Workshop on Astrophysical Opacities

from Tuesday, 1 August 2017 (08:30) to Friday, 4 August 2017 (17:30)
Western Michigan University Kalamazoo, MI, USA (Fetzer Center, Putney Auditorium)

        : Sessions
    /     : Talks
        : Breaks
1 Aug 2017
2 Aug 2017
3 Aug 2017
4 Aug 2017
AM
08:30
Registration and opening (until 08:58) (Fetzer Center, Putney Auditorium)
08:59
Stellar opacities and solar abundance problem -Prof. Kirk Korista (until 10:40) (Fetzer Center, Putney Auditorium)
09:00 Stellar opacities - Dr Sylvaine TURCK-CHIÈZE (CEA)   ()
09:40 What helioseismology has taught us about opacities and EOS - Prof. Sarbani Basu (Yale University)   ()
10:20 The dark side of the Sun - Dr Regner Trampedach (Space Science Institute)   ()
10:40 --- Coffee break ---
10:59
Opacity calculations - Carlos Iglesias (LLNL) (until 13:00) (Fetzer Center, Putney Auditorium)
11:00 Radiative-opacity calculations for stellar astrophysics - Dr Jean-Christophe Pain (Commissariat a l'Energie Atomique (CEA))   ()
11:40 Equations of state for opacity calculations - Dr David Kilcrease (LANL)   ()
08:59
Diffusion and other plasma processes - Brian Wilson (LLNL) (until 10:20) (Fetzer Center, Putney Auditorium)
09:00 On the importance of atomic data and opacities in evaluating the effects of atomic diffusion in stars - Dr Georges Alecian (CNRS, Observatoire de Paris)   ()
09:40 Hydrodynamical instabilities induced by atomic diffusion in F and A stars - Dr Morgan Deal (Observatoire de Paris)   (Fetzer Center, Putney Auditorium)
10:00 Rayleigh scattering as an opacity source in stellar atmospheres - Mr Jakub Fišák (Masaryk University)   ()
10:20
Atomic opacity measurements -Dr James Bailey (Sandia National Laboratories) (until 10:40) (Fetzer Center, Putney Auditorium)
10:21 Experimental methods for stellar interior opacity measurements at the Z facility - Dr James Bailey (Sandia National Laboratories)   (Fetzer Center, Putney Auditorium)
10:40 --- Coffee break ---
10:59
Atomic opacity measurements -Dr James Bailey (Sandia National Laboratories) (until 13:01) (Fetzer Center, Putney Auditorium)
11:00 Systematic measurements of opacity dependence on temperature, density, and atomic number at stellar interior conditions - Dr Taisuke Nagayama (Sandia National Laboratories)   (Fetzer Center, Putney Auditorium)
11:40 Update on the iron opacity experiments on the NIF - Dr Ted Perry (Los Alamos National Laboratory)   ()
08:59
Molecular opacity calculations -Prof. Peter Bernath (Old Dominion University) (until 10:40) (Fetzer Center, Putney Auditorium)
09:00 HITRAN and HITEMP databases: the quest for accuracy and completeness of reference molecular spectroscopic data - Dr Iouli Gordon (Harvard-Smithsonian Center for Astrophysics)   ()
09:40 The ExoMol project: molecular line lists for the opacity of exoplanets and other hot atmospheres - Prof. Jonathan Tennyson (University College London)   ()
10:20 Molecular data for molecular hydrogen plasmas - Dr Mark Zammit (Los Alamos National Laboratory)   (Fetzer Center, Putney Auditorium)
10:40 --- Coffee break ---
10:59
Atomic opacity calculations -Dr Sylvaine TURCK-CHIEZE (CEA) (until 13:00) (Fetzer Center, Putney Auditorium)
11:00 Recalculation of astrophysical opacities: overview, methodology and atomic calculations - Prof. Anil Pradhan (Ohio State University) Prof. Sultana Nahar (Ohio State University)   ()
11:40 Converged close-coupling R-Matrix calculations for photoionization of iron ions in astrophysical plasmas - Mr Lianshui zhao (The Ohio State University)   (Fetzer Center, Putney Auditorium)
08:59
Basic atomic processes -Dr manuel bautista (Western Michigan University) (until 10:00) (Fetzer Center, Putney Auditorium)
09:00 Lifetime measurements using two-step laser excitation for high lying even-parity levels and improved theoretical oscillator strengths in Y II - Dr Patrick Palmeri (Physique Atomique et Astrophysique, Université de Mons - UMONS, B-7000 Mons, Belgium)   ()
09:20 X-ray absorption by interstellar atomic gases near the K-edges of C, O, Ne, Mg, and Si, and the L-edge of Fe - Dr Muhammet Fatih Hasoglu (Hasan Kalyoncu University)   ()
09:40 Dielectronic recombination calculations for silicon-like ions and the S$^{2+}$ Orion Nebula abundance conundrum - Dr Jagjit Kaur (Western Michigan University)   ()
10:00
Poster session and discussion (until 10:40) (Fetzer Center, Putney Auditorium)
