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

2k citations

Showing 2014 · astro-ph.HEShow all

12 papers · 2 filters

astro-ph.HE2014★ 39 cited

Accretion and ejection in black-hole X-ray transients

N. D. Kylafis, T. M. Belloni

Aims: We summarize the current observational picture of the outbursts of black-hole X-ray transients (BHTs), based on the evolution traced in a hardness-luminosity diagram (HLD), a…

astro-ph.HE2014★ 32 cited

Population statistics of beamed sources. II: Evaluation of Doppler factor estimates

I. Liodakis, V. Pavlidou

In a companion paper we presented a statistical model for the blazar population, consisting of distributions for the unbeamed radio luminosity function and the Lorentz factor distr…

astro-ph.HE2014★ 20 cited

Population statistics of beamed sources. I: A new model for blazars

I. Liodakis, V. Pavlidou

Observations of blazar jets are shrouded in relativistic effects, thus hindering our understanding of their intrinsic properties and dominant physical processes responsible for the…

astro-ph.HE2014★ 43 cited

Long-term variability of high-mass X-ray binaries. I.Photometry

P. Reig, J. Fabregat

We present photometric observations of the field around the optical counterparts of high-mass X-ray binaries. Our aim is to study the long-term photometric variability in correlati…

astro-ph.HE2014

The connection between the 15 GHz radio and gamma-ray emission in blazars

W. Max-Moerbeck, J. L. Richards, T. Hovatta +5

Since mid-2007 we have carried out a dedicated long-term monitoring programme at 15 GHz using the Owens Valley Radio Observatory 40 meter telescope. One of the main goals of this p…

astro-ph.HE2014★ 23 cited

Spectral energy distributions of the BL Lac PKS 2155-304 from XMM-Newton

Jai Bhagwan, Alok C. Gupta, I. E. Papadakis +1

We have used all 20 archival XMM-Newton observations of PKS 2155-304 with simultaneous X-ray and UV/optical data to study its long term flux and spectral variability. We find signi…

astro-ph.HE2014★ 21 cited

Early-time polarized optical light curve of GRB 131030A

O. G. King, D. Blinov, D. Giannios +23

We report the polarized optical light curve of a gamma-ray burst afterglow obtained using the RoboPol instrument. Observations began 655 seconds after the initial burst of gamma-ra…

astro-ph.HE2014★ 161 cited

Time-correlation between the radio and gamma-ray activity in blazars and the production site of the gamma-ray emission

W. Max-Moerbeck, T. Hovatta, J. L. Richards +12

In order to determine the location of the gamma-ray emission site in blazars, we investigate the time-domain relationship between their radio and gamma-ray emission. Light-curves f…

astro-ph.HE2014★ 9 cited

Discovery of X-ray pulsations in the Be/X-ray binary IGR J21343+4738

P. Reig, A. Zezas

We report on the discovery of X-ray pulsations in the Be/X-ray binary IGR J21343+4738 during an XMM-Newton observation. We obtained a barycentric corrected pulse period of 320.35+-…

astro-ph.HE2014★ 19 cited

Active galactic nuclei synapses: X-ray versus optical classifications using artificial neural networks

O. Gonzalez-Martin, D. Diaz-Gonzalez, J. A. Acosta-Pulido +5

(Abridged) Many classes of active galactic nuclei (AGN) have been defined entirely throughout optical wavelengths while the X-ray spectra have been very useful to investigate their…

astro-ph.HE2014★ 130 cited

General relativistic modelling of the negative reverberation X-ray time delays in AGN

D. Emmanoulopoulos, I. E. Papadakis, M. Dovciak +1

We present the first systematic physical modelling of the time-lag spectra between the soft (0.3-1 keV) and the hard (1.5-4 keV) X-ray energy bands, as a function of Fourier freque…

astro-ph.HE2014★ 77 cited

Connection between optical and gamma-ray variability in blazars

T. Hovatta, V. Pavlidou, O. G. King +14

We use optical data from the Palomar Transient Factory (PTF) and the Catalina Real-Time Transient Survey (CRTS) to study the variability of gamma-ray detected and non-detected obje…