The X-Shooter Spectral Library (XSL): Data Release 2

Abstract

We present the second data release (DR2) of the X-Shooter Spectral Library (XSL), which contains all the spectra obtained over the six semesters of that program. This release supersedes our first data release from Chen et al. 2014, with a larger number of spectra (813 observations of 666 stars) and with a more extended wavelength coverage as the data from the near-infrared arm of the X-Shooter spectrograph are now included. The DR2 spectra then consist of three segments that were observed simultaneously and, if combined, cover the range between $\sim$300 nm and $\sim$2.45 $\mu$m at a spectral resolving power close to $R=10000$. The spectra were corrected for instrument transmission and telluric absorption, and they were also corrected for wavelength-dependent flux-losses in 85% of the cases. On average, synthesized broad-band colors agree with those of the MILES library and of the combined IRTF and Extended IRTF libraries to within $\sim 1$%. The scatter in these comparisons indicates typical errors on individual colors in the XSL of 2$-$4 %. The comparison with 2MASS point source photometry shows systematics of up to 5% in some colors, which we attribute mostly to zero-point or transmission curve errors and a scatter that is consistent with the above uncertainty estimates. The final spectra were corrected for radial velocity and are provided in the rest-frame (with wavelengths in air). The spectra cover a large range of spectral types and chemical compositions (with an emphasis on the red giant branch), which makes this library an asset when creating stellar population synthesis models or for the validation of near-ultraviolet to near-infrared theoretical stellar spectra across the Hertzsprung-Russell diagram.

Main paper: 16 pages, Full list of stars from pages 21 to 34, Typical XSL spectra on Figure 10 page 10

References in corpus (50)

• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• Evolutionary population synthesis: models, analysis of the ingredients and application to high-z galaxies
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• MILES: A Medium resolution INT Library of Empirical Spectra
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope
• Spectral Irradiance Calibration in the Infrared. XIV: the Absolute Calibration of 2MASS
• Molecfit: A general tool for telluric absorption correction. I. Method and application to ESO instruments
• The Infrared Telescope Facility (IRTF) Spectral Library: Cool Stars
• An Infrared Spectroscopic Sequence of M, L and T Dwarfs
• Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
• UV-extended E-MILES stellar population models: young components in massive early-type galaxies
• The Effective Temperature Scale of Galactic Red Supergiants: Cool, But Not As Cool As We Thought
• Molecfit: A general tool for telluric absorption correction II. Quantitative evaluation on ESO-VLT X-Shooter spectra
• A database of high and medium-resolution stellar spectra
• ULySS: A Full Spectrum Fitting Package
• A UBVR CCD Survey of the Magellanic Clouds
• The Metal Content of Bulge Field Stars from FLAMES-GIRAFFE Spectra. I. Stellar parameters and Iron Abundances
• The Most Metal-Poor Stars. II. Chemical Abundances of 190 Metal-Poor Stars Including 10 New Stars With [Fe/H] < -3.5
• Empirical calibration of the near-IR Ca II triplet - I. The stellar library and index definition
• An atmospheric radiation model for Cerro Paranal. I. The optical spectral range
• Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters
• Fundamental parameters and infrared excesses of Hipparcos stars
• The PASTEL catalogue of stellar parameters
• The PASTEL catalogue: 2016 version
• Coude-feed stellar spectral library - atmospheric parameters
• Empirical calibration of the near-IR CaII triplet - IV. The stellar population synthesis models
• Near-Infrared Photometry of Carbon Stars
• Metal-rich, Metal-poor: Updated Stellar Population Models for Old Stellar Systems
• The temperatures of Red Supergiants
• Chemical abundances in LMC stellar populations I. The Inner disk sample Based on observations collected at the VLT UT2 telescope
• The stellar content of the Hamburg/ESO survey. II. A large, homogeneously-selected sample of high latitude carbon stars
• Optical atmospheric extinction over Cerro Paranal
• The X-shooter Spectral Library (XSL): I. DR1. Near-ultraviolet through optical spectra from the first year of the survey
• The Extended IRTF Spectral Library: Expanded coverage in metallicity, temperature, and surface gravity
• Flux calibration of medium-resolution spectra from 300 nm to 2500 nm: Model reference spectra and telluric correction
• A Medium-Resolution Near-Infrared Spectral Library of Late Type Stars: I
• The Contribution of TP-AGB and RHeB Stars to the Near-IR Luminosity of Local Galaxies: Implications for Stellar Mass Measurements of High Redshift Galaxies
• Mira Variables in the OGLE Bulge fields
• Synthetic photometry for M and K giants and stellar evolution: hydrostatic dust-free model atmospheres and chemical abundances
• A collection of model stellar spectra for spectral types B to early-M
• Stellar atmospheric parameters for 754 spectra from the X-shooter Spectral Library
• MILES extended: Stellar population synthesis models from the optical to the infrared
• Long Period Variables detected by ISO in the SMC
• New atmospheric parameters and spectral interpolator for the MILES cool stars
• Carbon stars in the X-shooter Spectral Library
• Near-IR spectroscopic ages of massive star clusters in M82
• On the absolute age of the metal-rich globular M71 (NGC 6838): I. optical photometry
• MUSE library of stellar spectra

Cited by in corpus (58)

