Updated Planetary Mass Constraints of the Young V1298 Tau System Using MAROON-X by James Sikora, Jason Rowe, Saugata Barat, Jacob L. Bean, Madison Brady, Jean-Michel Désert, Adina D. Feinstein, Emily A. Gilbert, Gregory Henry, David Kasper, Déreck-Alexandre Lizotte, Michael R. B. Matesic, Vatsal Panwar, Andreas Seifahrt, Hinna Shivkumar, Gudmundur Stefánsson, Julian Stürmer

“…The early K-type T-Tauri star, V1298 Tau ( V = 10 mag, age ≈ 20–30 Myr) hosts four transiting planets with radii ranging from 4.9 to 9.6 R _⊕ . …”
Get full text

Measuring the Obliquities of the TRAPPIST-1 Planets with MAROON-X by Madison Brady, Jacob L. Bean, Andreas Seifahrt, David Kasper, Rafael Luque, Ansgar Reiners, Björn Benneke, Gudmundur Stefánsson, Julian Stürmer

Get full text

Unifying High- and Low-resolution Observations to Constrain the Dayside Atmosphere of KELT-20b/MASCARA-2b by David Kasper, Jacob L. Bean, Michael R. Line, Andreas Seifahrt, Madison T. Brady, Joshua Lothringer, Lorenzo Pino, Guangwei Fu, Stefan Pelletier, Julian Stürmer, Björn Benneke, Matteo Brogi, Jean-Michel Désert

“…We do not see evidence for additional species in the MAROON-X data, including notably predicted thermal inversion agents TiO and VO, their atomic constituents Ti i and V i , and previously claimed species Fe ii and Cr i . …”
Get full text

A Nondetection of Iron in the First High-resolution Emission Study of the Lava Planet 55 Cnc e by Kaitlin C. Rasmussen, Miles H. Currie, Celeste Hagee, Christiaan van Buchem, Matej Malik, Arjun B Savel, Matteo Brogi, Emily Rauscher, Victoria Meadows, Megan Mansfield, Eliza M.-R. Kempton, Jean-Michel Desert, Joost P. Wardenier, Lorenzo Pino, Michael Line, Vivien Parmentier, Andreas Seifahrt, David Kasper, Madison Brady, Jacob L. Bean

Get full text

A Wolf 359 in Sheep's Clothing: Hunting for Substellar Companions in the Fifth-closest System Using Combined High-contrast Imaging and Radial Velocity Analysis by Rachel Bowens-Rubin, Joseph M. Akana Murphy, Philip M. Hinz, Mary Anne Limbach, Andreas Seifahrt, Rocio Kiman, Maïssa Salama, Sagnick Mukherjee, Madison Brady, Aarynn L. Carter, Rebecca Jensen-Clem, Maaike A. M. van Kooten, Howard Isaacson, Molly Kosiarek, Jacob L. Bean, David Kasper, Rafael Luque, Gudmundur Stefánsson, Julian Stürmer

Get full text

TOI-561 b: A Low-density Ultra-short-period “Rocky” Planet around a Metal-poor Star by Casey L. Brinkman, Lauren M. Weiss, Fei Dai, Daniel Huber, Edwin S. Kite, Diana Valencia, Jacob L. Bean, Corey Beard, Aida Behmard, Sarah Blunt, Madison Brady, Benjamin Fulton, Steven Giacalone, Andrew W. Howard, Howard Isaacson, David Kasper, Jack Lubin, Mason MacDougall, Joseph M. Akana Murphy, Mykhaylo Plotnykov, Alex S. Polanski, Malena Rice, Andreas Seifahrt, Guðmundur Stefánsson, Julian Stürmer

“…We present new simultaneous radial velocity (RV) measurements from Gemini-N/MAROON-X and Keck/HIRES, which we combined with literature RVs to derive a mass of M _b = 2.24 ± 0.20 M _⊕ . …”
Get full text