EVLA Planning Workshop: Defining the Second Phase

Background Material

This is a work-in-progress, with more links (as well as original material) being added daily. If you would like to contribute something, or would like to suggest some links and/or documents that would be useful to have but aren't here yet, please send e-mail to mrupen@nrao.edu .

In most browsers, holding down the SHIFT key while clicking on a postscript file will allow you to download (rather than to view) it.

Contents:

• General EVLA Documents
• New Mexico Array
• Configuration Issues
• The Nature of the Stations
• VLBA Integration
• E Configuration
• Low Frequencies (300-1000 MHz)
• The EVLA in Context: Other Radio Initiatives
• Green Bank Telescope
• LOFAR
• GMRT
• Allen Telescope Array
• e-MERLIN
• Square Kilometre Array
• Visions

General EVLA Documents

• The Very Large Array Expansion Project

  Rick Perley/July 2001, from the Berkeley SKA meeting

  (also available as postscript [[an error occurred while processing this directive]])

• EVLA Phase I Overview (postscript [[an error occurred while processing this directive]])

  Rick Perley & Michael Rupen/14 August 2001

  includes scientific capabilities (sensitivities, correlator modes, etc.) & timeline

• EVLA Phase II Overview (postscript [[an error occurred while processing this directive]])

  Rick Perley & Michael Rupen/16 August 2001

  includes scientific capabilities, some technical options, and comments on connections with Phase I.

• Rough cost estimates
• EVLA Project Timeline

  Michael Rupen/August 2001

  a preliminary timeline, with Phase II milestones indicated; approved by P. Napier, based on discussions with him & B. Carlson

New Mexico Array

• Science drivers
• Science with the NMA (v. 0.0) (postscript [[an error occurred while processing this directive]])

  Michael Rupen/June 1999

  a VERY ROUGH summary of previous meetings etc.

• The NMA as a Stand-alone Instrument
• e-MERLIN science case (at the bottom of the page)

Configuration Issues

Number and location of NMA stations.

• Introduction
• Configuration Studies for the EVLA (postscript [[an error occurred while processing this directive]])

  Aaron Cohen & Rick Perley/4 December 2000 (EVLA Memo #20)

The Nature of the Stations

Size of dishes, beam-forming arrays, frequency coverage needed, etc.

• Introduction

 
• Towards a Cost Equation for a Multielement Station (postscript [[an error occurred while processing this directive]])

  Barry Clark/May 2001 (EVLA Memo #29)

• Comments on Barry's memo, with another EVLA Station Cost Estimate and corresponding plot (the latter two are postscript [ 88K; 7.0K], and are also available as PDF and PDF plot [5.7K; 9.9K])

  Sandy Weinreb/27 May 2001



• Related issues: software, correlator, frequency coverage, field-of-view


• Do we need 86 GHz for star formation studies with the NMA? (postscript [ 29K])

  Claire Chandler/20 June 2001; concentrates on circumstellar dust disks

VLBA Integration

Possible connections to the VLBA.

• The VLBA Upgrade Study (postscript [187K])

  Jon Romney/23 April 1999
  concentrates on VLBA upgrade possibilities, but gives a good summary list of science topics which may also apply to EVLA Phase II.

• VLA/VLBA Integration

  Craig Walker/23 August 2001
  (given as a talk at the workshop)

E Configuration

• Some Scientific Arguments for Building the E Configuration

  John Dickey/17 August 2001
  This is a first draft --- please address comments and suggestions to john@ast1.spa.umn.edu

• An EVLA Compact Configuration with Optimized Side Lobes (postscript [[an error occurred while processing this directive]])

  Leonid Kogan/15 August 2001 (EVLA Memo #30)

• Exploring Various Options for a VLA E Array (postscript [[an error occurred while processing this directive]])

  Mark Holdaway/10 June 1996 (EVLA Memo #6)

• Comparison of uv-coverage, density, and speed: GBT, ATA, VLA/D, GMRT

Low Frequencies (300-1000 MHz)

• Science drivers
• Electromagnetic Analysis of the VLA Antennas at L-Band (postscript [121K])

  S. Srikanth/20 May 1999
  Comparison of Cassegrain and prime focus L-band feeds; originally intended as an appendix to the EVLA Phase I NSF proposal.

