MSG: A software package for interpolating stellar spectra in pre-calculated grids

Abstract

While the spectrum of the light emitted by a star can be calculated by simulating the flow of radiation through each layer of the star's atmosphere, this process is computationally expensive. Therefore, it is often far more efficient to pre-calculate spectra over a grid of photospheric parameters, and then interpolate within this grid. MSG (short for Multidimensional Spectral Grids) is a software package that implements this interpolation capability.

arXiv commentRepository at https://github.com/rhdtownsend/msg , documentation at https://msg.readthedocs.io/en/stable/

References in corpus (10)

• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• A Grid of NLTE Line-Blanketed Model Atmospheres of O-type Stars
• A Grid of NLTE Line-Blanketed Model Atmospheres of Early B-type Stars
• The AMBRE project: A new synthetic grid of high-resolution FGKM stellar spectra
• Constructing A Flexible Likelihood Function For Spectroscopic Inference
• A collection of model stellar spectra for spectral types B to early-M
• The Stagger-grid: A grid of 3D stellar atmosphere models V. Synthetic stellar spectra and broad-band photometry
• Grids of ATLAS9 Model Atmospheres and MOOG Synthetic Spectra
• On the Interpolation of Model Atmospheres and High-Resolution Synthetic Stellar Spectra
• Creating and using large grids of precalculated model atmospheres for a rapid analysis of stellar spectra

Cited by in corpus (13)

• Atmospheric Reconnaissance of TRAPPIST-1 b with JWST/NIRISS: Evidence for Strong Stellar Contamination in the Transmission Spectra
• A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b
• Double Trouble: Two Transits of the Super-Earth GJ 1132 b Observed with JWST NIRSpec G395H
• JWST/NIRISS reveals the water-rich "steam world" atmosphere of GJ 9827 d
• Near-Infrared Transmission Spectroscopy of HAT-P-18b with NIRISS: Disentangling Planetary and Stellar Features in the Era of JWST
• Escaping Helium and a Highly Muted Spectrum Suggest a Metal-Enriched Atmosphere on Sub-Neptune GJ3090b from JWST Transit Spectroscopy
• The photometric variability of massive stars due to gravity waves excited by core convection
• Transmission spectroscopy of WASP-52 b with JWST NIRISS: Water and helium atmospheric absorption, alongside prominent star-spot crossings
• Additional JWST/NIRSpec Transits of the Rocky M Dwarf Exoplanet GJ 1132 b Reveal a Featureless Spectrum
• Possible Evidence for the Presence of Volatiles on the Warm Super-Earth TOI-270 b
• GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere
• The coevolution of migrating planets and their pulsating stars through episodic resonance locking
• The HUSTLE Program: The UV to Near-IR Transmission Spectrum of the Hot Jupiter KELT-7b