Qatar Exoplanet Survey: Qatar-6b—A Grazing Transiting Hot Jupiter

Transiting Exoplanet Survey Satellite

The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.7-day orbit around the Earth. During its 2-year mission, TESS will employ four wide-field optical charge-coupled device cameras to monitor at l...

A Metal - Rich Low - Density Transiting Hot Jupiter

We describe the discovery of HAT-P-4b, a low-density extrasolar planet transiting BD+36 2593, a V = 11.2mag slightly evolved metal-rich late F star. The planet’s orbital period is 3.056536 ± 0.000057d with a mid-transit epoch of 2, 454, 245.8154± 0.0003 (HJD). Based on high-precision photometric and spectroscopic data, and by using transit light curve modeling, spectrum analysis and evolutionar...

Qatar water challenges

Qatar has experienced rapid economic growth due to the discovery and production of fuel oil and natural gas (NG). The natural renewable water resources (rainfall and groundwater [GW]) are depleted; and are estimated as 71-m/per year per capita in 2005. This is far below the water poverty line of 1,000-m/yca. The GW withdrawal is excessive (compared to replenishment) and is used mainly for irrig...

Qatar Content Classification

HAT-P-5b: A JUPITER-LIKE HOT JUPITER TRANSITING A BRIGHT STAR

We report the discovery of a planet transiting a moderately bright (V = 12.00) G star, with an orbital period of 2.788491± 0.000025 days. From the transit light curve we determine that the radius of the planet is Rp = 1.257± 0.053RJup. HAT-P-5b has a mass of Mp = 1.06± 0.11MJup, similar to the average mass of previously-known transiting exoplanets, and a density of ρp = 0.66± 0.11 g cm. We find...