J/MNRAS/499/1424 Properties of 407 SNe and their 394 hosts (Hakobyan+, 2020)
Supernovae and their host galaxies.
VII. The diversity of Type Ia supernova progenitors.
Hakobyan A.A., Barkhudaryan L.V., Karapetyan A.G., Gevorgyan M.H.,
Mamon G.A., Kunth D., Adibekyan V., Turatto M.
<Mon. Not. R. Astron. Soc., 499, 1424-1440 (2020)>
=2020MNRAS.499.1424H 2020MNRAS.499.1424H (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Galaxies, optical ; Galaxy catalogs ; Surveys
Keywords: supernovae: individual: Type Ia - galaxies: evolution -
galaxies: star formation - galaxies: stellar content
Abstract:
We present an analysis of the light curve (LC) decline rates
({DELTA}m15) of 407 normal and peculiar supernovae (SNe) Ia and
global parameters of their host galaxies. As previously known, there
is a significant correlation between the {DELTA}m15 of normal SNe Ia
and global ages (morphologies, colours, and masses) of their hosts. On
average, those normal SNe Ia that are in galaxies from the Red
Sequence (early-type, massive, old hosts) have faster declining LCs in
comparison with those from the Blue Cloud (late-type, less massive,
younger hosts) of the colour-mass diagram. The observed correlations
between the {DELTA}m15 of normal SNe Ia and hosts' parameters appear
to be due to the superposition of at least two distinct populations of
faster and slower declining normal SNe Ia from older and younger
stellar components. We show, for the first time, that the {DELTA}m15
of 91bg- and 91T-like SNe is independent of host morphology and
colour. The distribution of hosts on the colour-mass diagram confirms
the known tendency for 91bg-like SNe to occur in globally red/old
galaxies, while 91T-like events prefer blue/younger hosts. On average,
the youngest global ages of 02cx-like SNe hosts and their positions in
the colour-mass diagram hint that these events likely originate from
young population, but they differ from 91T-like events in the LC
decline rate. Finally, we discuss the possible explosion channels and
present our favoured SN Ia models that have the potential to explain
the observed SN-host relations.
Description:
The full database of 407 individual SNe Ia (SN designation, spectroscopic
subclass, {DELTA}m15, and corresponding sources of the data) and their
394 hosts (galaxy designation, distance, corrected ugriz apparent
magnitudes, morphological type, and luminosity-weighted age).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table13.dat 219 407 Properties of 407 SNe and their 394 hosts
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See also:
B/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)
J/A+A/544/A81 : Supernovae and their hosts in SDSS DR8 (Hakobyan+, 2012)
J/MNRAS/444/2428 : Disturbance levels of SNe host galaxies (Hakobyan+, 2014)
J/MNRAS/456/2848 : Properties of 500 SNe & their 419 hosts (Hakobyan+, 2016)
J/MNRAS/471/1390 : Properties of 102 SNe & their 100 hosts (Hakobyan+, 2017)
J/MNRAS/481/566 : Properties of 333 SNe & their 269 hosts (Karapetyan+, 2018)
J/MNRAS/490/718 : Properties of 109 SNe & their 104 hosts(Barkhudaryan+, 2019)
http://www.sdss.org : SDSS Home Page
https://sne.space : The Open Supernova Catalog
Byte-by-byte Description of file: table13.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- SN Supernova (SN) designation
13- 16 A4 --- Type SN subclass (1)
18- 60 A43 --- r_Type Source of SN subclass
62- 66 F5.3 mag dm15 SN light curve (LC) decline rate
68- 73 F6.4 mag e_dm15 Error of SN LC decline rate
75- 99 A25 --- r_dm15 Source of SN LC decline rate
101-129 A29 --- Gal SN host galaxy name
131-142 F12.8 Mpc Dist Host galaxy distance
144-155 F12.9 mag umag ? Host galaxy u-band magnitude
157-168 F12.9 mag gmag Host galaxy g-band magnitude
170-181 F12.9 mag rmag Host galaxy r-band magnitude
183-194 F12.9 mag imag Host galaxy i-band magnitude
196-207 F12.9 mag zmag Host galaxy z-band magnitude
209-214 A6 --- MType Host galaxy morphological type
216-219 F4.1 Gyr Age Host galaxy luminosity-weighted age
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Note (1): Note on SN subclass as follows:
norm = normal Type Ia SNe
91T = overluminous 91T-like SNe
91bg = subluminous 91bg-like SNe
02cx = low luminosity 02cx-like SNe (also called SNe Iax)
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Acknowledgements:
Artur Hakobyan, artur.hakobyan(at)yerphi.am
References:
Hakobyan et al., Paper I 2012A&A...544A..81H 2012A&A...544A..81H, Cat. J/A+A/544/A81
Hakobyan et al., Paper II 2014MNRAS.444.2428H 2014MNRAS.444.2428H, Cat. J/MNRAS/444/2428
Hakobyan et al., Paper III 2016MNRAS.456.2848H 2016MNRAS.456.2848H, Cat. J/MNRAS/456/2848
Aramyan et al., Paper IV 2016MNRAS.459.3130A 2016MNRAS.459.3130A, Cat. J/MNRAS/459/3130
Hakobyan et al., Paper V 2017MNRAS.471.1390H 2017MNRAS.471.1390H, Cat. J/MNRAS/471/1390
Karapetyan et al., 2018MNRAS.481..566K 2018MNRAS.481..566K, Cat. J/MNRAS/481/566
Barkhudaryan et al., Paper VI 2019MNRAS.490..718B 2019MNRAS.490..718B, Cat. J/MNRAS/490/718
(End) Artur Hakobyan [YerPHI], Patricia Vannier [CDS] 23-Nov-2020