Topics

On December 2--6, 1997, the Oak Ridge National Laboratory hosted the Second Oak Ridge Symposium on Atomic and Nuclear Astrophysics. The Symposium focused on stellar atmospheres, stellar evolution, stellar explosions (novae, supernovae, and X-ray bursters), pregalactic and galactic chemical evolution, the interstellar medium, and atomic and nuclear data for astrophysics. It consisted of invited presentations, invited posters, and contributed posters covering observations, modeling, and the atomic and nuclear physics foundations (data, experiments, and theories) essential to understanding these astrophysical objects and events.


The International Advisory Committee

Marcel Arnould, Universite Libre de Bruxelles, Belgium
Richard Boyd, Ohio State University
Adam Burrows, University of Arizona
Mark Chadwick, Los Alamos National Laboratory
Arthur Champagne, Univ. of North Carolina at Chapel Hill
Roger Chevalier, University of Virginia
Donald Clayton, Clemson University
John Cowan, University of Oklahoma
Alex Dalgarno, Center for Astrophysics
Roberto Gallino, University of Torino
Wick Haxton, University of Washington
Eric Herbst, Ohio State University
Franz Kaeppeler, KfK Karlsruhe
Robert Kirshner, Harvard Center for Astrophysics
James Lattimer, State University of New York, Stony Brook
Grant Mathews, University of Notre Dame
Richard McCray, JILA
Dimitri Mihalas, University of Illinois
Ewald Mueller, Max-Planck Institute
Witek Nazarewicz, University of Tennessee
Kenichi Nomoto, University of Tokyo
William Parkinson, Center for Astrophysics
Nikos Prantzos, Institute of Astrophysics, Paris
John Raymond, Harvard Center for Astrophysics
Claus Rolfs, Ruhr-University of Bochum
David Schramm, University of Chicago
Michael Seaton, University College London
Sumner Starrfield, Arizona State University
Friederich-Karl Thielemann, University of Basel
James Truran, University of Chicago
Craig Wheeler, University of Texas
Michael Wiescher, University of Notre Dame
Stan Woosley, University of California, Santa Cruz
Ernst Zinner, Washington University


The Local Organizing Committee

Jerry Garrett
Michael Guidry
Paul Koehler
Anthony Mezzacappa (Chair)
David Schultz
Michael Smith
Michael Strayer


Detailed Topics and [Confirmed Speakers]

Stellar Atmospheres and Stellar Evolution (Chair: Arthur Champagne)

-Status Report on Solar Fusion Reaction Rates and the Solar Neutrino Problem [Peter Parker]
-Neutron Measurements -- Possibilitiess, Implications, and Further Needs [Franz Kaeppeler]
-Low-Mass AGB Stars [John Lattanzio]
-Massive Stars --- Presupernova Models [Norbert Langer]
-Stellar Abundance Observations [John Cowan]
-Isotopic Abundances in Meteorites: Implications for Stellar Nucleosynthesis [Ernst Zinner]
-Stellar Atmospheres [Klaus Werner]
-Stellar Coronal Structures [Nancy Brickhouse]
-Important Atomic Processes in Solar Physics [Kenneth Dere]


Stellar Explosions:

-Novae and X-Ray Bursters (Chair: Warren Sparks)

--The Early Stages of Nova Runaways [James Truran]
--Observations [Steven Shore]
--Nuclear Structure and Galactic Gamma-Ray Activity [Joachim Goerres]
--Nucleosynthesis [Friederich-Karl Thielemann]
--The Physics of Early Nova Spectra and Light Curves [Peter Hauschildt]

-Supernovae (Chair: Dieter Hartmann)

--Supernovae and Cosmology [Robert Kirshner]
--The Core Collapse Supernova Mechanism [Stephen Bruenn]
--Self-Shielding Down Flows, Kicks, and the Supernova Mechanism [Stirling Colgate]
--Neutron Star Binaries and Gamma Ray Bursts [James Wilson]
--The Type Ia Supernova Mechanism [David Arnett]
--Nuclear Measurements [Karl-Ludwig Kratz]
--Some Nuclear Physics Aspects of Core-Collapse Supernovae [Yong-Zhong Qian]
--Nucleosynthesis [Bradley Meyer]
--Models for Type Ia Supernova [Peter Hoeflich]
--Atomic and Molecular Physics of Supernovae [Weihong Liu]


Pregalactic and Galactic Chemical Evolution:

-Early Universe (Chair: John Cowan)