10:40 --- Coffee break ---
11:00
General discussion (until 13:00) (Fetzer Center, Putney Auditorium)
PM
12:20 Including all the lines: data releases for spectra and opacities - Dr Robert Kurucz (Harvard-Smithsonian Center for Astrophysics)   ()
13:00 --- Lunch break ---
13:59
Molecular opacities -Prof. Jonathan Tennyson (University College London) (until 15:40) (Fetzer Center, Putney Auditorium)
14:00 An overview of molecular opacities - Prof. Peter Bernath (Old Dominion University)   ()
Paper
tex file
14:40 Prediction accuracy, consistency, and limitation of IR computations based on ab-initio theory and high-resolution experimental data - Dr Xinchuan Huang (SETI/NASA Ames)   ()
15:20 Molecular line lists and absorption cross sections based on laboratory measurements - Prof. Peter Bernath (Old Dominion University)   ()
Paper
tex file
15:40 --- Cofffee break ---
15:59
Brown dwarfs, exoplanets and protoplanetary disks -Prof. Sarbani Basu (Yale University) (until 17:20) (Fetzer Center, Putney Auditorium)
16:00 The role of opacity in calculating the structure and evolution of protoplanetary disks - Prof. Nuria Calvet (University of Michigan)   ()
16:40 Aerosol optical properties in exoplanet and brown dwarf atmospheres - Dr Caroline Morley (Harvard University)   ()
17:20
Poster session and discussion (until 17:30) (Fetzer Center, Putney Auditorium)
17:30 --- Welcome cocktail ---
12:20 Measuring iron spectral opacities in solar conditions using a double ablation front scheme* - Dr Arnaud Colaitis (LLNL / CELIA)   (Fetzer Center, Putney Auditorium)
13:01 --- Lunch break ---
13:59
Stellar models -Dr Anthony Lynas-Gray (Oxford University) (until 15:40) (Fetzer Center, Putney Auditorium)
14:00 The role of opacities in stellar pulsation - Prof. Shashi Kanbur (SUNY Oswego)   ()
14:40 Testing the opacities using the SED variability of chemically peculiar stars - Prof. Jiri Krticka (Masaryk University)   ()
Paper
15:00 The Bedisk and Beray circumstellar disk codes - Dr Aaron Sigut (The University of Western Ontario)   ()
15:20 The Belgian Repository of fundamental Atomic Data and Stellar Spectra: a status update of BRASS - Dr Alex Lobel (Royal Observatory of Belgium)   (Fetzer Center, Putney Auditorium)
15:40 --- Coffee break ---
15:59
Biosignatures -Dr Robert Kurucz (Harvard-Smithsonian Center for Astrophysics) (until 16:40) (Fetzer Center, Putney Auditorium)
16:00 ATMOS: Resolving ambiguities in the spectroscopic detection of life - Dr Clara Sousa-Silva (MIT)   (Fetzer Center, Putney Auditorium)
16:20 Monte Carlo simulations of biophysical factors for viability of life in exoplanetary atmospheres - Prof. Anil Pradhan (Ohio State University)   (Fetzer Center, Putney Auditorium)
16:40
Poster session and discussion (until 17:00) (Fetzer Center, Putney Auditorium)
12:00 Balancing completeness and accuracy in opacity calculations - Dr Stephanie Hansen (Sandia National Laboratory)   (Fetzer Center, Putney Auditorium)
12:40
Discussion (until 13:00) ()
13:00 --- Lucnh break ---
13:59
Atomic opacity calculations -Dr Sylvaine TURCK-CHIEZE (CEA) (until 15:00) (Fetzer Center, Putney Auditorium)
14:00 A quantitative comparison of opacities calculated using the distorted-wave and R-Matrix methods - Dr Franck Delahaye (Observatoire de Paris, France)   (Fetzer Center, Putney Auditorium)
14:40 Los Alamos opacity data for astrophysical applications - Dr James Colgan (LANL)   ()
15:00
Plasma effects on raditive processes -Prof. Thomas Gorczyca (Western Michigan University) (until 15:40) (Fetzer Center, Putney Auditorium)
15:01 Solar opacities, their uncertainties and the standard solar model - Prof. Doron Gazit (Hebrew University of Jerusalem;Racah Institute of Physics)   ()
15:40 --- Coffee break ---
15:59
Plasma effects on radiative processes -Prof. Thomas Gorczyca (Western Michigan University) (until 16:40) (Fetzer Center, Putney Auditorium)
16:00 Plasma effects on the atomic structure and X-ray K-lines of astrophysical interest - Dr Patrick Palmeri (Physique Atomique et Astrophysique, Université de Mons - UMONS, B-7000 Mons, Belgium)   (Fetzer Center, Putney Auditorium)
16:20 The problem of the high iron abundance in accretion disks around black holes - Dr Javier Garcia (California Institute of Technology)   ()
16:40
Poster session and discussion (until 17:30) (Fetzer Center, Putney Auditorium)
13:00 --- Lunch break ---