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Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample: Nearby supernova rates from LOSS - II

Open access
Li, Weidong, Leaman, Jesse, Chornock, Ryan, Filippenko, Alexei V., Poznanski, Dovi, Ganeshalingam, Mohan, Wang, Xiaofeng, Modjaz, Maryam, Jha, Saurabh, Foley, Ryan J., Smith, Nathan·2011·Monthly Notices of the Royal Astronomical Society

Abstract

This is the second paper of a series in which we present new measurements of the observed rates of supernovae (SNe) in the local Universe, determined from the Lick Observatory Supernova Search (LOSS). In this paper, a complete SN sample is constructed, and the observed (uncorrected for host-galaxy extinction) luminosity functions (LFs) of SNe are derived. These LFs solve two issues that have plagued previous rate calculations for nearby SNe: the luminosity distribution of SNe and the host-galaxy extinction. We select a volume-limited sample of 175 SNe, collect photometry for every object, and fit a family of light curves to constrain the peak magnitudes and light-curve shapes. The volume-limited LFs show that they are not well represented by a Gaussian distribution. There are notable differences in the LFs for galaxies of different Hubble types (especially for SNe Ia). We derive the observed fractions for the different subclasses in a complete SN sample, and find significant fractions of SNe II-L (10%), IIb (12%), and IIn (9%) in the SN II sample. Furthermore, we derive the LFs and the observed fractions of different SN subclasses in a magnitude-limited survey with different observation intervals, and find that the LFs are enhanced at the high-luminosity end and appear more "standard" with smaller scatter, and that the LFs and fractions of SNe do not change significantly when the observation interval is shorter than 10 days. We also discuss the LFs in different galaxy sizes and inclinations, and for different SN subclasses. Some notable results are ... (abridged).

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Crossref · 10.1111/j.1365-2966.2011.18160.x

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Metadata

Authors
Li, W., Leaman, J., Chornock, R., Filippenko, A. V., Poznanski, D., Ganeshalingam, M., Wang, X., Modjaz, M., Jha, S., Foley, R. J., & Smith, N.
Venue
Monthly Notices of the Royal Astronomical Society
Published
2011-03-24
Volume
412
Issue
3
Pages
1441-1472
ISSN
0035-8711 (ISSN-L)
OpenAlex
W2127569230
Cited by
812
References
4
FWCI
35.43
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample: Nearby supernova rates from LOSS - II. https://app.cochat.ai/papers/10.1111/j.1365-2966.2011.18160.x
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Li, W., Leaman, J., Chornock, R., Filippenko, A. V., Poznanski, D., Ganeshalingam, M., Wang, X., Modjaz, M., Jha, S., Foley, R. J., & Smith, N. (2011). Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample: Nearby supernova rates from LOSS - II. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1111/j.1365-2966.2011.18160.x

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