Observing Stars & Extrasolar Planetary Systems with ALMA
نویسندگان
چکیده
We address in this memo the ability of ALMA to observe stars and extrasolar planetary systems (in various stages of formation). The observation of extrasolar planetary systems is thought to be one of the most important science drivers for ALMA. As such, we should have some idea of what the capabilities might be in this regard. In addition, ALMA will be the first instrument which will be able to detect, monitor, and even image (for the largest) a very large number of “regular” stars at wavelengths longer than the mid-IR. Again, we should have some idea of what our capabilities might be in this area. This was originally written up for a poster contributed to Symposium 202 at the IAU GA in 2000 in Manchester, and a shortened version was submitted to the proceedings of that symposium (Penny et al., unpublished to date).
منابع مشابه
Observing Extrasolar Planetary Systems with ALMA
We address in this white paper the ability of ALMA to observe extrasolar planetary systems (in various stages of formation). The observation of extrasolar planetary systems is thought to be one of the most important science drivers for ALMA. As such, we should have some idea of what the capabilities might be in this regard.
متن کاملSpectroscopic Studies of Transiting Planetary Systems
As of December 2007, radial velocity measurements and planetary transit surveys for nearby stars have already identified more than 250 planets around other stars. These “extrasolar planets” opened a new field of astronomy in the past decade. The discovery of many extrasolar planets have revealed the existence of exotic planets such as “hot Jupiters” and “eccentric planets,” showing the diversit...
متن کاملExoplanet Detection Prospects with Lmircam
Direct detection of extrasolar planets and their surrounding environments provides an excellent opportunity to study the dynamical evolution of extrasolar planetary systems. With increased angular resolution and sensitivity, unprecedented details of these systems’ architectures will be revealed. Direct imaging of low-mass giant planets in wide-separation orbits complements existing indirect det...
متن کاملOn the Nature of Stars with Planets
We consider the metallicities and kinematics of nearby stars known to have planetary-mass companions in the general context of the overall properties of the local Galactic Disk. We have used Strömgren photometry to determine abundances for both the extrasolar-planet host stars and for a volume-limited sample of 486 F, G and K stars selected from the Hipparcos catalogue. The latter data show tha...
متن کاملLong - Period Objects in the Extrasolar Planetary Systems 47 Uma and 14 Her 1
The possible existence of additional long-period planetary-mass objects in the extrasolar planetary systems 47 UMa and 14 Her is investigated. We combine all available radial-velocity data on these stars, spanning up to 18 years. For the 47 UMa system, we show that while a second planet improves the fit to all available data, there is still substantial ambiguity as to the orbital parameters of ...
متن کامل