Výsledky vyhledávání - "Troland, Thomas H."

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Herschel dust emission as a probe of starless cores mass: MCLD 123.5+24.9 of the Polaris Flare

Autor: Wagle, Gururaj A., Troland, Thomas H., Ferland, Gary J., Abel, Nicholas P.

We present newly processed archival Herschel images of molecular cloud MCLD 123.5+24.9 in the Polaris Flare. This cloud contains five starless cores. Using the spectral synthesis code Cloudy, we explore uncertainties in the derivation of column densi

Externí odkaz: http://arxiv.org/abs/1504.06311

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Response to the Mouschovias-Tassis Comments on 'Testing Magnetic Star Formation Theory'

Autor: Crutcher, Richard M., Hakobian, Nicholas, Troland, Thomas H.

In this note we respond to Mouschovias and Kassis criticisms that our paper "Testing Magnetic Star Formation Theory" is flawed. We stand fully behind our paper.
Comment: 7 pages

Externí odkaz: http://arxiv.org/abs/0808.1150

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Testing Magnetic Star Formation Theory

Autor: Crutcher, Richard M., Hakobian, Nicholas, Troland, Thomas H.

Publikováno v: Astrophys.J.692:844-855,2009

We report here observations of the Zeeman effect in the 18-cm lines of OH in the envelope regions surrounding four molecular cloud cores toward which detections of B(LOS) have been achieved in the same lines, and evaluate the ratio of mass to magneti

Externí odkaz: http://arxiv.org/abs/0807.2862

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Magnetic Fields in Dark Cloud Cores: Arecibo OH Zeeman Observations

Autor: Troland, Thomas H., Crutcher, Richard M.

We have carried out an extensive survey of magnetic field strengths toward dark cloud cores in order to test models of star formation: ambipolar-diffusion driven or turbulence driven. The survey involved $\sim500$ hours of observing with the Arecibo

Externí odkaz: http://arxiv.org/abs/0802.2253

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