Hot DA white dwarfs grid of synthetic spectra : J/ApJS/231/1

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Authors : Levenhagen R.S. orcid , Diaz M.P., Coelho P.R.T. (hide) , Diaz M.P., Coelho P.R.T. et..al

VizieR DOI : 10.26093/cds/vizier.22310001
Bibcode : 2017ApJS..231....1L (ADS) (Simbad) (Objects)
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CDS Keywords : Clusters, globular; Line Profiles; Stars, white dwarf; Models, atmosphere
UAT : Globular star clusters, Spectroscopy, White dwarf stars, Astronomical models, Stellar atmospheres

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Inserted into VizieR : 03-Jul-2017
Last modification : 13-Apr-2021

A Grid of Synthetic Spectra for Hot DA White Dwarfs and Its Application in Stellar Population Synthesis. (2017)

Keywords : globular clusters general - line: profiles - stars: atmospheres - stars: fundamental parameters - techniques: spectroscopic - white dwarfs

Abstract:In this work we present a grid of LTE and non-LTE synthetic spectra of hot DA white dwarfs (WDs). In addition to its usefulness for the determination of fundamental stellar parameters of isolated WDs and in binaries, this grid will be of interest for the construction of theoretical libraries for stellar studies from integrated light. The spectral grid covers both a wide temperature and gravity range, with 17000K<=Teff<=100000K and 7.0<=log(g)<=9.5. The stellar models are built for pure hydrogen and the spectra cover a wavelength range from 900{AA} to 2.5um. Additionally, we derive synthetic HST/ACS, HST/WFC3, Bessel UBVRI, and SDSS magnitudes. The grid was also used to model integrated spectral energy distributions of simple stellar populations ...(more)
Abstract: (hide)
American Astronomical Society policies
Files tTTTgGGA.dat concern non-LTE DA White Dwarf synthetic spectra. TTT corresponds to the effective temperature, GG corresponds to log(g) and nl (for NLTE) flag. Files bessel.dat, hstacs.dat, hstwfc3.dat, sdss.dat are respectively synthetic magnitude tables in the Bessel, HST/ACS, HST/WFC3 and SLOAN/SDSS systems.
Ronaldo S. Levenhagen, ronaldo.levenhagen(at)gmail.com

                


                

                    

                


                

                    

                


                

                    
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