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Mapping WR140 from infrared spectroscopy and imaging
P. M. Williams, W. P. Varricatt, A. P. Marston +1
Observations of the 1.083-micron He I line in WR140 (HD 193793) show P-Cygni profiles which varied as the binary system went through periastron passage. A sub-peak appeared on the…
Discovery of a New Low-Latitude Milky Way Globular Cluster using GLIMPSE
Chip Kobulnicky, A. J. Monson, B. A Buckalew +28
Spitzer Space Telescope imaging as part of the Galactic Legacy Mid-Plane Survey Extraordinaire (GLIMPSE) reveals a previously unidentified low-latitude rich star cluster near l=31.…
Protostars in the Elephant Trunk Nebula
William T. Reach, Jeonghee Rho, Erick Young +12
The optically-dark globule IC 1396A is revealed using Spitzer images at 3.6, 4.5, 5.8, 8, and 24 microns to be infrared-bright and to contain a set of previously unknown protostars…
A GLIMPSE of Star Formation in the Giant H II Region RCW 49
B. A. Whitney, R. Indebetouw, B. L. Babler +19
GLIMPSE imaging using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope indicates that star formation is ongoing in the RCW 49 giant H II region. A photometric compar…
The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
R. Indebetouw, J. S. Mathis, B. L. Babler +17
We determine and tabulate A(lambda)/A(K), the wavelength dependence of interstellar extinction, in the Galactic plane for 1.25um<lambda<8.0um along two lines of sight: l~42 and l~2…
COLA II - Radio and Spectroscopic Diagnostics of Nuclear Activity in Galaxies
E. A. Corbett, L. J. Kewley, P. N. Appleton +6
We present optical spectroscopic observations of 93 galaxies taken from the infra-red selected COLA (Compact Objects in Low Power AGN) sample. The sample spans the range of far-IR…