10.4. Atomic Data
A multitude of links to databases containing atomic and molecular data can be found at cfa-www.harvard.edu, in .../amdata/ampdata/otherdb.html or .../~esmond/amdata.html.
The ``Opacity Project'' (OP) at vizier.u-strasbg.fr/OP.html offers extensive atomic data required to estimate stellar envelope opacities.
The original implementation of the ``Vienna Atomic Line Data Base'' (VALD; Piskunov et al. (1995) is available at plasma-gate.weizmann.ac.il/VALD.html. The VALD manual (at plasma-gate.weizmann.ac.il/VALD.html) is part of a summary of ``Databases for Atomic and Plasma Physics'' (DBfAPP) of the Weizmann Institute (see plasma-gate.weizmann.ac.il/DBfAPP.html). An updated and improved interface for VALD is under construction (at www.astro.uu.se/vald), though actual data traffic will continue to be handled via e-mail. This page will include all necessary links including documentation, registration form, requests forms and examples. Send inquiries to F. Kupka (email: firstname.lastname@example.org).