English
Related papers

Related papers: ARDENT: A Python package for fast dynamical detect…

200 papers

We present an analysis of high precision radial velocity (RV) observations of stars hosting multi-planet systems with Jovian companions. We use dynamical stability constraints and quasi-global methods of optimization. As an illustration, we…

Astrophysics · Physics 2008-02-05 K. Gozdziewski , C. Migaszewski , A. Musielinski

In this paper, we propose an efficient frontier detector method based on adaptive Rapidly-exploring Random Tree (RRT) for autonomous robot exploration. Robots can achieve real-time incremental frontier detection when they are exploring…

Robotics · Computer Science 2022-04-14 Zezhou Sun , Banghe Wu , Chengzhong Xu , Hui Kong

We developed and provide AnalyticLC, a novel analytic method and code implementation for dynamical modeling of planetary systems, including non-coplanar interactions, based on a disturbing function expansion to fourth order in…

Earth and Planetary Astrophysics · Physics 2022-02-02 Yair Judkovsky , Aviv Ofir , Oded Aharonson

Knowledge of the interior density distribution of an asteroid can reveal its composition and constrain its evolutionary history. However, most asteroid observational techniques are not sensitive to interior properties. We investigate the…

Earth and Planetary Astrophysics · Physics 2022-10-20 Jack T Dinsmore , Julien de Wit

Empirical exoplanet mass-radius relations have been used to study the demographics and compositions of small exoplanets for many years. However, the heterogeneous nature of these measurements hinders robust statistical analysis of this…

Earth and Planetary Astrophysics · Physics 2024-12-25 H. L. M. Osborne , L. D. Nielsen , V. Van Eylen , O. Barragán

The technique of radial velocity (RV) has produced spectacular discoveries of short-period Jovian mass objects around a fraction (5 to 10%) of nearby G stars. Although we expect Jovian planets to be located in long-period orbits of decades…

Astrophysics · Physics 2009-10-31 J. A. Eisner , S. R. Kulkarni

We present CONAN (COde for exoplaNet ANalysis), an open-source Python package for comprehensive analyses of exoplanetary systems. It provides a unified Bayesian framework to simultaneously analyze diverse exoplanet datasets to derive global…

Instrumentation and Methods for Astrophysics · Physics 2025-08-29 Babatunde Akinsanmi , Monika Lendl , Andreas Krenn

The probability of the detection of Earth-like exoplanets may increase in the near future after the launch of the space missions using the transit photometry as observation method. By using this technique only the semi-major axis of the…

Astrophysics · Physics 2009-11-11 Zsolt Sandor

Multi-planet systems exhibit a diversity of architectures that diverge from the solar system and contribute to the topic of exoplanet demographics. Radial velocity (RV) surveys form a crucial component of exoplanet surveys, as their long…

So far radial velocity (RV) measurements have discovered ~25 stars to host multiple planets. The statistics imply that many of the known hosts of transiting planets should have additional planets, yet none have been solidly detected. They…

Astrophysics · Physics 2009-11-13 Daniel C. Fabrycky

The detection of Earth-like planets, exocomets or Kuiper belts show that the different components found in the solar system should also be present in other planetary systems. Trojans are one of these components and can be considered fossils…

Earth and Planetary Astrophysics · Physics 2018-01-24 J. Lillo-Box , D. Barrado , P. Figueira , A. Leleu , N. C. Santos , A. C. M. Correia , P. Robutel , J. P. Faria

Based on the long-term radial-velocity surveys carried out with the McDonald Observatory 2.7m Harlan J. Smith Telescope from 1988 to the present, we derive upper limits to long-period giant planet companions for 31 nearby stars. Data from…

Long time coverage and high radial velocity precision have allowed for the discovery of additional objects in known planetary systems. Many of the extrasolar planets detected have highly eccentric orbits, which raises the question of how…

Astrophysics · Physics 2009-06-23 Robert A. Wittenmyer , Michael Endl , William D. Cochran , Harold F. Levison

Giant, wide-separation planets often lie in the gap between multiple, distinct rings of circumstellar debris: this is the case for the HR\,8799 and HD\,95086 systems, and even the solar system where the Asteroid and Kuiper belts enclose the…

The Asteroid Terrestrial-impact Last Alert System (ATLAS) is an all-sky optical sky survey with a cadence of 24 to 48 hours and the ATLAS Transient Server processes the alert stream to enable the discovery and follow-up of extra-galactic…

Instrumentation and Methods for Astrophysics · Physics 2025-06-10 Heloise F. Stevance , Jack Leland , Ken W. Smith

The distribution of close-in exoplanets is shaped by the interplay between atmospheric and dynamical processes. The Neptunian Desert, Ridge, and Savanna illustrate the sensitivity of these worlds to such processes, making them ideal to…

ArchNEMESIS is an open-source Python package developed for the analysis of remote sensing spectroscopic observations of planetary atmospheres. It is based on the widely used NEMESIS radiative transfer and retrieval tool, which has been…

Instrumentation and Methods for Astrophysics · Physics 2025-07-29 Juan Alday , Joseph Penn , Patrick G. J. Irwin , Jonathon P. Mason , Jingxuan Yang

High-resolution cross-correlation spectroscopy (HRCCS) has emerged as a powerful technique for detecting and characterizing exoplanet atmospheres from the ground. While it has been highly successful for ultra-hot Jupiters and hot Jupiters,…

Earth and Planetary Astrophysics · Physics 2026-02-27 Spandan Dash , Dwaipayan Dubey , Liton Majumdar

The long-term dynamical evolution is a crucial point in recent planetary research. Although the amount of observational data is continuously growing and the precision allows us to obtain accurate planetary orbits, the canonical stability…

Earth and Planetary Astrophysics · Physics 2022-11-30 Tamás Kovács , Máté Pszota , Emese Kővári , Emese Forgács-Dajka , Zsolt Sándor
‹ Prev 1 3 4 5 6 7 10 Next ›