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Results from the Cycle 4 Supplemental Call for Proposals

Jun 20, 2017

The JAO received 198 proposals requesting 4815 h of observing time on the 7-m Array in response to the Cycle 4 Supplemental Call for Proposals.  The proposals were reviewed by astronomers from Chile, ESO, JAO, NAOJ, and NRAO. The ALMA Observatory Scientist, the regional ALMA Program Scientists, and a Chilean representative reviewed the results, and after considering both the scientific rank and the share of time across regions, they forwarded a list of recommended proposals to the ALMA Director for approval. 

Tables 1 and 2 summarize the proposals by scientific category and region, respectivelyA total of 32 proposals requesting 716 h were accepted and added to the 7-m Array observing queue for the remainder of Cycle 4. The amount of time allocated is less than the 800 hours anticipated in the Supplemental Call for Proposals since snowstorms at the ALMA site in late May and early June have adversely affected operations and thereby reduced the amount of time available for science observations

  

Table 1: Proposals By Category

 

Number of proposals

Time (hours)

Category

Submitted

Accepted

Requested

Approved

Cosmology and the high redshift universe

29

5

925

116

Galaxies and galactic nuclei

54

11

1456

257

ISM, star formation, and astrochemistry

81

9

1731

241

Circumstellar disks, exoplanets, and the solar system

20

4

383

49

Stellar evolution and the Sun

14

3

320

53

Total

198

32

4815

716

  

Table 2: Proposals by Region

 

Number of proposals

Time (hours)

Region

Submitted

Accepted

Requested

Approved

Chile

12

2

302

43

East Asia

46

8

950

143

Europe

82

11

2147

227

North America

53

10

1297

260

Other

5

1

119

43

Total

198

32

4815

716