--Big Bang Nucleosynthesis [Gary Steigman]
--Light Element Observations [Scott Burles]
--Galactic Nucleosynthesis [Nikos Prantzos]
--Chemistry in the Early Universe [Alex Dalgarno]

-Interstellar Medium (Chair: Eric Herbst)

--Important Atomic and Molecular Processes in Galactic Chemistry [Tom Millar]
--Large Organic Molecules in the Laboratory and in Space [Michael McCarthy]
--Cloud Models, the ISM, and Atomic Data [Gary Ferland]


Atomic and Nuclear Data for Astrophysics:

-Atomic Data (Chair: Bill Parkinson)

--Outstanding Issues in Experimental Benchmarks for Electron-Ion Processes: Ionization, Recombination, Excitation [Gordon Dunn]
--Critically Assessed Tables of Atomic Spectroscopy Data [Wolfgang Wiese]
--Atomic Theory: Methods and Computations for Atomic Astrophysics [Anil Pradhan]

-Nuclear Data (Chair: Michael Smith)

--Evaluation and Extrapolation of Light-Element Cross Sections Important in Nuclear Astrophysics [Gerald Hale]
--Nuclear Data Evaluation for Explosive Hydrogen Burning on A=30-50 Nuclei [Donald Smith / Laura Van Wormer]
--Nuclear Astrophysics Data on the Internet [Eric Norman]


Talks and Poster Sessions

Individuals invited to give talks had 25 minutes for their presentations plus 5 minutes for questions. Individuals invited for posters had 10 minutes for a short presentation (with no time for questions), and their posters were displayed all day Wednesday and Thursday. A special reception, including fruit and dessert was held at the meeting site on Thursday evening for the invited posters. Contributed posters were displayed all day Friday and Saturday, and a reception, including fruit and dessert was held on Friday evening.


Symposium Proceedings

The symposium proceedings will be published by IOP Publishing. All invited talks and invited and contributed posters will be included in the proceedings. Instructions and files for producing camera ready copy were made available from the Chairman.


Hotel Accomodations

Blocks of rooms were reserved at the Garden Plaza Hotel [(423) 481-2468,2474] at the rate of $62/night plus tax for single occupancy or $72/night plus tax for double occupancy; the Comfort Inn [(800) 553-7830; (423) 481-8200] at the rate of $55.62/night plus tax for single or multiple occupancy; and the Hampton Inn [(423) 482-7889] at the rate of $63/night plus tax for single or double occupancy. The Garden Plaza, Comfort Inn, and Hampton Inn rooms were released after November 14th, 17th, and 1st, 1997, respectively.


Reception and Registration

A reception was held the evening of December 2nd in the lobby of the Pollard Auditorium, where the meeting will be held. The Pollard is adjacent to the Garden Plaza hotel, and within walking distance from all three hotels. Onsite registration was held at that time, as well as the following morning.


Registration

An early registration fee of $225 and a registration fee of $250 were set to offset the cost of the banquet, proceedings, receptions, and breaks. The deadline for early registration was September 30th, 1997. ONLINE REGISTRATION was possible through this Web site, or via email through the symposium secretary (see Correspondence). Payment methods included cash, checks, traveler's checks, and money orders. Checks, traveler's checks, and money orders needed to be in US dollars and made payable to the University of Tennessee. For offsite registration, payment should have been mailed to the Symposium Secretary - the address is given below (see Correspondence). We were not able to process credit card payments. To register via email, participants included the following information: name, title, affiliation, mailing address, phone number, fax number, email address, the dates they planned to attend the symposium, and - if they planned to submit a contributed poster - a title, an author list (with affiliations) and an abstract. The deadline for submitting abstracts was November 1, 1997.


Banquet

The banquet was be held on Wednesday evening, December 3rd, at the Orangery in Knoxville. Transportation from the Garden Plaza to the Orangery by coach was provided to all attending the banquet.

Keynote Speaker: Donald Clayton
"A Universe of Atomic and Nuclear Physics"



Distinguished Guests

Donald Clayton, Clemson University (banquet speaker)
"A Universe of Atomic and Nuclear Physics"

Stirling Colgate, Los Alamos National Laboratory:
"Self-Shielding Down Flows, Kicks, and the Supernova Mechanism"

Alex Dalgarno, Center for Astrophysics:
"Chemistry in the Early Universe"

James Wilson, Lawrence Livermore National Laboratory:
"Neutron Star Binaries and Gamma Ray Bursts"



Transportation

Oak Ridge is served by McGhee-Tyson Airport in Knoxville. There is a door-to-door limousine service, Chariots of Hire Limousine Service/Airport Express Shuttle, that costs $35 one way and $40 roundtrip to any of the meeting hotels. Reservations are suggested [(423) 522-8108, (800) 287- 5934]. On-line reservations are also possible [COHLimo@aol.com, http:// info-way.com/chariots]. The COH counter is across from the baggage claim area. Taxi service is also available at the airport, and all major car rental companies have offices there. The symposium hotels, symposium site, and eating establishments in Oak Ridge are all within walking distance of each other. A map from McGhee-Tyson Airport to Oak Ridge was provided in a mailing and is also online.


