Hiand CO in Blue Compact Dwarf Galaxies: Haro 2 and Haro 4 | Zendy

H. Bravo–Alfaro | Zendy; E. Brinks | Zendy; A. J. Baker | Zendy; Fabian Walter | Zendy; D. Kunth | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Hiand CO in Blue Compact Dwarf Galaxies: Haro 2 and Haro 4

Author(s) -

H. Bravo–Alfaro,

E. Brinks,

A. J. Baker,

Fabian Walter,

D. Kunth

Publication year - 2004

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/379956

Subject(s) - physics , astrophysics , herbig–haro object , astronomy , galaxy , dwarf galaxy , spiral galaxy , observatory , star formation , millimeter

We present VLA HI imaging of two blue compact dwarf (BCD) galaxies, Haro 2and Haro 4, and of the spiral galaxy Haro 26, which is projected some 22' SW ofHaro 4. We also show a map of the CO(1-0) distribution of Haro 2 obtained withthe OVRO millimeter array, as well as derive an upper limit for CO(2-1)emission from Haro 4 obtained with the CSO. The HI data of Haro 2 reveal thatthe kinematical major axis lies perpendicular to the photometric major axis,indicating that the atomic hydrogen rotates about the major axis of the galaxy.This confirms earlier indications based on CCD photometry that Haro 2 is adust-lane dE rather than a dIrr. We propose that the present neutral andmolecular ISM configuration is due to recent gas accretion or a merger. The HIdistribution and dynamics of Haro 4 and the neighboring spiral Haro 26 suggestthat they are currently undergoing a tidal interaction, reinforcing the notionthat interactions play an important role in triggering the star formationwitnessed in Blue Compact Galaxies.Comment: 25 pages and 17 figures, accepted for publication in Astronomical Journa

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research