SFERA Archivio dei prodotti della Ricerca dell'Università di Ferrara

TITARCHUK, Lev
 Distribuzione geografica
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Continente #
NA - Nord America 8.867
AS - Asia 3.718
EU - Europa 1.737
SA - Sud America 665
AF - Africa 75
Continente sconosciuto - Info sul continente non disponibili 40
OC - Oceania 5
Totale 15.107
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Nazione #
US - Stati Uniti d'America 8.707
SG - Singapore 1.286
CN - Cina 986
BR - Brasile 473
TR - Turchia 421
UA - Ucraina 415
VN - Vietnam 309
DE - Germania 290
HK - Hong Kong 282
IT - Italia 261
GB - Regno Unito 236
FR - Francia 115
SE - Svezia 108
BD - Bangladesh 104
FI - Finlandia 99
RU - Federazione Russa 93
IN - India 83
CA - Canada 70
AR - Argentina 60
MX - Messico 42
JP - Giappone 40
CO - Colombia 36
IQ - Iraq 31
ID - Indonesia 30
ZA - Sudafrica 28
EC - Ecuador 25
PK - Pakistan 25
VE - Venezuela 22
BE - Belgio 19
ES - Italia 19
PH - Filippine 18
PL - Polonia 18
NL - Olanda 17
CL - Cile 16
MA - Marocco 15
UZ - Uzbekistan 15
PY - Paraguay 14
SA - Arabia Saudita 12
CR - Costa Rica 11
MY - Malesia 11
TN - Tunisia 11
AE - Emirati Arabi Uniti 10
JM - Giamaica 8
JO - Giordania 8
LT - Lituania 8
PE - Perù 7
HN - Honduras 6
KE - Kenya 6
KZ - Kazakistan 6
UY - Uruguay 6
AT - Austria 5
NI - Nicaragua 5
AU - Australia 4
AZ - Azerbaigian 4
BG - Bulgaria 4
BO - Bolivia 4
EG - Egitto 4
GT - Guatemala 4
IL - Israele 4
KG - Kirghizistan 4
NP - Nepal 4
OM - Oman 4
TH - Thailandia 4
TT - Trinidad e Tobago 4
AL - Albania 3
DZ - Algeria 3
HR - Croazia 3
PS - Palestinian Territory 3
RO - Romania 3
SI - Slovenia 3
BA - Bosnia-Erzegovina 2
BB - Barbados 2
CZ - Repubblica Ceca 2
DK - Danimarca 2
DO - Repubblica Dominicana 2
ET - Etiopia 2
GE - Georgia 2
IR - Iran 2
KW - Kuwait 2
PA - Panama 2
PR - Porto Rico 2
SR - Suriname 2
AO - Angola 1
AW - Aruba 1
BH - Bahrain 1
BN - Brunei Darussalam 1
BS - Bahamas 1
BY - Bielorussia 1
CH - Svizzera 1
CI - Costa d'Avorio 1
EE - Estonia 1
EU - Europa 1
GA - Gabon 1
GI - Gibilterra 1
GR - Grecia 1
HU - Ungheria 1
LK - Sri Lanka 1
LU - Lussemburgo 1
LV - Lettonia 1
MD - Moldavia 1
Totale 15.056
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Città #
Fairfield 1.025
Woodbridge 890
Ashburn 791
Singapore 775
Houston 624
Jacksonville 435
Seattle 423
Santa Clara 393
San Jose 392
Ann Arbor 385
Wilmington 370
Cambridge 347
Chandler 285
Beijing 281
Hong Kong 279
Council Bluffs 213
Izmir 154
Nanjing 134
Princeton 118
Los Angeles 111
Ho Chi Minh City 110
San Diego 98
Milan 97
Addison 82
Boardman 76
Lauterbourg 71
Hanoi 65
Dallas 63
São Paulo 59
Buffalo 48
New York 48
Shenyang 40
Tokyo 39
Hefei 38
Chicago 37
Nanchang 32
Columbus 28
Falls Church 28
Shanghai 28
Hebei 26
London 25
Falkenstein 24
Bremen 22
Philadelphia 22
Rome 21
San Mateo 21
Toronto 21
Changsha 20
Da Nang 20
Frankfurt am Main 20
Mexico City 19
Montreal 19
Moscow 19
Brussels 18
Chennai 18
Jiaxing 18
Tianjin 18
Belo Horizonte 17
Minneapolis 17
Washington 17
Des Moines 16
Zhengzhou 16
Norwalk 15
Rio de Janeiro 15
Baghdad 14
Brooklyn 14
Munich 14
Orem 14
Atlanta 13
Haiphong 13
Indiana 12
Jinan 12
Johannesburg 12
Kunming 12
Mountain View 12
Phoenix 12
Amsterdam 11
Caracas 11
Dhaka 11
San José 11
Santiago 11
Tashkent 11
The Dalles 11
Denver 10
Stockholm 10
Warsaw 10
Auburn Hills 9
Guarulhos 9
Helsinki 9
Medellín 9
Ningbo 9
Redondo Beach 9
San Francisco 9
Verona 9
Amman 8
Asunción 8
Bogotá 8
Boston 8
Guangzhou 8
Kilburn 8
Totale 10.377
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Nome #
A New Comptonization Model for Weakly Magnetized, Accreting Neutron Stars in Low-Mass X-Ray Binaries 252
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 246
Discovery of Photon Index Saturation in the Black Hole Binary GRS 1915+105 242
Black Hole Mass of the Ultraluminous X-Ray Source M82 X-1 240
A Proposed Italian Contribution for the Mirax Scientific Payload 236
