SIMBAD references

2005PASP..117..810S - Publ. Astron. Soc. Pac., 117, 810-822 (2005/August-0)

An atlas of spectrophotometric Landolt standard stars.

STRITZINGER M., SUNTZEFF N.B., HAMUY M., CHALLIS P., DEMARCO R., GERMANY L. and SODERBERG A.M.

Abstract (from CDS):

We present CCD observations of 102 Landolt standard stars obtained with the Ritchey-Chrétien spectrograph on the Cerro Tololo Inter-American Observatory 1.5 m telescope. Using stellar atmosphere models, we have extended the flux points to our six spectrophotometric secondary standards, in both the blue and the red, allowing us to produce flux-calibrated spectra that span a wavelength range from 3050 Å to 1.1 µm. Mean differences between UBVRI spectrophotometry computed using Bessell's standard passbands and Landolt's published photometry were determined to be 1% or less. Observers in both hemispheres will find these spectra useful for flux-calibrating spectra, and through the use of accurately constructed instrumental passbands, will be able to compute accurate corrections to bring instrumental magnitudes to any desired standard photometric system (S-corrections). In addition, by combining empirical and modeled spectra of the Sun, Sirius, and Vega, we calculate and compare synthetic photometry to observed photometry taken from the literature for these three stars.

Abstract Copyright:

Journal keyword(s): Techniques: Photometric - Stars: Fundamental Parameters

Simbad objects: 110

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