Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 124, Issue 917, Pages 700-713Publisher
IOP PUBLISHING LTD
DOI: 10.1086/666901
Keywords
-
Categories
Funding
- National Aeronautics and Space Administration
- Jet Propulsion Laboratory (JPL), California Institute of Technology
- JPL Research and Technology Development program
Ask authors/readers for more resources
Near-IR observations are important for the detection and characterization of exoplanets using the transit technique, either in surveys of large numbers of stars or for follow-up spectroscopic observations of individual planets. In a controlled laboratory experiment, we imaged similar to 10(4) critically sampled spots onto an Teledyne Hawaii-2RG (H2RG) detector to emulate an idealized star field. We obtained time-series photometry of up to similar or equal to 24 hr duration for ensembles of similar to 10(3) pseudostars. After rejecting correlated temporal noise caused by various disturbances, we measured a photometric performance of less than 50 ppm hr(-1/2) limited only by the incident photon rate. After several hours we achieved a photon-noise-limited precision level of 10-20 ppm after averaging many independent measurements. We conclude that IR detectors such as the H2RG can make the precision measurements needed to detect the transits of terrestrial planets or to detect faint atomic or molecular spectral features in the atmospheres of transiting extrasolar planets.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available