Possible physical explanation of the intrinsic E p, i-"intensity" correlation commonly used to "standardize" GRBs 230
Average hard X-ray emission from NS LMXBs: observational evidence of different spectral states in NS LMXBs 229
Broad Redshifted Line as a Signature of Outflow 229
Evolution of Energy and Power Spectra in XTE J1650-500 with BeppoSAX 225
On the stability of the thermal Comptonization index in neutron star low-mass X-ray binaries in their different spectral states 225
Comptonization signatures in the prompt emission of Gamma Ray Bursts 224
A Method for Black Hole Mass Determination in Accretion-powered X-Ray Sources 221
Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics 221
Comptonization Models and Spectroscopy of X-Ray and Gamma-Ray Sources: A Combined Study by Monte Carlo and Analytical Methods 216
On the Low and High Frequency Correlation in Quasi-periodic Oscillations among White Dwarf, Neutron Star, and Black Hole Binaries 215
Implementation of a public BeppoSAX GRBM online catalogue and scientific exploitation of the GRBM data archive 215
Determination of Black Hole Mass in Cygnus X-1 by Scaling of Spectral Index-QPO Frequency Correlation 215
BeppoSAX Observations of the Power and Energy Spectral Evolution in the Black Hole Candidate XTE J1650-500 214
An Upscattering Spectral Formation Model for the Prompt Emission of Gamma-Ray Bursts 213
Do the Spectra of Soft X-Ray Transients Reveal Bulk-Motion Inflow Phenomenon? 207
Mass Determination of Black Holes in LMC X-1 and Nova MUSCAE 1991 from Their High-Energy Spectra 205
The High-Energy Spectra of Accreting Black Holes: Observational Evidence for Bulk-Motion Infall 203
Numerical solution of the radiative transfer equation: X-ray spectral formation from cylindrical accretion onto a magnetized neutron star 196
Generalized Comptonization models and application to the recent high-energy observations 196
Comptonization of X-rays in plasma cloud. Typical radiation spectra 195
X-Ray Spectral Formation in a Converging Fluid Flow: Spherical Accretion into Black Holes 194
Timing Spectroscopy of Quasi-Periodic Oscillations in the Low-Mass X-Ray Neutron Star Binaries 194
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 193
Temporal and Spectral Properties of Comptonized Radiation and Its Applications 192
Comptonization of low-frequency radiation in accretion disks Angular distribution and polarization of hard radiation 190
Disk Diffusion Propagation Model for the Outburst of XTE J1118+480 188
δ-Invariant for Quasi-periodic Oscillations and Physical Parameters of the 4U 0614+09 Binary 187
Kilohertz Quasi-periodic Oscillations in Neutron Star Binaries Modeled as Keplerian Oscillations in a Rotating Frame of Reference 186
Timing and Spectral Properties of X-Ray Emission from the Converging Flows onto a Black Hole: Monte Carlo Simulations 185
Comprehensive Analysis of RXTE Data from Cygnus X-1: Spectral Index-Quasi-Periodic Oscillation Frequency-Luminosity Correlations 183
The Global Normal Disk Oscillations and the Persistent Low-Frequency Quasi-periodic Oscillations in X-Ray Binaries 180
Discovery of Red-skewed K α Iron Line in Cyg X-2 with Suzaku 180
Downscattering Due to Wind Outflows in Compact X-Ray Sources: Theory and Interpretation 179
Outflows near an Accreting Black Hole: Ionization and Temperature Structures 179
Phase Difference and Coherence as Diagnostics of Accreting Compact Sources 178
Observational Signatures of Black Holes: Spectral and Temporal Features of XTE J1550-564 178
Rayleigh-Taylor Gravity Waves and Quasi-periodic Oscillation Phenomena in X-Ray Binaries 176
Three Type I X-Ray Bursts from Cygnus X-2: Application of Analytical Models for Neutron Star Mass and Radius Determination 176
On the specta of X-ray bursters: Expansion and contraction stages 175
Why Is It Difficult to Detect a Millisecond Pulsar in Neutron Star X-Ray Binaries? 175
The Converging Inflow Spectrum Is an Intrinsic Signature for a Black Hole: Monte Carlo Simulations of Comptonization on Free-falling Electrons 175
