Hubený Ivan

RNDr., CSc.
Born June 5, 1948 in Prague

• Theoretical Astrophysics, Radiative Transfer, Theory of Stellar Atmospheres
• Honorary member of the Learned Society of Czech Republic (since 2003)

Educational and professional preparation:

• 1966, graduate, Academic Gymnasium in Prague
• 1966-1971, Faculty of Mathematics and Physics, Charles University, Prague
• 1974, RNDr. (Charles U., Prague)
• 1977, CSc.(Czechoslovak Academy of Sciences, Prague)

Employment and Academic Positions:

• 1972-1977, (Ph.D. student), Astronomical Institute, Czechoslovak Academy of Sciences, Ondrejov
• 1977-1986, Research Scientist, Astronomical Institute, Czechoslovak Academy of Sciences, Ondrejov
• 1987-1988, Visiting Fellow, Joint Institute for Laboratory Astrophysics, University of Colorado, Boulder, CO, USA
• 1988-1990, Visiting Scientist, High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, USA
• 1990-1996, Research Scientist, Universities Space Research Association, NASA Goddard Space Flight Center, Greenbelt, MD, USA
• 1996-2001, Research Scientist, National Optical Astronomy Observatory, NASA Goddard Space Flight Center, Greenbelt, MD, USA;
  Research Scientist, National Optical Astronomy Observatory, Tucson, AZ, USA
• 2004-present Senior Research Scientist and Professor Adjunct, Department of Astronomy, University of Arizona, Tucson, AZ, USA

Membership and positions in selected scientific bodies:

• 1966-1986, Member, Czechoslovak Astronomical Society
• 1977-present, Member, International Astronomical Union (IAU)
• 1987-present, Member, American Astronomical Society
• 1979-1985, Member, Organizing Committee 36 of IAU
• 1991-1997, Member, Organizing Committee 36 of IAU
• 2004-present, Member, Organizing Committee 29 of IAU
• 1984-1986, Member, editorial board of the Bulletin of Astronomical Institutes of Czechoslovakia
• 1990, Co-chairman, Organizing Committee of NATO Workshop Stellar Atmospheres: Beyond Classical Models
• 1999, Co-Chairman, Organizing Committee of Conference Spectroscopic Dating of Stars and Galaxies
• 2002, Co-Chairman, Organizing Committee of Conference Stellar Atmosphere Modeling

Selected publications:

About 180 publications in refereed journals, including:

