SelectedWorks - Martin D Weinberg

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Selected Works of Martin D Weinberg

Professor, Department of Astronomy

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About Martin D Weinberg

Present	Professor, Department of Astronomy, University of Massachusetts Amherst
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Astrophysics and Astronomy

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Lederle Grad Research Tower, Rm 530
University of Massachusetts Amherst Amherst MA, 01003
Tel:413-545-3821

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A Bayesian approach to the semi-analytic model of galaxy formation ...

Astronomy Department Faculty Publication Series (2010)

Yu Lu, H.J. Mo, Martin D. Weinberg and N Katz

We believe that a wide range of physical processes conspire to shape the observed galaxy population but we remain unsure ...

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Computing the Bayes Factor from a Markov chain Monte Carlo ...

Astronomy Department Faculty Publication Series (2010)

Martin D. Weinberg

Computation of the marginal likelihood from a simulated posterior distribution is central to Bayesian model selection but is computationally difficult. ...

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On the algorithms of radiative cooling in semi-analytic models

Astronomy Department Faculty Publication Series (2010)

Yu Lu, Dusan Keres, N Katz, H.J. Mo, et al.

We study the behaviour of multiple radiative cooling algorithms implemented in six Semi-Analytic Models (SAMs) of galaxy formation, including a ...

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Structural Properties of Central Galaxies in Groups and Clusters

Astronomy Department Faculty Publication Series (2009)

Yicheng Guo, Daniel H. McIntosh, H. J. Mo, Neal Katz, et al.

Using a statistically representative sample of 911 central galaxies (CENs) from the SDSS DR4 Group Catalogue, we study how the ...

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Beyond the Best-fit Parameter: New Insight on Galaxy Structure Decomposition ...

Astronomical Society of the Pacific Conference Series (2009)

Ilsang Yoon, M Weinberg and N Katz

We introduce a novel image decomposition package, Galphat, that provides robust estimates of galaxy surface brightness profiles using Bayesian Markov ...

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Article

Structural properties of central galaxies in groups and clusters

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2009)

YC Guo, DH McIntosh, HJ Mo, N Katz, et al.

Using a statistically representative sample of 911 central galaxies (CENs) from the Sloan Digital Sky Survey (SDSS) Data Release 4 ...

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Article

The dynamics of satellite disruption in cold dark matter haloes

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2009)

JH Choi, MD Weinberg and N Katz

We investigate the physical mechanisms of tidal heating and satellite disruption in cold dark matter host haloes using N-body simulations ...

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Globular Cluster Evolution in M87 and Fundamental Plane Ellipticals

Astronomy Department Faculty Publication Series (2008)

Chigurupati Murali and Martin D. Weinberg

The globular cluster population in M87 has decreased measurably through dynamical evolution caused by relaxation, binary heating and time-dependent tidal ...

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Bar-driven Dark Halo Evolution: A Resolution of the Cusp-Core Controversy

Astronomy Department Faculty Publication Series (2008)

Martin D. Weinberg and Neal Katz

Simulations predict that the dark matter halos of galaxies should have central cusps, while those inferred from observed galaxies do ...

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Effect of The Milkyway on Magellanic Cloud Structure

Astronomy Department Faculty Publication Series (2008)

Martin D. Weinberg

A combination of analytic models and n-body simulations implies that the structural evolution of the Large Magellanic Cloud (LMC) is ...

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Noise-driven Evolution in Stellar Systems: A Universal Halo Profile

Astronomy Department Faculty Publication Series (2008)

Martin D. Weinberg

Using the theory describing the evolution of a galaxy halo due to stochastic fluctuations developed in the companion paper, we ...

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The Effect of the Galactic Spheroid on Globular Cluster Evolution

Astronomy Department Faculty Publication Series (2008)

Chigurupati Murali and Martin D. Weinberg

We study the combined effects of relaxation, tidal heating and binary heating on globular cluster evolution, exploring the physical consequences ...

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Noise-driven Evolution in Stellar Systems: Theory

Astronomy Department Faculty Publication Series (2008)

Martin D. Weinberg

We present a theory for describing the evolution of a galaxy caused by stochastic events such as weak mergers, transient ...

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The Warp and Spiral Arms of the Milky Way

Mapping the Galaxy and Nearby Galaxies (2008)

E.S. Levine, Leo Blitz, Carl Heiles and Martin D Weinberg

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Time-dependent secular evolution in galaxies

Astronomy Department Faculty Publication Series (2008)

Martin D Weinberg

Lynden-Bell & Kalnajs (1972) presented a useful formula for computing the long-range torque between spiral arms and the disk at ...

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Article

The bar-halo interaction - I. From fundamental dynamics to revised N-body ...

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2007)

MD Weinberg and N Katz

A galaxy remains near equilibrium for most of its history. Only through resonances can non-axisymmetric features, such as spiral arms ...

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The bar-halo interaction - II. Secular evolution and the religion of ...

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2007)

MD Weinberg and N Katz

This paper explores resonance-driven secular evolution between a bar and dark matter halo using N-body simulations. We make direct comparisons ...

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Article

The dynamics of tidal tails from massive satellites

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2007)

JH Choi, MD Weinberg and N Katz

We investigate the dynamical mechanisms responsible for producing tidal tails from dwarf satellites using N-body simulations. We describe the essential ...

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Article

A Magellanic origin for the warp of the Galaxy

ASTROPHYSICAL JOURNAL (2006)

MD Weinberg and L Blitz

We show that a Magellanic Cloud origin for the warp of the Milky Way can explain most quantitative features of ...

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Article

Dark matter halo response to the disc growth

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2006)

JH Choi, Y Lu, HJ Mo and MD Weinberg

We consider the sensitivity of the circular-orbit adiabatic contraction approximation to the baryon condensation rate and the orbital structure of ...

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Article

Nature and completeness of galaxies detected in the Two Micron ...

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2006)

DH McIntosh, EF Bell, MD Weinberg and N Katz

The Two Micron All Sky Survey (2MASS) provides the most comprehensive data set of near-infrared galaxy properties. We cross correlate ...

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Article

On the origin of cold dark matter halo density profiles

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2006)

Y Lu, HJ Mo, N Katz and MD Weinberg

N-body simulations predict that cold dark matter (CDM) halo-assembly occurs in two phases: (i) a fast-accretion phase with a rapidly ...

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Article

The Two Micron All Sky Survey (2MASS)

ASTRONOMICAL JOURNAL (2006)

MF Skrutskie, RM Cutri, R Stiening, MD Weinberg, et al.

Between 1997 June and 2001 February the Two Micron All Sky Survey (2MASS) collected 25.4 Tbytes of raw imaging data ...

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Article

The cosmological significance of high-velocity cloud complex H

ASTROPHYSICAL JOURNAL (2006)

JD Simon, L Blitz, AA Cole, MD Weinberg, et al.

We have used new and archival infrared and radio observations to search for a dwarf galaxy associated with the high-velocity ...

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Article

The morphological diversities among star-forming galaxies at high redshifts in ...

ASTROPHYSICAL JOURNAL (2006)

S Ravindranath, M Giavalisco, HC Ferguson, C Conselice, et al.

We used the deep, multiwavelength images obtained by the Great Observatories Origins Deep Survey (GOODS) to identify ~4700 Lyman break ...

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