Brian P. Flannery

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Martin I. Hoffert

New York University

William H. Press

The University of Texas at Austin

J. S. Faulkner

Florida Atlantic University

Andrew J. Callegari

ExxonMobil (United States)

William T. Vetterling

Mitsubishi Electric (United States)

Jae Edmonds

Joint Global Change Research Institute

Haewon McJeon

Korea Advanced Institute of Science and Technology

G. B. Rybicki

Center for Astrophysics Harvard & Smithsonian

Haroon S. Kheshgi

University of Illinois Urbana-Champaign

Leon Clarke

University of Maryland, College Park

Cooperative Institutions

University of California, Berkeley

Cambridge University Press

Goddard Space Flight Center

Faculty of 1000 (United States)

Stanford University

NSF National Center for Atmospheric Research

Joint Global Change Research Institute

University of Maryland, College Park

Harvard University Press

Jet Propulsion Laboratory

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The penetration of diffuse ultraviolet radiation into interstellar clouds

The Astrophysical Journal (1980)

Brian P. Flannery W. G. Roberge G. B. Rybicki

view Abstract Citations (104) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The penetration of diffuse ultraviolet radiation into interstellar clouds Flannery, B. P. ; Roberge, W. ; Rybicki, G. B. Abstract It is shown that the solution of the transfer equation appropriate for models of the penetration of diffuse UV radiation into interstellar clouds, subject to attenuation by coherent, nonconservative, anisotropic scattering from grains, can be expressed analytically, with arbitrary accuracy, by means of the spherical harmonics method. Models of plane-parallel and homogeneous spherical clouds are given as functions of three parameters: the central optical depth, the single scattering albedo, and the parameter in the Henyey-Greenstein phase function. These models qualitatively confirm the results of earlier Monte Carlo simulations of dust scattering, but reveal quantitative discrepancies: the earlier results overestimated the actual mean intensity, often by more than an order of magnitude. Publication: The Astrophysical Journal Pub Date: March 1980 DOI: 10.1086/157778 Bibcode: 1980ApJ...236..598F Keywords: Clouds; Diffuse Radiation; Interstellar Matter; Radiative Transfer; Spherical Harmonics; Ultraviolet Radiation; Asymptotic Methods; Legendre Functions; Monte Carlo Method; Transfer Functions; Astrophysics full text sources ADS |

10.1086/157778

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Citations (57)

GEO volume 124 issue 6 Cover and Back matter

Geological Magazine (1987)

William H. Press Brian P. Flannery Richard L. Garwin Richard A. Muller Henry Dr

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Content (measure theory)

10.1017/s0016756800017337

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Citations (1)

Numerical Recipes Example Book

William T. Vetterling Saul A. Teukolsky Brian P. Flannery William H. Press

From the Publisher: This is the revised and greatly expanded Second Edition of the hugely popular Numerical Recipes: The Art of Scientific Computing. The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing. In a self-contained manner it proceeds from mathematical and theoretical considerations to actual practical computer routines. With over 100 new routines (now well over 300 in all), plus upgraded versions of many of the original routines, this book is more than ever the most practical, comprehensive handbook of scientific computing available today. The book retains the informal, easy-to-read style that made the first edition so popular, with many new topics presented at the same accessible level. In addition, some sections of more advanced material have been introduced, set off in small type from the main body of the text. Numerical Recipes is an ideal textbook for scientists and engineers and an indispensable reference for anyone who works in scientific computing. Highlights of the new material include a new chapter on integral equations and inverse methods; multigrid methods for solving partial differential equations; improved random number routines; wavelet transforms; the statistical bootstrap method; a new chapter on less-numerical algorithms including compression coding and arbitrary precision arithmetic; band diagonal linear systems; linear algebra on sparse matrices; Cholesky and QR decomposition; calculation of numerical derivatives; Pade approximants, and rational Chebyshev approximation; new special functions; Monte Carlo integration in high-dimensional spaces; globally convergent methods for sets of nonlinear equations; an expanded chapter on fast Fourier methods; spectral analysis on unevenly sampled data; Savitzky-Golay smoothing filters; and two-dimensional Kolmogorov-Smirnoff tests. All this is in addition to material on such basic top

Multigrid method

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Citations (110)

Ultraviolet pumping of N/+/ fine-structure levels

The Astrophysical Journal (1979)

