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Five Supernova Survey Galaxies in the Southern Hemisphere: Supernova Ia Rates

Published online by Cambridge University Press:  17 January 2013

A. A. Hakobyan
Affiliation:
Byurakan Astrophysical Observatory, 0213 Byurakan, Aragatsotn Province, Armenia email: [email protected] Department of General Physics and Astrophysics, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia
A. R. Petrosian
Affiliation:
Byurakan Astrophysical Observatory, 0213 Byurakan, Aragatsotn Province, Armenia email: [email protected]
G. A. Mamon
Affiliation:
Institut d'Astrophysique de Paris (UMR 7095: CNRS & UPMC), 98 bis Bd Arago, 75014 Paris, France
B. McLean
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
D. Kunth
Affiliation:
Institut d'Astrophysique de Paris (UMR 7095: CNRS & UPMC), 98 bis Bd Arago, 75014 Paris, France
M. Turatto
Affiliation:
INAF-Osservatorio Astronomico di Trieste, Via Tiepolo 11, 34143 Trieste, Italy
E. Cappellaro
Affiliation:
INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy
F. Mannucci
Affiliation:
INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy
R. J. Allen
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
N. Panagia
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA INAF-Osservatorio Astrofisico di Catania, Via Santa Sofia 78, 95123 Catania, Italy Supernova Ltd., OYV #131, Northsound Road, Virgin Gorda, British Virgin Islands
M. Della Valle
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131 Napoli, Italy International Center for Relativistic Astrophysics, Piazzale della Repubblica 2, 65122 Pescara, Italy
G. V. Petrosyan
Affiliation:
Department of General Physics and Astrophysics, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, Armenia
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Abstract

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Based on the database of 56 supernovae (SNe) events discovered in 3838 galaxies of the southern hemisphere, we compute the rate of SNe of different types along the Hubble sequence normalized to the optical and near-infrared (NIR) luminosities as well as to the stellar mass of the galaxies. We find that the rates of Type Ia SNe show a dependence on both morphology and colors of the galaxies, and therefore, on the star-formation activity. The rate of SNe Ia can be explained by assuming that at least 15% of Ia events in spiral galaxies originate in relatively young stellar populations. We also find that the rates show no modulation with nuclear activity or environment.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

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