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Origin of the Chemical Elements

A number of recent developments, such as particle accelerators and the detection and characterization of the Cosmic Microwave Background (CMB) have revolutionized our understanding of the synthesis of the elements. As one might expect, nucleosynthetic processes are relevant to a wide range of astrophysical phenomenon, and this chapter is equally broad in its scope to explain them all. Continue reading

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A Short-Period Censor of Sub-Jupiter Mass Exoplanets with Low Density

In this paper, Szabó and Kiss compared the planetary parameters of 106 transiting exoplanets to look for clusters of planets in plots of mass versus radius, period versus radius, and other combinations of parameters. Continue reading

The Impact of Gas Stripping and Stellar Mass Loss on Satellite Galaxy Evolution

Galaxies come in many different flavors, therefore models of galaxy formation and evolution must reconcile theory with what we observe. The issue addressed in this paper is that current semi-analytic models over predict the fraction of late-type satellite galaxies that are passive (not forming stars). Continue reading

The Emission Line Properties of Gravitationally-lensed 1.5 < z < 5 Galaxies

Studying galaxies at high redshift helps us to understand how galaxies formed and evolved; in particular, astronomers are interested in the rates of star formation in galaxies and how these rates change with time. Continue reading

How to simulate a fluid

In my last post, I wrote about an interesting application of hydrodynamical simulations to a particular astrophysical problem, so when I saw this excellent introduction to the inner-workings of these simulation codes, I couldn’t resist highlighting it. Continue reading

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