Masses and Orbits of Extrasolar Planets: Preparation of Astrometric Observing Programs
نویسندگان
چکیده
منابع مشابه
Photometric Orbits of Extrasolar Planets
We define and analyze the photometric orbit (PhO) of an extrasolar planet observed in reflected light. In our definition, the PhO is a keplerian entity with six parameters: semimajor axis, eccentricity, mean anomaly at some particular time, argument of periastron, inclination angle, and effective radius, which is the square root of the geometric albedo times the planetary radius. Preliminarily,...
متن کاملQuantifying the Uncertainty in the Orbits of Extrasolar Planets
Precise radial velocity measurements have led to the discovery of 100 extrasolar planetary systems. We investigate the uncertainty in the orbital solutions that have been fitted to these observations. Understanding these uncertainties will becomemore and more important as the discovery space for extrasolar planets shifts to longer and longer periods.While detections of short-period planets can ...
متن کاملTidal Constraints on the Masses of Extrasolar Planets
Tidal theory predicts that the orbits of close extrasolar giant planets will circularize on timescales that can be comparable to the ages of those systems. Additionally, planets that are close enough and massive enough can spin up their central stars. Since the eccentricities of extrasolar planet orbits are determined by the radial velocity technique and since stellar rotation rates are observe...
متن کاملAstrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review
I present a review of astrometric techniques and instrumentation utilized to search for, detect, and characterize extra-solar planets. First, I briefly summarize the properties of the present-day sample of extrasolar planets, in connection with predictions from theoretical models of planet formation and evolution. Next, the generic approach to planet detection with astrometry is described, with...
متن کاملAstrometric Detection of Earthlike Planets
Michael Shao ([email protected], Jet Propulsion Laboratory), Geoff Marcy (UC Berkeley), Joseph H. Catanzarite (JPL), Stephen J. Edberg (JPL), Alain Léger (Institut d’Astrophysique Spatiale), Fabien Malbet (Laboratoire d'Astrophysique de l'Observatoire de Grenoble), Didier Queloz (Observatoire de Genève), Matthew W. Muterspaugh (UC Berkeley),Charles Beichman (NExScI), Debra A. Fischer (S...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2004
ISSN: 0074-1809
DOI: 10.1017/s0074180900192988