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J/ApJS/231/1   Hot DA white dwarfs grid of synthetic spectra (Levenhagen+, 2017)

A Grid of Synthetic Spectra for Hot DA White Dwarfs and Its Application in Stellar Population Synthesis. Levenhagen R.S., Diaz M.P., Coelho P.R.T., Hubeny I. <Astrophys. J. Suppl. Ser. 231, 1 (2017)> =2017ApJS..231....1L (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Line Profiles ; Stars, white dwarf ; Models, atmosphere 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 900Å 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 and our modeling suggests that DAs might be detectable in ultraviolet bands for populations older than ∼8Gyr. Description: Files tTTTgGGA.dat concern the DA White Dwarf synthetic spectra. TTT corresponds to the effective temperature, GG corresponds to log(g) and n or l (for NLTE/LTE) 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. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file bessel.dat 76 2183 Synthetic Bessel magnitudes hstacs.dat 232 2183 Synthetic HST/ACS magnitudes hstwfc3.dat 830 2183 Synthetic HST/WFC3-UVIS2 magnitudes sdss.dat 76 2183 Synthetic SLOAN/SDSS magnitudes spectra.dat 24 2183 List of synthetic spectra sp/* 20 2183 Individual LTE/NLTE DA white dwarf synthetic spectra
Byte-by-byte Description of file: bessel.dat
Bytes Format Units Label Explanations
1- 6 I6 K Teff Effective temperature 8- 9 I2 10[cm/s2] logg log surface gravity * 10 15- 24 F10.7 mag Umag Bessel U magnitude (Vega) (1) 28- 37 F10.7 mag Bmag Bessel B magnitude (Vega) (1) 41- 50 F10.7 mag Vmag Bessel V magnitude (Vega) (1) 54- 63 F10.7 mag Rmag Bessel R magnitude (Vega) (1) 67- 76 F10.7 mag Imag BEssel I magnitude (Vega) (1)
Note (1): Bessel magnitudes are expressed in the Vega system.
Byte-by-byte Description of file: hstacs.dat
Bytes Format Units Label Explanations
1- 6 I6 K Teff Effective temperature 8- 9 I2 10[cm/s2] logg log surface gravity * 10 15- 24 F10.7 mag F220W HST/ACS F220W magnitude (Vega) (1) 28- 37 F10.7 mag F250W HST/ACS F250W magnitude (Vega) (1) 41- 50 F10.7 mag F330W HST/ACS F330W magnitude (Vega) (1) 54- 63 F10.7 mag F344N HST/ACS F344N magnitude (Vega) (1) 67- 76 F10.7 mag F435W HST/ACS F435W magnitude (Vega) (1) 80- 89 F10.7 mag F475W HST/ACS F475W magnitude (Vega) (1) 93-102 F10.7 mag F502N HST/ACS F502N magnitude (Vega) (1) 106-115 F10.7 mag F550M HST/ACS F550M magnitude (Vega) (1) 119-128 F10.7 mag F555W HST/ACS F555W magnitude (Vega) (1) 132-141 F10.7 mag F606W HST/ACS F606W magnitude (Vega) (1) 145-154 F10.7 mag F652W HST/ACS F652W magnitude (Vega) (1) 158-167 F10.7 mag F658N HST/ACS F658N magnitude (Vega) (1) 171-180 F10.7 mag F660N HST/ACS F660N magnitude (Vega) (1) 184-193 F10.7 mag F775W HST/ACS F775W magnitude (Vega) (1) 197-206 F10.7 mag F814N HST/ACS F814N magnitude (Vega) (1) 210-219 F10.7 mag F850LP HST/ACS F850LP magnitude (Vega) (1) 223-232 F10.7 mag F892N HST/ACS F892N magnitude (Vega) (1)
Note (1): HST/ACS magnitudes are expressed in the Vega system.
