Is macroturbulence in OB Sgs related to pulsations?

As part of a long term observational project, we are investigating the macroturbulent broadening in O and B supergiants (Sgs) and its possible connection with spectroscopic variability phenomena and stellar oscillations. We present the first results of our project, namely firm observational evidence for a strong correlation between the extra broadening and photospheric line-profile variations in a sample of 13 Sgs with spectral types ranging from O9.5 to B8.Comment: 2 pages, 1 figure. Poster contribution to the proceedings of the IAU272 "Active OB stars: structure, evolution, mass loss and critical limits

The spectroscopic observations of CoRoT asteroseismic targets with HARPS

CoRoT photometric measurements of asteroseismic targets need complementary ground-based spectroscopic observations. We are using the planet-hunter HARPS spectrograph attached to the 3.6m-ESO telescope in the framework of two consecutive Large Programmes. We discuss its use to study line-profile variations and we report on a specific result obtained for the Delta Sct star HD 170699.Comment: Proceedings of the 20th Stellar Pulsation Conference Series: "Impact of new instrumentation & new insights in stellar pulsations", 5-9 September 2011, Granada, Spai

Report on the first run of the ESO LP 185.D-0056 ([email protected])

The ESO Large Programme 185.D-0056 started with the HARPS instrument at the 3.6m ESO telescope in June and July 2010. The log of the these observations, the problems encountered, some tips, the situation of the publications, and a look to the future are given

Report on the second run of the ESO Large Programme

The ground–based spectro- scopic observations complementing the COROT ones have con- tinued in June and July 2007. The log of the observations, a few preliminary results, tips for the next observers and a look to the future are given

Report on the third run of the ESO Large Programme

The ground–based spectroscopic observations complementing the COROT ones have continued in December 2007 and January 2008. The log of the observations, a few preliminary results and a look to the future are given

Are the Stellar Winds in IC1613 stronger than expected?

In this poster we present the results of our analyses of three early massive stars in IC 1613, whose spectra have been observed with VIMOS and analyzed with CMFGEN and FASTWIND. One of the targets resulted a possible LBV and the other two are Of stars with unexpectedly strong winds. The Of stars seem to be strongly contaminated by CNO products. Our preliminary results may represent a challenge for the theory of stellar atmospheres, but they still have to be confirmed by the analysis of more objects and a more complete coverage of the parameter space.Comment: 2 pages. Poster contribution to the proceedings of the IAU272 "Active OB Stars: structure, evolution, mass loss and critical limits