output
19952026
most citedUniaxial Strain in Graphene by Raman Spectroscopy: G peak splitting, Gruneisen Parameters and Sample Orientation

2k citations

Showing 2004 · astro-phShow all

6 papers · 2 filters

astro-ph2004★ 26 cited

Discovery of a Be/X-ray Binary Consistent with the Position of GRO J2058+42

Colleen A. Wilson, Martin C. Weisskopf, Mark H. Finger +4

GRO J2058+42 is a 195 s transient X-ray pulsar discovered in 1995 with BATSE. In 1996, RXTE located GRO J2058+42 to a 90% confidence error circle with a 4' radius. On 20 February 2…

astro-ph2004★ 34 cited

Excitation of low-frequency QPOs in black-hole accretion

Dimitrios Giannios, Henk C. Spruit

We study possible mechanisms of excitation of quasiperiodic oscillations in the accretion flow of black hole accreters in their hard spectral states, in the context of the `truncat…

astro-ph2004★ 17 cited

Multi-band optical micro-variability observations of the BL Lac object S4 0954+658

I. E. Papadakis, V. Samaritakis, P. Boumis +1

We have observed S4 0954+658 in the BVRI bands in 2001, and in the BI bands in 2002. The observations resulted in almost evenly sampled light curves, 3-8 hours long, with an averag…

astro-ph2004★ 45 cited

Spectra and time variability of galactic black-hole X-ray sources in the low/hard state

D. Giannios, N. D. Kylafis, D. Psaltis

we propose a jet model for the low/hard state of black-hole X-ray sources which explains a) the X-ray spectra, b) the timelag spectra, c) the increase in the amplitude (QPO and hig…

astro-ph2004★ 211 cited

Modelling the spectral energy distribution of galaxies. III. Attenuation of stellar light in spiral galaxies

Richard. J. Tuffs, Cristina C. Popescu, Heinrich J. Voelk +2

We present new calculations of the attenuation of stellar light from spiral galaxies using geometries for stars and dust which can reproduce the entire spectral energy distribution…

astro-ph2004★ 105 cited

Spectra of Poynting-flux powered GRB outflows

D. Giannios, H. C. Spruit

We investigate the production of the gamma-ray spectrum of a Poynting-flux dominated GRB ouflow. The very high magnetic field strengths (super-equipartition) in such a flow lead to…