The Indo-US Library of Coudé Feed Stellar Spectra

By F. Valdes, Ranjan Gupta, J. Rose, Harinder P. Singh, D. Bell. 2004

451 citations recorded by the source corpus.

We have obtained spectra for 1273 stars using the 0.9 m coudé feed telescope at Kitt Peak National Observatory. This telescope feeds the coudé spectrograph of the 2.1 m telescope. The spectra have been obtained with the no. 5 camera of the coudé spectrograph and a Loral 3K × 1K CCD. Two gratings have been used to provide spectral coverage from 3460 to 9464 Å, at a resolution of ~1 Å FWHM and at an original dispersion of 0.44 Å pixel-1. For 885 stars we have complete spectra over the entire 3460 to 9464 Å wavelength region (neglecting small gaps of less than 50 Å), and partial spectral coverage for the remaining stars. The 1273 stars have been selected to provide broad coverage of the atmospheric parameters Teff, log g, and [Fe/H], as well as spectral type. The goal of the project is to provide a comprehensive library of stellar spectra for use in the automated classification of stellar and galaxy spectra and in galaxy population synthesis. In this paper we discuss the characteristics of the spectral library, viz., details of the observations, data reduction procedures, and selection of stars. We also present a few illustrations of the quality and information available in the spectra. The first version of the complete spectral library is now publicly available from the National Optical Astronomy Observatory (NOAO) via ftp and http.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/4e8f610a766fc0d806c1e6ccdad9175e228e173f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Atomic and Molecular Physics, and Optics

In Instrumentation

Citations in the corpus

SPECTRAL CLASSIFICATION AND REDSHIFT MEASUREMENT FOR THE SDSS-III BARYON OSCILLATION SPECTROSCOPIC SURVEY (2012, methodology): “…suitable to BOSS spectrum classification, we use a hybrid approach that extends data from the Indo-US observational stellar spectrum library (Valdes et al. 2004), selected to provide uniform coverage of the space of stellar atmosphere parameters Teff , log g, and [Fe/H]) using theoretical…”
Coudé-feed stellar spectral library – atmospheric parameters (2010, methodology): “The comparison with the parameters compiled in Valdes et al. (2004) for 17 M and 1 S type stars is shown in Fig.”
An updated MILES stellar library and stellar population models (2011, background): “The spectra typically cover from 3454 to 9469 Å, with a nominal spectral resolution (FWHM) of ≈1.2 Å (Valdes et al. 2004).”
Modelling and interpreting spectral energy distributions of galaxies with BEAGLE (2016, background): “Many spectral evolution models available in the literature (e.g. Pégase, Fioc & Rocca-Volmerange 1997; Le Borgne et al. 2004; GALAXEV, Bruzual & Charlot 2003; FSPS, Conroy et al. 2009; ; Vazdekis et al. 2010; MaStro, Maraston & Strömbäck 2011; Conroy & van Dokkum 2012a) rely on libraries of obser”
Population Synthesis in the Blue. IV. Accurate Model Predictions for Lick Indices and UBV Colors in Single Stellar Populations (2007, background): “This became possible when the Indo-US spectral library, by Valdes et al. (2004) became publicly available.”
ULySS: a full spectrum fitting package (2009, methodology): “We analysed the 18 stars from the CFLIB (indo-US,Valdes et al. 2004) library of spectra in common with the study by da Silva et al.(2006) of G & K stars using R≈50000 spectroscopy and LTE models.”
Kinematic properties of early-type galaxy haloes using planetary nebulae (2008, methodology): “US Coudé Feed Spectral Library (Valdes et al. 2004) and the MILES library C© 2009 The Authors.”
Mass-to-Light Ratios of Field Early-Type Galaxies at z ~ 1 from Ultradeep Spectroscopy: Evidence for Mass-dependent Evolution (2005, methodology): “As templates we use Coudé spectra of 132 stars with the appropriate wavelength range from the sample constructed by (Valdes et al. 2004), with a spectral range from F0 to M6, including both very low and high metallicity stars, and different luminosity classes.”
Fitting the integrated spectral energy distributions of galaxies (2010, background): “…al. 2005; Lançon et al. 2007) and empirical, e.g. STELIB (Le Borgne et al. 2003), MILES (SánchezBlázquez et al. 2006; Cenarro et al. 2007), Indo-US (Valdes et al. 2004), ELODIE (Prugniel and Soubiran 2001; Prugniel et al. 2007), HST/NGSL (Gregg et al. 2004) libraries covering much greater…”
A new extensive library of PHOENIX stellar atmospheres and synthetic spectra (2013, background): “S. Library of Coudé Feed Stellar Spectra (Valdes et al. 2004), MILES (Sánchez-Blázquez et al. 2006), STELIB (Le Borgne et al. 2003), and ELODIE (Prugniel & Soubiran 2004).”
Systematic variation of the stellar initial mass function with velocity dispersion in early-type galaxies (2012, methodology): “For instance, in the region around the Na8190 feature, the MIUSCAT models use stellar spectra from the Indo-US library (Valdes et al. 2004), whereas the models of Conroy & van Dokkum (2012) use the IRTF library (Cushing et al. 2005; Rayner et al. 2009).”
Automatic determination of stellar atmospheric parameters and construction of stellar spectral templates of the Guoshoujing Telescope (LAMOST) (2011, methodology): “…& Soubiran 2001; Prugniel & Soubiran 2004;Prugniel et al. 2007b); UVES-POP (Bagnulo et al. 2003); STELIB (Le Borgne et al. 2003); CFLIB (The INDO-US library of Coud́efeed Stellar Spectra) (Valdes et al. 2004); MILES (Sánchez-Bĺazquez et al. 2006; Cenarro et al. 2007); NGSL (Heap & Lindler 2007).”
Stellar populations of early-type galaxies in different environments - II. Ages and metallicities (2006, background): “LeBorgne et al. 2003; Valdes et al. 2004; Sánchez–Blázquez et al. 2006).”
A REVISED AGE FOR UPPER SCORPIUS AND THE STAR FORMATION HISTORY AMONG THE F-TYPE MEMBERS OF THE SCORPIUS–CENTAURUS OB ASSOCIATION (2011, unknown): “…diagram ∼0.1 dex in luminosity and 10 +15 km s−1, Reid et al. (1993); +6 km s−1, Garmany et al. (1980); -12.6 km s−1, Conti et al. (1977); -15 km s−1, Valdes et al. (2004) gives an age for the primary of 9 Myr. π Sco is a binary with ∆V ∼3.7 (Stickland et al. 1996), which moves the primary down…”
Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer (2017, unknown): “…(4) Cox (2000) based on the star’s SIMBAD spectral type; (5) Le Borgne et al. (2003), (6) Houdashelt et al. (2000), (7) Katz et al. (2011), (8) Valdes et al. (2004), (9) Soubiran et al. (2016), (10)Milone et al. (2011), (11) Prugniel et al. (2011), (12) Bordé et al. (2002), (13) Hekker &…”