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- National Centre for Radio AstrophysicsIN28 papers
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8 papers · 1 filter
Collective excitations in electron-hole bilayers
Gabor J Kalman, Peter Hartmann, Zoltan Donko +1
We report a combined analytic and Molecular Dynamics analysis of the collective mode spectrum of an electron-hole (bipolar) bilayer in the strong coupling quasi-classical limit. A…
A model for double notches and bifurcated components in radio profiles of pulsars and magnetars - Evidence for the parallel acceleration maser in pulsar magnetosphere
J. Dyks, B. Rudak, Joanna M. Rankin
Averaged pulse profiles of three nearby pulsars: B1929+10, J0437-4715 and B0950+08 exhibit unusual `double notches'. These W-like looking features consist of two adjacent V-shaped…
Polarons and Solitons in Jahn-Teller Systems
Dennis P. Clougherty
Using a semiclassical continuum model of an electron in a deformable molecular crystal, some properties of multicomponent generalizations of the polaron--``vector polarons''-- are…
Wavelength Tunability of Ion-bombardment Induced Ripples on Sapphire
Hua Zhou, Yiping Wang, Lan Zhou +6
A study of ripple formation on sapphire surfaces by 300-2000 eV Ar+ ion bombardment is presented. Surface characterization by in-situ synchrotron grazing incidence small angle x-ra…
The bright spiky emission of pulsar B0656+14
P. Weltevrede, G. A. E. Wright, B. W. Stappers +1
We present a detailed study of the single radio pulses of PSR B0656+14, a pulsar also known to be a strong pulsed source of high-energy emission. Despite the extensive studies at h…
Is pulsar B0656+14 a very nearby RRAT source?
P. Weltevrede, B. W. Stappers, J. M. Rankin +1
The recently discovered RRAT sources are characterized by very bright radio bursts which, while being periodically related, occur infrequently. We find bursts with the same charact…