24 citations · 148 across the 24 of their papers we have counts for
6 papers · 1 filter
Density scaling relation in Orion A: effects of region selection
O. I. Stanchev, T. V. Veltchev, S. Donkov
Recently Stanchev et al. (2015) proposed a technique to derive density scaling relations in a star-forming region from analysis of the probability distribution function of column d…
Relationship between molecular cloud structure and density PDFs
Orlin Stanchev, Sava Donkov, Todor V. Veltchev +1
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 b…
Modeling of molecular clouds with formation of prestellar cores
Sava Donkov, Orlin Stanchev, Todor V. Veltchev
We develop a statistical approach for description of dense structures (cores) in molecular clouds that might be progenitors of stars. Our basic assumptions are a core mass-density…
Clump mass function at an early stage of molecular cloud evolution: I. A statistical approach
Sava Donkov, Todor V. Veltchev, Ralf S. Klessen
We derive the mass function of condensations (clumps) which were formed through a turbulent cascade over a range of spatial scales pc during early, predominantly turbulent…
Stellar and substellar initial mass function: a model that implements gravoturbulent fragmentation and accretion
Todor Veltchev, Ralf S. Klessen, Paul C. Clark
In this work, we derive the stellar initial mass function (IMF) from the superposition of mass distributions of dense cores, generated through gravoturbulent fragmentation of unsta…
Mass-density relationship in molecular cloud clumps
Sava Donkov, Todor Veltchev, Ralf S. Klessen
We study the mass-density relationship n ~ m^x in molecular cloud condensations (clumps), considering various equipartition relations between their gravitational, kinetic, internal…