Title GRB environment Pi Time 300 hrs 11. Name of program and authors: GRB environment 2. One short paragraph with science goal(s): Gamma ray bursts are thought to originate with the explosion of massive stars in regions of prodigious star forming activity at moderate to large distances. This program seeks to survey the regions of a number of gamma ray burst sources to characterize the infrared emission associated with their hosts. The resulting catalog will help to assess whether the paradigm for GRBs is valid. 3. Number of sources: 300 GRB positions 4. Coordinates: 4.1. Rough RA and DEC All sky. 4.2. Moving target: yes/no (e.g. comet, planet, ...) no 4.3. Time critical: yes/no (e.g. SN, GRB, ...) no, the survey is post GRB 5. Spatial scales: 5.1. Angular resolution (arcsec): 1" 5.2. Range of spatial scales/FOV (arcsec): (optional: indicate whether single-field, small mosaic, wide-field mosaic...) single field 5.3. Single dish total power data: no 5.4. ACA: no 5.5. Subarrays: no 6. Frequencies: 6.1. Receiver band: Band 7 and 9 6.2. Lines and Frequencies (GHz): 280 GHz, 345 GHz 650 GHz 6.3. Spectral resolution (km/s): continuum 6.4. Bandwidth or spectral coverage (km/s or GHz): 8 GHz 7. Continuum flux density: 7.1. Typical value (Jy): .05 7.2. Required continuum rms (Jy or K): .03 mJy (1.1 mm); .25 mJy (.45 mm) 7.3. Dynamic range within image: >5 8. Line intensity: 8.1. Typical value (K or Jy): 8.2. Required rms per channel (K or Jy): 8.3. Spectral dynamic range: 9. Polarization: no (optional) 9.1. Required Stokes 9.2. Total polarized flux density (Jy) 9.3. Required polarization rms and/or dynamic range 9.4. Polarization fidelity 10. Integration time for each observing mode/receiver setting (hr): 20 mins 11. Total integration time for program (hr): 300 12. Comments on observing strategy (e.g. line surveys, Target of Opportunity, Sun, ...): (optional) ************************************************************************ Review Chris Carilli: OK