CaII K interstellar observations towards early disc and halostars - Paper II; distances to IVCs and HVCs

  title={CaII K interstellar observations towards early disc and halostars - Paper II; distances to IVCs and HVCs},
  author={J.V.Smoker and B. B. Lynn and W. R. J. Rolleston and H. R. M. Kay and Esteban Bajaja and W. G. L. Poppel and Francis P. Keenan and P. M. W. Kalberla and C. J. Mooney and Philip L. Dufton and Robert S. I. Ryans},
  journal={Monthly Notices of the Royal Astronomical Society},
We compare existing high spectral resolution (R=40,000) CaII K observations towards 88 mainly B-type stars, and new observations at R=10,000 towards 3 stars, with 21-cm HI emission-line profiles, in order to search for optical absorption towards known intermediate and high velocity cloud complexes. Given certain assumptions, limits to the gas phase abundance of CaII are estimated for the cloud components. We use the data to derive the following distances from the Galactic plane (z); 1… 

Observations towards early-type stars in the ESO-POP Survey – II. Searches for intermediate- and high-velocity clouds

We present Ca II K and Ti II optical spectra of early-type stars taken mainly from the ultraviolet and visual echelle spectrograph (UVES) Paranal Observatory Project, plus H I 21-cm spectra, from the

Imaging the transition between pre-planetary and planetary nebulae: integral field spectroscopy of hot post-AGB stars with NIFS

We present 2 to 2.4 micron integral field spectroscopy of a sample of hot post-AGB stars with early-B spectral types, using the NIFS instrument on Gemini North. These stars are just beginning to

High-resolution spectroscopy of the high-velocity hot post-AGB star IRAS 18379–1707 (LS 5112)

The high-resolution ($R\sim48\,000$) optical spectrum of the B-type supergiant LS 5112, identified as the optical counterpart of the post-AGB candidate IRAS 18379-1707, is analysed. We report the

Hot horizontal branch stars in NGC 288 – effects of diffusion and stratification on their atmospheric parameters

Context. NGC 288 is a globular cluster with a well-developed blue horizontal branch (HB) covering the u-jump that indicates the onset of diffusion. It is therefore well suited to study the effects of