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The region around the Herbig Ae/Be star LKH-alpha198 was imaged at 10 micrometer with the CAMIRAS camera at the Canada-France-Hawaii Telescope and the Nordic Optical Telescope. We discovered a deeply embedded companion 6 sec north of LKH-alpha198, which may be responsible for most of the far-infrared emission in the region and for driving the

We demonstrate that near-infrared CVF spectrometry can be used to determine accurately the spectral type and luminosity class of K- and M-type stars. As an example, we show that the spectral type and luminosity class of the star HR 8881 given in the fourth edition of the Bright Star Catalogue are in error. HR 8881 is an M giant, probably in the

We present in this work the results of a five-month monitoring campaign of the active galactic nucleus in NGC 3227. Both the Balmer H-beta and H-alpha emission lines, as well as the optical continuum have been analyzed. A deblending procedure has been applied which allows for the separation of the contributions to the line emssion from the narrow

Lines with no linear polarization induced by Zeeman effect are unaffected by instrumental polarization. We compile 86 such electric dipole lines with differing temperature and magnetic field sensitivities. In addition, we list 420 spectral lines which produce negligible linear polarization. In most cases, this second set can also be regarded as