating	247
abstract_inverted_index.leading	55
abstract_inverted_index.motion,	173
abstract_inverted_index.optical	221
abstract_inverted_index.provide	29
abstract_inverted_index.regions	154
abstract_inverted_index.related	270
abstract_inverted_index.shocked	217
abstract_inverted_index.similar	219
abstract_inverted_index.spectra	88, 151, 187, 200
abstract_inverted_index.stellar	47
abstract_inverted_index.thermal	171, 229
abstract_inverted_index.Emission	69
abstract_inverted_index.Spectral	23
abstract_inverted_index.advanced	73
abstract_inverted_index.analysis	24, 96
abstract_inverted_index.critical	30
abstract_inverted_index.detailed	95
abstract_inverted_index.dynamics	268
abstract_inverted_index.employed	108
abstract_inverted_index.enabling	212
abstract_inverted_index.insights	31, 244
abstract_inverted_index.measures	235
abstract_inverted_index.methods.	222
abstract_inverted_index.proposed	77
abstract_inverted_index.recovers	205
abstract_inverted_index.remnant.	126
abstract_inverted_index.remnants	3, 27
abstract_inverted_index.response	79
abstract_inverted_index.revealed	191
abstract_inverted_index.standard	189
abstract_inverted_index.velocity	208
abstract_inverted_index.Analyzing	184
abstract_inverted_index.currently	103
abstract_inverted_index.different	153
abstract_inverted_index.dynamics,	36
abstract_inverted_index.evaluates	63
abstract_inverted_index.evolution	115
abstract_inverted_index.explosion	14
abstract_inverted_index.including	49
abstract_inverted_index.mass-loss	50
abstract_inverted_index.millennia	54
abstract_inverted_index.potential	65, 260
abstract_inverted_index.providing	243
abstract_inverted_index.simulates	113
abstract_inverted_index.structure	214
abstract_inverted_index.supernova	2, 33
abstract_inverted_index.(Abridged)	0
abstract_inverted_index.Cassiopeia	135
abstract_inverted_index.accurately	204
abstract_inverted_index.broadening	164, 230
abstract_inverted_index.deviations	174
abstract_inverted_index.evolution,	48
abstract_inverted_index.highlights	258
abstract_inverted_index.impressive	193
abstract_inverted_index.ionization	176
abstract_inverted_index.mechanisms	51
abstract_inverted_index.post-shock	254
abstract_inverted_index.processes.	271
abstract_inverted_index.progenitor	40, 101
abstract_inverted_index.properties	133
abstract_inverted_index.reflecting	10
abstract_inverted_index.replicates	130
abstract_inverted_index.absorption.	183
abstract_inverted_index.considering	158
abstract_inverted_index.exploration	215
abstract_inverted_index.large-scale	132
abstract_inverted_index.synthesized	148
abstract_inverted_index.temperature	178
abstract_inverted_index.anisotropies	11
abstract_inverted_index.asymmetries,	9
abstract_inverted_index.capabilities	92
abstract_inverted_index.demonstrated	196
abstract_inverted_index.equilibrium,	179
abstract_inverted_index.hydrodynamic	110
abstract_inverted_index.interactions	17
abstract_inverted_index.interstellar	181
abstract_inverted_index.morphologies	7
abstract_inverted_index.successfully	129
abstract_inverted_index.temperatures	237
abstract_inverted_index.2000-year-old	124
abstract_inverted_index.Core-collapse	1
abstract_inverted_index.capabilities.	194
abstract_inverted_index.circumstellar	20
abstract_inverted_index.core-collapse	121, 266
abstract_inverted_index.distinguishes	225
abstract_inverted_index.line-of-sight	207
abstract_inverted_index.understanding	264
abstract_inverted_index.possibilities.	106
abstract_inverted_index.high-resolution	87
abstract_inverted_index.neutrino-driven	118
cited_by_percentile_year
countries_distinct_count	0
institutions_distinct_count	15
citation_normalized_percentile