Extended Data Fig. 2: BEAGLE fits to GS-z10-0, GS-z11-0 and GS-z12-0.
From: Spectroscopic confirmation of four metal-poor galaxies at z = 10.3–13.2
The results of full spectral fitting to JADES-GS-z10-0 (top left), JADES-GS-z11-0 (top right) and JADES-GS-z12-0 (bottom) with BEAGLE. We fit models to spectra extracted over the full shutter aperture to minimise the wavelength-dependent losses due to varying point spread function (PSF). The triangle plot shows the 2D (off-diagonal) and 1D (along the main diagonal) posterior probability distributions on stellar mass (M), metallicity (Z), maximum age of stars (t) and the effective dust attenuation optical depth in the V-band (τˆv) which are all derived from the beagle fits. We also include the model constraints on the star formation rate (Ψ), UV slope (β) and ionizing photon emissivity (ξion), which are derived parameters of the model. The dark, medium and light blue contours show the extents of the 1, 2 and 3σ credible regions of the posterior probability, respectively. The inset panel shows the observed spectrum and 1σ standard errors per pixel in red and light red respectively, and the median and 1σ range in fitted model spectra in blue. We fit with a constant star formation history (more details in the text and Methods section 3).
