398 citations · 5k across the 137 of their papers we have counts for
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Constraining the variation of fundamental constants using 18cm OH lines
Jayaram N. Chengalur, Nissim Kanekar
We describe a new technique to estimate variations in the fundamental constants using 18cm OH absorption lines. This has the advantage that all lines arise in the same species, all…
Detection of OH and wide HI absorption toward B0218+357
N. Kanekar, J. N. Chengalur, A. G. de Bruyn +1
We present deep GMRT OH and WSRT HI absorption spectra of the gravitational lens toward B0218+357. Both the 1665 MHz and 1667 MHz OH lines are clearly detected for the…
Kinematics of the dwarf irregular galaxy GR8
Ayesha Begum, Jayaram N. Chengalur
We present deep, high velocity resolution (~1.6 km/s) Giant Meterwave Radio Telescope HI 21cm synthesis images for the faint (M_B ~ -12.1) dwarf irregular galaxy GR8. We find that…
Kinematics of Extremely Faint Dwarf Galaxies
Ayesha Begum, Jayaram N. Chengalur
We present the results of deep, high velocity resolution (~1.6 km/s) Giant Meterwave Radio Telescope (GMRT) HI 21cm observations of extremely faint (M_B > -12.5) dwarf irregular ga…
Kinematics of the faintest gas rich galaxy in the Local Group: DDO210
Ayesha Begum, Jayaram N. Chengalur
We present deep, high velocity resolution (~1.6 km/s) Giant Meterwave Radio Telescope (GMRT) HI 21cm synthesis images of the faint (M_B ~ -10.6) local group dwarf galaxy DDO210. We…
The temperature of the WNM in the Milky Way
Nissim Kanekar, Ravi Subrahmanyan, Jayaram N. Chengalur +1
We report high spectral resolution Australia Telescope Compact Array HI 21 cm observations resulting in the detection of the warm neutral medium (WNM) of the Galaxy in absorption a…