... Future seminars . P a s t seminars . Seminar council . Extrarasolar planetary systems: regularities are found out " . Leonid Ksanfomaliti (IKI) . ... The discovery in 1995 of the first extrasolar giant planet (51 Peg b) initiated the physics of extrasolar planetary systems. ... Metallicity has become an indicator of the possible presence of planetary systems and, probably, even determines the type of planets. ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

Testing the Automatic Detection of Directly Imaged Exoplanets Using Wavelet Analysis Chris Merchantz Introduction · Challenges associated with direct images of planets Distinguish planets in the following way: (1) a minimum flux threshold is from speckles maxima, anddefined for the features that are identified as local (2) the "Exoplanet Recognition Using a Wavelet Analysis Technique" Fig. ... This spectrum is used as template spectrum to recognize planets in a deep image. ...

Raquel Salmeron The mechanism(s) responsible for generating the angular momentum transport required for star/planet formation remain poorly understood. ... In recent times it has been realised that the answer may lie in the complex interaction of gas and magnetic fields present in the flattened disc of material that surrounds the star in formation (e.g., Balbus Hawley 1998) . ... COALA : Universe Galaxy AGN Star Planet ...