Quick search Find article
Quick search
Find article

GASS: THE PARKES GALACTIC ALL-SKY SURVEY. I. SURVEY DESCRIPTION, GOALS, AND INITIAL DATA RELEASE

FREE ISSUE

N. M. McClure-Griffiths1, D. J. Pisano2,12, M. R. Calabretta1, H. Alyson Ford1,3, Felix J. Lockman2, L. Staveley-Smith4, P. M. W. Kalberla5, J. Bailin6, L. Dedes5, S. Janowiecki2,7,13, B. K. Gibson8, T. Murphy9,10, H. Nakanishi11 and K. Newton-McGee1,9

Show affiliations


The Parkes Galactic All-Sky Survey (GASS) is a survey of Galactic atomic hydrogen (H I) emission in the Southern sky covering declinations δ ≤ 1° using the Parkes Radio Telescope. The survey covers 2π steradians with an effective angular resolution of ~16', at a velocity resolution of 1.0 km s-1, and with an rms brightness temperature noise of 57 mK. GASS is the most sensitive, highest angular resolution survey of Galactic H I emission ever made in the Southern sky. In this paper, we outline the survey goals, describe the observations and data analysis, and present the first-stage data release. The data product is a single cube at full resolution, not corrected for stray radiation. Spectra from the survey and other data products are publicly available online.


Keywords

galaxies: interactions; Galaxy: structure; ISM: general; Magellanic Clouds; radio lines: ISM; surveys


Dates

Issue 2 (2009 April)

Received 2008 October 21, accepted for publication 2009 January 14

Published 2009 March 12



View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.