## Stanimirovic, Heiles & Kanekar (2007) – Properties of the Thinnest Cold HI clouds in the Diffuse Interstellar Medium

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 a typical HI column

## Heiles (1997) – Tiny-Scale Atomic Structure and the Cold Neutral Medium

We consider the tiny-scale atomic structure (TSAS) on scales of tens of astronomical units, which has been detected by 21 cm absorption lines against quasars with VLBI techniques, against pulsars

## Stanimirovic et al. (2010) – Arecibo Multi-epoch H I Absorption Measurements Against Pulsars: Tiny-scale Atomic Structure

We present results from multi-epoch neutral hydrogen (H I) absorption observations of six bright pulsars with the Arecibo telescope. Moving through the interstellar medium (ISM) with transverse velocities of 10-150

## Stanimirovic & Heiles (2005) – The Thinnest Cold H I Clouds in the Diffuse Interstellar Medium?

We confirm and discuss recently discovered cold H I clouds with column densities among the lowest ever detected. The column densities of the cold neutral medium (CNM) toward 3C 286