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Supernovae in paired galaxies

T. A. Nazaryan, A. R. Petrosian, A. A. Hakobyan, V. Zh. Adibekyan, D. Kunth, G. A. Mamon, M. Turatto, L. S. Aramyan

We investigate the influence of close neighbor galaxies on the properties of supernovae (SNe) and their host galaxies using 56 SNe located in pairs of galaxies with different levels of star formation (SF) and nuclear activity. The mean distance of type II SNe from nuclei of hosts is greater by about a factor of 2 than that of type Ibc SNe. The distributions and mean distances of SNe are consistent with previous results compiled with the larger sample. For the first time it is shown that SNe Ibc are located in pairs with significantly smaller difference of radial velocities between components than pairs containing SNe Ia and II. We consider this as a result of higher star formation rate (SFR) of these closer systems of galaxies.

Multiwavelength AGN Surveys and Studies
A. M. Mickaelian & D. B. Sanders

Cambridge University Press
Volume 9, Number 304, Page 351
2014 July

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Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia