Continuing Opportunity: Joint Observations with ALMA

NRAO and the Joint ALMA Observatory (JAO) are entering into an agreement to support joint proposals for observations with the Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA).  

Joint observing proposals will be available starting with NRAO Semester 23B (proposal deadline February 2023, with observations commencing in October 2023) and ALMA Cycle 10 (proposal deadline April 2023, with observations commencing in October 2023). Joint proposals will be permitted only for the main call for ALMA and the semester A and B calls for NRAO.

The table below lists the available ALMA and VLA configurations for each proposal call.

Available Array Configurations
VLA Semester

VLA Configs.

ALMA Cycle

ALMA Configs.

      23B    D, C, B       10      C1-C8
      24A    --, C, B       10      C1-C8
      24B    A, D, C       11      C1-C10
      25A    --, D, C       11      C1-C10
      25B    B, A, D       12      C1-C8
      26A    --, A, D       12      C1-C8
      26B    C, B, A       13      C1-C10
      27A    --, B, A       13      C1-C10

 

NRAO as Main Observatory:  The NRAO will be able to award up to 50 hours on the ALMA 12-m array, 50 hours on the 7-m array, and 50 hours on the Total Power array per year.  The following technical information for the Partner Observatory (ALMA) must be included:

  • Mapping area (Single Pointing/ Multiple pointings / Rectangular Mosaic of given area):
  • Required 12 m Array configuration(s):
  • Requested angular resolution and largest angular scale (in arcseconds):
  • Time request considering overheads (Times calculated with Observing Tool already include overheads)
    • 12 m Array:
    • 7 m Array:
    • TP:
  • Requested Band(s):
  • Representative sensitivity for reference array (i.e. 12m, or 7m for ACA stand-alone projects) and aggregated bandwidth used for sensitivity calculation:
  • Is the time request resulting from OT: (Yes/No)
    • If No, indicate how the time was estimated:
  • Report here the highest spectral and imaging signal-to-noise ratios expected in your sample:
  • Is there any time constraint, including simultaneous or coordinated observations involving multiple observatories?:
  • Is full-polarization required? If so, report here:
    • the coordinates of any source with a declination northern than +30deg:
    • the expected source linear/circular polarization fraction:

 

ALMA as Main Observatory:  The JAO will be able to award up to 5% of the available time on the VLA per year.  See the ALMA call for proposals for the required technical information for the Partner Observatory (VLA).

Connect with NRAO

The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."

AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.