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Evolutionary Signatures in the Formation of Low-Mass Protostars. II. Towards Reconciling Models and Observations
Michael M. Dunham, Neal J. Evans, Susan Terebey +2
A long-standing problem in low-mass star formation is the "luminosity problem," whereby protostars are underluminous compared to the accretion luminosity expected both from theoret…
Fragmentation and Evolution of Molecular Clouds. II: The Effect of Dust Heating
Andrea Urban, Hugo Martel, Neal J. Evans
We investigate the effect of heating by luminosity sources in a simulation of clustered star formation. Our heating method involves a simplified continuum radiative transfer method…
The Spitzer c2d Survey of Nearby Dense Cores: Jet and Molecular Outflow Associated with a YSO in core A of L1251
Jeong-Eun Lee, Ho-Gyu Lee, Jong-Ho Shinn +6
A long infrared jet has been discovered by the Spitzer c2d legacy program in core A of L1251. It is associated with a very embedded Class 0 object with an accretion luminosity of a…
Continuum Observations at 350 Microns of High-Redshift Molecular Emission Line Galaxies
Jingwen Wu, Paul Vanden Bout, Neal Evans +1
We report observations of 15 high redshift (z = 1-5) galaxies at 350 microns using the Caltech Submillimeter Observatory and SHARC-II array detector. Emission was detected from eig…
The Spitzer c2d Survey of Nearby Dense Cores VII: Chemistry and Dynamics in L43
Jo-Hsin Chen, Neal J. Evans, Jeong-Eun Lee +1
We present results from the Spitzer Space Telescope and molecular line observations of 9 species toward the dark cloud L43. The Spitzer images and molecular line maps suggest it ha…
The Spatially Resolved Star Formation Law from Integral Field Spectroscopy: VIRUS-P Observations of NGC 5194
Guillermo A. Blanc, Amanda Heiderman, Karl Gebhardt +2
We investigate the relation between the star formation rate surface density (Sigma_SFR) and the mass surface density of gas (Sigma_gas) in NGC 5194. VIRUS-P integral field spectros…
The Spitzer c2d Survey of Nearby Dense Cores: VI. The Protostars of Lynds Dark Nebula 1221
Chadwick H. Young, Tyler L. Bourke, Michael M. Dunham +7
Observations of Lynds Dark Nebula 1221 from the Spitzer Space Telescope are presented. These data show three candidate protostars towards L1221, only two of which were previously k…
The Spitzer survey of interstellar clouds in the Gould Belt. II. The Cepheus Flare observed with IRAC and MIPS
Jason M. Kirk, Derek Ward-Thompson, James Di Francesco +14
We present Spitzer IRAC (~2 deg^2) and MIPS (~8 deg^2) observations of the Cepheus Flare which is associated with the Gould Belt, at an approximate distance of ~300 pc. Around 6500…
Far-infrared Observations of the Very Low-Luminosity Embedded Source L1521F-IRS in the Taurus Star-Forming Region
Susan Terebey, Michel Fich, Alberto Noriega-Crespo +14
We investigate the environment of the very low-luminosity object L1521F IRS using data from the Taurus Spitzer Legacy Survey. The MIPS 160 micron image shows both extended emission…