Detecting false positives with PLATO using double-aperture photometry and centroid shifts

Open Access

Table 1

Noise and other parameters.

Symbol	Description	Value
$I_{n}^{T}$ $Mathematical equation: $\[\mathrm{I}_{\mathrm{n}}^{\mathrm{T}}\]$$	Target star flux contribution to pixel intensity

$I_{n}^{k}$ $Mathematical equation: $\[{\mathrm{I}_{\mathrm{n}}^{\mathrm{k}}}\]$$	Contaminant star flux contribution to pixel intensity

B	Sky-background (zodiacal light)	45e⁻/px/s

σ_D	Detector noise (readout, smearing and dark current)	50.2e⁻/px

σ_Q	Quantization noise	7.2e⁻/px

Δt_exp	Exposure time	21 s

Notes. Description of terms in Eqs. (1) and (B.1) and assumed values taken from Marchiori et al. (2019).

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