SFERA Archivio dei prodotti della Ricerca dell'Università di Ferrara

TITARCHUK, Lev
 Distribuzione geografica
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Continente #
NA - Nord America 8.413
AS - Asia 3.697
EU - Europa 1.720
SA - Sud America 654
AF - Africa 74
Continente sconosciuto - Info sul continente non disponibili 40
OC - Oceania 5
Totale 14.603
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Nazione #
US - Stati Uniti d'America 8.286
SG - Singapore 1.278
CN - Cina 981
BR - Brasile 469
TR - Turchia 420
UA - Ucraina 415
VN - Vietnam 309
DE - Germania 289
HK - Hong Kong 280
IT - Italia 250
GB - Regno Unito 234
FR - Francia 115
SE - Svezia 107
BD - Bangladesh 104
FI - Finlandia 99
RU - Federazione Russa 93
IN - India 83
AR - Argentina 59
CA - Canada 55
MX - Messico 42
JP - Giappone 39
CO - Colombia 32
IQ - Iraq 31
ID - Indonesia 28
ZA - Sudafrica 28
EC - Ecuador 25
PK - Pakistan 25
VE - Venezuela 21
BE - Belgio 19
ES - Italia 19
PH - Filippine 18
PL - Polonia 18
CL - Cile 16
NL - Olanda 16
MA - Marocco 15
UZ - Uzbekistan 15
PY - Paraguay 14
SA - Arabia Saudita 12
TN - Tunisia 11
AE - Emirati Arabi Uniti 10
MY - Malesia 10
JO - Giordania 8
LT - Lituania 8
PE - Perù 7
KZ - Kazakistan 6
AT - Austria 5
JM - Giamaica 5
KE - Kenya 5
UY - Uruguay 5
AU - Australia 4
AZ - Azerbaigian 4
BG - Bulgaria 4
BO - Bolivia 4
CR - Costa Rica 4
EG - Egitto 4
GT - Guatemala 4
HN - Honduras 4
IL - Israele 4
KG - Kirghizistan 4
NP - Nepal 4
OM - Oman 4
AL - Albania 3
DZ - Algeria 3
HR - Croazia 3
PS - Palestinian Territory 3
RO - Romania 3
SI - Slovenia 3
TH - Thailandia 3
TT - Trinidad e Tobago 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
NI - Nicaragua 2
PA - Panama 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
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
MM - Myanmar 1
MU - Mauritius 1
Totale 14.554
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Città #
Fairfield 1.025
Woodbridge 890
Singapore 771
Ashburn 758
Houston 623
Jacksonville 435
Seattle 423
Ann Arbor 385
Santa Clara 379
Wilmington 370
Cambridge 347
San Jose 320
Chandler 285
Beijing 278
Hong Kong 277
Izmir 154
Nanjing 134
Princeton 118
Ho Chi Minh City 110
Los Angeles 101
San Diego 98
Milan 94
Addison 82
Boardman 76
Lauterbourg 71
Hanoi 65
Dallas 59
São Paulo 59
Council Bluffs 49
New York 47
Buffalo 44
Shenyang 40
Hefei 38
Tokyo 38
Chicago 34
Nanchang 32
Falls Church 28
Shanghai 28
Columbus 27
Hebei 26
London 25
Falkenstein 24
Bremen 22
Philadelphia 21
San Mateo 21
Changsha 20
Da Nang 20
Frankfurt am Main 19
Mexico City 19
Moscow 19
Rome 19
Brussels 18
Chennai 18
Jiaxing 18
Tianjin 18
Toronto 18
Belo Horizonte 17
Montreal 17
Washington 17
Des Moines 16
Minneapolis 16
Zhengzhou 16
Norwalk 15
Rio de Janeiro 15
Baghdad 14
Brooklyn 14
Munich 14
Orem 14
Haiphong 13
Atlanta 12
Indiana 12
Jinan 12
Johannesburg 12
Kunming 12
Mountain View 12
Amsterdam 11
Dhaka 11
Phoenix 11
Santiago 11
Tashkent 11
The Dalles 11
Caracas 10
Stockholm 10
Warsaw 10
Auburn Hills 9
Denver 9
Guarulhos 9
Helsinki 9
Ningbo 9
Redondo Beach 9
Verona 9
Amman 8
Asunción 8
Bogotá 8
Boston 8
Guangzhou 8
Kilburn 8
Poplar 8
Salt Lake City 8
Biên Hòa 7
Totale 10.037
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Nome #
A New Comptonization Model for Weakly Magnetized, Accreting Neutron Stars in Low-Mass X-Ray Binaries 245
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 239
Discovery of Photon Index Saturation in the Black Hole Binary GRS 1915+105 233
Black Hole Mass of the Ultraluminous X-Ray Source M82 X-1 233
A Proposed Italian Contribution for the Mirax Scientific Payload 227
Possible physical explanation of the intrinsic E p, i-"intensity" correlation commonly used to "standardize" GRBs 225
Average hard X-ray emission from NS LMXBs: observational evidence of different spectral states in NS LMXBs 222
