A Guide to Comparisons of Star Formation Simulations with Observations
@article{Goodman2010AGT, title={A Guide to Comparisons of Star Formation Simulations with Observations}, author={Alyssa A. Goodman}, journal={Proceedings of the International Astronomical Union}, year={2010}, volume={6}, pages={511 - 519} }
Abstract We review an approach to observation-theory comparisons we call “Taste-Testing.” In this approach, synthetic observations are made of numerical simulations, and then both real and synthetic observations are “tasted” (compared) using a variety of statistical tests. We first lay out arguments for bringing theory to observational space rather than observations to theory space. Next, we explain that generating synthetic observations is only a step along the way to the quantitative…
4 Citations
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References
SHOWING 1-10 OF 44 REFERENCES
A Theory of the IMF for Star Formation in Molecular Clouds
- Physics
- 1996
We present models for the initial mass function (IMF) for stars forming within molecular clouds. These models use the idea that stars determine their own masses through the action of powerful stellar…
THE KINEMATICS OF MOLECULAR CLOUD CORES IN THE PRESENCE OF DRIVEN AND DECAYING TURBULENCE: COMPARISONS WITH OBSERVATIONS
- Physics
- 2008
In this study, we investigate the formation and properties of prestellar and protostellar cores using hydrodynamic self-gravitating adaptive mesh refinement simulations, comparing the cases where…
The "True" Column Density Distribution in Star-Forming Molecular Clouds
- Environmental Science
- 2008
We use the COMPLETE Survey's observations of the Perseus star-forming region to assess and intercompare the three methods used for measuring column density in molecular clouds: near-infrared (NIR)…
THE INTERPLAY OF TURBULENCE AND MAGNETIC FIELDS IN STAR-FORMING REGIONS: SIMULATIONS AND OBSERVATIONS
- Physics
- 2009
We analyze a suite of thin-sheet magnetohydrodynamical simulations based on the formulation of Basu, Ciolek, Dapp, and Wurster. These simulations allow us to examine the observational consequences to…
Physical versus Observational Properties of Clouds in Turbulent Molecular Cloud Models
- Physics
- 2002
We examine the question of how well the physical properties of clumps in turbulent molecular clouds can be determined by measurements of observed clump structures. To do this, we compare simulated…
A role for self-gravity at multiple length scales in the process of star formation
- Physics, GeologyNature
- 2009
A ‘dendrogram’ (hierarchical tree-diagram) analysis reveals that self-gravity plays a significant role over the full range of possible scales traced by 13CO observations in the L1448 molecular cloud, but not everywhere in the observed region.
The structure of molecular clouds and the universality of the clump mass function
- Physics
- 2008
Using a smoothed particle hydrodynamics (SPH) simulation of a star-forming region in a molecular cloud, we show that the emergence of a clump mass function (CMF) resembling the stellar initial mass…
The structure of molecular clouds – II. Column density and mass distributions
- Environmental Science, Physics
- 2010
The formation of stars is inextricably linked to the structure of their parental molecular clouds. Here we take a number of nearby giant molecular clouds (GMCs) and analyse their column density and…
Turbulent Driving Scales in Molecular Clouds
- Physics, Environmental Science
- 2009
Supersonic turbulence in molecular clouds is a dominant agent that strongly affects the clouds' evolution and star formation activity. Turbulence may be initiated and maintained by a number of…
Theoretical Models of Polarized Dust Emission from Protostellar Cores
- Physics
- 2001
We model the polarized thermal dust emission from protostellar cores that are assembled by supersonic turbulent flows in molecular clouds. Self-gravitating cores are selected from a three-dimensional…