2013/08/01 by Orlin Stanchev, Sava Donkov, Stanchev, Orlin +5
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Astrophysics of Galaxies (astro-ph.GA) #Atomic and Subatomic Physics Research #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Spectroscopy and Laser Applications
paper · pdf · doi:10.48550/arxiv.1308.0261
openalex publication_date 2013/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Volume and column density PDFs in molecular clouds are important diagnostics for understanding their general structure. We developed a novel approach to trace the cloud structure by varying the lower PDF cut-off and exploring a suggested mass-density relationship with a power-law index x^′. The correspondence of x' as a function of spatial scale to the slope of the high-density PDF tail is studied. To validate the proposed model, we use results from hydrodynamical simulations of a turbulent self-gravitating cloud and recent data on dust continuum emission from the Planck mission.