Schedule

TUESDAY, DECEMBER 2, 1997:
EVENING RECEPTION

WEDNESDAY, DECEMBER 3, 1997:
STELLAR ATMOSPHERES AND STELLAR EVOLUTION
CHAIR: Arthur Champagne
08:30-09:00 Welcoming Address
09:00-09:30 Peter Parker (Yale): Status Report on Solar Fusion Reaction Rates and the Solar Neutrino Problem.
09:30-10:00 Franz Kaeppeler (Karlsruhe): Neutron Measurements -- Possibilities, Implications, and Further Needs
10:00-10:30 John Lattanzio (Monash): Low-Mass AGB Stars
10:30-11:00 COFFEE BREAK
11:00-11:30 Norbert Langer (Potsdam): Massive Stars -- Presupernova Models
11:30-12:00 John Cowan (Oklahoma): Stellar Abundance Observations

12:00-14:00 LUNCH

14:00-14:30 Ernst Zinner (Washington University): Isotopic Abundances in Meteorites: Implications for Stellar Nucleosynthesis
14:30-15:00 Klaus Werner (Tuebingen): Stellar Atmospheres
15:00-15:30 Nancy Brickhouse (CfA): Stellar Coronal Structures
15:30-16:00 COFFEE BREAK
16:00-16:30 Kenneth Dere (NRL): Important Atomic Processes in Solar Physics
16:30-16:40 Uwe Greife (Bochum): Experiments at LUNA
16:40-16:50 Klaus Wisshak (Karlsruhe): High-Precision Neutron Capture Measurements with the Karlsruhe Barium Flouride Detector
16:50-17:00 Paul Koehler (ORNL): High-Resolution Neutron Capture and Transmission Measurements on 137Ba and Their Impact on the Interpretation of Meteoric Barium Anomalies
17:00-17:10 Maurizio Busso (Oss. Ast. Torino): Nucleosynthesis in Ba and CH Stars of Low Metallicity
17:10-17:20 Marco Limongi (Oss. Ast. Roma): Presupernova Evolution of 15, 20, and 25 Solar Mass Stars
17:20-17:30 John Houck (MIT): X-Ray Spectroscopy with AXAF
18:30 Bus Leaves for the Orangery
19:15-19:45 Cash Bar at the Orangery
19:45-22:00 BANQUET
Banquet Speaker: Donald Clayton (Clemson) "A Universe of Atomic and Nuclear Physics"
22:15 Bus Leaves for the Garden Plaza

THURSDAY, DECEMBER 4, 1997:

PREGALACTIC AND GALACTIC CHEMICAL EVOLUTION
CHAIR: RICHARD MATZNER (TEXAS)
Early Universe
09:00-09:30 Gary Steigman (Ohio State): Big Bang Nucleosynthesis
09:30-10:00 David Tytler (UCSD): Light Element Observations
10:00-10:30 Nikos Prantzos (IfA Paris): Galactic Nucleosynthesis
10:30-11:00 COFFEE BREAK
11:00-11:30 Alex Dalgarno (CfA): Chemistry in the Early Universe The ISM
11:30-12:00 Tom Millar (UMIST): Important Atomic and Molecular Processes in Galactic Chemistry

12:00-14:00 LUNCH

14:00-14:30 Michael McCarthy (CfA): Large Organic Molecules in the Laboratory and in Space
14:30-15:00 Gary Ferland (Kentucky): Cloud Models, the ISM, and Atomic Data
15:00-15:10 Juan Lara (Texas): Comparison of Two Distinct BBN Codes
15:10-15:20 Peter Mohr (Darmstadt): Neutron Capture on Light Neutron-Rich Nuclei
15:20-15:30 Dieter Hartmann (Clemson): Tracing Galactic Chemical Evolution with 26Al
15:30-16:00 COFFEE BREAK
16:00-16:10 Marco Spaans (Harvard): Star Formation as a Function of Redshift: The Structure of the Multi-Phase ISM
16:10-16:20 Timothy Kallman (NASA/GSFC): The X-Ray Absorption Spectra of Active Galaxies
19:00-21:00 RECEPTION: INVITED POSTERS

