Eureka! Outputs

Stage 2 through Stage 6 of Eureka! can be configured to output plots of the pipeline’s interim results as well as the data required to run further stages.

Stage 2 Outputs

If skip_extract_1d is set in the Stage 2 ECF, the 1-dimensional spectrum will not be extracted, and no plots will be made. Otherwise, Stage 2 will extract the 1-dimensional spectrum from the calibrated images, and will plot the spectrum.

Fig 2101: 1-Dimensional Spectrum Plot

Stage 3 Outputs

In Stage 3 through Stage 5, output plots are controlled with the isplots_SX parameter. The resulting plots are cumulative: setting isplots_S3 = 5 will also create the plots specified in isplots_S3 = 3 and isplots_S3 = 1.

In Stage 3:

• If isplots_S3 = 1: Eureka! will plot the 2-dimensional, non-drift-corrected light curve, as well as variations in the source position and width on the detector.

Fig 3101: 2-Dimensional Spectrum Plot with a linear wavelength x-axis

Fig 3102: 2-Dimensional Spectrum Plot with a linear detector pixel x-axis

Fig 3103: Source Position Fit Plot

Fig 3104: Variations in the spatial-axis position

Fig 3105: Variations in the spatial-axis PSF width

Fig 3106: 2D drift fit (currently only produced for WFC3)

Fig 3107: Measured, smoothed, and integer-rounded position of trace

• If isplots_S3 = 3: Eureka! will plot the results of the background and optimal spectral extraction steps for each exposure in the observation as well as the cleaned median frame.

Fig 3301: Background Subtracted Flux Plot

Fig 3302: 1-Dimensional Spectrum Plot

Fig 3303: Weighting Profile Plot

Fig 3304: Residual Background Plot

Fig 3308: Clean Median Frame Plot

• If isplots_S3 = 5: Eureka! will plot the Subdata plots from the optimal spectral extraction step.

Fig 3501: Spectral Extraction Subdata Plot

Stage 4 Outputs

In Stage 4:

• If isplots_S4 = 1: Eureka! will plot the spectral drift per exposure, the drift-corrected 2-dimensional lightcurve with extracted bins overlaid, and the 1D light curves.

Fig 4101: 2-Dimensional Spectrum with a linear wavelength x-axis.

Fig 4102: 1-Dimensional Binned Spectrum

Fig 4103: Spectral Drift Plot

• If isplots_S4 = 3: Eureka! will plot the cross-correlated reference spectrum with the current spectrum for each integration, and the cross-correlation strength for each integration.

Fig 4301: Cross-Correlated Reference Spectrum

Fig 4302: Cross-Correlation Strength

Stage 5 Outputs

In Stage 5:

• If isplots_S5 = 1: Eureka! will plot the fitted lightcurve model over the data in each channel. If fitting with a GP, an additional figure will be made showing the GP component. Finally, an additional plot compares the fits from different fitters.

Fig 5101: Fitted Lightcurve, Model, and Residual Plot

Fig 5102: Fitted Lightcurve, GP Model, and Residual Plot

Fig 5102: Comparison of Different Fitters

• If isplots_S5 = 3: Eureka! will plot an RMS deviation plot for each channel to help check for correlated noise, plot the normalized residual distribution, and plot the fitting chains for each channel.

Fig 5301: RMS Deviation Plot

Fig 5302: Residual Distribution

Figs 5303: Fitting Chains. Only made for emcee runs. Two version of the plot will be saved, one including the burn in steps and one without the burn in steps.

• If isplots_S5 = 5, and if emcee or dynesty were used as the fitter: Eureka! will plot a corner plot for each channel.

Fig 5501: Corner Plot

Stage 6 Outputs

In Stage 6:

• If isplots_S6 = 1: Eureka! will plot the transmission or emission spectrum, depending on the setting of y_unit. If a model is provided, it will be plotted on the same figure along with points binned from that model to the resolution of the data.

Fig 6101: Transmission Spectrum.

Fig 6101: Emission Spectrum.

• If isplots_S6 = 3: Eureka! will make another transmission plot (if y_unit is transmission type) with a second y-axis which is in units of atmospheric scale height.

Fig 6301: Transmission Spectrum with Double y-axis.