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TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf

  • Authors: Ismael Mireles, Diana Dragomir, Hugh P. Osborn, Katharine Hesse, Karen A. Collins, Steven Villanueva, Allyson Bieryla, David R. Ciardi, Keivan G. Stassun, Mallory Harris, Jack J. Lissauer, Richard P. Schwarz, Gregor Srdoc, Khalid Barkaoui, Arno Riffeser, Kim K. McLeod, Joshua Pepper, Nolan Grieves, Vera Maria Passegger, Solène Ulmer-Moll, Joseph E. Rodriguez, Dax L. Feliz, Samuel Quinn, Andrew W. Boyle, Michael Fausnaugh, Michelle Kunimoto, Pamela Rowden, Andrew Vanderburg, Bill Wohler, Jon M. Jenkins, David W. Latham, George R. Ricker, Sara Seager, Joshua N. Winn

Ismael Mireles et al 2023 The Astrophysical Journal Letters 954 .

  • Provider: AAS Journals

Caption: Figure 3.

Top left: ground-based photometry from LCO, Wendelstein Observatory, Kotizarovci Observatory, and Whitin Observatory showing a transit from TOI-4600 b with the best-fit model overlaid. Top right: Palomar NIR AO imaging and sensitivity curves for TOI-4600 taken in the Brγ filter. The images were taken in good seeing conditions, and we reach a contrast of ∼7 mag fainter than the host star within 0.″5. Inset: image of the central portion of the data, centered on the star. Bottom: RVs extracted from the TRES reconnaissance spectra taken over the span of over a year and best-fit radvel model.

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