11 papers
Asymmetrical shape of the Near-Infrared K 4p-5s doublet perturbed by He and H2
N. F. Allard, J. F. Kielkopf
The goal of this paper is to provide an exhaustive study of the K 4p-5s doublet at 1.243/1.252~m perturbed by He and H in physical conditions of brown dwarfs. This work is…
CAFE follow-up of TESS hot Jupiter candidates left behind: I. Five newly confirmed planets and a false positive
J. Lillo-Box, C. Cifuentes, O. Balsalobre-Ruza +56
Hot Jupiters are key targets for understanding planet formation, migration, and atmospheres. Yet, most ground-based follow-up resources for the TESS mission are focused on confirmi…
The Pan-Pacific Planet Search -- IX. A menagerie of companions orbiting evolved stars
Robert A. Wittenmyer, Alexander Venner, Tyler Fairnington +22
We present resolutions as to the nature of six speculative candidate companions proposed in the final data release of the Pan-Pacific Planet Search, a 6-year radial-velocity survey…
Finding Alien Worlds in Queensland -- A Decade of MINERVA-Australis
Jonathan Horner, Robert A. Wittenmyer, Stephen R. Kane +2
Three decades ago, humanity entered the Exoplanet Era, with the discovery of the first planets orbiting other stars. Today, more than 6000 exoplanets are known - a tally recently b…
NGTS-11 c: a transiting Neptune-mass planet interior to the warm Saturn NGTS-11 b
David R. Anderson, Jose I. Vines, Katharine Hesse +56
We report the discovery of NGTS-11 c, a transiting warm Neptune ( d; ; ), in an…
Line shapes of the Na/K resonance line profiles perturbed by H2 at extreme density
N. F. Allard, J. F. Kielkopf
Collision broadening by molecular hydrogen of sodium and potassium is one of the major broadening mechanisms in the atmospheres of brown dwarf stars and exoplanets at an effective…