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High-accuracy Doppler shift measurements and high-precision spectroscopy are basic suggestions within the look for exo-planets.Further super fascinating purposes contain the research of QSO absorption strains to figure out the variety of actual constants and the research of the isotopic ratios of absorption strains either in stars and in QSOs, and the choice of stellar oscillations via radial pace measurements. because the use of high-precision/resolution spectroscopy is heavily attached to the power to gather a lot of photons, the clinical domain names utilizing this method gain significantly from using 8-meter classification telescopes and should absolutely make the most the large achieve supplied through destiny tremendous huge Telescopes (ELTs). IR high-resolution spectroscopy may still quickly process a similar accuracy regime completed within the optical range.This quantity comprehensively covers the astrophysical and technical features of high-precision spectroscopy with an outlook to destiny advancements, and represents an invaluable reference paintings for researchers in these fields.
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Chen, M. Asplund, M. Pettini, A&A 415, 993 (2004) 4. V. V. Smith, D. L. Lambert, P. E. M. Correia: science is a serious business. F. Nieva1,2 and N. Przybilla1 1 2 Dr. Remeis Sternwarte Bamberg, Sternwartstr. de Summary. We present a state-of-the-art analysis technique able to reproduce the H, He and C spectra of OB-type stars simultaneously in the visual and the nearIR. Our spectrum synthesis relies on a hybrid non-LTE approach involving robust model atoms based on precise atomic data. Highly accurate atmospheric parameters free of systematic error are derived for a sample of randomly selected apparently slow-rotating stars in the solar vicinity.
Torres, S. Jha, D. Sasselov: Nature 121, 507 (2003) F. Bouchy, F. C. : A&A 421, L13 (2004) F. Bouchy, S. Udry, M. Mayor et al: A&A 444, L15 (2005) F. Pont, F. Bouchy, D. : A&A, 426, L15 (2004) F. Pont, F. Bouchy, C. : A&A, 438, 1123 (2005) F. Pont, M. Gillon, C. : A&A, submitted (2006) P. McCullogh, J. Stys, J. : ApJ 648, 1228 (2006) F. O’Donovan, D. Charbonneau, G. A. W. Noyes, G. : ApJ, in press (2006) A. Collier Cameron, F. Bouchy, G. : MNRAS, submitted (2006) G. Gonzalez: A&A 334, 221 (1998) A.
Przybilla, 2005, A&A, 443, 293 9. N. Przybilla, & K. Butler, 2004, ApJ, 609, 1181 High Resolution Spectroscopy of HgMn stars: A Time of Surprises S. R. Cowley2 , F. Gonz´ alez3 , F. it The origin of the abundance anomalies observed in late B-type stars with HgMn peculiarity is still poorly understood. Observationally, these stars are characterized by low rotational velocities and weak or non-detectable magnetic fields. The most distinctive features of their atmospheres are an extreme overabundance of Hg (up to 6 dex) and/or Mn (up to 3 dex) and a deficiency of He.