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Date and Time of the Query: 2019-06-18 T02:48:14 PDT
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For refcode 2003A&A...406..867B:
Retrieve 147 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2003A&A...406..867B Mid-IR emission of galaxies in the Virgo cluster III. The data Boselli, A.; Sauvage, M.; Lequeux, J.; Donati, A.; Gavazzi, G. Abstract. We present ISOCAM imaging data at 6.75 and 15 mu m for 145 galaxies in the Virgo cluster and in the Coma/A1367 supercluster. Of these, 99 form a complete, optically-selected, volume-limited sample including galaxies in the core and in the periphery of the Virgo cluster, suitable for statistical analysis. 34 of the Virgo galaxies were resolved by ISOCAM: for these objects we present mid-IR images, radial light and colour profiles, as well as effective and isophotal radii, surface brightness and light concentration indices. The mid-IR colours of the target galaxies show a weak trend with the H band luminosity, with values of F(6.75 mu m)/F(15 mu m) ge 1 found generally in massive objects (L_H_>=10^10^ L_Hsun_), and F(6.75 mu m)/F(15 mu m) le 1 in low-mass (L_H_ <= 10^10^ L_Hsun_) dwarf galaxies. All early-type galaxies (type le S0a) have F(6.75 mu m)/F(15 mu m) ge 1, as expected when the mid-IR emission is dominated by the photosphere of the cold stellar population. The mid-IR, near-IR and visible light concentration indices of bright galaxies are tightly correlated with one another, indicating that the spatial distribution of the mid-IR emitting sources is, to the first order, similar to that of the stars. Figures 1 and 2, and Tables 1, 2, 4, 5 are only available in electronic form at http://www.edpsciences.org Keywords: galaxies: general, galaxies: spiral, galaxies: ISM, stars: formation
Retrieve 147 NED objects in this reference.
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