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HI 21-centimetre emission from an ensemble of galaxies at an average redshift of one
Aditya Chowdhury, Nissim Kanekar, Jayaram Chengalur +2
The baryonic processes in galaxy evolution include gas infall onto galaxies to form neutral atomic hydrogen (HI), the conversion of HI to the molecular state (H), and, finally,…
Giant Metrewave Radio Telescope detections of two high-opacity HI 21cm absorbers at
Aditya Chowdhury, Nissim Kanekar, Jayaram Chengalur
We report the discovery of two remarkable high-opacity HI 21cm absorbers against low-luminosity active galactic nuclei (AGNs), at towards J0229+0044 and at …
ALMA [CII] 158um imaging of an HI-Selected Major Merger at z~4
J. Xavier Prochaska, Marcel Neeleman, Nissim Kanekar +1
We present high spatial-resolution (~2kpc) Atacama Large Millimeter/submillimeter Array (ALMA) observations of [CII] 158um and dust-continuum emission from a galaxy at z=3.7978 sel…
A Cold, Massive, Rotating Disk Galaxy 1.5 Billion Years after the Big Bang
Marcel Neeleman, J. Xavier Prochaska, Nissim Kanekar +1
Massive disk galaxies like the Milky Way are expected to form at late times in traditional models of galaxy formation, but recent numerical simulations suggest that such galaxies c…