Context. This is the second u-band extension of the WIde-field Nearby Galaxy-cluster Survey (WINGS) whereby 39 clusters were imaged with the ESO-VLT survey telescope. This follows the first part of the survey which was performed with several telescopes of the northern hemisphere in the U Cousin-Bessel filter band covering 17 clusters. Aims: The u-band data, in combination with those already collected by the WINGS survey, permit a detailed multi-wavelength investigation of the properties of the member galaxies from the cluster center out to the periphery. Methods: We used SExtractor to derive the main properties of the galaxies in the observed fields and measure the u - V colors on circular apertures of increasing radius. The photometric accuracy of the magnitudes was calibrated with the standard stars and was tested by means of comparisons with the u-band data of the Sloan Digital Sky Survey (SDSS). Results: We present the catalogs of the photometric analysis performed by SExtractor. We also provide a brief analysis of the u - V versus V color-magnitude diagram of our clusters, the plots of the color as a function of the cluster-centric distance (for cluster members only), the mass-color relation and the correlation of the current star formation rate (SFR) with the absolute V and u magnitudes for the galaxies in the observed fields. Full Table A.1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/637/A54Based on observations collected at the European Southern Observatory under ESO GTO programs IDs (089.B-0683-098.B-0657).
The second u-band extension of the WINGS cluster survey
GRADO, ANIELLO;
2020
Abstract
Context. This is the second u-band extension of the WIde-field Nearby Galaxy-cluster Survey (WINGS) whereby 39 clusters were imaged with the ESO-VLT survey telescope. This follows the first part of the survey which was performed with several telescopes of the northern hemisphere in the U Cousin-Bessel filter band covering 17 clusters. Aims: The u-band data, in combination with those already collected by the WINGS survey, permit a detailed multi-wavelength investigation of the properties of the member galaxies from the cluster center out to the periphery. Methods: We used SExtractor to derive the main properties of the galaxies in the observed fields and measure the u - V colors on circular apertures of increasing radius. The photometric accuracy of the magnitudes was calibrated with the standard stars and was tested by means of comparisons with the u-band data of the Sloan Digital Sky Survey (SDSS). Results: We present the catalogs of the photometric analysis performed by SExtractor. We also provide a brief analysis of the u - V versus V color-magnitude diagram of our clusters, the plots of the color as a function of the cluster-centric distance (for cluster members only), the mass-color relation and the correlation of the current star formation rate (SFR) with the absolute V and u magnitudes for the galaxies in the observed fields. Full Table A.1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/637/A54Based on observations collected at the European Southern Observatory under ESO GTO programs IDs (089.B-0683-098.B-0657).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
