Francisco G. Valdes

Tucson Nighttime Scientific Staff

Areas of Interest

Cosmology, Gravitational Lensing, Stellar Spectroscopy, Astronomical Software

Recent Research Results

Recent work has centered on spectroscopy of a very broad sample of stars of various spectral types, temperatures, and abundances. This collection of stellar spectra will form a unique library, since it covers a larger variety of stars at higher resolution than any existing collection; the atlas will be made available to the astronomical community and public at large. The research use of this library will be for modeling stellar populations in galaxies and for developing software that will be able to determine the temperature, mass, and composition of stars from large future spectroscopic surveys.

Future Research Plans

The observations and preparation of the library of stellar spectra is a multi-year project. Valdes also will be involved in a project to develop new galaxy classification software. The observations used in this project include nearby galaxies and the most distant galaxies imaged by the Hubble Space Telescope.


Valdes is responsible for the development of forefront astronomical software for CCD and spectroscopic astronomical data. This software involves new techniques as well as complex programs to deal with the increasingly complex astronomical data produced by advanced astronomical instruments. The end-product is to extract the maximum astronomical information from the observations made at the telescopes. The software is required by users of NOAO instruments as well as other observatories in the United States and abroad. Support of this software involves assisting astronomers in the application of the programs and consultation about the best methods to use. This assistance is given to many NOAO staff, visitors, and astronomers from smaller institutions.

Go to: [ NOAO Scientific Staff ] [ NOAO ] [ CTIO ] [ KPNO ] [ NSO ] [ USGP ]

NOAO is operated by the Association of U niversities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation
Posted: 06Dec1996