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The Interpolation Constraint in the RV Analysis of M Dwarfs Using Empirical Templates

  • Authors: Dhvani Doshi, Nicolas B. Cowan, Étienne Artigau, René Doyon, André M. Silva, Khaled Al Moulla, Yashar Hezaveh

Dhvani Doshi et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 4.

The standard deviation of the Z-scores between the observation and the template is shown for different cases. A standard deviation greater than one indicates interpolation errors. Top: the significance of interpolation error depends on both sampling resolution and photon noise, with each line representing a different sampling resolution. Bottom: the standard deviation of the Z-scores for different M-dwarf types at SPIRou’s native resolution shows that interpolation errors increase for cooler M dwarfs with higher RV content.

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