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Table 1:

Summary of the field positions, filter characteristics and exposure times for the narrow-band (on-band) images.
      [OIII]   H$\alpha $    
Field RA(J2000) Dec (J2000) $\lambda_{\rm c}$ FWHM Exposure $S_{\it FWHM}$   $\lambda_{\rm c}$ FWHM Exposure $S_{\it FWHM}$  
  (hh mm ss) ($^{\circ}$ ' '') ($\AA\ $) ($\AA\ $) (s) (arcsec)   ($\AA\ $) ($\AA\ $) (s) (arcsec)  
Core 12 27 48 +13 18 46 5023 80 24 000 1.20   - - - -  
FCJ 12 30 39 +12 38 10 5027 44 18 000 1.40   - - - -  
LPC 12 25 32 +12 14 39 5027 60 27 000 1.40   - - - -  
SUBC 12 25 47 +12 43 58 5021 74 3600 0.68   6607 101 8728 0.70  
LPRX 12 28 00 +09 30 00 5027 60 27 000 1.80   - - - -  
LPE 12 17 27 +13 41 30 5027 60 27 000 1.30   - - - -  
LPS 12 27 34 +10 43 42 5027 60 27 000 1.30   - - - -  
LSF 12 38 33 +12 08 41 5023 80 33 000 1.08   - - - -  
RCN1 12 26 13 +14 08 03 5023 80 24 000 1.20   - - - -  
SUB2 12 24 13 +14 09 01 5021 74 3600 1.00   6607 101 9000 1.10  
SUB3 12 24 32 +15 21 21 5021 74 3600 1.00   6607 101 9000 1.05  

The fields listed above the horizontal line are located within 80 arcmin of the Virgo cluster center; the data reduction is described in previous work (FCJ: Arnaboldi et al. 2002; SUBC: Arnaboldi et al. 2003; Core and LPC: Aguerri et al. 2005). The fields listed below the horizontal line are at distances between 80 and 215 arcmin of Virgo cluster center.

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