Broad Redshifted Line as a Signature of Outflow 221
Evolution of Energy and Power Spectra in XTE J1650-500 with BeppoSAX 221
On the stability of the thermal Comptonization index in neutron star low-mass X-ray binaries in their different spectral states 219
A Method for Black Hole Mass Determination in Accretion-powered X-Ray Sources 215
Comptonization signatures in the prompt emission of Gamma Ray Bursts 215
Comptonization Models and Spectroscopy of X-Ray and Gamma-Ray Sources: A Combined Study by Monte Carlo and Analytical Methods 213
Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics 213
Determination of Black Hole Mass in Cygnus X-1 by Scaling of Spectral Index-QPO Frequency Correlation 211
On the Low and High Frequency Correlation in Quasi-periodic Oscillations among White Dwarf, Neutron Star, and Black Hole Binaries 208
BeppoSAX Observations of the Power and Energy Spectral Evolution in the Black Hole Candidate XTE J1650-500 208
An Upscattering Spectral Formation Model for the Prompt Emission of Gamma-Ray Bursts 207
Implementation of a public BeppoSAX GRBM online catalogue and scientific exploitation of the GRBM data archive 203
Mass Determination of Black Holes in LMC X-1 and Nova MUSCAE 1991 from Their High-Energy Spectra 202
Do the Spectra of Soft X-Ray Transients Reveal Bulk-Motion Inflow Phenomenon? 200
The High-Energy Spectra of Accreting Black Holes: Observational Evidence for Bulk-Motion Infall 196
Numerical solution of the radiative transfer equation: X-ray spectral formation from cylindrical accretion onto a magnetized neutron star 191
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 190
Generalized Comptonization models and application to the recent high-energy observations 190
X-Ray Spectral Formation in a Converging Fluid Flow: Spherical Accretion into Black Holes 189
Temporal and Spectral Properties of Comptonized Radiation and Its Applications 189
Timing Spectroscopy of Quasi-Periodic Oscillations in the Low-Mass X-Ray Neutron Star Binaries 187
Comptonization of X-rays in plasma cloud. Typical radiation spectra 182
Comptonization of low-frequency radiation in accretion disks Angular distribution and polarization of hard radiation 181
Disk Diffusion Propagation Model for the Outburst of XTE J1118+480 181
Kilohertz Quasi-periodic Oscillations in Neutron Star Binaries Modeled as Keplerian Oscillations in a Rotating Frame of Reference 181
Timing and Spectral Properties of X-Ray Emission from the Converging Flows onto a Black Hole: Monte Carlo Simulations 180
δ-Invariant for Quasi-periodic Oscillations and Physical Parameters of the 4U 0614+09 Binary 179
Comprehensive Analysis of RXTE Data from Cygnus X-1: Spectral Index-Quasi-Periodic Oscillation Frequency-Luminosity Correlations 176
The Global Normal Disk Oscillations and the Persistent Low-Frequency Quasi-periodic Oscillations in X-Ray Binaries 175
Downscattering Due to Wind Outflows in Compact X-Ray Sources: Theory and Interpretation 174
Phase Difference and Coherence as Diagnostics of Accreting Compact Sources 174
Observational Signatures of Black Holes: Spectral and Temporal Features of XTE J1550-564 174
Discovery of Red-skewed K α Iron Line in Cyg X-2 with Suzaku 173
Three Type I X-Ray Bursts from Cygnus X-2: Application of Analytical Models for Neutron Star Mass and Radius Determination 171
Outflows near an Accreting Black Hole: Ionization and Temperature Structures 171
On the specta of X-ray bursters: Expansion and contraction stages 169
Spectral Index and Quasi-Periodic Oscillation Frequency Correlation in Black Hole Sources: Observational Evidence of Two Phases and Phase Transition in Black Holes 169
Rayleigh-Taylor Gravity Waves and Quasi-periodic Oscillation Phenomena in X-Ray Binaries 169
Why Is It Difficult to Detect a Millisecond Pulsar in Neutron Star X-Ray Binaries? 169
