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6 papers · 2 filters
Equilibrium Condensation from Chondritic Porous IDP Enriched Vapor: Implications for Mercury and Enstatite Chondrite Origins
Denton S. Ebel, Conel M. O'D. Alexander
The origin of Mercury's anomalous core and low FeO surface mineralogy are outstanding questions in planetary science. Mercury's composition may result from cosmochemical controls o…
A Transiting Super-Earth in the Radius Valley and An Outer Planet Candidate Around HD 307842
Xinyan Hua, Sharon Xuesong Wang, Johanna K. Teske +32
We report the confirmation of a TESS-discovered transiting super-Earth planet orbiting a mid-G star, HD 307842 (TOI-784). The planet has a period of 2.8 days, and the radial veloci…
A Mini-Neptune Orbiting the Metal-poor K Dwarf BD+29 2654
Fei Dai, Kevin C. Schlaufman, Henrique Reggiani +48
We report the discovery and Doppler mass measurement of a 7.4-day 2.3- mini-Neptune around a metal-poor K dwarf BD+29 2654 (TOI-2018). Based on a high-resolution Keck/HIR…
TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet
J. Korth, D. Gandolfi, J. Šubjak +59
The TOI-1130 is a known planetary system around a K-dwarf consisting of a gas giant planet, TOI-1130 c, on an 8.4-day orbit, accompanied by an inner Neptune-sized planet, TOI-1130…
Doppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions
Katherine Laliotis, Jennifer A. Burt, Eric E. Mamajek +22
Directly imaging temperate rocky planets orbiting nearby, Sun-like stars with a 6-m-class IR/O/UV space telescope, recently dubbed the Habitable Worlds Observatory, is a high prior…
TOI-2525 b and c: A pair of massive warm giant planets with a strong transit timing variations revealed by TESS
Trifon Trifonov, Rafael Brahm, Andres Jordan +44
TOI-2525 is a K-type star with an estimated mass of M = 0.849 M and radius of R = 0.785 R observed by the TESS mission in 22…