ISOPHOT, the imaging spectro-photo-polarimeter on board ISO, supported performance of aperture and mapping photometry, low-resolution spectroscopy and polarimetry, both in staring and chopped mode. In addition, the 170 μm ISOPHOT Serendipity Survey was performed while slewing from one target to the next. Its calibration had to be connected to the

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From the emission line map in Hα over the full face of the spiral galaxy NGC 3359, we analyze the internal velocity structure of the H II region population. The emission line profiles show central peaks, with turbulent velocity widths of

Primitive bodies (comets, Centaurs, trans-Neptunian objects, etc.) are the best-preserved remnants of the Solar Nebula. Their composition and structure harbor clues to the origin of solar and exosolar planets and the evolution of protoplanetary disks. The capabilities of the Gran Telescopio Canarias (GTC) and its instrumentation provide us a unique

We report here the first results of an extensive optical/near-infrared imaging and spectroscopic study of massive stellar clusters in Wolf-Rayet (WR) galaxies using observations obtained from KPNO (USA), OAN (Mexico), the HST and the 2MASS data archive. We have collected spectra, B-imagery and 2MASS JHK imagery of approximately 60 prominent stellar

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