SFERA Archivio dei prodotti della Ricerca dell'Università di Ferrara

TITARCHUK, Lev
 Distribuzione geografica
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Continente #
NA - Nord America 6.775
EU - Europa 1.244
AS - Asia 1.180
SA - Sud America 18
OC - Oceania 2
AF - Africa 1
Continente sconosciuto - Info sul continente non disponibili 1
Totale 9.221
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Nazione #
US - Stati Uniti d'America 6.763
CN - Cina 495
UA - Ucraina 398
TR - Turchia 397
SG - Singapore 265
DE - Germania 221
GB - Regno Unito 189
IT - Italia 173
SE - Svezia 99
FI - Finlandia 93
BE - Belgio 18
FR - Francia 16
BR - Brasile 13
CA - Canada 10
LT - Lituania 8
NL - Olanda 5
BG - Bulgaria 4
RU - Federazione Russa 4
AT - Austria 3
HK - Hong Kong 3
ID - Indonesia 3
IN - India 3
AU - Australia 2
CL - Cile 2
IL - Israele 2
IR - Iran 2
JP - Giappone 2
MX - Messico 2
PH - Filippine 2
RO - Romania 2
SI - Slovenia 2
VN - Vietnam 2
AR - Argentina 1
BH - Bahrain 1
CH - Svizzera 1
DK - Danimarca 1
EC - Ecuador 1
EU - Europa 1
GR - Grecia 1
HR - Croazia 1
IQ - Iraq 1
KG - Kirghizistan 1
KZ - Kazakistan 1
LU - Lussemburgo 1
LV - Lettonia 1
MD - Moldavia 1
PE - Perù 1
RS - Serbia 1
SK - Slovacchia (Repubblica Slovacca) 1
ZA - Sudafrica 1
Totale 9.221
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Città #
Fairfield 1.025
Woodbridge 890
Houston 610
Ashburn 444
Jacksonville 433
Seattle 418
Ann Arbor 385
Wilmington 368
Santa Clara 353
Cambridge 347
Chandler 285
Singapore 156
Izmir 153
Nanjing 134
Princeton 118
San Diego 98
Milan 87
Addison 82
Beijing 76
Boardman 75
Shenyang 40
Nanchang 32
Falls Church 28
Shanghai 28
Hebei 26
Bremen 22
San Mateo 21
Brussels 18
Changsha 18
Jiaxing 18
Philadelphia 18
Washington 17
Falkenstein 16
London 16
Los Angeles 16
Minneapolis 16
Norwalk 15
Des Moines 14
Tianjin 14
Zhengzhou 14
Indiana 12
Mountain View 12
Jinan 11
Kunming 11
New York 9
Ningbo 9
Rome 9
Auburn Hills 8
Frankfurt am Main 8
Kilburn 8
Toronto 8
Verona 8
Helsinki 7
Guangzhou 6
Orange 6
Edinburgh 5
Hangzhou 5
Amsterdam 4
Atlanta 4
Changchun 4
Redwood City 4
Sofia 4
Taizhou 4
Bitonto 3
Bologna 3
Chiswick 3
Ferrara 3
Hounslow 3
Lanzhou 3
Rivarolo del Re ed Uniti 3
Taiyuan 3
Tappahannock 3
Vienna 3
Andover 2
Ardabil 2
Castel Maggiore 2
Chicago 2
Cormeilles-en-Parisis 2
Dallas 2
Florence 2
Hong Kong 2
Jakarta 2
Jinhua 2
New Bedfont 2
Pavia 2
Portici 2
Qingdao 2
Ragusa 2
Redmond 2
Santiago 2
Shenzhen 2
Stockholm 2
Sydney 2
Tel Aviv 2
Tokyo 2
Acton 1
Almaty 1
Andrelândia 1
Athens 1
Augusta 1
Totale 7.189
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Nome #
Mass Determination of Black Holes in LMC X-1 and Nova MUSCAE 1991 from Their High-Energy Spectra 151
Correlations between Kilohertz Quasi-periodic Oscillations and Low-Frequency Features Attributed to Radial Oscillations and Diffusive Propagation in the Viscous Boundary Layer around a Neutron Star 148
Black Hole Mass of the Ultraluminous X-Ray Source M82 X-1 138
Broad Redshifted Line as a Signature of Outflow 137
A New Comptonization Model for Weakly Magnetized, Accreting Neutron Stars in Low-Mass X-Ray Binaries 137
X-Ray Spectral Formation in a Converging Fluid Flow: Spherical Accretion into Black Holes 133
Determination of Black Hole Mass in Cygnus X-1 by Scaling of Spectral Index-QPO Frequency Correlation 133
Kilohertz Quasi-periodic Oscillations in Neutron Star Binaries Modeled as Keplerian Oscillations in a Rotating Frame of Reference 133
Evolution of Energy and Power Spectra in XTE J1650-500 with BeppoSAX 132
Discovery of Photon Index Saturation in the Black Hole Binary GRS 1915+105 132
Generalized Comptonization models and application to the recent high-energy observations 132
An Upscattering Spectral Formation Model for the Prompt Emission of Gamma-Ray Bursts 130
