5 papers
An Improved Fit to the Density Distribution in Supersonic Isothermal Turbulence
Evan Scannapieco, Marcus Brüggen, Philipp Grete +1
The density distribution of supersonic isothermal turbulence plays a critical role in many astrophysical systems. It is commonly approximated by a lognormal distribution with a var…
Widespread Hot Molecular Gas Heated by Shear-induced Turbulence in the Galactic Center
Juan Li, Junzhi Wang, Zhiqiang Shen +13
We observed NH3 metastable inversion lines from (3, 3) to (18, 18) toward G0.66-0.13 in the Galactic center with the Shanghai Tianma 65m radio telescope and Yebes 40 m telescope. H…
The Density Distribution of Compressively-Forced Supersonic Turbulence Depends on the Driving Correlation Time
Philipp Grete, Evan Scannapieco, Marcus Brüggen +1
Supersonic turbulence plays a critical role in shaping astrophysical systems, from molecular clouds to the circumgalactic medium. Key properties of this turbulence include the Mach…
The Formation of Protoplanetary Disks through Pre-Main Sequence Bondi-Hoyle Accretion
Paolo Padoan, Liubin Pan, Veli-Matti Pelkonen +2
Protoplanetary disks are traditionally described as finite mass reservoirs left over by the gravitational collapse of the protostellar core, a view that strongly constrains both di…
Understanding Density Fluctuations in Supersonic, Isothermal Turbulence
Evan Scannapieco, Liubin Pan, Edward Buie +1
Supersonic turbulence occurs in many environments, particularly in astrophysics. In the crucial case of isothermal turbulence, the probability density function (PDF) of the logarit…