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Evidence of Nuclear Disks from the Radial Distribution of CCSNe in Starburst Galaxies

  • Rubén Herrero-Illana
  • Miguel Ángel Pérez-Torres
  • Antxon Alberdi
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 34)

Abstract

Galaxy-galaxy interactions are expected to be responsible for triggering massive star formation and possibly accretion onto a supermassive black hole, by providing large amounts of dense molecular gas down to the central kiloparsec region. Several scenarios to drive the gas further down to the central ∼ 100 pc, have been proposed, including the formation of a nuclear disk around the black hole, where massive stars would produce supernovae. Here, we probe the radial distribution of supernovae and supernova remnants in the nuclear regions of the starburst galaxies M82, Arp 299-A, and Arp 220, by using high-angular resolution (\(\lesssim \)0.1) radio observations. We derived scale-length values for the putative nuclear disks, which range from ∼ 20–30 pc for Arp 299-A and Arp 220, up to ∼ 140 pc for M82. The radial distribution of SNe for the nuclear disks in Arp 299-A and Arp 220 is also consistent with a power-law surface density profile of exponent γ = 1, as expected from detailed hydrodynamical simulations of nuclear disks. This study is detailed in Herrero-Illana, Perez-Torres, and Alberdi [11].

Keywords

Monte Carlo Radial Distribution Very Long Baseline Interferometry Spiral Galaxy Starburst Galaxy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Rubén Herrero-Illana
    • 1
  • Miguel Ángel Pérez-Torres
    • 1
  • Antxon Alberdi
    • 1
  1. 1.Instituto de Astrofísica de Andalucía (IAA-CSIC)GranadaSpain

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