Phoenix module

PHOENIX Spectrum Generation for star TRAPPIST-1 using pysynphot

Phoenix.Teff = 2566

Teff = 2566 +/- 26 K from Agol et al. 2021

Phoenix.Rs = 8292744000.0

Stellar radius planet from Agol et al. 2021 in cm

Phoenix.Ms = 1.5959799999999999e+32

Stellar mass in g

Phoenix.logg = 5.189952052020907

cgs

Phoenix.dist = 3.8473162e+19

stellar distance in pc, converted to cm

Phoenix.Rp = 711784800.0000001

cm b planet from Agol et al. 2021

Phoenix.a = 172638400000.0

cm b planet from Agol et al. 2021

Phoenix.e = 0.001

Wang et al. 2017 K2 (Note Luger et al. 2017 K2 data give e = 0.001)

Phoenix.T14 = 1944.0000000000002

transit duration (36 min x 0.9 eff)

Phoenix.P = 1.510826

days orbital period b planet from Agol et al. 2021

Phoenix.generate_phoenix_model()

Generate and save the PHOENIX model spectrum for TRAPPIST-1 using pysynphot.

  • Creates a PHOENIX stellar model for TRAPPIST-1 with specified parameters.

  • Normalizes the model to the observed J-band magnitude.

  • Converts the spectrum to wavelength in microns and flux in mJy (for JWST ETC).

  • Saves the spectrum to ‘TRAPPIST1_Phoenix_model.txt’.

  • Plots the spectrum between 10 and 20 microns.