IR-TF Relation In The Zone Of Avoidance With 2MASS

Using the Tully-Fisher relation, one can map the peculiar velocity field and estimate the mass in regions such as the Great Attractor. 2MASS is surveying the full sky in J, H and K bands and has the great advantage that it allows us to detect galaxies more uniformly to lower Galactic latitude than optical surveys. This study shows the feasibility of using 2MASS and the TF relation to probe large scale structure. We found that (i) we can use axis ratio $b/a$ up to 0.5; (ii) intrinsic extinction is present (up to 0.5mag at J, 0.1 mag at K); (iii) the zero-point of the TF relation is independent of the 2MASS magnitude measurement and is consistent with the HST Key-Project value; (iv) the 2MASS K-band 20th mag/arcsec$^2$ isophotal aperture magnitude produces the best TF relation; and (v) there is no type dependence of the residualsComment: 8 pages, Latex using newpasp.sty. Matches version to appear in Mapping the Hidden Universe: The Universe Behind the Milky Way - The Universe in HI, ASP Conference Series 2000, eds R.C.Kraan-Korteweg, P.A. Henning and H. Andernach (matched to published version; abstract bug in v2 fixed

Henning Wrage, Assistant Professor of German Studies

In this issue of Next Page, Assistant Professor of German Studies, Henning Wrage reveals the book that caused him to become a vegetarian—for a short time at least, and the unusual reading matter that literally surrounded him as a child

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Crop and Soil Responses to Phosphorus and Potassium

Producers in Southeast Iowa are interested in managing available soil phosphorus (P) and potassium (K) to achieve optimum grain yields. This study was established in 1989 to examine P and K management in a corn-soybean crop rotation. In 2001 and 2006, nitrogen (N) treatments were added to supply this nutrient to corn at low and moderate rates to determine if corn yields were affected by P and K levels in the soil