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Computing the Bayes Factor from a Markov chain Monte Carlo Simulation of the Posterior Distribution
Markov chain Bayes Factor
2014/12/22
Computation of the marginal likelihood from a simulated posterior distribution is central to Bayesian model selection but is computationally difficult. I argue that the marginal likelihood can be reli...
Light WIMP Searches: The Effect of the Uncertainty in Recoil Energy Scale and Quenching Factor
Light WIMP Searches Recoil Energy Scale
2011/1/11
Taking liquid xenon detectors as a case study, the importance of a robust recoil energy calibration as a prerequisite to a search for light-mass Weakly Interacting Massive Particles (WIMPs) is emphasi...
The Small Covering Factor of Cold Accretion Streams
cosmology theory { galaxies formation and evolution high-redshift radiative transfer
2010/11/11
Theoretical models of galaxy formation predict that galaxies acquire most of their baryons via cold mode accretion. Observations of high-redshift galaxies, while nding strong evidence for ubiquitous ...
Deep CO Observations and the CO-to-H_2 Conversion Factor in DDO 154, a Low Metallicity Dwarf Irregular Galaxy
galaxies ISM — ISM molecules — stars formation
2010/11/16
We present a deep spectroscopic search for CO emission in the dwarf irregular galaxy DDO154, which has an Oxygen abundance of only 1/20 the solar value. The observations were conducted in order to con...
Modeling CO Emission: I. CO as a Column Density Tracer and the X-Factor in Molecular Clouds
Modeling CO Emission X-Factor Molecular Clouds
2010/11/12
Theoretical and observational investigations have indicated that the abundance of car-bon monoxide (CO) is very sensitive to intrinsic properties of the gaseous medium,
such as density, metallicity, ...
The N(H2)/I(CO) Conversion Factor：A Treatment that Includes Radiative Transfer
Conversion Factor N(H2)/I(CO) Radiative Transfer
2009/6/30
The N(H2)/I(CO) Conversion Factor：A Treatment that Includes Radiative Transfer。
ON THE VALUES OF AGEKYAN`S FACTOR IN STELLAR SYSTEMS。
ON THE TOTAL ABSORPTION CROSS-SECTION OF GALAXIES. II. THE CASE OF &Lambda COSMOLOGIES AND COVERING FACTOR VARIATION
HubbleDeepFiel CROSS-SECTION OF GALAXIES COVERING FACTOR VARIATION
2009/3/26
In this work we expand the previous discussion of the plausibility
of hypothesis of origin of the Lyα forest absorption systems in haloes of normal
galaxies in connection with the HubbleDeepField ...