Direct measurement of the size of 2003 UB313 from the Hubble Space Telescope

We have used the Hubble Space Telescope to directly measure the angular size of the large Kuiper belt object 2003 UB313. By carefully calibrating the point spread function of a nearby field star, we measure the size of 2003 UB313 to be 34.3$\pm$1.4 milliarcseconds, corresponding to a diameter of 2400$\pm$100 km or a size $\sim5$% larger than Pluto. The V band geometric albedo of 2003 UB313 is $86\pm7$%. The extremely high albedo is consistent with the frosty methane spectrum, the lack of red coloring, and the lack of observed photometric variation on the surface of 2003 UB313. Methane photolysis should quickly darken the surface of 2003 UB313, but continuous evaporation and redeposition of surface ices appears capable of maintaining the extreme alebdo of this body

Consortial Cataloging Guidelines for Electronic Resources: I-Share Survey and Recommendations

In 2009, the Consortium of Academic and Research Libraries in Illinois (CARLI) charged a task force to update and revise recommendations that address cataloging practice and catalog access to electronic resources for libraries participating in the I-Share union catalog. This article presents the results of a survey and recommendations developed by the 2009 Task Force that cover all types of e-resources. Issues covered include: single or separate records for electronic and print versions of a title; the use of aggregator-neutral and provider neutral records,; the construction and placement of the Uniform Resource Locator (URL) and notes; and the use of vendor records

Evaluation of Euler Fluxes for Hypersonic Heating Computations

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/83575/1/AIAA-41605-439.pd