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A Multiwavelength Study of IC 63 and IC 59
Martin, P. G.; Noriega-Crespo, A.; Karr, J. L.
IC 63 and IC 59 are two nearby arc-shaped nebulae with relatively simple geometries and minimal obscuring material. The two regions, in spite of a similar projected distance from their ionizing star, have very different observational properties, both in continuum emission and in the presence and strength of line emission from molecular species. Th…
Optical Identification of Infrared Space Observatory Far-Infrared Sources in the Lockman Hole Using a Deep Very Large Array 1.4 GHz Continuum Survey
Veilleux, S.; Sanders, D. B.; Kawara, K. +10 more
By exploiting the far-infrared (FIR) and radio correlation, we have performed a likelihood-ratio analysis to identify optical counterparts to the FIR sources that have been found in an area of ~0.9 deg2 during the Infrared Space Observatory (ISO) deep FIR survey in the Lockman Hole. New ground-based observations have been conducted to b…
Far-Infrared and Millimeter Continuum Studies of K Giants: α Bootis and α Tauri
McMurry, A. D.; Lim, Tanya; Schulz, Bernhard +5 more
We have imaged two normal, noncoronal, infrared-bright K giants, α Tau and α Boo, in the 1.4 and 2.8 mm continua using BIMA. These stars have been used as important absolute calibrators for several infrared satellites. Our goals are (1) to establish whether these stars radiate as simple photospheres or possess long-wavelength chromospheres and (2)…
Dust Morphology and Composition in FU Orionis Systems
Woodward, Charles E.; Russell, Ray W.; Telesco, C. M. +7 more
FU Orionis stars are a small group of pre-main-sequence stars known for large-amplitude optical variability. These objects also exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present high spatial resolution mid-IR imaging and spectroscopy, submillimeter photometry, and 3-4 µm photometry of four…