Nlte PowerPoint PPT Presentations

These additional terms for the various species must balance. ... 3D radiative transfer (3D standard short characteristics) is ready and working ...

Spectral Energy Distributions for Hot Stars ... all stars with spectral type B or earlier. regarded as a domain of ... LS V 46 21. Photospheric abundances ...

Atomic data for NLTE line transfer in stellar atmospheres. F. Th venin. L. Bigot. The present status of the atmospheres. The success of 1D atmospheres. ...

Element 1: NLTE-levels: ion1: 6, ion2: 4, ion3: 1. Element 2: NLTE-levels: ion1: 3, ion2: 5, ion3: 1. Element 3: NLTE-levels: ion1: 5, ion2: 1, hydrogen ...

Thermal balance. Kinematics (M)HD. NLTE radiation transfer. Observations ... Chemical model (equations of chemical kinetics) ...

Analysis of microlensed lines in G5III star, in caustic-crossing event. OGLE-2002-BLG-69 ... An oblate source ? Investigating NextGEN models (NLTE? ...

Title: PowerPoint Presentation Author: jmr Created Date: 2/7/2003 2:51:26 PM Document presentation format: On-screen Show Company: Hampton University

School of Physics, Peking University. Collaborators: Thomas Gehren (LMU) Keith Butler (LMU) ... The low mass unevolved stars have long lifetimes, some of them ...

energy units='eV' 2.306 /energy total_J 1.5 /total_J total_L 1 /total_L must be a ... the international utilization of astronomical archives as an integrated and ...

Sulfur, manganese in the Galaxy Mishenina T.V., Gorbaneva T.I., Paramonova O.P., Basak N.Yu., Kovtyukh V.V., Korotin S.A., Chekhonadskih F. +

... N, Mg, Al, Ne, Fe & others (Munich Observatory N. ... tailored. modelling. Similar results for He, N, O Ne, Mg, Si, Fe. So far O, Mg & Si confirmed by ...

Identification of gravitationally redshifted spectral lines ... NS atmospheres to compute cyclotron absorption lines and absorption by vacuum resonance opacity. ...

Galactic & extragalactic. Mar a Fernanda Nieva. ESO lunch talk, ... for fast-rotators and low S/N (extragalactic) e(C II) e(C III): no ionization equilibrium ...

Radiation field is strong - it is not merely a probe of the physical state, but ... One can truncate the orthogonalization process to k most recent vectors (future) ...

YavapaiApache Language

Accurate Quantitative Spectroscopy of OB Stars. H, He I/II and C II/III/IV spectrum ... from ab-initio calculations. Lines very sensitive to. non-LTE effects ...

Weck et al. (2003), Skory et al. (2003) Wavelength ( ) PHOENIX models. CaH in the Visible ... Weck, Stancil, & Kirby (2003) ... Weck et al. (2004) Wavelength ...

Cosmological Impact of the First Stars (CIFIST Marie Curie Excellence Team)? Outline ... (CIFIST Marie Curie Excellence Team)? 3D Model: Metallicity dependence ...

Low first-ionization-potential (FIP) contribute to ne and ... Not enough contrast for faculae and plage. Umbra profile has reversal unlike the observed ...

SABER Science, Measurement Approach and Data Product Overview

174 spectres ELODIE : 4600 K Teff 6200 K, logg 3.5, [Fe/H] -1.00, / 10 ... r duire les biais ( chantillons locaux) sonder le disque pais in situ (z =1-2 kpc) ...

Young Stellar Objects (T Tauri, Herbig Ae/Be) Mass Transfer Binaries ... REU Students: A. Moorhead, A. Gault. Flux. Polarization. Bjorkman & Carciofi 2003. Inner Disk: ...

AGN Outflows: Observations Doron Chelouche (IAS) The Physics of AGN Flows as Revealed by Observations

and related objects Progress in the asteroseismic analysis of the pulsating sdB star PG 1605+072 Val rie Van Grootel (Laboratoire d Astrophysique de Toulouse, France)

James R. Murphy New Mexico State University. 8/26/09. 2. Mars ... Zonal Winds. 8/26/09. 31. JTGCM ZM: Auroral Joule (40%) Meridional Winds. 8/26/09. 32 ...

