The accreting millisecond X-ray pulsar SAX J1808.4-3658 recently exhibited another outburst in September and October 2008 (ATel #1728). During this outburst, on 2008 Oct 2, we obtained a ~40 ks observation with Suzaku. The XIS detectors were operated in 1/4 window mode, with 1 sec burst, leading to a good time exposure of 21 ks for the XIS 0, 1 and

Multicolour broad-band transit observations offer the opportunity to characterize the atmosphere of an extrasolar planet with small- to medium-sized telescopes. One of the most favourable targets is the hot Jupiter HAT-P-32 b. We combined 21 new transit observations of this planet with 36 previously published light curves for a homogeneous analysis

We present Spitzer/IRAC and MIPS 24 μm observations for 28 brown dwarfs in the Upper Scorpius (UppSco) region. We find a disk fraction of 10.7%+8.7% -3.3%. One object shows a small excess at 24 μm but none at shorter wavelengths, and may be a candidate transition disk. Three objects show emission in the 10 μm silicate feature and we present

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Since the discovery of the first brown dwarfs, Teide 1 and Gl 229B in 1995, several hundreds of substellar objects have been discovered. During these fifteen years, the field of brown dwarfs has experimented a great development, only comparable to that carried out in the strongly related field of extrasolar planets. Substellar objects, on the

This contribution gathers the contents of the white paper submitted by the UV community to the Call issued by the European Space Agency in March 2013, for the definition of the L2 and L3 missions in the ESA science program. We outlined the key science that a large UV facility would make possible and the instrumentation to be implemented. The growth