• TDCOSMO. XII. Improved Hubble constant measurement from lensing time delays using spatially resolved stellar kinematics of the lens galaxy
• SDSS-IV MaNGA: Modeling the Spectral Line Spread Function to Sub-Percent Accuracy
• Quasar Feedback Survey: Multi-phase outflows, turbulence and evidence for feedback caused by low power radio jets inclined into the galaxy disk
• The Pristine Inner Galaxy Survey (PIGS) II: Uncovering the most metal-poor populations in the inner Milky Way
• BASS XXVI: DR2 Host Galaxy Stellar Velocity Dispersions
• Modelling simple stellar populations in the near-ultraviolet to near-infrared with the X-shooter Spectral Library (XSL)
• UGC 4211: A Confirmed Dual Active Galactic Nucleus in the Local Universe at 230 pc Nuclear Separation
• The effects of stellar rotation along the main sequence of the 100 Myr old massive cluster NGC 1850
• BASS XXVIII: Near-infrared Data Release 2, High-Ionization and Broad Lines in Active Galactic Nuclei
• The period--luminosity relation for Mira variables in the Milky Way using Gaia DR3: a further distance anchor for $H_0$
• A KMOS survey of the nuclear disk of the Milky Way I: Survey design and metallicities
• Hunting for C-rich long-period variable stars in the Milky Way's bar-bulge using unsupervised classification of Gaia BP/RP spectra
• MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
• Minor Mergers are not enough: The importance of Major Mergers during Brightest Cluster Galaxy assembly
• New Generation Stellar Spectral Libraries in the Optical and Near-Infrared I: The Recalibrated UVES-POP Library for Stellar Population Synthesis
• New infrared spectral indices of luminous cold stars: from early K to M-types
• Fingerprints of Stellar Populations in the Near-Infrared: An Optimised Set of Spectral Indices in the JHK-Bands
• A comparison between X-shooter spectra and PHOENIX models across the HR-diagram
• SRGA J181414.6-225604: A new Galactic symbiotic X-ray binary outburst triggered by an intense mass loss episode of a heavily obscured Mira variable
• BAYES-LOSVD: a bayesian framework for non-parametric extraction of the line-of-sight velocity distribution of galaxies
• Relativistic corrections for measuring Hubble's constant to 1% using stellar standard candles
• The origin of early-type runaway stars from open clusters
• Stellar Populations in the Transition Region of Nuclear Star Cluster and Nuclear Stellar Disc
• Deriving the star formation histories of galaxies from spectra with simulation-based inference
• Exploring the low-mass regime of galaxy-scale strong lensing: Insights into the mass structure of cluster galaxies
• The APOGEE Library of Infrared SSP Templates (A-LIST): High-Resolution Simple Stellar Population Spectral Models in the H-Band
• Panchromatic calibration of Ca II triplet luminosity dependence
• Infrared Telescope Facility (IRTF) spectral library II: New indices in Y, J, H, and L atmospheric windows
• Imaging the innermost circumstellar environment of the red supergiant WOH G64 in the Large Magellanic Cloud
• An accurate measurement of the spectral resolution of the JWST Near Infrared Spectrograph
• A spectroscopic map of the Galactic centre -- Observations and resolved stars
• Kinematics of stellar substructures in the Small Magellanic Cloud
• A massive AGB donor in Scutum X-1: Identification of the first Mira variable in an X-ray binary
• Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806
• Chemical characterisation of the X-shooter Spectral Library (XSL): [Mg/Fe] and [Ca/Fe] abundances
• First detection of a disk free of volatile elements around a young A-type star: A sign of collisions between rocky planets?
• The luminous red nova AT 2018bwo in NGC 45 and its binary yellow supergiant progenitor
• Investigating silicate, carbon, and water in the diffuse interstellar medium: the first shots from WISCI
• Spectroscopy using a visible photonic lantern at the Subaru telescope: Laboratory characterization and first on-sky demonstration on Ikiiki (α Leo) and `Aua (α Ori)
• Probing General Relativity in galactic scales at z $\sim 0.3$
• V838 Monocerotis as seen by ALMA: a remnant of a binary merger in a triple system
• Prospects of measuring a metallicity trend and spread in globular clusters from low-resolution spectroscopy
• Cosmography from accurate mass modeling of the lens group SDSS J0100+1818: five sources at three different redshifts
• CN and CO Features: Key Indicators of Red Giant Evolutionary Phase in Moderate-Resolution X-Shooter Spectra
• Dynamical mass of the white dwarf in XY Ari: a test for intermediate polar X-ray spectral models
• Photometric calibration in u-band using blue halo stars
• New Temperature and Metallicity Scale of Cool Giants from K-band Spectra
• The Near-Infrared Spectrum of the Nuclear Star Cluster: Looking Below the Tip of the Iceberg and Comparisons with Extragalactic Nuclei
• SMARTY: The mileS Moderate resolution neAr-infRared sTellar librarY
• Parametric strong lensing model of the galaxy cluster Abell 2390 from Euclid and MUSE observations
• $H$-band Temperature and Metallicity Indicators for Cool Giants: Empirical Relations in Bayesian Framework
• Caveats about measuring carbon abundances in stars using the CH band
• Resolved nuclear kinematics link the formation and growth of nuclear star clusters with the evolution of their early and late-type hosts
• Integral field spectroscopy supports atmospheric optics to reveal the finite outer scale of the turbulence
• SDSS-IV MaStar: Theoretical Atmospheric Parameters for the MaNGA Stellar Library
• Cosmic chronometers with galaxy clusters: a new avenue for multi-probe cosmology
• The X-shooter Spectral Library (XSL): Data Release 3
• GRB 160410A: the first Chemical Study of the Interstellar Medium of a Short GRB