Galactic structure from the Spacelab infrared telescope. I - 2.4
micron map
- Kent,S.M., Mink, D., Fazio, G., Koch, D., Melnick, G., Tardiff, A.,
Maxson, C.
- Harvard-Smithsonian Center for Astrophysics,
Cambridge, Massachusetts 02138
Abstract
The Infrared Telescope, flown aboard the Space Shuttle as part of the
Spacelab-2 mission, scanned a large fraction of the sky at 2.4 microns
with a
resolution of approximately 1 deg. A calibrated map of the Galactic
plane in
the region -20-120 deg l and -30-30 deg b. The photometry is accurate
to a
surface brightness of mu K = 20.0 mag/arcsec. Aside from uncertainties
in the
magnitude zero-point, the data agree quite well with previous maps
derived from
balloon experiments, except that some systematic differences at high
Galactic
longitudes are evident. These data will permit more extensive modeling
of the
2.4-micron emissivity in the Milky Way than has been possible
previously.
Published in 1992 in Astrophysical Journal Supplement Series 9,
Volume 78, pages 403-408.
ADS Abstract