We compute UV to radio continuum spectral energy distributions of 51 nearby galaxies recently observed with SPIRE onboard Herschel and present infrared colours (in the 25-500 μm spectral range). SPIRE data of normal galaxies are well reproduced with a modified black body (β=2) of temperature T≃q 20 K. In ellipticals hosting a radio galaxy, the far

We explore the possibility that the old and intermediate-age, populations within the Carina dwarf spheroidal galaxy exhibit distinct kinematic and chemical signatures. Preliminary results from medium-resolution data indeed indicate that such differences do exist. We report on the magnitude of these differences and their uncertainties. This research

Using a sample of 654 objects selected from the Sloan Digital Sky Survey (SEGUE) plates, we evaluated and adjusted the SDSS target algorithm for Blue Horizontal Branch (BHB) stars. We then tested the spectroscopically determined surface gravity for these stars against the Lenz et al. 1998 photometric ``v-parameter" = 0.283(u-g) - 0.354(g-r) + 0.455

Useful information from the inner layers of stellar pulsators may be derived from the study of their oscillations. In this paper we analyse three diagnostic tools suggested in the literature built from the oscillation frequencies computed for a set of main sequence models with masses between 1.0 M&sun; and 1.6 M&sun;, to check what information they

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The GOLF instrument provides a stable and continuous measurement of the intensity of spatially integrated sunlight in one wing of the sodium D lines. Because the detected radiation results from atomic scattering, the GOLF signal can be traced to an atomic reference wavelength. The planned operations were to involve a form of relative photometry