Bolocam GPS Archive
The Bolocam Galactic Plane Survey (BGPS) is a 1.1 mm continuum survey of the Galactic Plane made using Bolocam on the Caltech Submillimeter Observatory. Millimeter-wavelength thermal dust emission reveals the repositories of the densest molecular gas, ranging in scale from cores to whole clouds. By pinpointing these regions, the connection of this gas to nascent and ongoing star formation may be explored. The BGPS coverage totals 192 square degrees (with 33" FWHM effective resolution). The survey is contiguous over the range -10.5 ≤ l ≤ 90.5, |b| ≤ 0.5. Towards the Cygnus X spiral arm, the coverage was flared to |b| ≤ 1.5 for 75.5 ≤ l ≤ 87.5. In addition, cross-cuts to |b| ≤ 1.5 were made at l = 3, 15, 30 and 31. The total area of this section is 133 square degrees. With the exception of the increase in latitude, no pre-selection criteria were applied to the coverage in this region. In addition to the contiguous region, four targeted regions in the outer Galaxy were observed: IC1396 (9 square degrees, 97.5 ≤ l ≤ 100.5, 2.25 ≤ l ≤ 5.25), a region towards the Perseus Arm (4 square degrees centered on l = 111, b=0 near NGC7538), W3/4/5 (18 square degrees, 132.5 ≤ l ≤ 138.5) and Gem OB1 (6 square degrees, 187.5 ≤ l ≤ 193.5). The survey has detected approximately 8,600 sources, to an rms noise level in the maps ranging from 30 to 60 mJy beam-1. The BGPS survey and catalog provide an important database for sub/millimeter observations with the Herschel Space Observatory, ALMA, SCUBA-2, APEX, and others.
The Bolocam GPS coverage is overlayed on the all-sky ISSA image above. Data from the v1 release are shown in blue, additional data from the v2 release are shown in red. SHARC-II map coverage is shown in cyan. You can get cutouts of Bolocam mosaics by clicking on any area on the above image, or by typing a coordinate below.
Documentation is available for all aspects of the Bolocam GPS data set:
If you use Bolocam GPS data, please cite the appropriate reference: Ginsburg et al. (2013) for BGPS v2.1 data; Merello et al. (2015) for SHARC-II maps; Ellsworth-Bowers et al. (2015) for the distance catalog/DPDFs; Rosolowsky et al. (2010) and Aguirre et al. (2011) for BGPS v1 data.
Click here for more information and instructions on using Atlas Instructions
Also available is a Program Interface to Atlas.
Target Selection Single Object
(Name or Coords)
Table Upload
(Multi Object) Instructions
Size (deg):
[maximum 12.5]
Images must cover coordinate
Source Search Radius:
[maximum 6.25 deg]
Search Whole Region
Coordinate Examples:
  • 0 0 gal
  • 10.280 -0.200 gal
  • 33.216 0.026 gal
  • 81.718 0.636 gal
Default: Equatorial J2000