The HI Mass Function from HIPASS

V. Kilborn ,
R. L. Webster ,
L. Staveley-Smith ,
, PASA, 16 (1), in press.

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Discussion and Conclusions

So far, we have taken a conservative cut-off to derive the HIMF. This has excluded the low mass galaxies which we are particularly interested in, and in the future we will work on determining the sensitivity limits of the survey more fully so that all the available data can be included in the analysis. The preliminary results from HIPASS show an HIMF that does not indicate a steep rise at the faint end, which is a similar result to previous surveys. We derive a cosmological mass density of

$\Omega_g = 1.88 \times 10^{-4}h^{-1}$, which is also similar to past results. With better understanding of the survey sensitivity we will be able to push the limits of the low mass end of the HIMF.


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