Search Publications
The Nonstellar Infrared Continuum of Seyfert Galaxies
Simpson, Chris; Alonso-Herrero, Almudena; Quillen, Alice C. +2 more
JHKL'M (1-5 µm) imaging of a sample of Seyfert 2 galaxies is presented. We have performed an accurate estimate of the near-infrared nonstellar nuclear fluxes. We confirm that the near-infrared nuclear continuum between 1 and 2.2 µm of some Seyfert 2s is dominated by stellar emission, whereas the continuum emission at longer wavelengths…
Multiwavelength Observations of the Low-Metallicity Blue Compact Dwarf Galaxy SBS 0335-052
Neugebauer, Gerry; Dale, Daniel A.; Soifer, B. T. +3 more
New infrared and millimeter observations from Keck, Palomar, ISO, and OVRO and archival data from the NRAO6 VLA and IRAS are presented for the low-metallicity blue compact dwarf galaxy SBS 0335-052. Mid-infrared imaging shows this young star-forming system is compact (0.31" 80 pc) at 12.5 µm. The large Brγ equivalent width (235 Å) measured f…
A Mid-Infrared Spectral Survey of Galactic Wolf-Rayet Stars
Houck, J. R.; Smith, J. D. T.
We present 8-13 µm spectra at resolution R~600 of 29 northern Galactic Wolf-Rayet stars, including the first ever reported mid-infrared (MIR) spectrum for many. Among the subtypes of the stars studied were 14 WC, 13 WN, 1 WN/WC, and an additional reclassified WN. Lines of He I and He II, along with fine-structure lines of Ne II and S IV, are…
Infrared Space Observatory Short Wavelength Spectrometer Observations of V1425 Aquilae (Nova Aquila 1995)
Morisset, C.; Humphreys, R. M.; Gehrz, R. D. +19 more
We present observations of the classical nova V1425 Aquilae (Nova Aquila 1995) with the Infrared Space Observatory's (ISO) Short Wavelength Spectrometer, the Isaac Newton Telescope's Intermediate Dispersion Spectrograph, and the International Ultraviolet Explorer's Short-Wavelength Primary Spectrograph. Analysis of He II (1640 Å) development const…
The Dust Temperature of the ``Dusty'' Radio Galaxy MG 1019+0535: Evidence for an Outflow
Spinrad, Hyron; Manning, Curtis
Radio galaxies characteristically have strong Lyα emission lines. However, a few have Lyα equivalent widths that are substantially weaker in relation to other emission lines. One in particular, MG 1019+0535 (z=2.765), was studied by Dey, Spinrad, & Dickinson in 1995. We report on our reduction of Infrared Space Observatory (ISO) data in the 16…