J/A+A/621/A60 Bright nearby elliptical gal. Xshooter spectra (Francois+, 2019)
Near-infrared spectroscopic indices for unresolved stellar populations.
I. Template galaxy spectra.
Francois P., Morelli L., Pizzella A., Ivanov V.D., Coccato L., Cesetti M.,
Corsini E.M., Dalla Bonta E.
<Astron. Astrophys. 621, A60 (2019)>
=2019A&A...621A..60F 2019A&A...621A..60F (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Galaxies, spectra ; Spectra, infrared ;
Spectra, optical
Keywords: surveys - infrared: galaxies - galaxies: abundances -
galaxies: stellar content - galaxies: formation
Abstract:
A new generation of spectral synthesis models has been developed in
the recent years, but there is no matching -- in terms of quality and
resolution -- set of template galaxy spectra for testing and refining
the new models.
Our main goal is to find and calibrate new near-infrared spectral
indices along the Hubble sequence of galaxies which will be used to
obtain additional constraints to the population analysis based on
medium resolution integrated spectra of galaxies.
Spectra of previously studied and well understood galaxies with
relatively simple stellar populations (e.g., ellipticals or bulge
dominated galaxies) are needed to provide a baseline data set for
spectral synthesis models.
X-Shooter spectra spanning the optical and infrared wavelength
(350-2400nm) of bright nearby elliptical galaxies with resolving power
R∼4000-5400 were obtained. Heliocentric systemic velocity, velocity
dispersion and Mg, Fe and Hβ line-strength indices are presented.
We present a library of very high quality spectra of galaxies covering
a large range of age, metallicity and morphological type. Such as a
dataset of spectra will be crucial to address important questions of
the modern investigation concerning galaxy formation and evolution.
Description:
Library of X-shooter spectra of bright nearby elliptical galaxies with
resolving power 4000-5400 spanning the optical and infrared
wavelength (350-2400nm). The spectra are in FITS format, flux
calibrated and rest-framed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 76 14 List of spectra
fits/* . 14 Individual fits spectra
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Simbad right ascension (J2000)
4- 5 I2 min RAm Simbad right ascension (J2000)
7- 11 F5.2 s RAs Simbad right ascension (J2000)
13 A1 --- DE- Simbad declination sign (J2000)
14- 15 I2 deg DEd Simbad declination (J2000)
17- 18 I2 arcmin DEm Simbad declination (J2000)
20- 23 F4.1 arcsec DEs Simbad declination (J2000)
25- 30 I6 --- Nx Number of pixels along X-axis
32- 35 I4 Kibyte size Size of FITS file
37- 48 A12 --- FileName Name of FITS file, in subdirectory fits
50- 76 A27 --- Text Title of the FITS file
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Acknowledgements:
Patrick Francois, patrick.francois(at)obspm.fr
(End) Patrick Francois [Paris-Meudon Obs.], Patricia Vannier [CDS] 05-Nov-2018