Fundamental Physics. Fine Structure constant e hc1/137 ... Atomic Physics. Astrophysics. Chromium and Cosmology. Cr II. 2066.161 . 2062.234 . 2056.254 ...

Carbon abundances of OB dwarfs & giants in the solar vicinity: ... Solution to classical problem of C abundance determination in OB stars (dwarfs & giants) ...

AGB star intershell abundances inferred from analyses of extremely hot H-deficient post-AGB stars Klaus Werner Institut f r Astronomie und Astrophysik Universit t ...

Giraffe: a multi-object spectrograph. CorotWeek8 May 2005. Hubert/Neiner. VLT-GIRAFFE: a multi-object spectrograph. In Medusa mode: 132 fibers. R=7500 and 25000 ...

The Physics of Mass Loss From Stars

Some Ha kernels show no correnponding HXR burst. D:53cm Coronagraph. 9 Channel MSDP ... Elementary HXR bursts. Puzzling phenomena - Pre-heating in Ha ...

The composition of a stellar atmosphere is. exactly that of the natal ... dex ... C I lines weaker by 0.6 dex. than predicted. Solutions: C I gf-values ...

... population of faint blue blue stars in our galaxy and giant elliptical galaxies ... Early 1980's helium-rich and helium-poor objects thought to be separated by a ...

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Sean Ryan. Aaron Steinhauer. Masahide Takeda-Hidai. Stelios Tsangarides. Yuzuru Yoshii ... Paul Barklem. Timothy Beers. Kjell Eriksson. Constantine Delyannis ...

Diagnosis of the physical conditions through the solar atmosphere, ... (They used JF earlier methods and PANDORA. ... Account for radio data showing Tmin 4200 K ...

... neutron capture relative to the -decay timescale. Mass transfer from low ... Rapid neutron capture relative to the -decay timescale. Neutrino wind from SNe II ...

Progress in. radiative transfer modelling. First International ... averaged chemical composition above the photosphere (Nomoto et al., 1984, ApJ. 286, 644) ...

The disk of AB Aurigae Dmitry Semenov (MPIA, Heidelberg, Germany) Yaroslav Pavluchenko (INASAN, Moscow, Russia) Katharina Schreyer ...

The disk of AB Aurigae Dmitry Semenov (MPIA, Heidelberg, Germany) Yaroslav Pavluchenko (INASAN, Moscow, Russia) Katharina Schreyer ...

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... on stellar yields, which determine Galactic chemical evolution (superior goal) We further restrict to very hot, hydrogen-deficient, post-AGB stars.

POlarimetric LIttrow Spectrograph KAOS. VTT, Observatorio del Teide ... TRIPPEL spectrograph AO. Swedish 1-m Solar Telescope, La Palma. Dark-cored penumbral ...

Revising Hot Star Metallicities. Mar a Fernanda Nieva(1,2) Norbert Przybilla(1) ... present-day abundances (young stars) spatial distribution (abundance gradients) ...

1Astronomick stav AV CR, v.v.i., Ondrejov 2Astronomical Institute, University ... a) Optical observations (Multichannel Subtractive Double Pass spectrograph ...

2- Department of Physics, University of Texas, El Paso (USA) 3- Uppsala Astronomical Observatory (Sweden) NGC 2004 LMC (Richtler et al., 1998) ...

Massive Black Hole Growth and Formation

Standard Solar Models II Aldo Serenelli Institute for Advanced Study, Princeton SUSSP61: Neutrino Physics - St. Andrews, Scotland 8th to 23rd, August, 2006

Long-term optical studies (flare activity; activity cycles, ... Partecipation to the ESA cornerstone mission GAIA; Partecipation to the future ESA mission PLATO. ...

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Radiation Transport in

... Triton totally covered by CO2 frost. Case # 2 Triton Unfrosted Equatorial band ... Show the sensitivity of the frost distribution to topography (i.e. pressure, ...

Blue Supergiants as a Tool for Extragalactic Distances

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masers - IRS-I 1 and IRS-I 2 - NH3 peaks. 6-pointed stars - mid ... 44 GHz Class I CH3OH masers. X - 6.7 GHz Class II CH3OH maser. X - faint 3.6 cm source ...