Spectral Index and Quasi-Periodic Oscillation Frequency Correlation in Black Hole Sources: Observational Evidence of Two Phases and Phase Transition in Black Holes 174
The Observed Galactic Annihilation Line: Possible Signature of Accreting Small-Mass Black Holes in the Galactic Center 174
Spectral Index as a Function of Mass Accretion Rate in Black Hole Sources: Monte Carlo Simulations and an Analytical Description 173
New Evidence for a Black Hole in the Compact Binary Cygnus X-3 171
On the Nonrelativistic Origin of Red-skewed Iron Lines in Cataclysmic Variable, Neutron Star, and Black Hole Sources 171
Mechanisms for High-Frequency Quasi-periodic Oscillations in Neutron Star and Black Hole Binaries 171
How to Distinguish Neutron Star and Black Hole X-Ray Binaries? Spectral Index and Quasi-Periodic Oscillation Frequency Correlation 171
Spectral properties of accretion disks around galactic and extragalactic black holes 170
A chandra view of NGC 3621: A bulgeless galaxy hosting an agn in its early phase? 167
Supergiant Fast X-Ray Transients: Swift Results and Theoretical Progress 166
On the pair-instability supernovae and gamma-ray burst phenomenon 164
Millisecond X-Ray Variability from an Accreting Neutron Star System 164
B-Field Determination from Magnetoacoustic Oscillations in Kilohertz Quasi-periodic Oscillation Neutron Star Binaries: Theory and Observations 163
The Bursting Behavior of 4U 1728-34: The Parameters of a Neutron Star and the Geometry of a Neutron Star-Disk System 162
Time Resolved Spectra of GRBs Simultaneously Detected with BATSE andBeppoSAXWFCs 161
Implication of the Observed Spectral Cutoff Energy Evolution in XTE J1550-564 159
Time Variation of Emissions from Comptonization Sources 159
Formation of X-ray spectra in close binary systems - Reflection effects 158
The Extended Power Law as an Intrinsic Signature for a Black Hole 158
On the Constancy of the Photon Index of X-Ray Spectra of 4U 1728-34 through All Spectral States 158
Evidence for a Neutron Star in the non-pulsating massive X-ray binary 4U2206+54 157
Power-Law Tails from Dynamical Comptonization in Converging Flows 156
Kilohertz Quasi-periodic Intensity Oscillations from 4U 1636-536 156
s M82 X-1 Really an Intermediate-Mass Black Hole? X-Ray Spectral and Timing Evidence 154
Effects of Downscattering on the Continuum and Line Spectra in a Powerful Wind Environment: Monte Carlo Simulations, Analytical Results, and Data Analysis 154
On the Spectral Slopes of Hard X-Ray Emission from Black Hole Candidates 152
Hard X-rays from NGC 4151: A thermal origin? 150
On the Nature of the Compact Object in SS 433: Observational Evidence of X-ray Photon Index Saturation 150
Power-Law Spectra as a Result of Comptonization of the Soft Radiation in a Plasma Cloud 149
Normal-Branch Quasi-periodic Oscillations in Scorpius X-1: Viscous Oscillations of a Spherical Shell Near the Neutron Star 148
Effects of Resonance in Quasi-periodic Oscillators of Neutron Star Binaries 148
Spherical accretion onto neutron stars and black holes 145
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 1820-30 143
Testing a Scale-independent Method to Measure the Mass of Black Holes 140
Reflection and reprocessing of X-ray source radiation by the atmosphere of the normal star in a binary system 117
Soft Phase Lags in the Millisecond X-Ray Pulsar SAX J1808.4-3658 112
On the distance and mass-radius relation of neutron stars in X-ray burst sources 109
Totale 15.107
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Categoria #
all - tutte 65.419
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 65.419
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2021/20221.003 0 0 119 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
2024/20251.575 26 33 114 21 256 220 71 40 218 207 164 205
2025/20264.379 359 241 462 634 584 205 344 204 420 646 197 83
2026/2027668 166 285 217 0 0 0 0 0 0 0 0 0
Totale 15.107