Balloon-borne water vapour measurements during January and February 2004, which were obtained as part of the LAUTLOS campaign at Sodankylä, Finland, 67 N, were used to analyse the water vapour distribution in the wintertime Arctic lowermost stratosphere. A 2.5 km thick layer (or 30 K in the potential temperature scale) above the tropopause is characterized by a significant water vapour variabil...

We present radial and rotation (vsini) velocity measurements, from UVES+VLT high resolution spectra of 61 stars in the blue horizontal branches (HB) of the Galactic globular clusters NGC 1904 (M79), NGC 2808, NGC 6093 (M80), and NGC 7078 (M15). The data reduction and the velocity determination, based on cross-correlation techniques, are discussed in detail. Most of this database has been used b...

Interorganizational alliances are widely recognized as critical to product innovation, particularly in high technology markets. Many new product development (NPD) alliances tend to be asymmetric, that is, they are formed between a larger firm and a smaller firm. These asymmetric alliances typically result in changes in the shareholder values of the partner firms. Are the changes in shareholder ...

This paper is the first of a series dedicated to the X-ray properties of the young open cluster NGC 6231. Our data set relies on an XMM-Newton campaign of a nominal duration of 180 ks and reveals that NGC 6231 is very rich in the X-ray domain too. Indeed, 610 X-ray sources are detected in the present field of view, centered on the cluster core. The limiting sensitivity of our survey is approxim...

It is known that the dependence of the emission-line luminosity of a typical cloud in the AGN broad-line regions upon the incident flux of ionizing continuum can be nonlinear. We study how this nonlinearity should be taken into account in estimating the size of the BLR by means of the “reverberation” methods. We show that the BLR size estimates obtained by cross-correlation of emission-line and...

We search for a direct signature of discrete “clouds” in the broad line region (BLR) of the Seyfert galaxy NGC 4151. For this purpose we apply cross correlation (CC) analysis to a high resolution KECK spectrum of the galaxy. No such signature is found in the data. In order for cloud models to be compatible with this result, there must be at least ∼ 3 × 10 emitting clouds in the BLR, where the l...

Interorganizational alliances are widely recognized as critical to product innovation, particularly in high technology markets. Many new product development (NPD) alliances tend to be asymmetric, that is, they are formed between a larger firm and a smaller firm. These asymmetric alliances typically result in changes in the shareholder values of the partner firms. Are the changes in shareholder ...