Improving Earth-like planet detection in radial velocity using deep learning

Open Access

Table 5

Summary of neural network performance on different stars at different YARARA corrections.

The Sun				HD 128621			HD 10700

YV1 Spectra

	RV	FWHM	BIS	RV	FWHM	BIS	RV	FWHM	BIS

σ_raw (m s⁻¹)	0.822	0.682	0.480	2.166	1.241	1.328	1.100	1.018	0.478
σ_residual (m s⁻¹)	0.663	0.553	0.314	0.970	0.703	0.611	0.997	0.897	0.482

YVA spectra

	RV	FWHM	BIS	RV	FWHM	BIS

σ_raw (m s⁻¹)	2.206	3.592	1.028	2.621	14.718	3.339
σ_residual (m s⁻¹)	0.872	0.584	0.339	1.582	1.642	0.780

YV0 Spectra

	RV	FWHM	BIS

σ_raw (m s⁻¹)	2.446	4.516	1.084
σ_residual (m s⁻¹)	0.898	0.908	0.363

Notes. σ_residual is the residual after after extracting the neural network’s prediction from the original time series.

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