RECORD
Analysis of the Type IIn Supernova 1998S: Effects of Circumstellar Interaction on Observed Spectra
Astrophysics · Submitted 30 Oct 2000
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The early spectra are well fit by lines produced primarily in the circumstellar region itself, and later spectra are due primarily to the supernova ejecta.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
We present spectral analysis of early observations of the Type IIn supernova 1998S using the general non-local thermodynamic equilibrium atmosphere code \tt PHOENIX}. We model both the underlying supernova spectrum and the overlying circumstellar interaction region and produce spectra in good agreement with observations. The early spectra are well fit by lines produced primarily in the circumstellar region itself, and later spectra are due primarily to the supernova ejecta. Intermediate spectra are affected by both regions. A mass-loss rate of order $\dot M \sim 0.0001-0.001$\msol yr$^{-1}$ is inferred for a wind speed of 100-1000 \kmps. We discuss how future self-consistent models will better clarify the underlying progenitor structure.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present spectral analysis of early observations of the Type IIn supernova 1998S using the general non-local thermodynamic equilibrium atmosphere code \tt PHOENIX}. | contribution 0.66 | 0.95 | 0.04 | asserted 0.98 |
| s1 | We model both the underlying supernova spectrum and the overlying circumstellar interaction region and produce spectra in good agreement with observations. | method 0.39 | 0.96 | 0.24 | asserted 1.00 |
| s2 | The early spectra are well fit by lines produced primarily in the circumstellar region itself, and later spectra are due primarily to the supernova ejecta. | result 0.70 | 0.91 | 0.58 | asserted 1.00 |
| s3 | Intermediate spectra are affected by both regions. | result 0.91 | 0.82 | 0.12 | asserted 1.00 |
| s4 | A mass-loss rate of order $\dot M \sim 0.0001-0.001$\msol yr$^{-1}$ is inferred for a wind speed of 100-1000 \kmps. | result 1.00 | 0.93 | 0.20 | asserted 0.81 |
| s5 | We discuss how future self-consistent models will better clarify the underlying progenitor structure. | future work 1.00 | 0.14 | 0.05 | hedged possibility 0.71 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We present spectral analysis of early observations of the Type IIn supernova 1998S using the general non-local thermodynamic equilibrium atmosphere code \tt PHOENIX}. We model both the underlying supernova spectrum and the overlying circumstellar interaction region and produce spectra in good agreement with observations. The early spectra are well fit by lines produced primarily in the circumstellar region itself, and later spectra are due primarily to the supernova ejecta. Intermediate spectra are affected by both regions. A mass-loss rate of order $\dot M \sim 0.0001-0.001$\msol yr$^{-1}$ is inferred for a wind speed of 100-1000 \kmps. We discuss how future self-consistent models will better clarify the underlying progenitor structure.
Human review
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.