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Colors of 2625 Quasars at 0<z<5 Measured in the Sloan Digital Sky Survey Photometric System
Gordon T. Richards, Xiaohui Fan, Donald P. Schneider +3
We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photome…
Detection of massive tidal tails around the globular cluster Pal 5 with SDSS commissioning data
M. Odenkirchen, E. K. Grebel, C. M. Rockosi +17
We report the discovery of two well-defined tidal tails emerging from the sparse remote globular cluster Palomar 5. These tails stretch out symmetrically to both sides of the clust…
The Luminosity Function of Galaxies in SDSS Commissioning Data
SDSS Collaboration, M. R. Blanton
During commissioning observations, the Sloan Digital Sky Survey (SDSS) has produced one of the largest existing galaxy redshift samples selected from CCD images. Using 11,275 galax…
The First Hour of Extra-galactic Data of the Sloan Digital Sky Survey Spectroscopic Commissioning: The Coma Cluster
SDSS Collaboration, Francisco J. Castander, Robert C. Nichol +6
On 26 May 1999, one of the Sloan Digital Sky Survey (SDSS) fiber-fed spectrographs saw astronomical first light. This was followed by the first spectroscopic commissioning run duri…
Discovery of a Close Pair of z = 4.25 Quasars from the Sloan Digital Sky Survey
Donald P. Schneider, Xiaohui Fan, Michael A. Strauss +17
We report the discovery of a pair of z = 4.25 quasars with a separation of 33 arcseconds. The brighter of the two objects was identified as a high-redshift quasar candidate from Sl…
The Sloan Digital Sky Survey: Technical Summary
D. G. York
The Sloan Digital Sky Survey (SDSS) will provide the data to support detailed investigations of the distribution of luminous and non- luminous matter in the Universe: a photometric…
No diffuse H2 in the metal deficient galaxy I Zw 18
A. Vidal-Madjar, D. Kunth, A. Lecavelier des Etangs +12
The metal deficient starburst galaxy IZw18 has been observed with FUSE in a search for H2 molecules. The spectrum obtained with an aperture covering the full galaxy shows no absorp…
Overview of the Far Ultraviolet Spectroscopic Explorer Mission
H. W. Moos
The Far Ultraviolet Spectroscopic Explorer satellite observes light in the far-ultraviolet spectral region, 905 - 1187 A with high spectral resolution. The instrument consists of f…
The Discovery of a Luminous z=5.80 Quasar from the Sloan Digital Sky Survey
X. Fan, R. L. White, M. Davis +8
We present observations of SDSSp J104433.04--012502.2, a luminous quasar at z=5.80 discovered from Sloan Digital Sky Survey (SDSS) multicolor imaging data. This object was selected…
FUSE Spectroscopy of High Velocity Cloud Complex C
E. M. Murphy, K. R. Sembach, B. K. Gibson +7
We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the sightline toward the Seyfert 1 galaxy Markarian 876, which passes through high velocity cloud (HVC) com…
Five High-Redshift Quasars Discovered in Commissioning Imaging Data of the Sloan Digital Sky Survey
W. Zheng, Z. I. Tsvetanov, D. P. Schneider +21
We report the discovery of five quasars with redshifts of 4.67 - 5.27 and z'-band magnitudes of 19.5-20.7 M_B ~ -27. All were originally selected as distant quasar candidates in op…
FUSE Observations of O VI Absorption in the Galactic Halo
B. D. Savage, K. R. Sembach, E. B. Jenkins +10
Far-ultraviolet spectra of 11 AGNs observed by FUSE are analyzed to obtain measures of O VI 1031.93 A absorption occurring over very long paths through Milky Way halo gas. Strong O…
FUSE Observations of Diffuse Interstellar Molecular Hydrogen
J. M. Shull, J. Tumlinson, E. B. Jenkins +11
We describe a moderate-resolution FUSE mini-survey of H2 in the Milky Way and Magellanic Clouds, using four hot stars and four AGN as background sources. FUSE spectra of nearly eve…
FUSE Observations of O VI in High Velocity Clouds
K. R. Sembach, B. D. Savage, J. M. Shull +13
We have used moderate-resolution (FWHM ~ 25 km/sec) spectra of AGNs and QSOs observed by the Far Ultraviolet Spectroscopic Explorer (FUSE) to make the first definitive measurements…
FUSE Observations of the Low-Redshift Lyman-beta Forest
J. M. Shull, M. L. Giroux, S. V. Penton +10
We describe a moderate-resolution (20-25 km/s) FUSE study of the low-redshift intergalactic medium. We report on studies of 7 extragalactic sightlines and 12 Ly-beta absorbers that…
The Missing Link: Early Methane ("T") Dwarfs in the Sloan Digital Sky Survey
S. K. Leggett, T. R. Geballe, Xiaohui Fan
We report the discovery of three cool brown dwarfs which fall in the effective temperature gap between the latest L dwarfs currently known, with no methane absorption bands in the…
Candidate RR Lyrae Stars Found in Sloan Digital Sky Survey Commissioning Data
Z. Ivezic, J. Goldston, K. Finlator
We present a sample of 148 candidate RR Lyrae stars selected from Sloan Digital Sky Survey (SDSS) commissioning data for about 100 deg2 of sky surveyed twice with Delta(t) = 1.9946…
Identification of A-colored Stars and Structure in the Halo of the Milky Way from SDSS Commissioning Data
B. Yanny, H. J. Newberg, S. Kent +21
A sample of 4208 objects with magnitude 15 < g* < 22 and colors of main sequence A stars has been selected from 370 square degrees of Sloan Digital Sky Survey (SDSS) commissioning…
The Discovery of a Second Field Methane Brown Dwarf from Sloan Digital Sky Survey Commissioning Data
SDSS Collaboration, Zlatan I. Tsvetanov
We report the discovery of a second field methane brown dwarf from the commissioning data of the Sloan Digital Sky Survey (SDSS). The object, SDSS J134646.45-003150.4 (SDSS 1346-00…