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The full PEGASUS model grid is available for download.
Each subgrid contains 72 models with different upper atmospheric structures. These models have EUV-NUV flux densities that span three orders of magnitude.
The PHOENIX spectra (EUV - IR; 100 Å to 100 μm) are saved in FITS file format. The wavelengths (given in Angstroms) are in vacuum and the wavelength grid has a resolution of <0.1 Å. Please note that the wavelength grid is not uniformly spaced. The flux densities (given in ergs/cm2/s/Å) are that at the stellar surface and are scalable to a distance D via (Rstar/D)2.
PLEASE NOTE:
These models are generic spectra for the specified stellar parameters (Teff, log(g), and M) and simulate various levels of UV flux which may not be physical. Please use with caution.
| Subgrid | Teff (K) | Log(g) (cm/s2) | M (Msun) | Download Link |
|---|---|---|---|---|
| K0 | 5044 | 4.45 | 0.89 | K0_PEGASUS_subgrid.tar.gz |
| K1 | 4884 | 4.50 | 0.86 | K1_PEGASUS_subgrid.tar.gz |
| K2 | 4749 | 4.52 | 0.83 | K2_PEGASUS_subgrid.tar.gz |
| K3 | 4654 | 4.55 | 0.79 | K3_PEGASUS_subgrid.tar.gz |
| K4 | 4460 | 4.59 | 0.74 | K4_PEGASUS_subgrid.tar.gz |
| K5 | 4239 | 4.62 | 0.70 | K5_PEGASUS_subgrid.tar.gz |
| K6 | 4100 | 4.65 | 0.65 | K6_PEGASUS_subgrid.tar.gz |
| K7 | 3927 | 4.69 | 0.61 | K7_PEGASUS_subgrid.tar.gz |
| K8 | 3893 | 4.70 | 0.60 | K8_PEGASUS_subgrid.tar.gz |
| K9 | 3804 | 4.73 | 0.57 | K9_PEGASUS_subgrid.tar.gz |
| M0 | 3850 | 4.78 | 0.53 | M0_PEGASUS_subgrid.tar.gz |
| M1 | 3700 | 4.81 | 0.50 | M1_PEGASUS_subgrid.tar.gz |
| M2 | 3550 | 4.88 | 0.40 | M2_PEGASUS_subgrid.tar.gz |
| M3 | 3400 | 4.96 | 0.30 | M3_PEGASUS_subgrid.tar.gz |
| M4 | 3200 | 5.10 | 0.18 | M4_PEGASUS_subgrid.tar.gz |
| M5 | 3050 | 5.17 | 0.13 | M5_PEGASUS_subgrid.tar.gz |
| M6 | 2900 | 5.22 | 0.11 | M6_PEGASUS_subgrid.tar.gz |
| M7 | 2650 | 5.30 | 0.09 | M7_PEGASUS_subgrid.tar.gz |
| M8 | 2500 | 5.32 | 0.08 | M8_PEGASUS_subgrid.tar.gz |