The ALMA Director, on behalf of the Joint ALMA Observatory (JAO) and the partner organizations in East Asia, Europe, and North America, is pleased to announce the ALMA Cycle 5 Call for Proposals (CfP) for scientific observations to be scheduled from October 2017 to September 2018. It is anticipated that 4000 hours of the 12-m Array time and 3000 hours of the Atacama Compact Array (ACA) time, also known as the Morita Array, will be available for successful proposals from Principal Investigators (PIs) in Cycle 5. Proposals must be prepared and submitted using the ALMA Observing Tool (OT), which is available for download from the ALMA Science Portal. Proposals will be assessed by competitive peer review by a single international review committee.

The ALMA Cycle 5 proposal submission opens at 15:00 UT on Tuesday, 21 March 2017.

The ALMA Cycle 5 proposal submission deadline is 15:00 UT on Thursday, 20 April 2017.

ALMA provides continuum and spectral line capabilities for wavelengths from 0.32 mm to 3.6 mm, and angular resolutions from 0.018” to 3.4” on the 12-m Array. Cycle 5 will bring to ALMA several new observational capabilities, including full polarization observations in Band 4, baselines out to 16 km and simultaneous observations between the 12-m and 7-m Arrays.  Starting in March 2018, also as part of Cycle 5, ALMA will offer observations in Band 5 (proposals for the latter observations are due at the regular Cycle 5 submission deadline).

For comprehensive information of this Cycle 5 Call for Proposals please consuilt the ALMA Science Portal.