49 citations · 86 across the 5 of their papers we have counts for
9 papers
CRAFT (Cosmic Ray Acceleration From Turbulence) in Molecular Clouds
Brandt A. L. Gaches, Stefanie Walch, Alex Lazarian
Low-energy cosmic rays, in particular protons with energies below 1 GeV, are significant drivers of the thermochemistry of molecular clouds. However, these cosmic rays are also gre…
TIMES II: Investigating the Relation Between Turbulence and Star-forming Environments in Molecular Clouds
Hyeong-Sik Yun, Jeong-Eun Lee, Neal J. Evans +14
We investigate the effect of star formation on turbulence in the Orion A and Ophiuchus clouds using principal component analysis (PCA). We measure the properties of turbulence by a…
TIMES I: a Systematic Observation in Multiple Molecular Lines Toward the Orion A and Ophiuchus Clouds
Hyeong-Sik Yun, Jeong-Eun Lee, Yunhee Choi +16
We have used the Taeduk Radio Astronomy Observatory to observe the Orion A and Ophiuchus clouds in the 10 lines of CO, CO, HCN, HCO, and NH and the…
Transport of Protostellar Cosmic Rays in Turbulent Dense Cores
Margot Fitz Axen, Stella S. S. Offner, Brandt A. L. Gaches +3
Recent studies have suggested that low-energy cosmic rays (CRs) may be accelerated inside molecular clouds by the shocks associated with star formation. We use a Monte Carlo transp…
Aluminum-26 Enrichment in the Surface of Protostellar Disks Due to Protostellar Cosmic Rays
Brandt A. L. Gaches, Stefanie Walch, Stella S. R. Walch +1
The radioactive decay of aluminum-26 (Al) is an important heating source in early planet formation. Since its discovery, there have been several mechanisms proposed to intro…
Impact of Cosmic-Ray Feedback on Accretion and Chemistry in Circumstellar Disks
S. S. R. Offner, B. A. L. Gaches, J. Holdship
We use the gas-grain chemistry code UCLCHEM to explore the impact of cosmic-ray feedback on the chemistry of circumstellar disks. We model the attenuation and energy losses of the…