Relationship between molecular cloud structure and density PDFs

Дата и время публикации : 2013-08-01T16:23:56Z

Авторы публикации и институты :
Orlin Stanchev
Sava Donkov
Todor V. Veltchev
Rahul Shetty

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: A poster report, presented at the 2013 MPIA summer conference “Phases of the ISM”, Heidelberg, July 29 -August 1, 2013
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR, astro-ph.GA

Краткий обзор статьи: 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 $x^prime$. 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.

Category: Physics