J/A+A/598/A79 10 Leo in YJ, H, K, L and M bands spectra (Nicholls+, 2017)
CRIRES-POP: a library of high resolution spectra in the near-infrared.
II. Data reduction and spectrum of the K giant 10 Leo.
Nicholls C.P., Lebzelter T., Smette A., Wolff B., Hartman H.,
Kaufl H.-U., Przybilla N., Ramsay S., Uttenthaler S., Wahlgren G.M.,
Bagnulo S., Hussain G.A.J., Nieva M.-F., Seemann U., Seifahrt A.
<Astron. Astrophys. 598, A79 (2017)>
=2017A&A...598A..79N 2017A&A...598A..79N (SIMBAD/NED BibCode)
ADC_Keywords: Stars, giant ; Stars, K-type ; Spectra, infrared
Keywords: atlases - stars: atmospheres - stars: late-type -
techniques: spectroscopic - infrared: stars - atmospheric effects
Abstract:
High resolution stellar spectral atlases are valuable resources to
astronomy. They are rare in the 1-5µm region for historical
reasons, but once available, high resolution atlases in this part of
the spectrum will aid the study of a wide range of astrophysical
phenomena.
The aim of the CRIRES-POP project is to produce a high resolution
near-infrared spectral library of stars across the H-R diagram. The
aim of this paper is to present the fully reduced spectrum of the K
giant 10 Leo that will form the basis of the first atlas within the
CRIRES-POP library, to provide a full description of the data
reduction processes involved, and to provide an update on the
CRIRES-POP project.
All CRIRES-POP targets were observed with almost 200 different
observational settings of CRIRES on the ESO Very Large Telescope,
resulting in a basically complete coverage of its spectral range as
accessible from the ground. We reduced the 10 Leo spectra with the
CRIRES pipeline, corrected the wavelength solution and removed
telluric absorption with Molecfit, then resampled the spectra to a
common wavelength scale, shifted to rest wavelengths, flux normalised,
and median combined them into one final data product.
We present the fully reduced, high resolution, near-infrared spectrum
of 10 Leo. This is also the first complete spectrum from the CRIRES
instrument. The spectrum is available online. The first CRIRES-POP
spectrum has exceeded our quality expectations and will form the
centre of a state-of-the-art stellar atlas. This first CRIRES-POP
atlas will soon be available, and further atlases will follow. All
CRIRES-POP data products will be freely and publicly available online.
Description:
The data presented is the fully reduced CRIRES-POP spectrum of the K
giant 10 Leo. The spectrum covers the entire near-infrared as
accessible to the ground, i.e. the Y, J, H, K, L, and M bands, and is
split into five ascii files corresponding to the division of the
photometric bandpasses by CRIRES: YJ, H, K, L, M. The spectrum is
presented at R=90,000, at rest wavelengths in vacuum, having been
corrected for telluric absorption, and normalised to the local
pseudocontinuum. Some areas of residual telluric contamination have
been masked, in the files the flux values of these areas have been
replaced with '---'.
Objects:
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RA (2000) DE Designation(s)
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09 37 12.67 +06 50 08.9 10 Leo = HD 83240
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
10leoh.dat 49 45254 10 Leo spectrum H band
10leok.dat 49 46133 10 Leo spectrum K band
10leol.dat 49 39728 10 Leo spectrum L band
10leom.dat 49 25673 10 Leo spectrum M band
10leoyj.dat 49 60196 10 Leo spectrum YJ band
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See also:
J/A+A/539/A109 : CRIRES-POP: high resolution IR spectra library
(Lebzelter+, 2012)
Byte-by-byte Description of file: 10leo*.dat
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Bytes Format Units Label Explanations
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1- 24 E24.19 um lambda Wavelength in microns
26- 49 E24.19 --- Flux ?=- Continuum-normalised flux
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Acknowledgements:
Christine Nicholls, christine.nicholls(at)univie.ac.at
References:
Lebzelter et al., Paper I. 2012A&A...539A.109L 2012A&A...539A.109L, Cat. J/A+A/539/A109
(End) Christine Nicholls [Univ. Vienna], Patricia Vannier [CDS] 21-Sep-2016