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The Stellar Populations in the Central Parsecs of Galactic Bulges Central Stellar Populations
Marc Sarzi, Hans-Walter Rix, Joseph C. Shields +5
We present Hubble Space Telescope blue spectra at intermediate spectral resolution for the nuclei of 23 nearby disk galaxies. These objects were selected to have nebular emission i…
The Survey of Nearby Nuclei with STIS (SUNNS):Emission-Line Nuclei at Hubble Space Telescope Resolution
Joseph C. Shields, Hans-Walter Rix, Marc Sarzi +6
We present results from a program of optical spectroscopy for 23 nearby galaxy emission-line nuclei. This investigation takes advantage of the spatial resolution of the Hubble Spac…
Large-Scale Correlations in the Lyman-alpha Forest at z = 3-4
George D. Becker, Wallace L. W. Sargent, Michael Rauch
We present a study of the spatial coherence of the intergalactic medium toward two pairs of high-redshift quasars with moderate angular separations observed with Keck/ESI, Q1422+23…
POX 52: A Dwarf Seyfert 1 Galaxy With An Intermediate-Mass Black Hole
A. J. Barth, L. C. Ho, R. E. Rutledge +1
We describe new optical images and spectra of POX 52, a dwarf galaxy with an active nucleus that was originally detected in the POX objective-prism survey. While POX 52 was origina…
The Distribution of Metallicity in the IGM at z~2.5: OVI and CIV Absorption in the Spectra of 7 QSOs
Robert A. Simcoe, Wallace L. W. Sargent, Michael Rauch
We present a direct measurement of the metallicity distribution function for the high redshift intergalactic medium. We determine the shape of this function using survival statisti…