Sentences with phrase «on microlensing events»
The Optical Gravitational Lensing Experiment IV (OGLE - IV) has just entered operation and a new program at Wise Observatory in Tel Aviv will begin operation following up on microlensing events next year.
https://www.seeker.com/ Not exact matches
Based on a statistical analysis of more than 2,600 microlensing events, drawn from six years of observations on about 50 million stars, the OGLE team estimates that there is perhaps one Jupiter - mass rogue planet for every four stars in the galaxy.
Microlensing events are random occurrences and don't depend on star selection.
The observations, taken with the Near Infrared Camera 2 (NIRC2) on the Keck 2 telescope more than eight years after the microlensing event, provided a precise measurement of the foreground and background stars» relative motion.
As microlensing events are, by their nature, one - offs, astronomers needed another way to confirm the nature of OGLE -2007-BLG-349 and Hubble has been used to zoom in on the star system that triggered the 2007 brightening.
Because the microlensing event depends on one star moving across the sky relative to another, microlensing measurements can only be taken at that one time when the two stars align and can not be repeated.