Source Model Data
1D pure-hydrogen (DA) non-local thermodynamic equilibrium (NLTE) spectra
Convection model is 1D ML2/alpha = 0.8
Main references
Tremblay, P.-E., Bergeron, P. & Gianninas, A. (2011) ApJ, 730, 128.
Kowalski, P. M. & Saumon, D. (2006) ApJL, 651, L137.
With line profiles from
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
Note: source model atmospheres are available upon request.
For spectroscopic fitting 3D corrections should be added for accurate atmospheric parameters. For photometric fitting 1D models are sufficient but please check the 3D grid and reference below for UV photometry. The link below provides 3D correction functions in Fortran and IDL.
3D corrections
Main reference (3D corrections)
Tremblay, P.-E., Ludwig, H.-G., Steffen, M. & Freytag, B. (2013) A&A, 559, A104.
1D pure-hydrogen (DA) extremely low-mass (ELM) LTE spectra
Convection model is 1D ML2/alpha = 0.8
Main reference
Claret, A., Cukanovaite, E., Burdge, K., Tremblay, P.-E. et al. (2020) A&A, 634, A93.
With line profiles from
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
For spectroscopic fitting 3D corrections should be added for accurate atmospheric parameters. For photometric fitting 1D models are sufficient but please check the 3D grid and reference below for UV photometry. The link below provides 3D correction functions in Fortran and IDL.
3D corrections
Main reference (3D corrections)
Tremblay, P.-E., Gianninas, A., Kilic, M. et al. (2015) ApJ, 809, 148.
1D helium-rich (DB/DBA/DC) local thermodynamic equilibrium (LTE) spectra
Convection model is 1D ML2/alpha = 1.25
Main reference
Cukanovaite, E., Tremblay, P.-E., Bergeron, P. et al. (2021) MNRAS, 501, 5274.
Note: source model atmospheres are available upon request.
For spectroscopic fitting 3D corrections should be added for accurate atmospheric parameters. For photometric fitting 1D models are sufficient. The link below provides 3D correction functions as a Python code.
Main reference (3D corrections)
Cukanovaite, E., Tremblay, P.-E., Bergeron, P. et al. (2021) MNRAS, 501, 5274.
⟨3D⟩ pure-hydrogen (DA) LTE spectra
New (March 2024) - grid with extended wavelength coverage and resolution (vacuum wavelengths)
Source data - Without H2 molecular lines
Source data - With H2 molecular lines
Info
Main references
Tremblay, P.-E., Ludwig, H.-G., Steffen, M. & Freytag, B. (2013) A&A, 559, A104.
Tremblay, P.-E., Gianninas, A., Kilic, M., et al. (2015) ApJ, 809, 148.
With hydrogen line profiles from
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
Note: source model atmospheres (3D data cubes) are available upon request.
New (March 2024) - NLTE corrections to the line cores are now available for high-resolution spectral fitting.
See Kilic et al. 2021 for details, please email us if you need these corrections.
[Archive: Source data from 2015]
1D radiative (DA) LTE spectra (convection inhibited by magnetic fields)
Source data
Info
Main references
Gentile Fusillo, N. P., Tremblay, P.-E., Jordan, S. et al. (2018) MNRAS, 473, 3693.
Tremblay, P.-E., Fontaine, G., Freytag, B. et al. (2015) ApJ, 812, 19.
With line profiles from
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
⟨3D⟩ helium-rich (DB/DBA/DC) LTE spectra
Source data
Info
Main reference
Cukanovaite, E., Tremblay, P.-E., Bergeron, P. et al. (2021) MNRAS, 501, 5274.
Note: source model atmospheres (3D data cubes) are available upon request.
Gravity and limb-darkening coefficients and Doppler beaming factors for DA, DB, and DBA white dwarfs
Source data 1
Source data 2
Intensities for DA white dwarfs at 20 different angles, for 1D LTE (4000 to 35,000 K) and 1D NLTE (40,000 to 100,000 K)
Main references
Claret, A., Cukanovaite, E., Burdge K., Tremblay, P.-E. et al. (2020) A&A, 634, A93.
Claret, A., Cukanovaite, E., Burdge K., Tremblay, P.-E. et al. (2020) A&A, 641, A157.
Derived data: Photometric absolute magnitudes (colours)
| Survey // Composition | pure-H | pure-He | H/He = 1e-2 | H/He = 1e-5 | H/He = 1e-8 |
| Gaia EDR3 | download | download | download | download | download |
| Pan-STARRS | download | download | download | download | download |
| SDSS | download | download | download | download | download |
| 2MASS | download | download | download | download | download |
| WISE | download | download | download | download | download |
| GALEX | download | download | download | download | download |
Main references
Tremblay, P.-E., Bergeron, P. & Gianninas, A. (2011) ApJ, 730, 128.
Kowalski, P. M. & Saumon, D. (2006) ApJL, 651, L137.
Cukanovaite, E., Tremblay, P.-E., Bergeron, P., et al. (2021) MNRAS, 501, 5274.
Bédard, A., Bergeron, P., Brassard, P. and Fontaine, G. (2020) ApJ, 901, 93
Note: Other filters are available upon request. Alternatively, model atmospheres in previous sections can be downloaded and integrated using an appropriate mass-radius relation to reproduce and expand these derived data.
Hydrogen Stark broadening profiles including non-ideal gas effects
Source data
Info file
Main reference
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
Links to useful external model data
STELUM evolutionary white dwarf sequences and mass-radius relation for C/O core white dwarfs
Bédard, A., Bergeron, P., Brassard, P. and Fontaine, G. (2020) ApJ, 901, 93.
La Plata evolutionary white dwarf sequences and mass-radius relation for different He-, C/O- and O/Ne core-compositions
Althaus, L. et al. (2013) A&A 557, A19.
Camisassa, M. et al. (2016) ApJ 823,158.
Camisassa, M. et al. (2019) A&A 625, A87.
Rohrmann, R. D. et al. (2012) A&A, 546.
Rohrmann, R. D. (2018) MNRAS, 473, 457.
Evolutionary white dwarf sequences and mass-radius relations for He-core composition
Istrate, A. G., Marchant, P., Tauris, T. M. et al. (2016) A&A, 595, A35.
BaSTI white dwarf evolutionary sequences
Salaris, M., Cassisi, S., Pietrinferni, A. and Hidalgo, S. (2022) MNRAS, 509, 5197.
Synthetic colours for pure-hydrogen and pure-helium white dwarf atmospheres
Tremblay, P.-E., Bergeron, P. & Gianninas, A. (2011) ApJ, 730, 128.
Blouin, S. et al. (2018) ApJ, 863, 184.
Bergeron, P. et al. (2011) ApJ, 737, 28.
Kowalski P. M. & Saumon D. (2006) ApJL, 651, L137.
Bédard, A. et al. (2020) ApJ, 901, 93.
Diffusion timescales for white dwarfs
Koester, D. et al. (2020) A&A 635,103.
Diffusion timescales for white dwarfs
Fontaine, G., Brassard, P., Dufour, P. and Tremblay, P.-E. (2015) ASPC, 493, 113.
1D pure-hydrogen (DA) LTE white dwarf spectra
Koester, D. 2010 (MSAI) 81, 921.
Tremblay, P.-E. & Bergeron, P. (2009) ApJ, 696, 1755.
TMAP 1D pure-hydrogen and helium-rich (DA/DB/DO/DAO/DBA) NLTE white dwarf spectra
Werner, K. at al. 2003 (ASPC) 288, 31W.