The Submillimeter Array


Call for Standard Projects Proposals -2019B Semester

We wish to draw your attention to the latest Call for Standard Observing Proposals for observations with the Submillimeter Array (SMA). This call is for the 2019B semester with observing period Nov 16, 2019 - May 15, 2020.

Standard Observing Proposals
Submission deadline: 05 September 2019 (US)/06 September 2019 (Taiwan)
Proposal Information and Submission http://sma1.sma.hawaii.edu/proposing.html

The SMA is a reconfigurable interferometric array of eight 6-m antennas on Maunakea jointly built and operated by the Smithsonian Astrophysical Observatory and the Academia Sinica Institute of Astronomy and Astrophysics. The array operates in the 230, 345 and 400 GHz bands, observing simultaneously with two orthogonally polarized receivers, one in the 230 GHz or 345 GHz band and the other in the 240 GHz or 400 GHz band (with full polarimetric observations available using the 230+240 or 345+400 band combinations). The SWARM correlator processes 8 GHz bandwidth for each receiver in each sideband, for a total of 32 GHz, at a uniform 140 kHz resolution. This 32 GHz frequency coverage can be continuous where the tuning ranges overlap for the two orthogonally polarized receivers. The SMA provides flexible, wide band frequency coverage that delivers high continuum sensitivity and excellent spectral line capabilities. A full transit observation offers continuum sensitivity of 250 or 600 micro-Jy (1 sigma) at 230 or 345 GHz in good weather conditions (precipitable water vapor 2.5mm and 1.0mm, respectively). The corresponding line sensitivities at 1 km/s resolution are 35 and 80 mJy. The small antennas allow access to low spatial frequencies in the sub-compact configuration, and at the other extreme, the finest angular resolution with the very extended configuration at 345 GHz is ~ 0.25". The compact and extended configurations complete the range. The characteristics and performance of the SMA are both similar and complementary to those of the stand-alone Atacama Compact Array (ACA) component of ALMA. For more information about SMA capabilities, visit the SMA Observer Center website and explore the set of SMA proposing tools. Current and archived SMA Newsletters provide a sampling of the wide variety of science possible with the SMA.

For more details visit the SMA Observer Center Proposal Information Page at http://sma1.sma.hawaii.edu/proposing.html

IMPORTANT DATES FOR STANDARD OBSERVING PROPOSALS

Submissions open: 08 August 2019 (on or before)
Submissions close: 05 September 2019 (US)/06 September 2019 (Taiwain)

Due to current and expected investment in further upgrades to the SMA capabilities, as well as obligations to previous approved programs, the Large Scale Projects program (for projects requesting 100 to 1000 hours) will not be accepting proposals at this time.

Questions or comments regarding the Call for Standard Observing Proposals may be addressed to
sma-proposal@cfa.harvard.edu.

Mark Gurwell
Chair, Submillimeter Array Time Allocation Committee