Comptonization Models and Spectroscopy of X-Ray and Gamma-Ray Sources: A Combined Study by Monte Carlo and Analytical Methods 126
Average hard X-ray emission from NS LMXBs: observational evidence of different spectral states in NS LMXBs 125
On the Low and High Frequency Correlation in Quasi-periodic Oscillations among White Dwarf, Neutron Star, and Black Hole Binaries 125
Timing and Spectral Properties of X-Ray Emission from the Converging Flows onto a Black Hole: Monte Carlo Simulations 125
BeppoSAX Observations of the Power and Energy Spectral Evolution in the Black Hole Candidate XTE J1650-500 125
δ-Invariant for Quasi-periodic Oscillations and Physical Parameters of the 4U 0614+09 Binary 124
Downscattering Due to Wind Outflows in Compact X-Ray Sources: Theory and Interpretation 124
Timing Spectroscopy of Quasi-Periodic Oscillations in the Low-Mass X-Ray Neutron Star Binaries 124
A Method for Black Hole Mass Determination in Accretion-powered X-Ray Sources 124
On the stability of the thermal Comptonization index in neutron star low-mass X-ray binaries in their different spectral states 124
Three Type I X-Ray Bursts from Cygnus X-2: Application of Analytical Models for Neutron Star Mass and Radius Determination 123
Why Is It Difficult to Detect a Millisecond Pulsar in Neutron Star X-Ray Binaries? 123
On the specta of X-ray bursters: Expansion and contraction stages 122
Comptonization signatures in the prompt emission of Gamma Ray Bursts 122
Power Spectra of Black Holes and Neutron Stars as a Probe of Hydrodynamic Structure of the Source: Diffusion Theory and Its Application to Cygnus X-1 and Cygnus X-2 X-Ray Observations 122
Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics 122
Possible physical explanation of the intrinsic E p, i-"intensity" correlation commonly used to "standardize" GRBs 122
The High-Energy Spectra of Accreting Black Holes: Observational Evidence for Bulk-Motion Infall 121
The Global Normal Disk Oscillations and the Persistent Low-Frequency Quasi-periodic Oscillations in X-Ray Binaries 121
Temporal and Spectral Properties of Comptonized Radiation and Its Applications 120
Phase Difference and Coherence as Diagnostics of Accreting Compact Sources 118
The Bursting Behavior of 4U 1728-34: The Parameters of a Neutron Star and the Geometry of a Neutron Star-Disk System 116
The Extended Power Law as an Intrinsic Signature for a Black Hole 116
The Observed Galactic Annihilation Line: Possible Signature of Accreting Small-Mass Black Holes in the Galactic Center 116
Millisecond X-Ray Variability from an Accreting Neutron Star System 116
Observational Signatures of Black Holes: Spectral and Temporal Features of XTE J1550-564 116
New Evidence for a Black Hole in the Compact Binary Cygnus X-3 115
Spectral Index and Quasi-Periodic Oscillation Frequency Correlation in Black Hole Sources: Observational Evidence of Two Phases and Phase Transition in Black Holes 114
Rayleigh-Taylor Gravity Waves and Quasi-periodic Oscillation Phenomena in X-Ray Binaries 114
Do the Spectra of Soft X-Ray Transients Reveal Bulk-Motion Inflow Phenomenon? 114
Mechanisms for High-Frequency Quasi-periodic Oscillations in Neutron Star and Black Hole Binaries 114
Outflows near an Accreting Black Hole: Ionization and Temperature Structures 112
A Proposed Italian Contribution for the Mirax Scientific Payload 112
Disk Diffusion Propagation Model for the Outburst of XTE J1118+480 111
Kilohertz Quasi-periodic Intensity Oscillations from 4U 1636-536 111
Numerical solution of the radiative transfer equation: X-ray spectral formation from cylindrical accretion onto a magnetized neutron star 110
Spectral Properties of Accretion Disks around Galactic and Extragalactic Black Holes 109
Time Variation of Emissions from Comptonization Sources 109
