167 citations · 699 across the 21 of their papers we have counts for
22 papers
A Search for Dust in the Outflow of the HH212 Class 0 Protostellar System
Adele L. Plunkett, Per Bjerkeli, Jon P. Ramsey +2
Perhaps the most visually striking phenomenon during star formation is the ejection of material along the direction of the protostar's rotational axis. Observed in the form of mole…
The Asymmetric Bipolar Fe II Jet and H2 Outflow of TMC1A Resolved with JWST's NIRSpec IFU
Korash Assani, Daniel Harsono, Jon Ramsey +10
(abridged) Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. This study analyzes the atomic jet and molecular outflow in the…
Deep Search For Molecular Oxygen in TW Hya
Becky J. Williams, L. Ilsedore Cleeves, Christian Eistrup +1
The dominant form of oxygen in cold molecular clouds is gas-phase carbon monoxide (CO) and ice-phase water (HO). Yet, in planet-forming disks around young stars, gas-phase CO a…
Episodic infall towards a compact disk in B335?
Per Bjerkeli, Jon P. Ramsey, Daniel Harsono +7
Previous observations of B335 have presented evidence of ongoing infall in various molecular lines, e.g., HCO, HCN, CO. There have been no confirmed observations of a rotationa…
JWST Peers into the Class I Protostar TMC1A: Atomic Jet and Spatially Resolved Dissociative Shock Region
Daniel Harsono, Per Bjerkeli, Jon Ramsey +6
Outflows and winds launched from young stars play a crucial role in the evolution of protostars and the early stages of planet formation. However, the specific details of the mecha…
Disk Wind Feedback from High-mass Protostars. II. The Evolutionary Sequence
Jan E. Staff, Kei E. I. Tanaka, Jon P. Ramsey +2
Star formation is ubiquitously associated with the ejection of accretion-powered outflows that carve bipolar cavities through the infalling envelope. This feedback is expected to b…