HI, CO and near infrared observations of the BCD galaxy Haro 2

H. Bravo-Alfaro, R. Coziol, E. Brinks, A. J. Baker, F. Walter, D. Kunth

Research output: Contribution to journalArticlepeer-review


The question about the triggering of starburst activity in Blue Compact Dwarf (BCD) galaxies is investigated. We obtained VLA H I imaging and a map of the CO(1-0) distribution obtained with the OVRO millimeter array of the BCD Haro 2. In addition, we obtained infrared J and H images of the galaxy with the 2.1 m telescope of the Mexico National Optical Observatory (OAN), used to obtain surface brightness profiles. Based on these data we analyze the striking kinematics of Haro 2, revealed by the Hi and CO, which show that the kinematical major axis lies nearly perpendicular to the photometric major axis. We conclude that this is the consequence of the capture of an important quantity of external gas produced by a close interaction with a neighbor galaxy.

Original languageEnglish (US)
Pages (from-to)417-419
Number of pages3
JournalBaltic Astronomy
Issue number3
StatePublished - 2005

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Galaxies: dwarf, individual: Haro 2
  • Radio lines


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