James R. Graham's Home Page


The Mighty Keck Telescopes



Adaptive Optics

IRCAL is a high resolution IR camera for the Lick Adaptive Optics system. This is a project with Jamie Lloyd, Scott Severson (UCO, Lick) and Bruce Macintosh (LLNL).

The Livermore sodium laser guide-star launched from the Lick 3-m telescope.

Astronomy From a Jet Plane - SOFIA

AY 122:  Undergraduate Infrared Lab

This infrared image of NGC 2024 from Leuschner Observatory was taken with the undergraduate IR camera. Red corresponds to K-band (2.2 microns), green is H-band (1.6 microns), and blue is J-band (1.2 microns).  NGC 2024 is a region of massive star formation in the Orion molecular cloud. Heavy foreground extinction due to interstellar dust reddens many of the stars in this cluster. Even at 2.2 microns, where the extinction is one tenth of that at visible wavelengths, prominent dark dust lanes are apparent. The field of view is 5.7 arc minutes x 5.7 arc minutes. The exposure time is 80 seconds per filter and the limiting magnitude is ~ 14.2 at J and ~ 13 at K. Construction of the infrared camera was made possible by funds from the National Science Foundation and Rockwell International and described by Graham & Treffers (2001, Pub. Astr. Soc. Pac., 113, 607) . The data were reduced using computers donated by Sun Microsystems.

Recent Publications and Preprints

AY 202: Astrophysical Gas Dynamics

The Next Generation Space Telescope & IFIRS.

ROSAT Newsletter article describing the HRI Cygnus Loop survey


Handy Calculators

Dr James R. Graham
Professor of Astronomy
601 Campbell Hall
University of California
Berkeley CA 94720-3411

tel:  (510) 642-8283
fax: (510) 642-3411

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Last updated March 2006