Colloquium

This is a talk held during the regular colloquium series (usually Tuesdays at 4pm).

Highly magnetic neutron stars: bewildering astrophysical laboratories and cosmological tools

Tuesday, January 17, 2017 - 1:00pm
Prof. Rosalba Perna (Stony Brook University)

Anomalous X-ray Pulsars and Soft Gamma-Ray Repeaters (SGRs) are young neutron stars characterized by high X-ray quiescent luminosities, outbursts, and, in the case of SGRs, sporadic giant flares.  They are believed to be magnetars, that is neutron stars powered by ultra-strong magnetic fields.

A Fresh Look at Molecular Gas in Galaxies

Tuesday, December 20, 2016 - 1:00pm
Prof. Jason Glenn (University of Colorado, Boulder)

Carbon monoxide (CO) has been the primary tracer of cold molecular gas mass and dynamics in galaxies because H_2, the dominant species, lacks a permanent dipole moment.  Prior to the Herschel Space Observatory, CO observations were limited predominantly to the lowest-lying rotational transitions

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