Byte-by-byte Description of file: hstwfc3.dat
Bytes Format Units Label Explanations
1- 6 I6 K Teff Effective temperature 8- 9 I2 10[cm/s2] logg log surface gravity * 10 15- 24 F10.7 mag F200LP HST/WFC3-UVIS2 F200LP magnitude (Vega) (1) 28- 37 F10.7 mag F218W HST/WFC3-UVIS2 F218W magnitude (Vega) (1) 41- 50 F10.7 mag F225W HST/WFC3-UVIS2 F225W magnitude (Vega) (1) 54- 63 F10.7 mag F275W HST/WFC3-UVIS2 F275W magnitude (Vega) (1) 67- 76 F10.7 mag F280N HST/WFC3-UVIS2 F280N magnitude (Vega) (1) 80- 89 F10.7 mag F300X HST/WFC3-UVIS2 F300X magnitude (Vega) (1) 93-102 F10.7 mag F336W HST/WFC3-UVIS2 F336W magnitude (Vega) (1) 106-115 F10.7 mag F343N HST/WFC3-UVIS2 F343N magnitude (Vega) (1) 119-128 F10.7 mag F350LP HST/WFC3-UVIS2 F350LP magnitude (Vega) (1) 132-141 F10.7 mag F373N HST/WFC3-UVIS2 F373N magnitude (Vega) (1) 145-154 F10.7 mag F390M HST/WFC3-UVIS2 F390M magnitude (Vega) (1) 158-167 F10.7 mag F390W HST/WFC3-UVIS2 F390W magnitude (Vega) (1) 171-180 F10.7 mag F395N HST/WFC3-UVIS2 F395N magnitude (Vega) (1) 184-193 F10.7 mag F410M HST/WFC3-UVIS2 F410M magnitude (Vega) (1) 197-206 F10.7 mag F438W HST/WFC3-UVIS2 F438W magnitude (Vega) (1) 210-219 F10.7 mag F467M HST/WFC3-UVIS2 F467M magnitude (Vega) (1) 223-232 F10.7 mag F469N HST/WFC3-UVIS2 F469N magnitude (Vega) (1) 236-245 F10.7 mag F475W HST/WFC3-UVIS2 F475W magnitude (Vega) (1) 249-258 F10.7 mag F475X HST/WFC3-UVIS2 F475X magnitude (Vega) (1) 262-271 F10.7 mag F487N HST/WFC3-UVIS2 F487N magnitude (Vega) (1) 275-284 F10.7 mag F502N HST/WFC3-UVIS2 F502N magnitude (Vega) (1) 288-297 F10.7 mag F547M HST/WFC3-UVIS2 F547M magnitude (Vega) (1) 301-310 F10.7 mag F555W HST/WFC3-UVIS2 F555W magnitude (Vega) (1) 314-323 F10.7 mag F600LP HST/WFC3-UVIS2 F600LP magnitude (Vega) (1) 327-336 F10.7 mag F606W HST/WFC3-UVIS2 F606W magnitude (Vega) (1) 340-349 F10.7 mag F621M HST/WFC3-UVIS2 F621M magnitude (Vega) (1) 353-362 F10.7 mag F625W HST/WFC3-UVIS2 F625W magnitude (Vega) (1) 366-375 F10.7 mag F631N HST/WFC3-UVIS2 F631N magnitude (Vega) (1) 379-388 F10.7 mag F645N HST/WFC3-UVIS2 F645N magnitude (Vega) (1) 392-401 F10.7 mag F656N HST/WFC3-UVIS2 F656N magnitude (Vega) (1) 405-414 F10.7 mag F657N HST/WFC3-UVIS2 F657N magnitude (Vega) (1) 418-427 F10.7 mag F658N HST/WFC3-UVIS2 F658N magnitude (Vega) (1) 431-440 F10.7 mag F665N HST/WFC3-UVIS2 F665N magnitude (Vega) (1) 444-453 F10.7 mag F673N HST/WFC3-UVIS2 F673N magnitude (Vega) (1) 457-466 F10.7 mag F680N HST/WFC3-UVIS2 F680N magnitude (Vega) (1) 470-479 F10.7 mag F689M HST/WFC3-UVIS2 F689M magnitude (Vega) (1) 483-492 F10.7 mag F763M HST/WFC3-UVIS2 F763M magnitude (Vega) (1) 496-505 F10.7 mag F775W HST/WFC3-UVIS2 F775W magnitude (Vega) (1) 509-518 F10.7 mag F814W HST/WFC3-UVIS2 F814W magnitude (Vega) (1) 522-531 F10.7 mag F845M HST/WFC3-UVIS2 F845M magnitude (Vega) (1) 535-544 F10.7 mag F850LP HST/WFC3-UVIS2 F850LP magnitude (Vega) (1) 548-557 F10.7 mag F953N HST/WFC3-UVIS2 F953N magnitude (Vega) (1) 