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The HI mass function in Ursa Major

Marc Verheijen·Neil Trentham·Brent Tully·Martin Zwaan
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Abstract

A deep blind HI survey of the nearby spiral rich Ursa Major cluster has been performed with the VLA in parallel with a wide-field R-band imaging campaign of most VLA fields with the CFHT. The goal is to measure the slope of the HI mass function down to HI masses of 10^7 Msun as well as the slope of the faint-end of the luminosity function down to M(R)=-10. The VLA survey sampled 16% of the Ursa Major cluster volume. Both the HIMF and the LF in Ursa Major are nearly flat at their faint-ends. No free- floating HI clouds were detected.

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Marc Verheijen, Neil Trentham, Brent Tully, Martin Zwaan. 2000-06-08. The HI mass function in Ursa Major. https://arxiv.org/abs/astro-ph/0006122

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