Stanimirovic, Snezana ; Heiles, Carl ; Kanekar, Nissim (2007) Properties of the thinnest cold HI clouds in the diffuse interstellar medium In: Small Ionized and Neutral Structures in the Diffuse Interstellar Medium, 21-24 May 2006, Socorro, NM, United States.
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Official URL: https://inspirehep.net/conferences/978267
Abstract
We have obtained deep HI observations in the direction of 22 continuum sources without previously detected cold neutral medium (CNM). 18 CNM clouds were detected with the typical HI column density of 3×1018 cm-2. Our surprisingly high detection rate suggests that clouds with low HI column densities are quite common in the interstellar medium. These clouds appear to represent an extension of the traditional CNM cloud population, yet have sizes in hundreds to thousands of AUs. We present properties of the newly-detected CNM sample, and discuss several theoretical avenues important for understanding the production mechanisms of these clouds.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Source: | Copyright of this article belongs to Astronomical Society of the Pacific. |
| ID Code: | 118115 |
| Deposited On: | 14 May 2021 06:18 |
| Last Modified: | 14 May 2021 06:18 |
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