Issue |
Astron. Astrophys. Suppl. Ser.
Volume 137, Number 3, June II 1999
|
|
---|---|---|
Page(s) | 521 - 528 | |
DOI | https://doi.org/10.1051/aas:1999490 | |
Published online | 15 June 1999 |
High resolution spectroscopy over
8500-8750 Å for GAIA*,**,***
I. Mapping the MKK classification system
1
Osservatorio Astronomico di Padova, Sede di Asiago, I-36012 Asiago (VI), Italy e-mail: munari@pd.astro.it
2
Centro Interpardimentale Studi ed Attività Spaziali (CISAS "G. Colombo"), Università di Padova, Italy
3
Osservatorio Astrofisico dell' Università di Padova, I-36012 Asiago (VI), Italy e-mail: tomasella@pd.astro.it
Send offprint request to: U. Munari
Received:
29
March
1999
Accepted:
16
April
1999
We present an Echelle+CCD high resolution spectroscopic atlas (0.25 Å/pix
dispersion, 0.43 Å FWHM resolution and 20 000 resolving power) mapping the
MKK classification system over the interval
8500-8750 Å.
The wavelength interval is remarkably free from telluric lines and it is
centered on the near-IR triplet of Ca II, the head of hydrogen Paschen
series and several strong metallic lines. The spectra of 131 stars of types
between O4 and M8 and luminosity classes I through V are included in the
atlas. Special care was put in maintaining the highest instrumental
homogeneity over the whole set of data. The capability to derive accurate
MKK spectral types from high resolution observations over the interval
8500-8750 Å is discussed. The observations have been
performed as part of an evaluation study of possible spectroscopic
performances for the astrometric mission GAIA planned by ESA.
Key words: Atlases / standards / stars: fundamental parameters
Tables 3 and 4 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/ Abstract.html
© European Southern Observatory (ESO), 1999