Observatory at risk

Risk Management at the Latin American Observatory

Hydroperoxides at Jungfraujoch Observatory

Processes controlling the concentration of hydroperoxides at Jungfraujoch Observatory, Switzerland S. J. Walker, M. J. Evans, A. V. Jackson, M. Steinbacher, C. Zellweger, and J. B. McQuaid Institute for Atmospheric Science, School of the Earth and Environment, University of Leeds, Leeds, United Kingdom Swiss Federal Institute for Materials Science and Technology (Empa), Laboratory for Air Pollu...

Two Exoplanets Discovered at Keck Observatory

We present two exoplanets detected at Keck Observatory. HD 179079 is a G5 subgiant that hosts a hot Neptune planet with M sin i = 27.5 M⊕ in a 14.48 d, low-eccentricity orbit. The stellar reflex velocity induced by this planet has a semiamplitude of K = 6.6 m s. HD 73534 is a G5 subgiant with a Jupiter-like planet of M sin i = 1.1 MJup and K = 16 m s −1 in a nearly circular 4.85 yr orbit. Both ...

Polarisation Observations at Jodrell Bank Observatory

Some of the issues concerning polarisation calibration in the context of pulsar observations are outlined along with the existing calibration system in Jodrell Bank Observatory. The principle behind the back-calibration of the Jodrell Bank database of 16 years is presented along with plans for exploiting the database in the future.

The SIM Lite Astrometric Observatory: Engineering risk reduction activity

The SIM Lite Astrometric Observatory is a mission concept for a space-borne instrument to perform micro-arcsecond narrow-angle astrometry to search 60 to 100 nearby stars for Earth-like planets, and to perform global astrometry for a broad astrophysics program. The main enabling technology development for the mission was completed during phases A & B. While the project is waiting for the result...