activity
19932026
most citedElectron-positron pairs in physics and astrophysics: from heavy nuclei to black holes

491 citations · 3.1k across the 187 of their papers we have counts for

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49 papers · 1 filter

astro-ph2008★ 8 cited

Dyadosphere formed in gravitational collapse

Remo Ruffini, She-Sheng Xue

We first recall the concept of Dyadosphere (electron-positron-photon plasma around a formed black holes) and its motivation, and recall on (i) the Dirac process: annihilation of el…

astro-ph2008★ 1 cited

Neutral nuclear core vs super charged one

M. Rotondo, R. Ruffini, S. -S. Xue

Based on the Thomas-Fermi approach, we describe and distinguish the electron distributions around extended nuclear cores: (i) in the case that cores are neutral for electrons bound…

astro-ph2008★ 12 cited

On Gamma-Ray Bursts

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +12

(Shortened) We show by example how the uncoding of Gamma-Ray Bursts (GRBs) offers unprecedented possibilities to foster new knowledge in fundamental physics and in astrophysics. Af…

astro-ph2008

Theoretical interpretation of "long" and "short" GRBs

Carlo Luciano Bianco, Maria Grazia Bernardini, Letizia Caito +6

Within the "fireshell" model we define a "canonical GRB" light curve with two sharply different components: the Proper-GRB (P-GRB), emitted when the optically thick fireshell of el…

astro-ph2008

Theoretical interpretation of luminosity and spectral properties of GRB 031203

Carlo Luciano Bianco, Maria Grazia Bernardini, Pascal Chardonnet +3

We show how an emission endowed with an instantaneous thermal spectrum in the co-moving frame of the expanding fireshell can reproduce the time-integrated GRB observed non-thermal…

astro-ph2007★ 16 cited

Vacuum polarization and plasma oscillations

R. Ruffini, G. V. Vereshchagin, S. -S. Xue

We evidence the existence of plasma oscillations of electrons-positron pairs created by the vacuum polarization in an uniform electric field with E < Ec. Our general treatment, enc…

astro-ph2007★ 11 cited

The Blackholic energy and the canonical Gamma-Ray Burst

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +9

We outline the main results of our GRB model, based on the three interpretation paradigms we proposed in July 2001, comparing and contrasting them with the ones in the current lite…

astro-ph2007★ 7 cited

The role of GRB 031203 in clarifying the astrophysical GRB scenario

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +7

The luminosity and the spectral distribution of the afterglow of GRB 031203 have been presented within our theoretical framework, which envisages the GRB structure as composed by a…

astro-ph2007★ 1 cited

GRB 050315: A step toward the uniqueness of the overall GRB structure and the true nature of long GRBs

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +4

Using the Swift data of GRB 050315, we progress on the uniqueness of our theoretically predicted Gamma-Ray Burst (GRB) structure as composed by a proper-GRB (P-GRB), emitted at the…

astro-ph2007

GRB970228 as a prototype for short GRBs with afterglow

Maria Grazia Bernardini, Carlo Luciano Bianco, Letizia Caito +7

GRB970228 is analyzed as a prototype to understand the relative role of short GRBs and their associated afterglows, recently observed by Swift and HETE-II. Detailed theoretical com…

astro-ph2007

Equations of motion, initial and boundary conditions for GRB

Carlo Luciano Bianco, Remo Ruffini, Gregory Vereshchagin +1

We compare and contrast the different approaches to the optically thick adiabatic phase of GRB all the way to the transparency. Special attention is given to the role of the rate e…

astro-ph2007

Theoretical predictions of spectral evolution of short GRBs

Federico Fraschetti, Remo Ruffini, Luca Vitagliano +1

We present the properties of spectrum of radiation emitted during gravitational collapse in which electromagnetic field strengths rise over the critical value for pair cre…

astro-ph2006★ 18 cited

Electrodynamics for Nuclear Matter in Bulk

Remo Ruffini, Michael Rotondo, She-Sheng Xue

A general approach to analyze the electrodynamics of nuclear matter in bulk is presented using the relativistic Thomas-Fermi equation generalizing to the case of $N \simeq (m_{\rm…

astro-ph2006

GRB 050315: A step toward the uniqueness of the overall GRB structure

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +4

Using the Swift data of GRB 050315, we progress on the uniqueness of our theoretically predicted Gamma-Ray Burst (GRB) structure as composed by a proper-GRB (P-GRB), emitted at the…

astro-ph2006

Baryonic loading and e^+e^- rate equation in GRB sources

Remo Ruffini, Carlo Luciano Bianco, Gregory Vereshchagin +1

The expansion of the electron-positron plasma in the GRB phenomenon is compared and contrasted in the treatments of Meszaros, Laguna and Rees, of Shemi, Piran and Narayan, and of R…

astro-ph2006★ 1 cited

Theoretical Interpretation of GRB 031203 and URCA-3

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +3

We present an analysis of the late time X-ray emission (URCA-3) connected with GRB 031203 and SN 2003lw.

astro-ph2006

GRB 050315: A step in the proof of the uniqueness of the overall GRB structure

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +4

Using the Swift data of GRB 050315, we progress in proving the uniqueness of our theoretically predicted Gamma-Ray Burst (GRB) structure as composed by a proper-GRB, emitted at the…

astro-ph2005★ 30 cited

Theoretical interpretation of luminosity and spectral properties of GRB 031203

Maria Grazia Bernardini, Carlo Luciano Bianco, Pascal Chardonnet +3

The X and gamma-ray observations of the source GRB 031203 by INTEGRAL are interpreted within our theoretical model. In addition to a complete space-time parametrization of the GRB,…

astro-ph2005★ 2 cited

On the vacuum fluctuations and the cosmological constant: Comment on the paper by T.Padmanabhan

V. G. Gurzadyan, S. -S. Xue

The formula for the dark energy, derived by Padmanabhan in a recent Letter to Editor (Class.Quantum Grav. September 2005, the formula given in its Abstract), was actually derived 4…

astro-ph2005

Extracting energy from black holes: "long" and "short" GRBs and their astrophysical settings

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +6

The introduction of the three interpretational paradigms for Gamma-Ray Bursts (GRBs) and recent progress in understanding the X- and gamma ray luminosity in the afterglow allow us…

astro-ph2005★ 11 cited

The Blackholic energy: long and short Gamma-Ray Bursts (New perspectives in physics and astrophysics from the theoretical understanding of Gamma-Ray Bursts, II)

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +5

[...] We turn then to the theoretical developments in the short GRBs: we first report some progress in the understanding the dynamical phase of collapse, the mass-energy formula an…

astro-ph2005★ 16 cited

Black hole physics and astrophysics: The GRB-Supernova connection and URCA-1 - URCA-2

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +5

We outline the confluence of three novel theoretical fields in our modeling of Gamma-Ray Bursts (GRBs): 1) the ultrarelativistic regime of a shock front expanding with a Lorentz ga…

astro-ph2005★ 1 cited

Evidence for isotropic emission in GRB991216

Remo Ruffini, Maria Grazia Bernardini, Carlo Luciano Bianco +3

The issue of the possible presence or absence of jets in GRBs is here re-examined for GRB991216. We compare and contrast our theoretically predicted afterglow luminosity in the 2-1…

astro-ph2004★ 22 cited

Emergence of a filamentary structure in the fireball from GRB spectra

Remo Ruffini, Carlo Luciano Bianco, Pascal Chardonnet +3

It is shown that the concept of a fireball with a definite filamentary structure naturally emerges from the analysis of the spectra of Gamma-Ray Bursts (GRBs). These results, made…