Table 2.
References for the atomic and molecular opacities available for use in petitRADTRANS.
| Opacity source | Spectral range (μm) | Line list | Partition function | Pressure broadening | Line Cutoff |
|---|---|---|---|---|---|
| CH4 | 0.83 < λ | YT14 | F03 | Eq. (15), SB07 | HB02 |
| C2H2 | 1 < λ < 16.5 | HITRAN | F03 | γair | HB02 |
| CO | 1.18 < λ | HITEMP | F03 | γair | HB02 |
| CO | 0.112 < λ < 0.43 | K93 | F03 | Eq. (15), SB07 | HB02 |
| CO2 | 1 < λ < 38.76 | HITEMP | F03 | γair | BG69 |
| H2S | 0.88 < λ | HITRAN | F03 | γair | HB02 |
| H2 | 0.28 < λ | HITRAN | F03 | γair | HB02 |
| H2 | 0.08 < λ < 0.18 | K93 | F03 | Eq. (15), SB07 | HB02 |
| HCN | 2.92 < λ | HT06, BS14 | F03 | Eq. (15), SB07 | HB02 |
| H2O | 0.33 < λ | HITEMP | F03 | γair | HB02 |
| K | 0.05 < λ | PK95 | ST84 | N. Allard (a), SH96 | HB02 |
| Na | 0.1 < λ | PK95 | ST84 | N. Allard (a), SH96 | HB02 |
| NH3 | 0.8 < λ | YB11 | SH14 | Eq. (15), SB07 | HB02 |
| O3 | 1.43 < λ | HITRAN | F03 | γair | HB02 |
| OH | 0.52 < λ | HITEMP | F03 | γair | HB02 |
| PH3 | 1 < λ | SA15 | F03 | Eq. (15), SB07 | HB02 |
| TiO | 0.32 < λ | B. Plez (a) | U. Jørgensen (b) | Eq. (15), SB07 | HB02 |
| VO | 0.36 < λ < 2.6 | B. Plez (a) | B. Plez (a) | Eq. (15), SB07 | HB02 |
| SiO | 1.6 < λ | BY13 | BY13 | Eq. (15), SB07 | HB02 |
| FeH | 0.67 < λ | WR10 | WR10 | Eq. (15), SB07 | HB02 |
Notes.
partition function retrievable from http://www.astro.ku.dk/~uffegj/scan/scan_tio.pdf. For all molecules, except for CO and TiO, only the main isotopologue opacities are used in the low resolution mode. At high resolution also secondary isotopologues are available for some species, see the documentation at https://petitradtrans.readthedocs.io for an up-to-date list. The documentation website also contains a short tutorial of the ExoCross code (Yurchenko et al. 2018), and how to convert its resulting Exomol opacity calculations for use in petitRADTRANS. This allows the petitRADTRANS user to calculate line opacities of additional species, for the low and high resolution modes.
References. HITEMP: Rothman et al. (2010), HITRAN Rothman et al. (2013), SB07: Sharp & Burrows (2007), F03: Fischer et al. (2003), ST84: Sauval & Tatum (1984), K93: Kurucz (1993), YT14: Yurchenko & Tennyson (2014), YB11: Yurchenko et al. (2011), SH96: Schweitzer et al. (1996), SH14: Sousa-Silva et al. (2014), SA15: Sousa-Silva et al. (2015), HT06: Harris et al. (2006), BS14: Barber et al. (2014), PK95: Piskunov et al. (1995), HB02: Hartmann et al. (2002), BG69: Burch et al. (1969), BY13: Barton et al. (2013), WR10: Wende et al. (2010).
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