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Figure 1: The distribution of absolute blue magnitudes within the parent sample of 863 galaxies, as a function of distance in Mpc. The solid line corresponds to the apparent magnitude limit of B= 15.5 mag used in selecting the galaxies. Black/filled symbols denote the observed subsample, and red/open symbols the remaining unobserved galaxies. |
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Figure 2:
a) The luminosity function for the entire parent sample, types S0a - Im, plotted as points with error bars; the solid line shows the luminosity function from the SDSS blue
sequence. b) Luminosity functions including all galaxy types: SDSS
(solid line); this study with all Virgo galaxies included (dashed line); and this study with
galaxies excluded out to 10![]() |
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Figure 3: The log of the SFR to B-band luminosity ratio, plotted against the log of the B-band luminosity, for the observed galaxies. Circled points denote early types, T= 0-2; stars are intermediate types, T= 3-7; and filled circles are late types, T = 8-10. |
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Figure 4: The distribution of absolute magnitudes amongst each galaxy T-type for both the parent a) and the observed b) samples. |
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Figure 5:
The H![]() ![]() ![]() |
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Figure 6: SFR density as a function of absolute blue magnitude found using the points in the B-band luminosity function shown in Fig. 2 ( top); and using the SDSS B-band luminosity function ( bottom). The cumulative fraction of the SFR density is shown by the dot-dashed line in each plot; the scale for this fraction is marked along the right-hand axis. |
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Figure 7: SFR density as a function of galaxy morphological type, with galaxy numbers drawn from our B-band luminosity function. |
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Figure A.1: Morphological classifications in the CMD for galaxies. Left: NFGS sample. Right: a subset of the JPG sample. The dashed line in both plots represents an optimal divider between the red and blue sequences determined from a larger SDSS sample. |
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Figure A.2:
Morphological classifications in the CMD for galaxies. As per
Fig. A.1 ( right) except using g-r Petrosian
colours instead of u-r model colours. The dashed line represents
an optimal divider determined by eye from a larger SDSS sample:
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