NRAO Call for Proposals: Semester 2023B

The National Radio Astronomy Observatory (NRAO) invites scientists to participate in the Semester 2023B Call for Proposals for the Karl G. Jansky Very Large Array (VLA) and the Very Long Baseline Array (VLBA), High Sensitivity Array (HSA), and Global mm VLBI Array (GMVA).

The submission deadline for Semester 2023B proposals is Wednesday, 1 February 2023, at 17:00 EST (22:00 UTC).

We would like to highlight a new opportunity for joint observations between ALMA and the VLA.  Please see Joint Proposals for more information.

We note that NRAO accepts Large Proposals that require at least 200 hours of observing time, and we particularly encourage the submission of Large Proposals for the VLBA. Please see the VLBA, HSA, and GVMA Proposal Guide for more information. 

Proposal preparation and submission are handled via the NRAO Proposal Submission Tool (PST) available at NRAO Interactive Services. Proposers who need assistance with proposal preparation or have questions regarding the Call for Proposals or NRAO telescope capabilities should contact Observatory staff via the NRAO Helpdesk. Note that using these tools (both the PST and the Helpdesk) requires registration.

ALMA Cycle 10 Pre-Announcement

alma.jpgA Call for Proposals (CfP) with detailed information on Cycle 10 is anticipated to be issued in April 2023, and the deadline for proposal submission will be in May 2023.  The purpose of this pre-announcement is to highlight aspects of the CfP to assist with early planning.

ALMA Cycle 10 will start in October 2023. In the main 12-m Array, antenna configurations C-1 to C-8 (with maximum baselines between 0.16 and 8.5 km) will be offered. The number of hours to be available for approved science observations will be announced in the CfP. Projects with observations in the highest-frequency Bands 8, 9, and 10 are strongly encouraged. Proposers are encouraged to submit ACA stand-alone observations for targets that can be observed in the LST range of 20h to 10h.

The key dates (anticipated) for Cycle 10 are:

18 Jan 2023 Cycle 10 pre-announcement
12 Apr 2023 Release of the ALMA Cycle 10 CfP and Observing Tool, and opening of the archive for proposal submission
10 May 2023 Proposal submission deadline
Aug 2023 Results of the proposal review sent to proposers
1 Oct 2023 Anticipated start of Cycle 10 observations

The proposal types in Cycle 10 will be the same as those in Cycle 9. Principal Investigators submitting a proposal to ALMA for Very Long Baseline Interferometry (VLBI) observations in ALMA Bands 1 or 3 made in concert with the Global mm-VLBI Array (GMVA) at 7mm and 3 mm must also submit a proposal to the GMVA by its 1 February 2023 deadline.

Additional information is available on the ALMA Science Website.

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