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Astronomical Instrumentation at Texas A&M

The Department of Physics and Astronomy at Texas A&M University has established a new astronomical instrumentation lab, led by Darren DePoy, to advance the study of Dark Energy and Cosmology. In partnership with major projects like the Dark Energy Survey, GMACS, and HETDEX, the lab focuses on designing cameras and calibration systems. Innovations include DECam, an advanced camera for the CTIO 4m telescope, and aTmCam, which monitors atmospheric conditions for precise photometry. The team is also exploring Antarctic instrumentation projects, paving the way for future collaborations.

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Astronomical Instrumentation at Texas A&M

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  1. Astronomical Instrumentationat Texas A&M Jennifer Marshall Darren DePoy

  2. TAMU Instrumentation • The Department of Physics and Astronomy at Texas A&M University has built a new astronomical instrumentation lab • Three years old • Led by Darren DePoy • Mission: to design and build astronomical instrumentation to support Dark Energy and Cosmology observations • Partner in DES, LSST, HETDEX/HET, GMT

  3. DECam for DES • Dark Energy Survey • Led by Fermilab • DECam: Large new camera for CTIO 4m telescope • DePoy is Project Scientist for DECam • TAMU is involved in calibration efforts for DECam • DECal • aTmCam

  4. DECalfor DES Calibration system for DECam: • Flat field screen • Daily flat field system • LED flat field lamps • Spectrophotometric calibration system • Long fiber bundle • Monochromator (with spectrometer monitor) • Monitor photodiodes Photodiode Screen Projection optics Mono chromator Light source Spectro meter Fiber bundle

  5. aTmCam for DES aerosol • aTmCam is an atmospheric monitoring camera • Goal: produce <1% photometry by monitoring sky during DES observations ‘cannon’ mask with wedge prism and narrowband filters pressure ozone water

  6. VIRUS for HETDEX VIRUS is a new instrument for HET to support HETDEX survey • 150+ channel fiber-fed spectrograph • >33,000 1.5” fibers • 350-550 nm coverage at R~700

  7. GMACS for GMT • Texas A&M is a founding partner in the Giant Magellan Telescope • Recently completed a one-year design study of GMACS • Wide field multi-object optical spectrograph

  8. MooSci for GMT • We have built a lunar scintillometer called MooSci for GMT site testing • Used to test site before and after top of mountain is removed

  9. Antarctic instrumentation • We are interested in collaborating in projects for Antarctica/Dome A • We have begun discussions with Teledyne regarding purchasing detectors for KDUST • We could also help with camera design/testing

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