Ay 123 Useful URLs

Bibliographical Services

Astronomical Data Center (tables, catalogs): http://tdc-www.harvard.edu/astro.data.html

Astrophysics Data System (journal papers): http://adsabs.harvard.edu/abstract_service.html

The Astrophysics Library has on-line subscriptions to the major astronomical journals: http://library.caltech.edu/collections/astrophysics.htm

Reaction Rates

Caughlan & Fowler 1988 nuclear reaction rate fits: http://www.phy.ornl.gov/astrophysics/data/data.html

For AGB stars see FRUITY (Franec Repository of Upgraded Isotopic Tables & Yields),http://fruity.oa-teramo.inaf.it:8080/modelli.pl

The Isotopes Project: http://ie.lbl.gov/

Atomic Physics Information

National Institute for Standards: ttp://www.physics.nist.gov/
(big database on atomic energy levels, wavelengths of lines of various elements, transition probabilities, etc.)

Opacities

The OPAL Opacity Code of Lawrence Livermore National Lab, http://opalopacity.llnl.gov

Low temperature opacities (includes molecules) from Alexander and Ferguson, http://webs.wichita.edu/physics/opacity/

Characteristics of the stellar spectral types

The characteristics of the stellar spectral types: http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit1/SpTypes/index.html/

web polytrope calculator

polytrope calculator: http://nucleo.ces.clemson.edu/home/online_tools/polytrope/0.8/

Pretty Pictures

Lots of pretty pictures: http://www.stsci.edu/

Astronomy picture of the day,http://apod.nasa.gov

Major International Stellar Observational Database:

Centre de Donnees Astronomique de Strasbourg (France): http://cdsweb.u-strasbg.fr/
(includes infrared photometry from 2MASS, http://www.ipac.caltech.edu, optical photometry, radial velocities, proper motions....)

Model atmospheres

The standard grid of model atmospheres is that of Bob Kurucz of the Smithsonian Astrophysical Observatory, Cambridge, Mass. The name of his model atmosphere code is ATLAS. These programs and model grids and flux grids are available via CD Roms and the Internet (http://kurucz.harvard.edu/).

More useful model of stellar atmosphere can be found: http://www.am.ub.es/~carrasco/models/synthetic.html

NextGen models named PHOENIX, http://www.hs.uni-hamburg.de/EN/For/ThA/phoenix/index.html

Spectrum of the Sun

Available via anonymous ftp from ftp://nsokp.nso.edu/pub/atlas/visatl There is a README file in that directory.

(from the README file for the visatl atlas)

           An Atlas of the Spectrum of the Solar Photosphere
              from 13,500 to 28,000 cm-1 (3570 to 7405A)

               L. Wallace, K. Hinkle, and W. Livingston,
               National Optical Astronomy Observatories.

         The files collected here were made in conjunction with, and are
intended to be used with, the hard copy of this atlas.
         The files with the prefixes "sp" contain the spectral data from which
the plots were made.  Each of these contains a 50 cm-1 region with a 3 cm-1
overlap on each end.  Following the prefix "sp" is the lead frequency of the
segment, e. g., "14150".  For the region 13,500 to 20,000 cm-1, the four
columns of each file contain, first the frequency, second the deduced telluric
spectrum, third the observed photospheric spectrum before correction for
telluric absorption, and fourth the photospheric spectrum corrected for
elluric absorption.  The region 20,000 to 28,000 cm-1 contains no sensible
narrow-line telluric absorbers and consequently the files contain only the
frequencies and the observed spectrum.  The required multiplicative factors to
correct the observed frequencies to the laboratory scale are 1.0000013 for
13,500 to 16,000 cm-1, 0.9999981 for 16,000 to 20,000 cm-1, and 1.0000018 for
20,000 to 28,000 cm-1.
         The remaining files are encapsulated post-script files, one per atlas
page.  The prefix "ph" indicates the corrected photospheric spectra in Section
II of the atlas.  The "tr" files are the Section III pages giving atmospheric
transmission and the observed photospheric spectra.  Finally, "cph" and "ctr"
are the compressed photospheric and transmission plots of Section I.

Our Sun

Solar Granulation, http://csep10.phys.utk.edu/astr162/lect/sun/granulation.html

Solar movies and observations (Big Bear Solar Observatory), http://www.bbso.njit.edu

Stellar interior models

Bergbusch and VandenBerg (1992) ApJS, 81, 163 can be found in the Astronomical Data Center:
http://adc.gsfc.nasa.gov/adc-cgi/cat.pl?/catalogs/6/6055/

The new Yale-Yonsei grid of models can be found at: http://www.astro.yale.edu/demarque/yyiso.html

Visualization of non-Radial Stellar Pulsation Modes

Acoustic Waves and Modes, http://whitedwarf.org/education/vis/

http://www.kettering.edu/physics/drussell/demos.html

Cataclysmic variables and accretion disks

http://www.astro.fit.edu/cv/fitdisk.html

Also see: Useful Links