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Cooling Limits from the Youngest Neutron Stars

Patrick Slane

Harvard-Smithsonian Center for Astrophysics

Abstract:

One of the primary means of constraining the cooling properties of neutron stars, and thus the structure and composition of their deep interiors, is through measurements of their X-ray properties. The youngest neutron stars provided some of the strongest constraints, particularly in cases where the total luminosity is low. However, the X-ray emission from young neutron stars is often dominated by nonthermal emission. Thus, high-sensitivity observations and subsequent spectral modeling are necessary to confidently identify the emission, or limits to the emission, directly from the stellar surface. Here I summarize recent work on establishing the temperature properties of the youngest neutron stars.

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