• The UHF/VHF Prime Focus Systems for the EVLA (postscript [[an error occurred while processing this directive]])

  Dick Sramek/21 July 1995 (EVLA Memo #2)

• Future Ideas for Low Frequencies at the VLA (and in New Mexico)
  (this is actually even lower frequencies, but has some relevance here)

  Namir Kassim/July 2001, from a talk at NRAO

  (also available as PDF [2.5M])

The EVLA in Context: Other Radio Initiatives

• An overview of sensitivity, resolution, & frequency coverage

Green Bank Telescope

• GBT home page

LOFAR

• NRL LOFAR home page
• NFRA LOFAR home page



• NRL LOFAR publications & presentations
• NRL LOFAR science presentation
• NFRA LOFAR science page
  
  
• LOFAR Overview

  Harvey Butcher/July 2001, from the Berkeley SKA meeting

  (also available as postscript [7.3M])

• Future Ideas for Low Frequencies at the VLA (and in New Mexico)

  Namir Kassim/July 2001, from a talk at NRAO

  (also available as PDF [2.5M])

• Presentation to the Radio/Submillimeter Panel for the NAS Decadaly Survey

  Namir Kassim, Joe Lazio, & Bill Erickson/April 1999

  (also available as PDF [2.5M])

GMRT

• GMRT home page

Allen Telescope Array

• ATA home page
• Berkeley Radio Astronomy Lab.
• Antenna Configurations for the ATA

  Douglas Bock/July 2001, from the Berkeley SKA meeting

  (also available as postscript [ 10M])

• ATA Overview

  John Dreher/July 2001, from the Berkeley SKA meeting

  (also available as postscript [8.6M])

• ATA Overview

  John Dreher/May 2001, NRAO colloquium (more complete, much longer!)

  (also available as postscript [ 22M])

e-MERLIN

• e-MERLIN home page
• e-MERLIN Overview

  Phil Diamond/July 2001, from the Berkeley SKA meeting

  (also available as PDF [2.9M])

Square Kilometre Array

• Home pages
  • SKA international home page (Dutch)
  • US Square Kilometer Array Consortium
  • Canadian Square Kilometer Array home page
  • ATNF SKA home page
  • Jodrell Bank SKA home page


• Recent SKA meetings (lots of presentations on-line here!)
  This is arbitrarily cut off at the middle of 2000. Please let me know if I've missed some!
  • The SKA: Defining the Future (Berkeley meeting, 9-12jul01)

    talks posted! (15aug01)

  • CfA workshop (3apr01)
  • Jodrell Bank workshop (3-5aug00)


• Official strawman specifications

  based on Sydney workshop in 1997, and maintained on the SKAI Web site



• Science with the SKA
  • Science with the SKA (ed. Taylor & Braun, dated 22jun99)


• Technical developments
  • Progress at JPL Concerning Antenna and Wideband Receiver Design (postscript; 4.9M)

    Sandy Weinreb & Durga Bagri/ 6 July 2001, from Berkeley SKA meeting



• Ongoing telescope efforts
  • The Large Adaptive Reflector home page (Canadian)
    • Science with the Canadian Large Adaptive Reflector

      Stephanie Cote/July 2001, from the Berkeley SKA meeting

      (also available as postscript [[an error occurred while processing this directive]])

      See also the CLAR poster (postscript [[an error occurred while processing this directive]]) from the same meeting

  • KARST home page (Chinese SKA)

Visions

Possible paths to the future.

• A Road Map for the United States' Development Efforts on the Square Kilometer Array (postscript [153K])

  US SKA Consortium/15 March 2001

• Next Generation Radio Arrays (postscript [ 74K])

  Colin Lonsdale/17 July 2001

  A memo from Colin Lonsdale suggesting a path to unifying several US radio astronomical initiatives. Note that this is intended only to address the US situation.