Search Publications
Searching for Cool Dust in the Mid-to-far Infrared: The Mass-loss Histories of the Hypergiants µ Cep, VY CMa, IRC+10420, and ρ Cas
Gehrz, Robert D.; Humphreys, Roberta M.; Jones, Terry J. +6 more
We present mid- and far-IR imaging of four famous hypergiant stars: the red supergiants µ Cep and VY CMa, and the warm hypergiants IRC +10420 and ρ Cas. Our 11-37 µm SOFIA/FORCAST imaging probes cool dust not detected in visual and near-IR imaging studies. Adaptive optics 8-12 µm imaging of µ Cep and IRC +10420 with MMT/MIR…
Comparing [C II] , HI, and CO Dynamics of Nearby Galaxies
Boquien, M.; Armus, L.; Walter, F. +12 more
The H I and CO components of the interstellar medium (ISM) are usually used to derive the dynamical mass {M}{{dyn}} of nearby galaxies. Both components become too faint to be used as a tracer in observations of high-redshift galaxies. In those cases, the 158 µm line of atomic carbon ([C II]) may be the only way to derive {M}{…
Star Formation in 3CR Radio Galaxies and Quasars at z < 1
Wilkes, Belinda J.; Willner, S. P.; Haas, Martin +8 more
Using the Herschel Space Observatory we have observed a representative sample of 87 powerful 3CR sources at redshift z\lt 1. The far-infrared (FIR, 70-500 µm) photometry is combined with mid-infrared (MIR) photometry from the Wide-Field Infrared Survey Explorer and cataloged data to analyze the complete spectral energy distributions (SEDs) o…
Large Size and Slow Rotation of the Trans-Neptunian Object (225088) 2007 OR10 Discovered from Herschel and K2 Observations
Pál, András; Szabó, Róbert; Sárneczky, Krisztián +5 more
We present the first comprehensive thermal and rotational analysis of the second most distant trans-Neptunian object (TNOs) (225088) 2007 OR10. We combined optical light curves provided by the Kepler Space Telescope-K2 extended mission and thermal infrared data provided by the Herschel Space Observatory. We found that (225088) 2007 OR
The CDF Archive: Herschel PACS and SPIRE Spectroscopic Data Pipeline and Products for Protostars and Young Stellar Objects
Larson, Rebecca L.; Lee, Jeong-Eun; Bouwman, Jeroen +6 more
We present the COPS-DIGIT-FOOSH (CDF) Herschel spectroscopy data product archive, and related ancillary data products, along with data fidelity assessments, and a user-created archive in collaboration with the Herschel-PACS and SPIRE ICC groups. Our products include datacubes, contour maps, automated line fitting results, and best 1D spectra produ…
Herschel Spectroscopic Observations of Little Things Dwarf Galaxies
Lebouteiller, Vianney; Schruba, Andreas; Cormier, Diane +8 more
We present far-infrared (FIR) spectral line observations of five galaxies from the Little Things sample: DDO 69, DDO 70, DDO 75, DDO 155, and WLM. While most studies of dwarfs focus on bright systems or starbursts due to observational constraints, our data extend the observed parameter space into the regime of low surface brightness dwarf galaxies…
Star-forming Activity in the H II Regions Associated with the IRAS 17160-3707 Complex
Ojha, D. K.; Vig, S.; Ghosh, S. K. +3 more
We present a multiwavelength investigation of star formation activity toward the southern H II regions associated with IRAS 17160-3707, located at a distance of 6.2 kpc with a bolometric luminosity of 8.3 × 105 L ⊙. The ionized gas distribution and dust clumps in the parental molecular cloud are examined in detail using measu…
SOFIA Mid-infrared Imaging1 and CSO Submillimeter Polarimetry Observations of G034.43+00.24 MM1
Gehrz, R. D.; Vaillancourt, John E.; Shenoy, Dinesh +3 more
We present 11.1 to 37.1 µm imaging observations of the very dense molecular cloud core MM1 in G034.43+00.24 using FORCAST on SOFIA and submillimeter (submm) polarimetry using SHARP on the Caltech Submillimeter Observatory. We find that at the spatial resolution of SOFIA, the point-spread function (PSF) of MM1 is consistent with being a singl…
Radio Properties of Young Stellar Objects in the Core of the Serpens South Infrared Dark Cloud
Gutermuth, Robert A.; Tobin, John J.; Kern, Nicholas S. +2 more
We present deep radio continuum observations of the star-forming core of the Serpens South Infrared Dark Cloud with the Karl G. Jansky Very Large Array. Observations were conducted in two bands centered at 7.25 GHz (4.14 cm) and 4.75 GHz (6.31 cm) with a {σ }{rms} of 8.5 and 11.1 µJy/beam, respectively. We also use 2MASS, Spitzer …
High-mass Star Formation Toward Southern Infrared Bubble S10
Tej, Anandmayee; Ishwara Chandra, C. H.; Vig, Sarita +2 more
An investigation in radio and infrared wavelengths of two high-mass star-forming regions toward the southern Galactic bubble S10 is presented here. The two regions under study are associated with the broken bubble S10 and Extended Green Object, G345.99-0.02, respectively. Radio continuum emission mapped at 610 and 1280 MHz using the Giant Metrewav…