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A Flaring L5 Dwarf: The Nature of HαEmission in Very Low Mass (Sub)Stellar Objects
James Liebert, J. Davy Kirkpatrick, K. L. Cruz +4
Time series spectrophotometry of the L5 dwarf 2MASS 01443536-0716142 showed strong Hαemission which declined by nearly 75% in four consecutive exposures. The line was not detected…
Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging. I: Method and a Preliminary Measurement for Fornax
S. Piatek, C. Pryor, E. W. Olszewski +6
This article presents and discusses a method for measuring the proper motions of the Galactic dwarf spheroidal galaxies using images taken with the Hubble Space Telescope. The meth…
The Hawaii-AAO K-band Galaxy Redshift Survey -- Paper I: The Local K-band Luminosity Function
J. -S. Huang, K. Glazebrook, L. L. Cowie +1
We present the K-band local luminosity function derived froma sample of 1056 bright (K<15) K-selected galaxies from the Hawaii-AAO K-band redshift survey. The Hawaii-AAO K-band red…
Oscillations in alpha Cen A observed with UCLES at the AAT
T. R. Bedding, R. P. Butler, C. McCarthy +5
We report Doppler measurements of alpha Cen A from time-series spectroscopy made with UCLES at the 3.9-m AAT. Wavelength calibration using an iodine absorption cell produced high-p…
An exoplanet in orbit around tau^1 Gruis
Hugh R. A. Jones, R. Paul Butler, Chris G. Tinney +4
We report the detection of a new candidate exoplanet around the metal-rich star tau^1 Gruis. With M sin = 1.23+/-0.18 M_JUP, a period of 1326+/-300 d and an orbit with an eccen…
Four new planets orbiting somewhat metal-enriched stars
C. G. Tinney, R. Paul Butler, Geoffrey W. Marcy +5
We report the detection of four new extra-solar planets from the Anglo-Australian Planet Search orbiting the somewhat metal-enriched stars HD73526, HD76700, HD30177 and HD2039. The…