Sky with ocean joined : proceedings of the sesquicentennial symposia of the U.S. Naval Observatory, December 5 and 8, 1980 /

Mode of access: Internet.

Message of the President of the United States transmitting A report of the Secretary of the Navy, in compliance with a resolution of the Senate of December 6, 1854, calling for correspondence, &c., relative to the naval expedition to Japan.

Running title: Correspondence relative to the naval expedition to Japan.

Narrative of the expedition of an American squadron to the China Seas and Japan : performed in the years 1852, 1853, and 1854, under the command of Commodore M.C. Perry, United States Navy, by order of the government of the United States /

Includes indexes.

Statistical and chronological history of the United States navy, 1775-1907,

No more published?

Landing party manual, United States Navy.

Pamphlets in loose-leaf binder.

Ships of the United States Navy: christening, launching, and commissioning /

Cover title.

The dynamical state of galaxy groups and their luminosity content

We analyse the dependence of the luminosity function (LF) of galaxies in groups on group dynamical state. We use the Gaussianity of the velocity distribution of galaxy members as a measurement of the dynamical equilibrium of groups identified in the Sloan Digital Sky Survey Data Release 7 by Zandivarez & Martinez. We apply the Anderson-Darling goodness-of-fit test to distinguish between groups according to whether they have Gaussian or non-Gaussian velocity distributions, i.e. whether they are relaxed or not. For these two subsamples, we compute the (0.1)r-band LF as a function of group virial mass and group total luminosity. For massive groups, , we find statistically significant differences between the LF of the two subsamples: the LFs of groups that have Gaussian velocity distributions have a brighter characteristic absolute magnitude (similar to 0.3 mag) and a steeper faint-end slope (similar to 0.25). We detect a similar effect when comparing the LF of bright [M-0.1r(group) - 5log(h) < -23.5] Gaussian and non-Gaussian groups. Our results indicate that, for massive/luminous groups, the dynamical state of the system is directly related to the luminosity of its galaxy members.

THE SLOAN DIGITAL SKY SURVEY CO-ADD: A GALAXY PHOTOMETRIC REDSHIFT CATALOG

We present and describe a catalog of galaxy photometric redshifts (photo-z) for the Sloan Digital Sky Survey (SDSS) Co-add Data. We use the artificial neural network (ANN) technique to calculate the photo-z and the nearest neighbor error method to estimate photo-z errors for similar to 13 million objects classified as galaxies in the co-add with r < 24.5. The photo-z and photo-z error estimators are trained and validated on a sample of similar to 83,000 galaxies that have SDSS photometry and spectroscopic redshifts measured by the SDSS Data Release 7 (DR7), the Canadian Network for Observational Cosmology Field Galaxy Survey, the Deep Extragalactic Evolutionary Probe Data Release 3, the VIsible imaging Multi-Object Spectrograph-Very Large Telescope Deep Survey, and the WiggleZ Dark Energy Survey. For the best ANN methods we have tried, we find that 68% of the galaxies in the validation set have a photo-z error smaller than sigma(68) = 0.031. After presenting our results and quality tests, we provide a short guide for users accessing the public data.

The satellite almanac users' guide /

Shipping list no.: 89-124-P.

Full committee consideration of H.R. 3532 ... and H.R. 8471 ... and committee privileged resolution honoring Col. Llyod L. Burke, U.S.A. /

Mode of access: Internet.

Stars for navigators and polaris tables for the year 1910. (Appendix to the American nautical almanac for the year 1910)

Mode of access: Internet.

The air almanac /

Description based on: Jan.-June 1981.

The American ephemeris and nautical almanac.

Includes supplements.

Ephemeris of the sun, Polaris and other selected stars with companion data and tables.

Issues for 1910-39 are unnumbered.