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Searching for Cool Dust in the Mid-to-Far Infrared: the Mass Loss Histories of The Hypergiants Cep, VY CMa, IRC+10420, and Cas
Dinesh Shenoy, Roberta M. Humphreys, Terry Jay Jones +6
We present mid- and far- IR imaging of four famous hypergiant stars: the red supergiants Cep and VY CMa, and the warm hypergiants IRC +10420 and Cas. Our 11 to 37 m SOFI…
CK Vul: a smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides)
A. Evans, R. D. Gehrz, C. E. Woodward +5
We present observations of CK Vul obtained with the Spitzer Space Telescope. The infrared spectrum reveals a warm dust continuum with nebular, molecular hydrogen and HCN lines supe…
An Excess of Mid-Infrared Emission from the Type Iax SN 2014dt
Ori D. Fox, Joel Johansson, Mansi Kasliwal +12
Supernovae Type Iax (SNe Iax) are less energetic and less luminous than typical thermonuclear explosions. A suggested explanation for the observed characteristics of this subclass…
Panchromatic imaging and spectroscopic observations of the mass ejections of RY Scuti
Robert D. Gehrz, Nathan Smith, Dinesh Shenoy
We describe recent panchromatic imaging and spectroscopic studies of the supergiant, mass-transferring, binary star RY Scuti, which is in a brief transitional phase to become a Wol…
Infrared Observations of novae in the SOFIA era
R. D. Gehrz, A. Evans, L. A. Helton +1
Classical novae inject chemically enriched gas and dust into the local inter-stellar medium (ISM). Abundances in the ejecta can be deduced from infrared (IR) forbidden line emissio…
SOFIA Infrared Spectrophotometry of Comet C/2012 K1 (Pan-STARRS)
Charles E. Woodward, Michael S. P. Kelley, David E. Harker +8
We present pre-perihelion infrared 8 to 31 micron spectrophotometric and imaging observations of comet C/2012 K1 (Pan-STARRS), a dynamically new Oort Cloud comet, conducted with NA…