66 citations · 288 across the 13 of their papers we have counts for
11 papers · 1 filter
Constraining the orbit of the retrograde planet in the Octantis system
Alan Cefali Signor, Alexandre C. M. Correia, Maria Helena Moreira Morais +4
The Octantis system is composed of a compact stellar binary and a retrograde S-type planet orbiting near the edge of stability. Here, we investigate the dynamically viable arch…
Dynamical analysis of the 5:1 mean-motion resonance of the HD 202206 system
Yingyi Cao, Man Hoi Lee, Sabine Reffert +2
The HD 202206 system, which features two substellar companions with a 5:1 period ratio around a solar-type star, offers a rare opportunity to study high-order mean-motion resonance…
Resonant Chains and the Convergent Migration of Planets in Protoplanetary Disks
Ka Ho Wong, Man Hoi Lee
An increasing number of compact planetary systems with multiple planets in a resonant chain have been detected. The resonant chain must be maintained by convergent migration of the…
A new third planet and the dynamical architecture of the HD33142 planetary system
Trifon Trifonov, Anna Wollbold, Martin Kürster +24
Based on recently-taken and archival HARPS, FEROS and HIRES radial velocities (RVs), we present evidence for a new planet orbiting the first ascent red giant star HD33142 (with an…
The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti
S. Stock, J. Kemmer, S. Reffert +38
The nearby ultra-compact multiplanetary system YZ Ceti consists of at least three planets. The orbital period of each planet is the subject of discussion in the literature due to s…
The CARMENES search for exoplanets around M dwarfs. Dynamical characterization of the multiple planet system GJ 1148 and prospects of habitable exomoons around GJ 1148 b
T. Trifonov, M. H. Lee, M. Kürster +29
Context. GJ 1148 is an M-dwarf star hosting a planetary system composed of two Saturn-mass planets in eccentric orbits with periods of 41.38 and 532.02 days. Aims. We reanalyze the…
Dynamical analysis of the circumprimary planet in the eccentric binary system HD59686
Trifon Trifonov, Man Hoi Lee, Sabine Reffert +1
We present a detailed orbital and stability analysis of the HD~59686 binary-star planet system. HD~59686 is a single-lined moderately close (AU) eccentric ($e_{B} =…
Precise radial velocities of giant stars IX. HD 59686 Ab: a massive circumstellar planet orbiting a giant star in a ~13.6 au eccentric binary system
Mauricio Ortiz, Sabine Reffert, Trifon Trifonov +11
Context: For over 12 yr, we have carried out a precise radial velocity survey of a sample of 373 G and K giant stars using the Hamilton Échelle Spectrograph at Lick Observatory. Th…
Precise radial velocities of giant stars VI. A possible 2:1 resonant planet pair around the K giant star Cet
Trifon Trifonov, Sabine Reffert, Xianyu Tan +2
We report the discovery of a new planetary system around the K giant Cet (HIP 5364, HD 6805) based on 118 high-precision optical radial velocities taken at Lick Observatory sin…
Characterizing the Orbital and Dynamical State of the HD 82943 Planetary System With Keck Radial Velocity Data
Xianyu Tan, Matthew J. Payne, Man Hoi Lee +5
We present an updated analysis of radial velocity data of the HD 82943 planetary system based on 10 years of measurements obtained with the Keck telescope. Previous studies have sh…
An Analytic Theory for the Orbits of Circumbinary Planets
Gene C. K. Leung, Man Hoi Lee
Three transiting circumbinary planets (Kepler-16 b, Kepler-34 b, and Kepler-35 b) have recently been discovered from photometric data taken by the Kepler spacecraft. Their orbits a…