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Open AccessJournal ArticleDOI

Investigating the properties of stripped-envelope supernovae, what are the implications for their progenitors?

S. J. Prentice, +54 more
- 01 May 2019 - 
- Vol. 485, Iss: 2, pp 1559-1578
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TLDR
In this article, the peak luminosity and characteristic time-scales of the bolometric light curves are calculated, and the light curves modelled to derive 56Ni and ejecta masses (MNi and Mej).
Abstract
We present observations and analysis of 18 stripped-envelope supernovae observed during 2013–2018. This sample consists of five H/He-rich SNe, six H-poor/He-rich SNe, three narrow lined SNe Ic, and four broad lined SNe Ic. The peak luminosity and characteristic time-scales of the bolometric light curves are calculated, and the light curves modelled to derive 56Ni and ejecta masses (MNi and Mej). Additionally, the temperature evolution and spectral line velocity curves of each SN are examined. Analysis of the [O  I] line in the nebular phase of eight SNe suggests their progenitors had initial masses = 2.8 ± 1.5 M⊙ which further strengthens the evidence that SE–SNe arise from low-mass progenitors which are typically and lack of clear bimodality in the distribution implies <30 M⊙ progenitors and that envelope stripping via binary interaction is the dominant evolutionary pathway of these SNe.

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Citations
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Journal ArticleDOI

The Explosion of Helium Stars Evolved With Mass Loss

TL;DR: In this paper, light curves, explosion energies, and remnant masses for a grid of supernovae resulting from massive helium stars that have been evolved including mass loss are calculated for a set of stars in interacting systems.
Journal ArticleDOI

A meta-analysis of core-collapse supernova 56 Ni masses

TL;DR: In this paper, a meta-analysis of all published 56 Ni masses for core-collapse supernovae (CC SNe) is provided, and a median 56 Ni mass of 0.032 M ⊙ for SNe II (N ǫ= 115), 0.102 M ⌉ for SNE IIb (Nǫ = 27, 0.163 M ⎉ for SE-SNeIb, SNEI Ib (N ë = ‚=‚33), and 0.155 M
Journal ArticleDOI

Why binary interaction does not necessarily dominate the formation of Wolf-Rayet stars at low metallicity

TL;DR: In this paper, the importance of the binary channel in the formation of Wolf-Rayet stars was investigated in the Magellanic Clouds and the Galaxy, and it was shown that the contribution of binary interactions is a non-trivial and model-dependent function of Z that cannot be conclusively claimed to be monotonically increasing with decreasing Z.
References
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Journal ArticleDOI

The relationship between infrared, optical, and ultraviolet extinction

TL;DR: In this article, the average extinction law over the 3.5 micron to 0.125 wavelength range was derived for both diffuse and dense regions of the interstellar medium. And the validity of the law over a large wavelength interval suggests that the processes which modify the sizes and compositions of grains are stochastic in nature.
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Measuring Reddening with Sloan Digital Sky Survey Stellar Spectra and Recalibrating SFD

TL;DR: In this paper, the authors measured the difference between the measured and predicted colors of a star, as derived from stellar parameters from the Sloan Extension for Galactic Understanding and Exploration Stellar Parameter Pipeline, and achieved uncertainties of 56, 34, 25, and 29 mmag in the colors u − g, g − r, r − i, and i − z, per star.
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Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD

TL;DR: Lee et al. as discussed by the authors measured the difference between the measured and predicted colors of a star, as derived from stellar parameters from the SEGUE Stellar Parameter Pipeline, and achieved uncertainties of 56, 34, 25, and 29 mmag in the colors u-g, g-r, r-i, and i-z, per star.
Journal ArticleDOI

The Sloan digital sky survey photometric system

TL;DR: In this paper, the Sloan Digital Sky Survey photometric system, a new five-color (u' g' r' i' z') wide-band CCD system with wavelength coverage from 3000 to 11 000 A.
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