## Marchal et al. (2019) – ROHSA: Regularized Optimization for Hyper-Spectral Analysis – Application to phase separation of 21 cm data

Extracting the multiphase structure of the neutral interstellar medium (ISM) is key to understand the star formation in galaxies. The radiative condensation of the diffuse warm neutral medium producing a

## Clark, Peek & Miville-Deschênes (2019) – The Physical Nature of Neutral Hydrogen Intensity Structure

We investigate the physical properties of structures seen in channel map observations of 21 cm neutral hydrogen (H I) emission. H I intensity maps display prominent linear structures that are

## Heiles et al. (2019) – The interstellar medium: the key component in galactic evolution and modern cosmology

The gases of the interstellar medium (ISM) possess orders of magnitude more mass than those of all the stars combined and are thus the prime component of the baryonic Universe.

## Koley & Roy (2018) – Estimating kinetic temperature from H I 21 cm absorption studies: correction for the turbulence broadening

Neutral hydrogen 21 cm transition is a useful tracer of the neutral interstellar medium. However, inferring physical condition from the observed 21 cm absorption and/or emission spectra is often not

## Lenz, Hensley & Doré (2017) – A New, Large-scale Map of Interstellar Reddening Derived from H I Emission

We present a new map of interstellar reddening, covering the 39% of the sky with low H I column densities ({N}{{H}{{I}}}< 4× {10}20 cm-2 or E(B-V)≈ 45 mmag) at 16\buildrel{

## Fukui et al. (2018) – Synthetic Observations of 21 cm H I Line Profiles from Inhomogeneous Turbulent Interstellar H I Gas with Magnetic Fields

We carried out synthetic observations of interstellar atomic hydrogen at 21 cm wavelength by utilizing the magnetohydrodynamic numerical simulations of the inhomogeneous turbulent interstellar medium. The cold neutral medium (CNM)

## 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

## Begum et al. (2010) – Compact H I Clouds from the GALFA-H I Survey

The Galactic Arecibo L-band Feed Array H I (GALFA-H I) survey is mapping the entire Arecibo sky at 21 cm, over a velocity range of -700 to +700 km s-1

## Koch et al. (2018) – Kinematics of the atomic ISM ifigun M33 on 80 pc scales

We present new L-band (1-2 GHz) observations of the nearby spiral galaxy M33 with 80 pc resolution obtained with the Karl G. Jansky Very Large Array. The H I observations,

## Chiang & Ménard (2018) – Extragalactic Imprints in Galactic Dust Maps

Extragalactic astronomy relies on the accurate estimation of source photometry corrected for Milky Way dust extinction. This has motivated the creation of a number of “Galactic” dust maps. We investigate

## Lockman et al. (2008) – The Smith Cloud: A High-Velocity Cloud Colliding with the Milky Way

New 21 cm H I observations made with the Green Bank Telescope show that the high-velocity cloud known as the Smith Cloud has a striking cometary appearance and many indications

## Liszt (2014) – N(H I)/E(B – V)

We explore the relationship between dust-emission derived reddening E(B – V) and atomic hydrogen column density N(H I) derived from 21 cm emission surveys. We consider measurements at galactic latitudes

## Thomson et al. (2018) – Ghost of a shell: magnetic fields of Galactic supershell GSH 006 – 15 + 7

We identify a counterpart to a Galactic supershell in diffuse radio polarization, and use this to determine the magnetic fields associated with this object. GSH 006 – 15 + 7

## Reach et al. (2017) – Variations between Dust and Gas in the Diffuse Interstellar Medium. III. Changes in Dust Properties

We study infrared emission of 17 isolated, diffuse clouds with masses of order {10}2 {M}&sun; to test the hypothesis that grain property variations cause the apparently low gas-to-dust ratios that

## Skalidis et al. (2018) – Local measurements of the mean interstellar polarization at high Galactic latitudes

Very little information exists concerning the properties of the interstellar medium (ISM)-induced starlight polarization at high Galactic latitudes. Future optopolarimetric surveys promise to fill this gap. We conduct a small-scale

## Murray et al. (2015) – The 21-SPONGE HI Absorption Survey I: Techniques and Initial Results

We present methods and results from “21 cm Spectral Line Observations of Neutral Gas with the EVLA” (21-SPONGE), a large survey for Galactic neutral hydrogen (H i) absorption with the

## Haud & Kalberla (2007) – Gaussian decomposition of H I surveys. III. Local H I

Aims:We investigate the properties of the 21-cm radio-lines of galactic neutral hydrogen by decomposing, the profiles of “The Leiden/Argentine/Bonn (LAB) Survey of Galactic H I” into Gaussian components. The width

## Braun & Kanekar (2005) – Tiny H I clouds in the local ISM

We report deep, high spectral resolution WSRT H I 21 cm observations of four high latitude compact radio sources, that have revealed a new population of tiny, discrete clouds in

## Mohan, Dwarakanath & Srinivasan (2004) – A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT: II. Results and Interpretation

We have carried out a sensitive high-latitude (|b| > 15?) HI 21 cm-line absorption survey towards 102 sources using the GMRT. With a 3sigma detection limit in optical depth of

## Mohan, Dwarakanath & Srinivasan (2004) – A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT: I. Observations and Spectra

We have used the Giant Meterwave Radio Telescope (GMRT) to measure the Galactic HI 21-cm line absorption towards 102 extragalactic radio continuum sources, located at high (|b| > 15?) Galactic

## 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

## Heiles (1982) – Temperatures and their variation within interstellar H I structures

Recent H I absorption surveys are used to derive H I temperatures T(H I) and their variation within a number of H I shells. In these shells T(H I) is

## Roy et al. (2013) – The temperature of the diffuse H I in the Milky Way – I. High resolution H I-21 cm absorption studies

We have carried out deep, high velocity resolution, interferometric Galactic H I-21 cm absorption spectroscopy towards 32 compact extragalactic radio sources with the Giant Metrewave Radio Telescope (GMRT) and the