• Improved complete-linearization method for the solution of the non-LTE line transfer problem, Bull. Astron. Inst. Czechosl., 26, 38 (1975)
• The effect of Lyman-alpha on the non-LTE model atmospheres of A type stars, Astron. Astrophys., 86, 225 (1980)
• Non-LTE analysis of the ultraviolet spectrum of A type stars. II Theoretical considerations and interpretation of the Vega Lyman-alpha region, Astron. Astrophys., 98, 96 (1981)
• Non-LTE Line Transfer with Partial Redistribution. I. General Emission Profile, Bull. Astron, Inst. Czechosl.,32, 271, (1981)
• Non-coherent scattering in subordinate lines: II. Collisional redistribution, J. Quant. Spectrosc. Rad. Transfer, 27, 1 (1982) (P. Heinzel and I. Hubeny)
• Non-coherent scattering in subordinate lines: III. Generalized redistribution functions, J. Quant. Spectrosc. Rad. Transfer, 27, 593 (1982)
• Absorption and emission line profile coefficients of multilevel atoms. I - Atomic profile coefficients; II Velocity-averaged profile coefficients, J. Quant. Spectrosc. Rad. Transfer, 29, 477; 495 (1983) (I. Hubeny, J. Oxenius, E. Simonneau)
• The far-ultraviolet energy distribution of Sirius B from Voyager 2, Astrophys. J., 280, 679 (1984) (J. Holberg, F. Wesemael, I. Hubeny)
• Non-LTE line transfer with partial redistribution. II. An equivalent-two-level-atom approach, Bull. Astron, Inst. Czechosl.,36, 1, (1985)
• A modified Rybicki method and the partial coherent scattering approximation, Astron. Astrophys., 145, 461, (1985)
• How strong is the evidence of superionization and large mass outflows in B/Be stars?, Bull. Astron, Inst. Czechosl.,36, 214, (1985) (I. Hubeny, S. Stefl, P. Harmanec)
• Redistribution of radiation in the presence of velocity-changing collisions, Astrophys. J., 305, 852 (1996) (I. Hubeny and J. Cooper)
• Models and theoretical spectra of accretion discs in dwarf novae, Bull. Astron, Inst. Czechosl.,37, 129, (1986) (S. Kriz and I. Hubeny)
• Probabilistic interpretation of radiative transfer. I - The square root of epsilon law. II - Rybicki equation, Astron. Astrophys., 185, 332; 336 (1987)
• Scattering of polarized light in spectral lines with partial frequency redistribution - General redistribution matrix, Astrophys. J., 334, 527 (1988) (H. Domke and I. Hubeny)
• A computer program for calculating non-LTE model stellar atmospheres, Computer Phys. Commun., 52, 103, (1988)
• Approximate formulation of redistribution in the Ly-alpha, Ly-beta, H-alpha system, Astrophys. J., 344, 949 (1989) (J. Cooper, R. Ballagh, I. Hubeny)
• Vertical structure of accretion disks - A simplified analytical model, Astrophys. J., 351, 632, (1990)
• First results from the Goddard High-Resolution Spectrograph - Evidence for photospheric microturbulence in early O stars - Are surface gravities systematically underestimated?, Astrophys. J., 377, L33 (1991) (I. Hubeny, S. Heap. B. Altner)
• Can a disk model explain Beta Lyrae?, Astron. J., 102, 1156 (1991) (I. Hubeny and M. Plavec)
• Accelerated Lambda iteration (review), Lecture Notes in Physics, 401, 377 (1992)
• Accelerated complete-linearization method for calculating NLTE model stellar atmospheres, Astron. Astrophys., 262, 501 (1992) (I. Hubeny, and T. Lanz)
• NLTE model stellar atmospheres with line blanketing near the series limit, Astron. Astrophys., 282, 151 (1994) (I. Hubeny, D. Hummer, T. Lanz)
• Non-LTE line-blanketed model atmospheres of hot stars. 1: Hybrid complete linearization/accelerated lambda iteration method, Astrophys. J., 439, 875 (1995) (I. Hubeny, and T. Lanz)
• Non-LTE line-blanketed model atmospheres of hot stars. 2: Hot, metal-rich white dwarfs, Astrophys. J., 439, 905 (T. Lanz and I. Hubeny)
• HST/GHRS Observations of the beta Pictoris System: Basic Parameters of the Age of the System, Astrophys. J., 447, L41 (1995) (T. Lanz, S. Heap, I. Hubeny)
• Partial Redistribution in Multilevel Atoms. I. Method and Application to the Solar Hydrogen Line Formation, Astrophys. J., 455, 376 (1995) (I. Hubeny and B. Lites)
• Toward Resolving the ``Mass Discrepancy'' in O-Type Stars, Astrophys. J., 465, 359 (1996) (T. Lanz, A. de Koter., I. Hubeny, S. Heap)
