HAWC+

High-resolution Airborne Wideband Camera Plus (HAWC+)


HAWC+ Chapter of the Cycle 7 Observer's Handbook

Facility class Science Instrument
Principal Investigator:
Charles D. Dowell
NASA Jet Propulsion Laboratory (JPL)

HAWC+ is a far-infrared camera and imaging polarimeter. It is designed to allow total and polarized flux imaging in five broad bands between wavelengths of 50 μm and 240 μm. Diffraction-limited imaging yields spatial resolutions of ~5 – 20 arcseconds with fields of view ~2 – 10 arcminutes, respectively. HAWC+ utilizes three 31x40 pixel arrays: two for the reflective component and one for the transmitted component of linear polarization. The detectors are cooled by an adiabatic demagnetization refrigerator to an operating temperature of about 0.1 – 0.2 K. Commissioning observations started in late 2016, the instrument acceptance review was completed in late 2017, and has been available for Cycle 7 observations beginning in 2018.

Examples of HAWC+ scientific observations and summary of specifications: HAWC+ Flyer

Information applicable to the current observing cycle, Cycle 7, can be found in the HAWC+ chapter of the Cycle 7 Observer's HandbookBe sure that you are referencing the correct version of the handbook! 

Primary Reference:
Use when citing SOFIA/HAWC+ results.

"HAWC+, the Far-Infrared Camera and Polarimeter for SOFIA"
Harper et al., 2018, JAI, 7, 1840008-1025.
DOI: 10.1142/S2251171718400081; ADS Bibliographic Code: 2018JAI.....740008H

Additional References:

"Far-infrared polarimetry from the Stratospheric Observatory for Infrared Astronomy"
Vaillancourt et al., 2007, ProcSPIE, 6678, 66780D.
DOI: 10.1117/12.730922 [pdf]

"A Two-Dimensional Semiconducting Bolometer Array for HAWC"
Voellmer et al., 2004, ProcSPIE, 5498, 428.
DOI: 10.1117/12.552016 [pdf]

"HAWC: A Far-infrared Camera for SOFIA"
Harper et al., 2000, ProcSPIE, 4014, 43.
DOI: 10.1117/12.389132 [pdf]

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