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Observational Constraints on Submillimeter Dust Opacity
Yancy L. Shirley, Tracy L. Huard, Klaus M. Pontoppidan +4
Infrared extinction maps and submillimeter dust continuum maps are powerful probes of the density structure in the envelope of star-forming cores. We make a direct comparison betwe…
The Bolocam Galactic Plane Survey IV: 1.1 and 0.35 mm Dust Continuum Emission in the Galactic Center Region
John Bally, James Aguirre, Cara Battersby +17
The Bolocam Galactic Plane Survey (BGPS) data for a six square degree region of the Galactic plane containing the Galactic center is analyzed and compared to infrared and radio con…
The Bolocam Galactic Plane Survey: Survey Description and Data Reduction
James E. Aguirre, Adam G. Ginsburg, Miranda K. Dunham +13
We present the Bolocam Galactic Plane Survey (BGPS), a 1.1 mm continuum survey at 33" effective resolution of 170 square degrees of the Galactic Plane visible from the northern hem…
The Star Formation Rate and Gas Surface Density Relation in the Milky Way: Implications for Extragalactic Studies
Amanda Heiderman, Neal J. Evans, Lori E. Allen +2
We investigate the relation between star formation rate (SFR) and gas surface densities in Galactic star forming regions using a sample of YSOs and massive clumps. Our YSO sample c…
The Spitzer c2d Survey of Nearby Dense Cores. IX. Discovery of a Very Low Luminosity Object Driving a Molecular Outflow in the Dense Core L673-7
Michael M. Dunham, Neal J. Evans, Tyler L. Bourke +3
We present new infrared, submillimeter, and millimeter observations of the dense core L673-7 and report the discovery of a low-luminosity, embedded Class 0 protostar driving a mole…
Low-mass Star Formation: Observations
Neal J. Evans
I briefly review recent observations of regions forming low mass stars. The discussion is cast in the form of seven questions that have been partially answered, or at least illumin…
The Bolocam Galactic Plane Survey -- III. Characterizing Physical Properties of Massive Star-Forming Regions in the Gemini OB1 Molecular Cloud
Miranda K. Dunham, Erik Rosolowsky, Neal J. Evans +16
We present the 1.1 millimeter Bolocam Galactic Plane Survey (BGPS) observations of the Gemini OB1 molecular cloud complex, and targeted ammonia observations of the BGPS sources. Wh…
c2d Spitzer IRS spectra of embedded low-mass young stars: gas-phase emission lines
Fred Lahuis, Ewine F. van Dishoeck, Jes K. Jørgensen +2
A survey of mid-IR gas-phase emission lines of H2, H2O and various atoms toward a sample of 43 embedded low-mass young stars in nearby star-forming regions is presented. The source…
The Properties of Massive, Dense, Clumps: Mapping Surveys of HCN and CS
Jingwen Wu, Neal Evans, Yancy Shirley +1
We have mapped over 50 massive, dense clumps with four dense gas tracers: HCN J=1-0 and 3-2; and CS J=2-1 and 7-6 transitions. Spectral lines of optically thin H^{13}CN 3-2 and C^{…
The Nature of Transition Circumstellar Disks I. The Ophiuchus Molecular Cloud
Lucas A. Cieza, Matthias R. Schreiber, Gisela A. Romero +7
We have obtained millimeter wavelength photometry, high-resolution optical spectroscopy and adaptive optics near-infrared imaging for a sample of 26 Spitzer-selected transition cir…