J/MNRAS/459/3130 Lists of arm and interarm supernovae (Aramyan+, 2016)
Supernovae and their host galaxies.
IV. The distribution of supernovae relative to spiral arms.
Aramyan L.S., Hakobyan A.A., Petrosian A.R., de Lapparent V., Bertin E.,
Mamon G.A., Kunth D., Nazaryan T.A., Adibekyan V., Turatto M.
<Mon. Not. R. Astron. Soc. 459, 3130 (2016)>
=2016MNRAS.459.3130A 2016MNRAS.459.3130A (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Supernovae ; Galaxies, optical ; Galaxy catalogs ;
Morphology ; Positional data
Keywords: supernovae: general - galaxies: kinematics and dynamics -
galaxies: spiral - galaxies: stellar content - galaxies: structure
Abstract:
Using a sample of 215 supernovae (SNe), we analyse their positions
relative to the spiral arms of their host galaxies, distinguishing
grand-design (GD) spirals from non-GD (NGD) galaxies. We find that:
(1) in GD galaxies, an offset exists between the positions of Ia and
core-collapse (CC) SNe relative to the peaks of arms, while in NGD
galaxies the positions show no such shifts; (2) in GD galaxies, the
positions of CC SNe relative to the peaks of arms are correlated with
the radial distance from the galaxy nucleus. Inside (outside) the
corotation radius, CC SNe are found closer to the inner (outer) edge.
No such correlation is observed for SNe in NGD galaxies nor for SNe Ia
in either galaxy class; (3) in GD galaxies, SNe Ibc occur closer to
the leading edges of the arms than do SNe II, while in NGD galaxies
they are more concentrated towards the peaks of arms. In both samples
of hosts, the distributions of SNe Ia relative to the arms have
broader wings. These observations suggest that shocks in spiral arms
of GD galaxies trigger star formation in the leading edges of arms
affecting the distributions of CC SNe (known to have short-lived
progenitors). The closer locations of SNe Ibc versus SNe II relative
to the leading edges of the arms supports the belief that SNe Ibc have
more massive progenitors. SNe Ia having less massive and older
progenitors, have more time to drift away from the leading edge of the
spiral arms.
Description:
The file table3.dat lists the parameters of SNe located in spiral
arms.
The file table4.dat lists the parameters of SNe located in interarm
regions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 76 178 List of arm SNe
table4.dat 65 37 List of interarm SNe
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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 the SDSS DR8 (Hakobyan+, 2012)
J/MNRAS/444/2428 : Disturbance levels of SNe host galaxies (Hakobyan+, 2014)
J/MNRAS/456/2848 : Properties of 500 SNe and their 419 hosts (Hakobyan+, 2016)
http://www.sdss.org : SDSS Home Page
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- SN Supernova (SN) designation
10- 16 A7 --- Type SN type (1)
17 A1 --- n_Type [*] * for SN type inferred from the light curve
19- 32 A14 --- Gal Host galaxy name
39- 43 A5 --- MType Host galaxy morphological type (2)
46- 48 A3 --- SType Host galaxy spiral arm class
54- 57 F4.2 --- RSN/R25 SN galactocentric distance
62- 65 F4.2 --- d1 Normalized distance d1
67 A1 --- f_d1 [:*] Distance d1 flag (3)
70- 74 F5.2 --- d2 ? Normalized distance d2 (4)
76 A1 --- f_d2 [:*] Distance d2 flag (3)
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Note (1): Uncertainties in SN type are marked by ":".
Note (2): Uncertainties in host galaxy morphological type are marked by ":".
Note (3): The distance is flagged by a "*" or ":" symbol when one of the edges
of the spiral arm is roughly determined. In these cases, the contaminated
(by the light of a star or by the SN itself) edge is determined as
a symmetric reflection of the other edge from the peak.
The "*" symbol indicates that the SN is located between the peak and the
roughly determined edge of the arm, while
the ":" symbol indicates that the SN is located between the well-determined
edge and the peak.
Note (4): In a few cases, the d2 parameter was not determined because of
a noisy arm profile.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- SN Supernova (SN) designation
9- 13 A5 --- Type SN type
14 A1 --- n_Type [*] * for SN type inferred from the light curve
16- 29 A14 --- Gal Host galaxy name
34- 37 A4 --- MType Host galaxy morphological type
40- 42 A3 --- SType Host galaxy spiral arm class
48- 51 F4.2 --- RSN/R25 SN galactocentric distance
54- 58 F5.2 --- d1 Normalized distance d1
61- 65 F5.2 --- d2 ? Normalized distance d2 (1)
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Note (1): In a few cases, the d2 parameter was not determined because of
a noisy arm profile.
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Acknowledgements:
Artur Hakobyan, hakobyan(at)bao.sci.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
(End) Artur Hakobyan [BAO], Patricia Vannier [CDS] 04-Aug-2016