• HST/GHRS Observations of the beta Pictoris System. II. Exploring the Potential for Tracking Comet-like Objects Orbiting the Star, Astrophys. J., 470, 1144 (1996) (I. Hubeny and S. Heap)
• A Spectrum Synthesis and Light Synthesis Program for Binary Stars with Optically Thick Accretion Disk, Astrophys. J., 471, 958 (1996) (A. Linnell and I. Hubeny)
• A Self-consistent Optical, Ultraviolet, and Extreme-Ultraviolet Model for the Spectrum of the Hot White Dwarf G191-B2B, Astrophys. J., 473, 1089 (1996) (T. Lanz, M. Barstow, I. Hubeny, J. Holberg)
• Non-LTE Models and Theoretical Spectra of Accretion Disks in Active Galactic Nuclei, Astrophys. J., 484, L37 (1997) (I. Hubeny and V. Hubeny)
• The effect of photospheric heavy elements on the hot DA white dwarf temperature scale, Mon. Not. R. Astron, Soc., 299, 520 (1998) (M. Barstow, I. Hubeny, J. Holberg)
• Non-LTE Models and Theoretical Spectra of Accretion Disks in Active Galactic Nuclei. II. Vertical Structure of the Disk, Astrophys. J., 505, 558 (1998) (I. Hubeny and V. Hubeny)
• Detailed Mid- and Far-Ultraviolet Model Spectra for Accretion Disks in Cataclysmic Binaries, Astrophys. J. 509, 350 (1998) (R. Wade and I. Hubeny)
• Evidence for the stratification of Fe in the photosphere of G191-B2B Mon. Not. R. Astron, Soc., 307, 884 (1999) (M. Barstow, I. Hubeny, J. Holberg)
• Non-LTE Models and Theoretical Spectra of Accretion Disks in Active Galactic Nuclei. III. Integrated Spectra for Hydrogen-Helium Disks, Astrophys. J. 533, 710 (2000) (I. Hubeny, E. Agol, O. Blaes, J. Krolik)
• Non-LTE Models and Theoretical Spectra of Accretion Disks in Active Galactic Nuclei. IV. Effects of Compton Scattering and Metal Opacities, Astrophys. J. 559, 680 (2001) (I. Hubeny, O. Blaes, J. Krolik, E. Agol)
• Non-LTE, Relativistic Accretion Disk Fits to 3C 273 and the Origin of the Lyman Limit Spectral Break, Astrophys. J., 563, 560 (2001) (O. Blaes, I. Hubeny, E. Agol, J. Krolik)
• Multidimensional Non-LTE Radiative Transfer. I. A Universal Two-dimensional Short-Characteristics Scheme for Cartesian, Spherical, and Cylindrical Coordinate Systems, Astrophys. J., 568, 1066 (2002) (M. van Noort, I. Hubeny, T. Lanz)
• Theoretical Spectra and Atmospheres of Extrasolar Giant Planets Astrophys. J., 588, 1121 (2003) (D. Sudarsky, A. Burrows, I. Hubeny)
• A Possible Bifurcation in Atmospheres of Strongly Irradiated Stars and Planets, Astrophys. J., 594, 1011 (2003) (I. Hubeny, A. Burrows, D. Sudarsky)
• A Grid of Non-LTE Line-blanketed Model Atmospheres of O-Type Stars. Astrophys, J. Suppl., 146, 417, (2003) (T. Lanz and I. Hubeny)
• Theoretical Radii of Transiting Giant Planets: The Case of OGLE-TR-56b, Astrophys. J., 610, L53 (2004) (A. Burrows, I. Hubeny, W. Hubbard, D. Sudarsky, J. Fortney)
• A Theoretical Interpretation of the Measurements of the Secondary Eclipses of TrES-1 and HD 209458b, Astrophys, J., 625, L135 (2005) (A. Burrows, I. Hubeny, D. Sudarsky)
• Relativistic Accretion Disk Models of High-State Black Hole X-Ray Binary Spectra, Astrophys. J., 621, 372, (2006) (S. Davis, O. Blaes, I. Hubeny, N. Turner)
• Fundamental Properties of O-Type Stars, Astrophys. J., 638, 409 (2006) (S. Heap, T. Lanz, I. Hubeny)
• L and T Dwarf Models and the L to T Transition, Astrophys. J., 640, 1063, (2006) (A. Burrows, D. Sudarsky, I. Hubeny)
• A Grid of Relativistic, Non-LTE Accretion Disk Models for Spectral Fitting of Black Hole Binaries, Astrophys. J. Suppl., 164, 530 (2006) (S. Davis and I. Hubeny)
• Neon Abundances in B Stars of the Orion Association: Solving the Solar Model Problem? Astrophys. J., 647, L143 (2006) (K. Cunha, I. Hubeny, T. Lanz)
• Theory for the Secondary Eclipse Fluxes, Spectra, Atmospheres, and Light Curves of Transiting Extrasolar Giant Planets, Astrophys. J., 650, 1140 (2006) (A. Burrows, D. Sudarsky. I. Hubeny)
• A Grid of NLTE Line-blanketed Model Atmospheres of Early B-Type Stars, Astrophys. J. Suppl., 169, 83 (2007) (T. Lanz and I. Hubeny)
• A New Algorithm for Two-Dimensional Transport for Astrophysical Simulations. I. General Formulation and Tests for the One-Dimensional Spherical Case, Astrophys. J., 659, 1458 (2007) (I. Hubeny and A. Burrows)
• Possible Solutions to the Radius Anomalies of Transiting Giant Planets, Astrophys. J., 661, 502 (2007) (A. Burrows, I. Hubeny, J. Budaj. W. Hubbard)