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A Comparative Study of the Absolute-Magnitude Distributions of Supernovae
Astrophysics · Submitted 4 Dec 2001
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We find mean absolute blue magnitudes (for H_0=60) of -19.46 for normal Type Ia supernovae (SNe Ia), -18.04 for SNe Ibc, -17.61 and -20.26 for normal and bright SNe Ibc considered separately, -18.03 for SNe II-L, -17.56 and -19.27 for normal and bright SNe II-L considered separately, -17.00 for SNe II-P, and -19.15 for SNe IIn.
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The abstract, sentence by sentence
The Asiago Supernova Catalog is used to carry out a comparative study of supernova absolute-magnitude distributions. An overview of the absolute magnitudes of the supernovae in the current observational sample is presented, and the evidence for subluminous and overluminous events is examined. The fraction of supernovae that are underluminous (M_B > -15) appears to be higher (perhaps much higher) than one fifth but it remains very uncertain. The fraction that are overluminous (M_B < -20) is lower (probably much lower) than 0.01. The absolute-magnitude distributions for each supernova type, restricted to events within 1 Gpc, are compared. Although these distributions are affected by observational bias in favor of the more luminous events, they are useful for comparative studies. We find mean absolute blue magnitudes (for H_0=60) of -19.46 for normal Type Ia supernovae (SNe Ia), -18.04 for SNe Ibc, -17.61 and -20.26 for normal and bright SNe Ibc considered separately, -18.03 for SNe II-L, -17.56 and -19.27 for normal and bright SNe II-L considered separately, -17.00 for SNe II-P, and -19.15 for SNe IIn.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The Asiago Supernova Catalog is used to carry out a comparative study of supernova absolute-magnitude distributions. | method 0.52 | 0.75 | 0.03 | asserted 0.99 |
| s1 | An overview of the absolute magnitudes of the supernovae in the current observational sample is presented, and the evidence for subluminous and overluminous events is examined. | contribution 0.97 | 0.83 | 0.08 | asserted 0.94 |
| s2 | The fraction of supernovae that are underluminous (M_B > -15) appears to be higher (perhaps much higher) than one fifth but it remains very uncertain. | result 1.00 | 0.77 | 0.14 | hedged possibility 0.97 |
| s3 | The fraction that are overluminous (M_B < -20) is lower (probably much lower) than 0.01. | result 1.00 | 0.81 | 0.10 | hedged possibility 0.85 |
| s4 | The absolute-magnitude distributions for each supernova type, restricted to events within 1 Gpc, are compared. | method 0.54 | 0.88 | 0.06 | asserted 0.98 |
| s5 | Although these distributions are affected by observational bias in favor of the more luminous events, they are useful for comparative studies. | limitation 0.99 | 0.32 | 0.05 | asserted 0.99 |
| s6 | We find mean absolute blue magnitudes (for H_0=60) of -19.46 for normal Type Ia supernovae (SNe Ia), -18.04 for SNe Ibc, -17.61 and -20.26 for normal and bright SNe Ibc considered separately, -18.03 for SNe II-L, -17.56 and -19.27 for normal and bright SNe II-L considered separately, -17.00 for SNe II-P, and -19.15 for SNe IIn. | result 1.00 | 0.96 | 0.28 | asserted 1.00 |
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Original abstract
The Asiago Supernova Catalog is used to carry out a comparative study of supernova absolute-magnitude distributions. An overview of the absolute magnitudes of the supernovae in the current observational sample is presented, and the evidence for subluminous and overluminous events is examined. The fraction of supernovae that are underluminous (M_B > -15) appears to be higher (perhaps much higher) than one fifth but it remains very uncertain. The fraction that are overluminous (M_B < -20) is lower (probably much lower) than 0.01. The absolute-magnitude distributions for each supernova type, restricted to events within 1 Gpc, are compared. Although these distributions are affected by observational bias in favor of the more luminous events, they are useful for comparative studies. We find mean absolute blue magnitudes (for H_0=60) of -19.46 for normal Type Ia supernovae (SNe Ia), -18.04 for SNe Ibc, -17.61 and -20.26 for normal and bright SNe Ibc considered separately, -18.03 for SNe II-L, -17.56 and -19.27 for normal and bright SNe II-L considered separately, -17.00 for SNe II-P, and -19.15 for SNe IIn.
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References
How the literature uses it
3 arXiv papers cite this in 3 sentences
Papers citing it · 1 sentence without a confident label
Uses its data or values 1 paper
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SNe Ia have a rate of $r_v = 2.43 ×10^-5 SNe yr^-1 Mpc^-3 h^3_ 70$ [ref] and on average reach a peak absolute magnitude of $B =-19.13 - 5log(h_70)$ [ref] .
Measuring Type Ia Supernova Angular-Diameter Distances with Intensity Interferometry · Introduction · 1.00
Cites it as background 1 paper
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Historically, they were divided into SNe IIP, which exhibit a roughly 100-day phase of nearly constant optical luminosity, and SNe IIL, whose light curves decline more rapidly and approximately linearly in magnitude after peak luminosity [ref] .
Pandora cluster Lensing, AGN, and Transient Exploration (PLATE) from JWST Multi-Epoch Imaging. I. Discovery of a type II supernova candidate in a spiral galaxy at $z=0.7$ · Introduction · 1.00
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