FRIDAY, DECEMBER 5, 1997:

ATOMIC AND NUCLEAR DATA FOR ASTROPHYSICS
ATOMIC DATA
CHAIR: BILL PARKINSON (CfA)
08:30-09:00 Gordon Dunn (JILA): Outstanding Issues in Experimental Benchmarks for Electron-Ion Processes: Ionization, Recombination, Excitation
09:00-09:30 Wolfgang Wiese (NIST): Critically Assessed Tables of Atomic Spectroscopy Data
09:30-10:00 Anil Pradhan (Ohio State): Atomic Theory: Methods and Computations for Atomic Astrophysics
10:00-10:30 COFFEE BREAK

NUCLEAR DATA

CHAIR: MICHAEL SMITH (ORNL)
10:30-11:00 Gerald Hale (LANL): Evaluation and Extrapolation of Light-Element Cross Sections Important in Nuclear Astrophysics
11:00-11:30 Donald Smith (ANL)/Laura Van Wormer (Hiram College): Nuclear Data Evaluation for Explosive Hydrogen Burning on A=30-50 Nuclei
11:30-12:00 Eric Norman (LBNL): Nuclear Astrophysics Data on the Internet
12:00-12:10 Nigel Adams (Georgia): Important Ion-Atom and Ion-Molecule Collisions in Astrophysics

12:10-14:00 LUNCH

STELLAR EXPLOSIONS
NOVAE AND X-RAY BURSTERS
CHAIR: WARREN SPARKS
14:00-14:30 James Truran (Chicago): The Early Stages of Nova Runaways
14:30-15:00 Steven Shore (IUSB): Observations
15:00-15:30 Joachim Goerres (Notre Dame): Nuclear Structure and Galactic Gamma- Ray Activity
15:30-16:00 COFFEE BREAK
16:00-16:30 Friederich-Karl Thielemann (Basel): Nucleosynthesis
16:30-17:00 Peter Hauschildt (Georgia): The Physics of Early Nova Spectra and Light Curves
17:00-17:10 Sumner Starrfield (ASU): Elemental Abundances in Classical Novae
17:10-17:20 Ernst Rehm (ANL): Measurements with Radioactive Beams at ANL
17:20-17:30 Michael Smith (ORNL): Nuclear Astrophysics at the Holifield Radioactive Ion Beam Facility
17:30-17:40 Steven Hale and Denise Powell (UNCCH): Measurements of Reaction Rates Relevant to Abundances in Globular Clusters
19:00-21:00 RECEPTION: CONTRIBUTED POSTERS

SATURDAY, DECEMBER 6, 1997:

STELLAR EXPLOSIONS
SUPERNOVAE
CHAIR: DIETER HARTMANN
08:30-09:00 Robert Kirshner (CfA): Supernovae and Cosmology
09:00-09:30 Stephen Bruenn (FAU): The Core Collapse Supernova Mechanism
09:30-10:00 Stirling Colgate (LANL): Self-Shielding Down Flows, Kicks, and the Supernova Mechanism
10:00-10:30 COFFEE BREAK
10:30-11:00 James Wilson (LLNL): Neutron Star Binaries and Gamma Ray Bursts
11:00-11:30 David Arnett (Arizona): The Type Ia Supernova Mechanism
11:30-12:00 Karl-Ludwig Kratz (Mainz): Nuclear Measurements
12:00-13:30 LUNCH
13:30-14:00 Yong-Zhong Qian (Caltech): Some Nuclear Physics Aspects of Core- Collapse Supernovae
14:00-14:30 Bradley Meyer (Clemson): Nucleosynthesis
14:30-15:00 COFFEE BREAK
15:00-15:30 Peter Hoeflich (Texas): Models for Type Ia Supernovae
15:30-16:00 Weihong Liu (ORNL): Atomic and Molecular Physics of Supernovae
16:00-16:10 Jens Niemeyer (Chicago): Combustion Physics of Type Ia Supernovae
04:10-04:20 Pilar Ruiz-Lapuente (Barcelona): Atomic Data for SNe Ia Spectral Calculations
16:20-16:30 Douglas Swesty (NCSA/UIUC): Two-Dimensional Gray and Multigroup Radiation Hydrodynamics Simulations of Core Collapse Supernovae
16:30-16:40 Bronson Messer (UT/ORNL): Neutrino-Driven Supernovae: Boltzmann Neutrino Transport and the Explosion Mechanism
16:40-16:50 Chris Fryer (UCSC): Uncertainties in Core Collapse Supernova Models
16:50-17:00 Sanjay Reddy (Stony Brook): Neutrino Opacities at High Density and the Protoneutron Star Evolution
17:00-17:10 Raphael Hix (UT/ORNL/JIHIR): Simplifying Silicon Burning
17:10-17:20 Grant Mathews (Notre Dame): Status of NS-NS--Collision Gravity Wave Calculations
17:20-17:30 Alan Calder (NCSA): Numerical Mergers of Binary Neutron Star Systems
17:30-17:40 Renato Ejnisman (Rochester): The Thermal Neutron Capture Cross Section of 44Ti

