Resources for Stellar Atmospheres & Spectra

Resources forStellar Atmospheres & Spectra ATLAS Cool starsHot starsSpectral Libraries

ATLAS – Robert Kurucz • Available on-line athttp://kurucz.cfa.harvard.edu/A = tables of temperature-pressure relations for each model for a range Teff and log gravity B = Balmer line profiles for each model F = fluxes for each model I = intensities for each model; limb darkening for 17 angles • Linux source code athttp://atmos.obspm.fr/ • Good for B through G spectral classes

High Resolution Spectra from ATLAS • Bertone et al. 2008, A&A, 485, 823http://www.inaoep.mx/~modelos/bluered/bluered.htmlhttp://www.inaoep.mx/~modelos/uvblue/uvblue.html

Spectrum Synthesis: Atmosphere + Line List to Spectrum • Bob Kurucz’ SYNTHEhttp://kurucz.harvard.edu/programs.html • Chris Sneden’s MOOGhttps://www.as.utexas.edu/~chris/moog.html • Jeff Valenti’s Spectroscopy Made Easy http://www.stsci.edu/~valenti/sme.html • Richard Gray’s SPECTRUMhttp://www.appstate.edu/~grayro/spectrum/spectrum.html • Ian Czekala’s Starfishhttps://github.com/iancze/Starfish

Links for Atmospheres and Synthetic Spectra • David Montes’ wonderful collection:http://webs.ucm.es/info/Astrof/invest/actividad/spectra.html • Intensive grid of ATLAS9 models: NEMO = Vienna New Model Grid of Stellar Atmosphereshttp://www.univie.ac.at/nemo/cgi-bin/dive.cgi • POLLUX database of theoretical spectrahttp://pollux.graal.univ-montp2.fr/

Model Cool Stars MARCS - Gustafsson • Gustafsson et al. 2008, A&A, 486, 951 • Models available athttp://marcs.astro.uu.se/ • spherically-symmetric models, using up-to-date atomic and molecular data • Good for Teff between 2500 and 8000K

Model Cool Stars PHOENIX - Hauschildt • General spherical code with non-LTE models for many atoms, molecules • Used for cool stars, substellar objects (with condensates + clouds)http://perso.ens-lyon.fr/france.allard/ and novae, supernovae • Web sites at:http://phoenix.astro.physik.uni-goettingen.de/http://svo2.cab.inta-csic.es/theory/newov/

Model Hot Stars TLUSTY – Lanz & Hubeny • Good for hot stars (B- and O-types) • Uses non-LTE treatment of many atoms • Plane parallel atmospheres, no treatment of stellar winds and mass loss • Accretion disk atmospheres • Web site athttp://nova.astro.umd.edu/index.html

Model Hot Stars CMFGEN – John Hillier • Radiative transfer code designed to solve the radiative transfer and statistical equilibrium equations in spherical geometry • Designed for W-R stars, O stars, and Luminous Blue-Variables • Some spectra available at http://pollux.graal.univ-montp2.fr/ • Grid soon: Fierro-Santillan et al. 2018, ApJS, 236, 38 • Web site at http://kookaburra.phyast.pitt.edu/hillier/web/CMFGEN.htm

Model Hot Stars FASTWIND – Jo Puls • Spherical, non-LTE, line blanketed code that treats photosphere and wind • Good for hot, luminous O-stars • Puls et al. 2005, A&A, 435, 669 • No grid available yet (Simon Diaz et al. 2011, J. Phys. Conf. Ser., 328, 012021)

Model Hot Stars: POWR Potsdam Wolf-Rayet Models – Wolf-Rainer Hamann • Designed for extensive mass loss stars, WR and OB types • http://www.astro.physik.uni-potsdam.de/~wrh/PoWR/powrgrid1.php

Observational Spectral Libraries • Excellent lists (UV, optical, IR) available at David Montes’ web sitehttp://webs.ucm.es/info/Astrof/invest/actividad/spectra.html • Examples: ELODIE (OHP) library for high dispersion R=42000 of northern sky stars Archive contains nearly 35,000 spectra Web site at http://atlas.obs-hp.fr/elodie/

Observational Spectral Libraries • Indo-US library of coude feed stellar spectraValdes et al. 2004, ApJS, 152, 251https://www.noao.edu/cflib/

Ultraviolet Spectra • IUE archivehttps://archive.stsci.edu/iue/ • HST archivehttps://archive.stsci.edu/hst/ 10 Lac

Resources for Stellar Atmospheres & Spectra