289 citations · 9.3k across the 155 of their papers we have counts for
4 papers · 2 filters
Results from HOPS: A Multiwavelength Census of Orion Protostars
William J. Fischer, S. Thomas Megeath, Amelia M. Stutz +6
Surveys with the Spitzer and Herschel space observatories are now enabling the discovery and characterization of large samples of protostars in nearby molecular clouds, providing t…
A 0.2 solar mass protostar with a Keplerian disk in the very young L1527 IRS system
John J. Tobin, Lee Hartmann, Hsin-Fang Chiang +5
In their earliest stages, protostars accrete mass from their surrounding envelopes through circumstellar disks. Until now, the smallest observed protostar/envelope mass ratio was ~…
Filamentary Star Formation: Observing the Evolution toward Flattened Envelopes
Katherine Lee, Leslie Looney, Doug Johnstone +1
Filamentary structures are ubiquitous from large-scale molecular clouds (few parsecs) to small-scale circumstellar envelopes around Class 0 sources (~1000 AU to ~0.1 pc). In partic…
Complex Structure in Class 0 Protostellar Envelopes III: Velocity Gradients in Non-Axisymmetric Envelopes, Infall or Rotation?
John J. Tobin, Lee Hartmann, Edwin A. Bergin +5
We present an interferometric kinematic study of morphologically complex protostellar envelopes based on observations of the dense gas tracers N2H+ and NH3. The strong asymmetric n…