CONTRIBUTED POSTERS:

% A. Bhatia (NASA/GSFC): Optical Depths and Escape Probabilities from Observed Linewidths and Intensities
% Franziska Brachwitz (Basel): Nucleosynthesis in SNe Ia
% Robert Cavallo (Maryland): Mixing in Globular Cluster Red Giant Stars
% Kenneth De Nisco (FAU): General Relativistic Effects in the Core Collapse Supernova Mechanism
% Donald Garnett (Minnesota): Heavy Element Abundances in Spiral and Irregular Galaxies as a Function of Metallicity
% Guillermo Gonzalez (Washington): Nucleosynthesis in FG Sge
% Michael Heil (Karlsruhe): The (n,g) Cross Section of 7Li
% Mariet Hofstee (Colorado School of Mines): Recent Results from the Low-Energy Nuclear Physics Project
% David Jeffery (ORNL): A Grey Opacity Prescription for Gamma-Ray Transfer in Supernovae
% Jave Kane (LLNL): Supernova Experiments on the Nova Laser
% Wolfgang Keil (MPI): Convection in Protoneutron Stars
% Predrag Krstic (ORNL): Calculations of Charge Transfer Reactions of Relevance to Astrophysics
% Richard McCray (JILA, Colorado): Impact of SN1987A with Circumstellar Gas
% Victoria McLane (BNL): Nuclear Data Online
% Alexander Murphy (Ohio State): A Prototype Detector for the Observatory for Multi- Flavor Neutrinos from Supernovae (OMNIS)
% Eric Norman (LBNL): Nuclear Astrophysics Data on the Internet
% Mitch Pindzola (Auburn): Electron-Ion Scattering Cross Sections for the Modeling of Astrophysical and Laboratory Plasmas
% Thomas Rauch (Tuebingen): TBA
% Thomas Rauscher (Basel): Predicting Nuclear Reaction Rates Far from Stability
% Felix Rembges (Basel): Recurrent Thermonuclear Bursts on Neutron Stars
% Stephan Rosswog (Basel): Merging Neutron Stars
% Augusto Scalia (Catania): A New Method to Determine the Energy of the Coulomb Barrier by Using Experimental Fusion Data
% Endre Somorjai (INR, Hungary): Comparison of Experimental and Calculated S-Factors for the P-Process Reaction 144Sm(a,g)148Gd
% Philip Stancil (ORNL): Molecule Formation and Destruction Processes in Astrophysical Environments
% Vincent Tatischeff (NASA/GSFC): X-Ray Emission from Low-Energy Cosmic Rays
% Frank Timmes (UCSD): TBA
% Peter van Hoof (Kentucky): A Comprehensive IR Line List for Atomic Transitions on the WWW
% Dmitri Verner (Kentucky): "Atomic Data for Astrophysics" Database
% Ekaterina Verner (Kentucky): Modeling Quasar FeII Emission Spectra
% Edward Wang (NCSA/UIUC/Washington University): A Comparison of Newtonian and Post-Newtonian Numerical Mergers of Binary Neutron Star Systems


Correspondence

All questions concerning hotel accommodations and transportation were directed to the hotels, limousine service, and car rental companies. All correspondence concerning the symposium was directed to:

Ms. Althea Tate
Symposium Secretary
Physics Division
Bldg. 6003
MS 6373
P.O. Box 2008
Oak Ridge, TN, 37831-6373
Phone: (423) 574-4576
Email: astrosym@mail.phy.ornl.gov


Image Credits

Cas A Supernova Remnant - NRAO/AUI; SiC Presolar Grain - Sachiko Amari, Washington Univ.; Nova Cygni 1992 - Space Telescope Science Institute (STScI); Supernova1987A - STScI; Betelgeuse - STScI.