Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0808.2643)
· References in the article
· Citations to the Article (3) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (14)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Ubiquitous Water Masers in Nearby Star-Forming Galaxies
Authors:
Darling, Jeremy; Brogan, Crystal; Johnson, Kelsey
Affiliation:
AA(Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences, University of Colorado, 389 UCB, Boulder, CO 80309-0389 .), AB(National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903.), AC(Department of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903.; K. E. J. is also an Adjunct Astronomer at the National Radio Astronomy Observatory.)
Publication:
The Astrophysical Journal, Volume 685, Issue 1, pp. L39-L42. (ApJL Homepage)
Publication Date:
09/2008
Origin:
UCP
ApJ Keywords:
Galaxies: Interactions, Galaxies: ISM, Galaxies: Star Clusters, Galaxies: Starburst, Masers, Radio Lines: Galaxies
DOI:
10.1086/592294
Bibliographic Code:
2008ApJ...685L..39D

Abstract

We report the detection of water maser emission from four nearby galaxies hosting ultradense H II (UDHII) regions, He 2-10, the Antennae galaxies (NGC 4038/4039), NGC 4214, and NGC 5253, with the Green Bank Telescope. Our detection rate is 100%, and all of these H2O ``kilomasers'' (LH2O<10 Lsolar) are located toward regions of known star formation as traced by UDHII regions and bright 24 μm emission. Some of the newly discovered H2O masers have luminosities 1-2 orders of magnitude less than previous extragalactic studies and the same order of magnitude as those typical of Galactic massive star-forming regions. The unusual success of this minisurvey suggests that H2O maser emission may be very common in starburst galaxies, and the paucity of detections to date is due to a lack of sufficient sensitivity. While the galaxy sample was selected by the presence of UDHII regions, and the UDHII regions lie within the telescope beam, in the absence of H2O spectral line maps the connection between H2O masers and UDHII regions has not yet been demonstrated.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints