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Orbital and Atmospheric Characterization of the 1RXS J034231.8+121622 System using High-resolution Spectroscopy Confirms that the Companion is a Low-mass Star

  • Authors: Clarissa R. Do Ó, Ben Sappey, Quinn M. Konopacky, Jean-Baptiste Ruffio, Kelly K. O'Neil, Tuan Do, Gregory Martinez, Travis S. Barman, Jayke S. Nguyen, Jerry W. Xuan, Christopher A. Theissen, Sarah Blunt, William Thompson, Chih-Chun Hsu, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Daniel Echeverri, Luke Finnerty, Michael P. Fitzgerald, Julie Inglis, Nemanja Jovanovic, Ronald A. López, Dimitri Mawet, Evan Morris, Jacklyn Pezzato, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Jason J. Wang, Ji Wang, Joshua Liberman

Clarissa R. Do Ó et al 2024 The Astronomical Journal 167 .

  • Provider: AAS Journals

Caption: Figure 9.

New orbit fit of 1RXS0342+1216 with the new 2023A astrometry epoch, the 2020 RV data point, and the updated total system mass.The left panel shows in gray 100 randomly sampled visual orbits from the posteriors with the current astrometry plotted on top (previous astrometry points are shown in pink while the 2023A astrometry point is shown in green). The top-right plot shows in gray 100 randomly sampled orbits’ separation in arcseconds from the host star as a function of epoch. The bottom-right plot is the same as the top right, but with the position angle, or P.A., in degrees as a function of epoch.

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