activity
19992015
most citedEvolutionary Signatures in the Formation of Low-Mass Protostars. II. Towards Reconciling Models and Observations

201 citations · 1.3k across the 16 of their papers we have counts for

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13 papers · 1 filter

astro-ph2007★ 43 cited

The Detection and Characterization of cm Radio Continuum Emission from the Low-mass Protostar L1014-IRS

Yancy L. Shirley, Mark J. Claussen, Tyler M. Bourke +2

Observations by the Cores to Disk Legacy Team with the Spitzer Space Telescope have identified a low luminosity, mid-infrared source within the dense core, Lynds 1014, which was pr…

astro-ph2006★ 54 cited

SHARC-II Mapping of Spitzer c2d Small Clouds and Cores

Jingwen Wu, Michael M. Dunham, Neal J. Evans +2

We present the results of a submillimeter survey of 53 low-mass dense cores with the Submillimeter High Angular Resolution Camera II (SHARC-II). The survey is a follow-up project t…

astro-ph2006★ 72 cited

The Spitzer c2d Survey of Nearby Dense Cores: IV. Revealing the Embedded Cluster in B59

Timothy Y. Brooke, Tracy L. Huard, Tyler L. Bourke +22

Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 microns ind…

astro-ph2006★ 28 cited

SCUBA Mapping of Spitzer c2d Small Clouds and Cores

C. H. Young, T. L. Bourke, K. E. Young +6

We present submillimeter observations of dark clouds that are part of the Spitzer Legacy Program, From Molecular Cores to Planet-Forming Disks (c2d). We used the Submillimetre Comm…

astro-ph2006★ 165 cited

The Spitzer c2d Survey of Nearby Dense Cores: II: Discovery of a Low Luminosity Object in the "Evolved Starless Core" L1521F

Tyler L. Bourke, Philip C. Myers, Neal J. Evans +12

We present Spitzer Space Telescope observations of the "evolved starless core" L1521F which reveal the presence of a very low luminosity object (L < 0.07 Lsun). The object, L1521F-…

astro-ph2006★ 115 cited

The Spitzer c2d Survey of Nearby Dense Cores: I: First Direct Detection of the Embedded Source in IRAM 04191+1522

M. M. Dunham, N. J. Evans, T. L. Bourke +9

We report the first detections of the Class 0 protostellar source IRAM 04191+1522 at wavelengths shortward of 60 microns with the Spitzer Space Telescope. We see extended emission…

astro-ph2005★ 90 cited

Discovery of a Low Mass Bipolar Molecular Outflow from L1014-IRS with the Submillimeter Array

Tyler L. Bourke, Antonio Crapsi, Philip C. Myers +5

Using the Submillimeter Array we report the discovery of a compact low mass bipolar molecular outflow from L1014-IRS and confirm its association with the L1014 dense core at 200 pc…

astro-ph2005★ 156 cited

Evolutionary Signatures in the Formation of Low-Mass Protostars

Chadwick H. Young, Neal J. Evans

We present an evolutionary picture of a forming star. We assume a singular, isothermal sphere as the initial state of the core that undergoes collapse as described by \citet{shu77}…

astro-ph2005★ 51 cited

Dynamical and chemical properties of the "starless" core L1014

A. Crapsi, C. H. DeVries, T. L. Huard +10

Spitzer Space Telescope observations of a point-like source, L1014-IRS, close to the dust peak of the low-mass dense core L1014 have questioned its starless nature. The presence of…

astro-ph2004★ 187 cited

A "Starless" Core that Isn't: Detection of a Source in the L1014 Dense Core with the Spitzer Space Telescope

C. H. Young, J. K. Joergensen, Y. L. Shirley +27

We present observations of L1014, a dense core in the Cygnus region previously thought to be starless, but data from the Spitzer Space Telescope shows the presence of an embedded s…

astro-ph2002

Submillimeter Dust Continuum Studies of Low and High Mass Star Formation

Yancy L. Shirley, Kaisa E. Mueller, Chadwick H. Young +1

Studying the physical environments of low mass and high mass cores using dust continuum emission provides important observational constraints on theoretical models of star formatio…

astro-ph2001

Dust and Molecular Emission from the S235 Star Forming Region

Jeong-Eun Lee, Chadwick H. Young, Yancy L. Shirley +2

We present the results of a multi-faceted study of the high-mass star-forming region S235. With the CalTech Submillimeter Observatory (CSO), we have observed and/or mapped over fif…

astro-ph1999★ 46 cited

The Radio Afterglow From GRB 980519: A Test of the Jet and Circumstellar Models

D. A. Frail, S. R. Kulkarni, R. Sari +6

We present multi-frequency radio observations from the afterglow of GRB 980519 beginning 7.2 hours after the gamma-ray burst and ending 63 days later. The fast decline in the optic…