Brian P. Flannery G. B. Rybicki Craig L. Sarazin

view Abstract Citations (12) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Ultraviolet pumping of N+ fine-structure levels. Flannery, B. P. ; Rybicki, G. B. ; Sarazin, C. L. Abstract The effects of radiative pumping, through the six-line UV 3D - 3P multiplet at 1085 A, on the population of the fine-structure levels of N(+) are investigated. Results are presented for both optically thin and optically thick media. For the more important case of an optically thick nebula, an efficient method is outlined for the numerical solution of the multiline multilevel radiative-transfer problem in a model H II region described by plane-parallel geometry, point source illumination, and homogeneous physical conditions. The method is applied to construct a grid of models for N(+) spanning a wide range of values for the electron density, the strength of the UV source, and the line optical depth of the nebula. In general it is found that radiative pumping and transfer effects can significantly alter the level populations, but the effect often mimics results obtained without radiative pumping with a different electron density. For Stroemgren spheres around early-type stars it is found as a result of transfer effects, the role of pumping is never likely to be important. Infrared emission from the fine-structure decays at 122 and 240 microns is also discussed. Publication: The Astrophysical Journal Pub Date: May 1979 DOI: 10.1086/157040 Bibcode: 1979ApJ...229.1057F Keywords: Fine Structure; Nebulae; Nitrogen Ions; Optical Pumping; Ultraviolet Astronomy; Atomic Excitations; Doppler Effect; Electron Density (Concentration); Energy Levels; H Ii Regions; Lyman Spectra; Radiative Transfer; Statistical Distributions; Stellar Evolution; Stellar Spectra; Astrophysics; H II Regions:Radiative Transfer; Line Formation full text sources ADS |

Ultraviolet

10.1086/157040

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Citations (6)

Improved representation of investment decisions in assessments of CO2 mitigation

Nature Climate Change (2015)

Gokul Iyer Leon Clarke Jae Edmonds Brian P. Flannery Nathan Hultman

Investment

Investment Decisions

10.1038/nclimate2553

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Citations (82)

Limited impact on decadal-scale climate change from increased use of natural gas

Nature (2014)

Haewon McJeon Jae Edmonds Nico Bauer Leon Clarke Brian S. Fisher

10.1038/nature13837

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Citations (216)

Tidal fields in general relativity - d'Alembert's principle and the test rigid rod

The Astrophysical Journal (1978)

J. S. Faulkner Brian P. Flannery

view Abstract Citations (2) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Tidal fields in general relativity: d'Alembert's principle and the test rigid rod. Faulkner, J. ; Flannery, B. P. Abstract To the general relativist, tidal forces are a manifestation of the Reimann tensor; the relativist therefore uses the Reimann tensor to calculate the effects of such forces. In contrast, we show that the introduction of gravitational 'probes' (or 'test rigid rods') and the adoption of a viewpoint closely allied to d'Alembert's principle, give an enormous simplification in cases of interest. No component of the Reimann tensor need be calculated as such. In the corotating orbital case (or Roche problem) the calculation of the relevant distortional field becomes trivial. As a by-product of this investigation, there emerges an illuminating strong field generalization of de Sitter's weak field precession for slowly spinning gyroscopes. Publication: The Astrophysical Journal Pub Date: March 1978 DOI: 10.1086/155997 Bibcode: 1978ApJ...220.1125F Keywords: Black Holes (Astronomy); Gravitational Fields; Relativistic Particles; Relativity; Tides; Gyroscopes; Riemann Manifold; Spin Dynamics; Tensor Analysis; Astrophysics; Gravitation; Relativity Theory: Tidal Forces full text sources ADS |

10.1086/155997

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Evaporation-Limited Tropical Temperatures as a Constraint on Climate Sensitivity

Journal of the Atmospheric Sciences (1983)

Martin I. Hoffert Brian P. Flannery Andrew J. Callegari Ching‐Tzong Hsieh W. J. Wiscombe

Abstract Studies of paleoclimate and modern observations indicate that evaporative effects limit thermal response in equatorial regions. We develop a latitude-resolved, steady-state energy balance model which incorporates the effect of an evaporative constraint on the variation of equatorial temperature with solar luminosity. For a diffusive model of surface heat transport the constraint requires the diffusion coefficient to vary with insolation. We find that the movement of the iceline with insolation is four times larger than in standard energy balance models with a constant thermal diffusion coefficient. This is a consequence of the global energy balance which forces temperature changes to occur at high latitudes when they are evaporatively buffered at the equator. Nonlinear temperature-ice albedo feedback at high latitudes then amplifies the response leading to greater sensitivity in the vicinity of current climate.

Potential evaporation

Tropical climate

10.1175/1520-0469(1983)040<1659:elttaa>2.0.co;2

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Citations (28)

The effectiveness of marine CO2 disposal

Energy (1994)

Haroon S. Kheshgi Brian P. Flannery Martin I. Hoffert Andrei G. Lapenis

10.1016/0360-5442(94)90082-5

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Citations (16)

contents of AMS journals

Bulletin of the American Meteorological Society (1983)

H. Nüzhet Dalfes Stephen H. Schneider Starley L. Thompson Martin I. Hoffert Brian P. Flannery

10.1175/1520-0477-64.8.1005

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