On the Nature of the Flux Variability during an Expansion Stage of a Type I X-Ray Burst: Constraints on Neutron Star Parameters for 4U 1820-30 109
Effects of Downscattering on the Continuum and Line Spectra in a Powerful Wind Environment: Monte Carlo Simulations, Analytical Results, and Data Analysis 109
On the Nonrelativistic Origin of Red-skewed Iron Lines in Cataclysmic Variable, Neutron Star, and Black Hole Sources 108
On the pair-instability supernovae and gamma-ray burst phenomenon 108
On the Constancy of the Photon Index of X-Ray Spectra of 4U 1728-34 through All Spectral States 108
Time Resolved Spectra of GRBs Simultaneously Detected with BATSE andBeppoSAXWFCs 108
Implementation of a public BeppoSAX GRBM online catalogue and scientific exploitation of the GRBM data archive 106
Power-Law Spectra as a Result of Comptonization of the Soft Radiation in a Plasma Cloud 106
On the Nature of the Compact Object in SS 433: Observational Evidence of X-ray Photon Index Saturation 106
Formation of X-ray spectra in close binary systems - Reflection effects 104
Supergiant Fast X-Ray Transients: Swift Results and Theoretical Progress 104
Implication of the Observed Spectral Cutoff Energy Evolution in XTE J1550-564 103
The Converging Inflow Spectrum Is an Intrinsic Signature for a Black Hole: Monte Carlo Simulations of Comptonization on Free-falling Electrons 103
Testing a Scale-independent Method to Measure the Mass of Black Holes 101
On the Spectral Slopes of Hard X-Ray Emission from Black Hole Candidates 100
Power-Law Tails from Dynamical Comptonization in Converging Flows 100
Evidence for a Neutron Star in the non-pulsating massive X-ray binary 4U2206+54 98
How to Distinguish Neutron Star and Black Hole X-Ray Binaries? Spectral Index and Quasi-Periodic Oscillation Frequency Correlation 97
Spectral Index as a Function of Mass Accretion Rate in Black Hole Sources: Monte Carlo Simulations and an Analytical Description 96
Hard X-rays from NGC 4151: A thermal origin? 95
Effects of Resonance in Quasi-periodic Oscillators of Neutron Star Binaries 95
Normal-Branch Quasi-periodic Oscillations in Scorpius X-1: Viscous Oscillations of a Spherical Shell Near the Neutron Star 94
s M82 X-1 Really an Intermediate-Mass Black Hole? X-Ray Spectral and Timing Evidence 93
Comptonization of X-rays in plasma cloud. Typical radiation spectra 90
Spherical accretion onto neutron stars and black holes 85
Comprehensive Analysis of RXTE Data from Cygnus X-1: Spectral Index-Quasi-Periodic Oscillation Frequency-Luminosity Correlations 84
Comptonization of low-frequency radiation in accretion disks Angular distribution and polarization of hard radiation 81
A Chandra View of NGC 3621: A Bulgeless Galaxy Hosting an AGN in Its Early Phase? 79
B-Field Determination from Magnetoacoustic Oscillations in Kilohertz Quasi-periodic Oscillation Neutron Star Binaries: Theory and Observations 77
Discovery of Red-skewed K α Iron Line in Cyg X-2 with Suzaku 74
Soft Phase Lags in the Millisecond X-Ray Pulsar SAX J1808.4-3658 71
Reflection and reprocessing of X-ray source radiation by the atmosphere of the normal star in a binary system 66
On the distance and mass-radius relation of neutron stars in X-ray burst sources 58
Totale 9.259
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Categoria #
all - tutte 39.981
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 0
selected - selezionate 0
volume - volumi 0
Totale 39.981
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/2020678 0 0 0 0 0 0 0 213 167 155 107 36
2020/20211.072 105 103 46 139 59 133 25 146 19 140 107 50
2021/20221.178 37 138 119 30 72 55 57 57 41 65 118 389
2022/2023892 93 8 19 98 164 121 100 97 99 3 68 22
2023/2024377 53 68 28 13 34 33 19 29 6 3 8 83
2024/2025774 26 33 114 21 256 220 71 33 0 0 0 0
Totale 9.259