The Converging Inflow Spectrum Is an Intrinsic Signature for a Black Hole: Monte Carlo Simulations of Comptonization on Free-falling Electrons 168
The Observed Galactic Annihilation Line: Possible Signature of Accreting Small-Mass Black Holes in the Galactic Center 167
Mechanisms for High-Frequency Quasi-periodic Oscillations in Neutron Star and Black Hole Binaries 167
Spectral properties of accretion disks around galactic and extragalactic black holes 166
New Evidence for a Black Hole in the Compact Binary Cygnus X-3 165
On the Nonrelativistic Origin of Red-skewed Iron Lines in Cataclysmic Variable, Neutron Star, and Black Hole Sources 164
A chandra view of NGC 3621: A bulgeless galaxy hosting an agn in its early phase? 163
Spectral Index as a Function of Mass Accretion Rate in Black Hole Sources: Monte Carlo Simulations and an Analytical Description 162
How to Distinguish Neutron Star and Black Hole X-Ray Binaries? Spectral Index and Quasi-Periodic Oscillation Frequency Correlation 162
Millisecond X-Ray Variability from an Accreting Neutron Star System 159
Supergiant Fast X-Ray Transients: Swift Results and Theoretical Progress 158
The Bursting Behavior of 4U 1728-34: The Parameters of a Neutron Star and the Geometry of a Neutron Star-Disk System 157
Implication of the Observed Spectral Cutoff Energy Evolution in XTE J1550-564 157
B-Field Determination from Magnetoacoustic Oscillations in Kilohertz Quasi-periodic Oscillation Neutron Star Binaries: Theory and Observations 157
Time Variation of Emissions from Comptonization Sources 157
Time Resolved Spectra of GRBs Simultaneously Detected with BATSE andBeppoSAXWFCs 156
The Extended Power Law as an Intrinsic Signature for a Black Hole 154
On the pair-instability supernovae and gamma-ray burst phenomenon 154
Formation of X-ray spectra in close binary systems - Reflection effects 153
Kilohertz Quasi-periodic Intensity Oscillations from 4U 1636-536 152
On the Constancy of the Photon Index of X-Ray Spectra of 4U 1728-34 through All Spectral States 150
Evidence for a Neutron Star in the non-pulsating massive X-ray binary 4U2206+54 150
Power-Law Tails from Dynamical Comptonization in Converging Flows 149
s M82 X-1 Really an Intermediate-Mass Black Hole? X-Ray Spectral and Timing Evidence 148
On the Spectral Slopes of Hard X-Ray Emission from Black Hole Candidates 148
Hard X-rays from NGC 4151: A thermal origin? 148
Normal-Branch Quasi-periodic Oscillations in Scorpius X-1: Viscous Oscillations of a Spherical Shell Near the Neutron Star 143
Power-Law Spectra as a Result of Comptonization of the Soft Radiation in a Plasma Cloud 143
On the Nature of the Compact Object in SS 433: Observational Evidence of X-ray Photon Index Saturation 143
Effects of Downscattering on the Continuum and Line Spectra in a Powerful Wind Environment: Monte Carlo Simulations, Analytical Results, and Data Analysis 142
Spherical accretion onto neutron stars and black holes 141
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 1820-30 141
Effects of Resonance in Quasi-periodic Oscillators of Neutron Star Binaries 141
Testing a Scale-independent Method to Measure the Mass of Black Holes 136
Reflection and reprocessing of X-ray source radiation by the atmosphere of the normal star in a binary system 111
Soft Phase Lags in the Millisecond X-Ray Pulsar SAX J1808.4-3658 109
On the distance and mass-radius relation of neutron stars in X-ray burst sources 102
Totale 14.603
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Categoria #
all - tutte 62.346
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 62.346
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
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
2024/20251.575 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
2026/2027164 164 0 0 0 0 0 0 0 0 0 0 0
Totale 14.603