J/A+A/703/A34 SN rates and luminosity functions from ASAS-SN II (Pessi,+ 2025)
Supernova rates and luminosity functions from ASAS-SN II:
2014-2017 core-collapse supernovae and their subtypes.
Pessi T., Desai D.D., Prieto J.L., Kochanek C.S., Shappee B.J.,
Anderson J.P., Beacom J.F., Dong S., Stanek K.Z., Thompson T.A.
<Astron. Astrophys. 703, A34 (2025)>
=2025A&A...703A..34P 2025A&A...703A..34P (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Supernovae ; Magnitudes ; Optical ;
Stars, distances
Keywords: stars: massive - supernovae: general
Abstract:
The volumetric rates and luminosity functions (LFs) of core-collapse
supernovae (ccSN) and their subtypes are important for understanding
the cosmic history of star formation and the buildup of ccSNe
products. To estimate these rates, we use data of nearby ccSNe
discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN)
from 2014-2017, when all observations were made in the V-band.
The sample is composed of 174 discovered or recovered events, with
high spectroscopic completeness from followup observations. This
allows us to obtain a statistically precise and systematically robust
estimate of nearby rates for ccSNe and their subtypes. The volumetric
rates are estimated by correcting the observed number of events for
the survey completeness, which was estimated through injection
recovery simulations using ccSN light curves.
We find a total volumetric rate for ccSNe of
7.0x10-5yr-1Mpc-3*h3, at a median redshift of 0.0149, for
absolute magnitudes at peak MV,peak≤-14mag. This result is in
agreement with previous local volumetric rates. We obtain volumetric
rates for the different ccSN subtypes (II, IIn, IIb, Ib, Ic, Ibn, and
Ic-BL), and find that the relative fractions of Type II,
stripped-envelope, and interacting ccSNe are 63.2%, 32.3%, and 4.4%,
respectively. We also estimate a volumetric rate for superluminous SNe
of 1.5yr-1Gpc-3*h3, corresponding to a fraction of 0.002% of the
total ccSN rate.We produce intrinsic V-band luminosity functions of
ccSNe and their subtypes, and show that ccSN rates steadily decline
for increasing luminosities. We further investigate the specific ccSN
rate as a function of their host galaxy stellar mass, and find that
the rate decreases with increasing stellar mass, with significantly
higher rates at lower mass galaxies (logM*<9.0M☉).
Description:
The table reports the properties of the ccSNe in our sample. The
names, types, coordinates (RA and Dec), and host galaxy redshift,
zhost, were retrieved from Holoien et al. (2017MNRAS.464.2672H 2017MNRAS.464.2672H, Cat.
J/MNRAS/464/2672, 2017MNRAS.467.1098H 2017MNRAS.467.1098H, Cat. J/MNRAS/467/1098,
2017MNRAS.471.4966H 2017MNRAS.471.4966H, Cat. J/MNRAS/471/4966,
2019MNRAS.484.1899H 2019MNRAS.484.1899H, Cat. J/MNRAS/484/1899). We estimate the V-band
observed flux, FV,peak, apparent magnitude, mV,peak, and time at peak
brightness, tpeak, by fitting the ccSN flux light curves with
templates from Vincenzi et al. (2019MNRAS.489.5802V 2019MNRAS.489.5802V).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 149 206 Properties of the CCSNe in the sample
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See also:
J/MNRAS/464/2672 : ASAS-SN bright supernova catalogue 2013-2014 (Holoien+ 2017)
J/MNRAS/467/1098 : ASAS-SN bright supernova catalogue 2015 (Holoien+, 2017)
J/MNRAS/471/4966 : ASAS-SN bright supernova catalogue 2016 (Holoien+, 2017)
J/MNRAS/484/1899 : ASAS-SN bright supernova catalogue 2017 (Holoien+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 29 A29 --- Name SN Name
32- 39 A8 --- Type SN type
42- 43 I2 h RAh Right Ascension (J2000)
45- 46 I2 min RAm Right Ascension (J2000)
48- 52 F5.2 s RAs Right Ascension (J2000)
56 A1 --- DE- Declination sign (J2000)
57- 58 I2 deg DEd Declination (J2000)
60- 61 I2 arcmin DEm Declination (J2000)
63- 67 F5.2 arcsec DEs Declination (J2000)
71- 75 F5.3 --- zhost Redshift of the host galaxy
78- 82 F5.2 mag Vmagpeak Apparent magnitude at peak
87- 92 F6.2 mag VMAGpeak Absolute magnitude at peak
96-101 F6.3 mJy FVpeak Flux at peak
112-119 F8.2 --- tpeak Time of peak brightness (JD-2400000)
130-134 F5.2 mag mu(z) Distance modulus
137-140 F4.2 mag AVMW ?=- Milky Way extinction
144-149 F6.3 mag KVpeak K-correction
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Acknowledgements:
Thallis Pessi, thallis.pessi(at)gmail.com
(End) Patricia Vannier [CDS] 08-Sep-2025