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We hypothesize that hot Jupiters with inflated sizes represent a separate planet formation channel, the merging of two low-mass stars. We show that the abundance and properties of W UMa stars and low mass detached binaries are consistent with their being possible progenitors. The degree of inflation of the transiting hot Jupiters correlates with

Tenerife is not Jakarta. Neither is 2009 the year 1965, nor the Museo de la Ciencia y el Cosmos (Museum of Science and the Cosmos) the hotel "Indonesia", meeting point of reporters from around the world. Nor am I the journalist Jill Bryant (Sigourney Weaver) in the Australian Peter Weir film. But 2009, a year of international commitment to

The X-ray transient XTE J1719-291 was discovered with Rossi X-ray Timing Explorer/Proportional Counter Array (RXTE/PCA) during its outburst in 2008 March, which lasted at least 46 d. Its 2-10 keV peak luminosity is 7 × 1035 erg s-1 assuming a distance of 8 kpc, which classifies the system as a very faint X-ray transient. The outburst was monitored

Using the Arcminute Microkelvin Imager (AMI) at 16GHz and the Very Small Array (VSA) at 33GHz to make follow-up observations of sources in the New Extragalactic WMAP Point Source catalogue, we have investigated the flux density variability in a complete sample of 97 sources over time-scales of a few months to ~1.5yr. (1 data file).

Observations of the WMAP sources were made using the AMI-SA during 14 separate observing runs between 2007 April and 2008 September. Observations of the WMAP sources using VSA were performed during 10 separate observing runs between 2007 February and 2008 July. (1 data file).