Figure 23 from The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the Survey

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The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the Survey

Authors: Laura Ferrarese, Patrick Côté, Jean-Charles Cuillandre, S. D. J. Gwyn, Eric W. Peng, Lauren A. MacArthur, Pierre-Alain Duc, A. Boselli, Simona Mei, Thomas Erben, Alan W. McConnachie, Patrick R. Durrell, J. Christopher Mihos, Andrés Jordán, Ariane Lançon, Thomas H. Puzia, Eric Emsellem, Michael L. Balogh, John P. Blakeslee, Ludovic van Waerbeke, Raphaël Gavazzi, Bernd Vollmer, J. J. Kavelaars, David Woods, Nicholas M. Ball, S. Boissier, Stéphane Courteau, E. Ferriere, G. Gavazzi, Hendrik Hildebrandt, P. Hudelot, M. Huertas-Company, Chengze Liu, Dean McLaughlin, Y. Mellier, Martha Milkeraitis, David Schade, Chantal Balkowski, Frédéric Bournaud, R. G. Carlberg, S. C. Chapman, Henk Hoekstra, Chien Peng, Marcin Sawicki, Luc Simard, James E. Taylor, R. Brent Tully, Wim van Driel, Christine D. Wilson, Todd Burdullis, Billy Mahoney, and Nadine Manset

Ferrarese et al. 2012 The Astrophysical Journal Supplement Series 200 4.

Provider: AAS Journals

Caption: Figure 23.

Diffuse light in the Virgo cluster. The two panels show a 17′ × 34′ region near the cluster center that includes VCC1030, VCC1043, and VCC881 (labeled in the lower panel). The upper panel shows the V-band image from the deep imaging of Mihos et al. (2005), which was taken using a single SITe 2048 × 4096 CCD, with a pixel scale of 1 farcs 4, on the 0.6 m Burrell Schmidt telescope, an instrument that is optimized for studying extended, low surface brightness features. The lower image is a g-band stack from the NGVS after combining the dithered and stepped exposures with Elixir-LSB (C. Cuillandre et al. 2012, in preparation). Bright stars have been masked in the NGVS image using a combination of the automask task in the THELI data reduction package (Erben et al. 2005, 2009) and customized software that masks CCD bleed trails (see Section 4.3). Most of the low surface brightness features visible in the upper image are also apparent in NGVS, which is shown here at full resolution (unbinned), with 0 farcs 187 pixels.

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