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Machine-learning Morphological Classification of TESS Light Curves of T Tauri Stars

  • Authors: Astaroth Elizabethson, Javier Serna, Alejandro García-Varela, Jesús Hernández, Juan F. Cabrera-García

Astaroth Elizabethson et al 2023 The Astronomical Journal 166 .

  • Provider: AAS Journals

Caption: Figure 7.

Distribution of 706 candidates to P or DB classes proposed by the algorithm. In the upper panel we have a density histogram of the color of both classes giving an estimation of their probability densities. In the bottom panel we show a color–magnitude diagram using K and W3 bands obtained from the AllWISE catalog (Cutri et al. 2021), and selected to have a profile-fit flux signal-to-noise ratio over 2, and discarding those with possible contamination or bias due to proximity to an image artifact. The number of members in each star-forming region is distributed as follows: 457 stars in OSFC, 112 in Upper Scorpius, 60 in γ Velorum, 49 in IC 348, 19 in Corona Australis, and nine in Perseus OB2. The color–magnitude diagram shows that the behavior of the infrared excess of both classes occurs among all regions we studied.

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