68 citations · 747 across the 45 of their papers we have counts for
7 papers · 1 filter
Superdisks in Radio Galaxies: Jet-Wind Interactions
Gopal-Krishna, Paul J. Wiita, Santosh Joshi
Taking a clue from their sharp-edged (strip-like) morphology observed in several cases, a new mechanism is proposed for the formation of the emission gaps seen between the radio lo…
CLOUDS search for variability in brown dwarf atmospheres
B. Goldman, M. C. Cushing, M. S. Marley +21
Context: L-type ultra-cool dwarfs and brown dwarfs have cloudy atmospheres that could host weather-like phenomena. The detection of photometric or spectral variability would provid…
A giant radio jet ejected by an ultramassive black hole in a single-lobed radio galaxy
Joydeep Bagchi, Gopal-Krishna, Marita Krause +1
We report the discovery of a very unusual, highly asymmetric radio galaxy whose radio jet, the largest yet detected, emits strongly polarized synchrotron radiation and can be trace…
The Nainital-Cape Survey -- II:Report for pulsation in five chemically peculiar A-type stars and presentation of 140 null results
Santosh Joshi, D. L. Mary, Peter Martinez +5
To search photometric variability in chemically peculiar A type stars in the northern hemisphere. High-speed photometric observations of Ap and Am star candidates have been carried…
Discovery of unusual pulsations in the cool, evolved Am stars HD 98851 and HD 102480
Santosh Joshi, V. Girish, R. Sagar +6
The chemically peculiar (CP) stars HD 98851 and HD 102480 have been discovered to be unusual pulsators during the ``Naini Tal Cape Survey'' programme to search for pulsational vari…
Discover of the "missing" mode in HR 1217 by the Whole Earth Telescope
D. W. Kurtz, S. D. Kawaler, R. L. Riddle et al.
HR 1217 is a prototypical rapidly oscillating Ap star that has presented a test to the theory of nonradial stellar pulsation. Prior observations showed a clear pattern of five mode…