Context. A number of recent papers have claimed the discovery of an X-shape structure in the bulge of our Galaxy in the population of the red clumps. Aims: We endeavor to analyze the stellar density of bulge stars in the same regions using a different stellar population that is characteristic of the young bulge (≲ 5 Gyr). Particularly, we use F0-F5

We present accurate measurements of the central wavelengths of 4947 atomic absorption lines in the solar optical spectrum. The wavelengths, precise to a level ~ 50-150 m s(-1) , are given for both flux and disc-centre spectra, as measured in relatively recent FTS solar atlases. This catalogue modernizes existing sources based on photographic

We recently discovered an unresolved radio source coincident with the ultraluminous X-ray source (ULX) IC 342 X-1. The radio emission and hard X-ray spectrum of the source suggest that it is a compact object accreting in the X-ray hard/radio loud state. This enables use of the fundamental plane relation, found valid for stellar to supermassive

We present results from multi-wavelength observations of the Wolf-Rayet (WR) blue compact dwarf galaxy He 2-10. These observations include Hα and optical red continuum imaging, high resolution Hα spectroscopy, high resolution radio-continuum mapping at 4.80 and 8.64 GHz and ROSAT X-ray observations. The deep Hα images reveal that the galaxy is

HII region catalogues for 57 face on spiral galaxies within v

MOTIVATION FOR THIS MONITORING To better understand the origin, nature and evolution of the Kuiper Belt Objects (hereafter KBOs) it is needed a characterization of the physical properties of these primitive bodies. We expect that these remote and pristine bodies are rich in ice and other volatiles. They also probably played an important role in the