A Caltech Library Service

The EVLA: Prospects for HI

Ott, Jürgen and Perley, Rick and Rupen, Michael P. (2008) The EVLA: Prospects for HI. In: The evolution of galaxies through the neutral hydrogen window : Arecibo Observatory, Puerto Rico, 1-3 February, 2008. AIP Conference Proceedings. No.1035. American Institute of Physics , Melville, NY, pp. 272-275. ISBN 9780735405585.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


To continue the unparalleled success of the Very Large Array (VLA) for radio astronomy, the facility is currently being converted to become the 'Expanded VLA' (EVLA). The EVLA will radically improve the VLA in order to cover the full 0.93–50 GHz radio wavelength range without gaps, provide up to an order of magnitude better sensitivity, and to allow observations at much larger bandwidths and spectral resolution as currently possible. For observations of the 21 cm line of atomic neutral hydrogen (HI), the EVLA offers thousands of km s^−1 velocity coverage at sub-km s^−1 resolution for targeted observations as well as an improved spectral baseline stability. In addition, every L-band (21 cm) continuum or targeted HI observation can be set-up to simultaneously observe a full z = 0−0.53 HI redshift survey at a velocity resolution of a few km s^−1. In turn, every HI observation will also yield deep radio continuum images of the field. These synergies will deliver a wealth of data which opens up a wide 'discovery space' to study the details of galaxy evolution and cosmology.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Ott, Jürgen0000-0001-8224-1956
Additional Information:© 2008 American Institute of Physics. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
Subject Keywords:radio lines: ISM, ISM: general. facilities: EVLA
Series Name:AIP Conference Proceedings
Issue or Number:1035
Classification Code:PACS: 95.55.Jz, 95.85.Bh, 98.38.Gt
Record Number:CaltechAUTHORS:20090507-080057804
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14174
Deposited By: Tony Diaz
Deposited On:11 May 2009 21:37
Last Modified:15 Nov 2022 21:56

Repository Staff Only: item control page