561-570 F10.7 mag FQ232N HST/WFC3-UVIS2 FQ232N magnitude (Vega) (1) 574-583 F10.7 mag FQ243N HST/WFC3-UVIS2 FQ243N magnitude (Vega) (1) 587-596 F10.7 mag FQ378N HST/WFC3-UVIS2 FQ378N magnitude (Vega) (1) 600-609 F10.7 mag FQ387N HST/WFC3-UVIS2 FQ387N magnitude (Vega) (1) 613-622 F10.7 mag FQ422M HST/WFC3-UVIS2 FQ422M magnitude (Vega) (1) 626-635 F10.7 mag FQ436N HST/WFC3-UVIS2 FQ436N magnitude (Vega) (1) 639-648 F10.7 mag FQ437N HST/WFC3-UVIS2 FQ437N magnitude (Vega) (1) 652-661 F10.7 mag FQ492N HST/WFC3-UVIS2 FQ492N magnitude (Vega) (1) 665-674 F10.7 mag FQ508N HST/WFC3-UVIS2 FQ508N magnitude (Vega) (1) 678-687 F10.7 mag FQ575N HST/WFC3-UVIS2 FQ575N magnitude (Vega) (1) 691-700 F10.7 mag FQ619N HST/WFC3-UVIS2 FQ619N magnitude (Vega) (1) 704-713 F10.7 mag FQ634N HST/WFC3-UVIS2 FQ634N magnitude (Vega) (1) 717-726 F10.7 mag FQ672N HST/WFC3-UVIS2 FQ672N magnitude (Vega) (1) 730-739 F10.7 mag FQ674N HST/WFC3-UVIS2 FQ674N magnitude (Vega) (1) 743-752 F10.7 mag FQ727N HST/WFC3-UVIS2 FQ727N magnitude (Vega) (1) 756-765 F10.7 mag FQ750N HST/WFC3-UVIS2 FQ750N magnitude (Vega) (1) 769-778 F10.7 mag FQ889N HST/WFC3-UVIS2 FQ889N magnitude (Vega) (1) 782-791 F10.7 mag FQ906N HST/WFC3-UVIS2 FQ906N magnitude (Vega) (1) 795-804 F10.7 mag FQ924N HST/WFC3-UVIS2 FQ924N magnitude (Vega) (1) 808-817 F10.7 mag FQ937N HST/WFC3-UVIS2 FQ937N magnitude (Vega) (1) 821-830 F10.7 mag G280 HST/WFC3-UVIS2 G280 magnitude (Vega) (1)
Note (1): HST/WFC3-UVIS2 magnitudes are expressed in the Vega system.
Byte-by-byte Description of file: sdss.dat
Bytes Format Units Label Explanations
1- 6 I6 K Teff Effective temperature 8- 9 I2 10[cm/s2] logg log surface gravity * 10 15- 24 F10.7 mag umag SLOAN/SDSS u magnitude (AB) (1) 28- 37 F10.7 mag gmag SLOAN/SDSS g magnitude (AB) (1) 41- 50 F10.7 mag rmag SLOAN/SDSS r magnitude (AB) (1) 54- 63 F10.7 mag imag SLOAN/SDSS i magnitude (AB) (1) 67- 76 F10.7 mag zmag SLOAN/SDSS z magnitude (AB) (1)
Note (1): SLOAN/SDSS magnitudes are expressed in the AB system.
Byte-by-byte Description of file: spectra.dat
Bytes Format Units Label Explanations
1- 6 I6 K Teff Effective temperature 8- 9 I2 10[cm/s2] logg log surface gravity * 10 11 A1 --- LTE/NLTE [ln] l for LTE spectrum, n for NLTE spectrum 13- 24 A12 --- FileName Name of spectrum file in subdirectory sp (1)
Note (1): Files named tTTTgGGA.dat, where TTT is the effective temperature/1000 [K], GG the log surface gravity * 10 [cm/s2], and A (l or n), l for LTE spectrum (17000≤Teff≤34000), n for NLTE spectrum (35000≤Teff≤100000)
Byte-by-byte Description of file: sp/*
Bytes Format Units Label Explanations
1- 10 F10.3 0.1nm lambda Wavelength (Å) 12- 20 E9.4 cW/m2/nm Flux Eddington flux (erg/cm2/s/Å)
Acknowledgements: Ronaldo S. Levenhagen, ronaldo.levenhagen(at)gmail.com
(End) Ronaldo S. Levenhagen [Brazil], Patricia Vannier [CDS] 26-Jun-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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