126 citations · 1.8k across the 84 of their papers we have counts for
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The temperature of the diffuse HI in the Milky Way II: Gaussian decomposition of the HI 21 cm absorption spectra
Nirupam Roy, Nissim Kanekar, Jayaram N. Chengalur
We discuss physical conditions in Galactic neutral hydrogen based on deep, high velocity resolution interferometric HI 21 cm absorption spectroscopy towards 33 compact extra-galact…
The temperature of the diffuse HI in the Milky Way I: High resolution HI 21 cm absorption studies
Nirupam Roy, Nissim Kanekar, Robert Braun +1
We have carried out deep, high velocity resolution, interferometric Galactic HI 21 cm absorption spectroscopy towards 32 compact extra-galactic radio sources with the Giant Metrewa…
Accurate measurement of the HI column density from HI 21cm absorption-emission spectroscopy
Jayaram N. Chengalur, Nissim Kanekar, Nirupam Roy
We present a detailed study of an estimator of the HI column density, based on a combination of HI 21cm absorption and HI 21cm emission spectroscopy. This "isothermal" estimate is…