8500-8750Å high resolution spectroscopy. II. (Munari+, 2000)

Details 8500-8750Å high resolution spectroscopy. II. (Munari+, 2000) 8500-8750Å high resolution spectroscopy. II. (Munari+, 2000)

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ycat..41410141m&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/141/141. Originally published in: 2000A&AS..141..141M

Computer Science

Performance

Models: Atmosphere, Spectroscopy

Scientific paper

We present a library of synthetic spectra characterized by -2.5<=[Z/Z&sun;]<=+0.5, 4.5<=logg<=1.0, and Teff<=7500K computed at the same λ/Δλ=20000 resolving power of the observed spectra given in Paper I (Munari, 1999, Cat. ) for 131 standard stars mapping the MKK spectral classification system. This range of parameters includes the majority of the galactic stars expected to dominate the GAIA target population, i.e. F-G-K-M type stars with metallicity ranging from that of the galactic globular clusters to Population I objects. Extension to Teff>7500K will be given later on in this series. The 254 synthetic spectra presented here are based on Kurucz's codes and line data and have been computed over a more extended wavelength interval (7650-8750Å) than that currently baselined for implementation on GAIA, i.e. the 8500-8750Å. This last range is dominated by the near-IR Ca II triplet and the head of the Paschen series. The more extended wavelength range allows us to investigate the behaviour of other strong near-IR spectral features (severely contaminated by telluric absorptions in ground-based observed spectra) as the K I doublet (7664, 7699Å), the Na I doublet (8183, 8194Å) and the lines of Fe I multiplet N.60 at 8327 and 8388Å. The synthetic spectra support our previous conclusions about the superior performance of the Paschen/Ca II 8500-8750Å region in meeting the GAIA requirements when compared to other near-IR intervals of similar Δλ=250Å. (1 data file).

Affiliated with

Also associated with

No associations

Rating

8500-8750Å high resolution spectroscopy. II. (Munari+, 2000) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with 8500-8750Å high resolution spectroscopy. II. (Munari+, 2000), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 8500-8750Å high resolution spectroscopy. II. (Munari+, 2000) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1243537