1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.1k papers
- European Organization for Nuclear ResearchCH1.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1k papers
- University of CagliariIT1k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1k papers
- Heidelberg UniversityDE998 papers
- National Institute for Subatomic PhysicsNL997 papers
- University of BirminghamGB974 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL967 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT956 papers
- University of LiverpoolGB935 papers
28 papers · 1 filter
XMM-Newton detects a relativistically broadened iron line in the spectrum of the ms X-ray pulsar SAX J1808.4-3658
A. Papitto, T. Di Salvo, A. D'Aì +5
We report on a 63-ks long XMM-Newton observation of the accreting millisecond pulsar SAX J1808.4-3658 during the latest X-ray outburst which started on September 21st 2008. The pn…
Analytical predictions of non-Gaussian distribution parameters for stellar plasmas
A. M. Scarfone, P. Quarati, G. Mezzorani +1
Stimulated by the recent debate on the physical relevance and on the predictivity of q-Gaussian formalism, we present specific analytical expressions for the parameters characteriz…
X-Ray Eclipse Time Delays in 4U2129+47
E. Bozzo, M. Falanga, A. Papitto +8
4U 2129+47 was discovered in the early 80's and classified as an accretion disk corona source due to its broad and partial X-ray eclipses. The 5.24 hr binary orbital period was inf…
Precise determination of orbital parameters in system with slowly drifting phases: application to the case of XTE J1807-294
A. Riggio, T. Di Salvo, L. Burderi +4
We describe a timing technique that allows to obtain precise orbital parameters of an accreting millisecond pulsar in those cases in which intrinsic variations of the phase delays…
Orbital Evolution of an Accreting Millisecond Pulsar: Witnessing the Banquet of a Hidden Black Widow?
T. Di Salvo, L. Burderi, A. Riggio +2
We have performed a timing analysis of all the four X-ray outbursts from the accreting millisecond pulsar SAX J1808.4-3658 observed so far by the PCA on board RXTE. For each of the…
BeppoSAX observation of 4U 1705-44: detection of hard X-ray emission in the soft state
S. Piraino, A. Santangelo, T. Di Salvo +4
4U 1705-44 is one of the best studied type I X-ray burster and atoll sources. Since it covers a wide range in luminosity (from a few to 50 x 10^{36} erg s^{-1}) and shows clear spe…
Modified Debye-Huckel Electron Shielding and Penetration Factor
P. Quarati, A. M. Scarfone
Screened potential, modified by non standard electron cloud distributions responsible for the shielding effect on fusion of reacting nuclei in astrophysical plasmas, is derived. Th…
On the maximum efficiency of the propeller mass-ejection mechanism
M. Falanga, E. Bozzo, L. Stella +3
Aims. We derive simple estimates of the maximum efficiency with which matter can be ejected by the propeller mechanism in disk-fed, rotating magnetic neutron stars. Some binary evo…
Order in the Chaos: Spin-up and Spin-down during the 2002 Outburst of SAX J1808.4-3658
L. Burderi, T. Di Salvo, M. T. Menna +2
We present a timing analysis of the 2002 outburst of the accreting millisecond pulsar SAX J1808.4-3658. A study of the phase delays of the entire pulse profile shows a behavior tha…
Timing of the Accreting Millisecond Pulsar XTE J1814-338
A. Papitto, T. Di Salvo, L. Burderi +3
We present a precise timing analysis of the accreting millisecond pulsar XTE J1814-338 during its 2003 outburst, observed by RXTE. A full orbital solution is given for the first ti…
Timing of millisecond pulsars in NGC 6752 - II. Proper motions of the pulsars in the cluster outskirts
A. Corongiu, A. Possenti, A. G. Lyne +4
Exploiting a five-year span of data, we present improved timing solutions for the five millisecond pulsars known in the globular cluster NGC 6752. They include proper motion determ…
The Parkes multibeam pulsar survey: VI. Discovery and timing of 142 pulsars and a Galactic population analysis
D. R. Lorimer, A. J. Faulkner, A. G. Lyne +11
[ABRIDGED] We present the discovery and follow-up observations of 142 pulsars found in the Parkes 20-cm multibeam pulsar survey of the Galactic plane. These new discoveries bring t…
Search for radio pulsations in four Anomalous X-ray Pulsars and discovery of two new pulsars
M. Burgay, N. Rea, G. L. Israel +5
We report on observations of four southern Anomalous X-ray Pulsars, (1RXS J170849.0-400910, 1E 1048.1-5937, 1E 1841-045 and AX J1845-0258), obtained at 1.4 GHz using the Parkes rad…
Modelling the closest double degenerate system RXJ0806.3+1527 and its decreasing period
F. D'Antona, P. Ventura, L. Burderi +1
In the hypothesis that the 5.4m binary RXJ0806.3+1527 consists of a low mass helium white dwarf (donor) transferring mass towards its more massive white dwarf companion (primary),…
Evidence for T Tauri-like emission in the EXor V1118 Ori from near-IR and X-ray data
D. Lorenzetti, T. Giannini, L. Calzoletti +6
We present a near-IR study of the EXor variable V1118 Ori, performed by following a slightly declining phase after a recent outburst. In particular, the near-IR (0.8 - 2.3 micron)…
Nuclear astrophysical plasmas: ion distribution functions and fusion rates
Marcello Lissia, Piero Quarati
This article illustrates how very small deviations from the Maxwellian exponential tail, while leaving unchanged bulk quantities, can yield dramatic effects on fusion reaction rate…
The Double Pulsar System J0737-3039: Modulation of the radio emission from B by radiation from A
M. A. McLaughlin, M. Kramer, A. G. Lyne +9
We have analyzed single pulses from PSR J0737-3039B, the 2.8-s pulsar in the recently discovered double pulsar system, using data taken with the Green Bank Telescope at 820 and 140…
Ultra-High Energy Cosmic Rays from Quasar Remnants
C. Isola, G. Sigl, G. Bertone
One of the models recently proposed to explain the origin of the ultra high energy cosmic rays assumes that these particles may be accelerated by the electromotive force around pre…
Measurements of light transmission in deep sea with the AC9 trasmissometer
Antonio Capone, Tullio Digaetano, Antonio Grimaldi +15
The NEMO Collaboration aims to construct an underwater Cerenkov detector in the Mediterranean Sea, able to act as a neutrino telescope. One of the main tasks of this project, which…
Helioseismology and Beryllium neutrino
B. Ricci, F. L. Villante, M. Lissia
We derive a lower limit on the Beryllium neutrino flux on earth, , in the absence of oscillations, by using helioseismic data, the B-neutr…
Solar neutrino fluxes with arbitrary He3 mixing
V. Berezinsky, G. Fiorentini, M. Lissia
The He3 abundance is not constrained by helioseismic data. Mixing of He3 inside the solar core by processes not included in the solar standard model (SSM) has been recently propose…
Helioseismic tests of diffusion theory
G. Fiorentini, M. Lissia, B. Ricci
We present a quantitative estimate of the accuracy of the calculated diffusion coefficients, by comparing predictions of solar models with observational data provided by helioseism…
Anomalous diffusion modifies solar neutrino fluxes
G. Kaniadakis, A. Lavagno, M. Lissia +1
Density and temperature conditions in the solar core suggest that the microscopic diffusion of electrons and ions could be nonstandard: Diffusion and friction coefficients are ener…
Solar neutrinos: beyond standard solar models
V. Castellani, S. Degl'Innocenti, G. Fiorentini +2
After a short survey of the physics of solar neutrinos, giving an overview of hydrogen burning reactions, predictions of standard solar models and results of solar neutrino experim…