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103 papers · 1 filter
Characterizing Earth-like Planets with Terrestrial Planet Finder
S. Seager, E. B. Ford, E. L. Turner
For the first time in human history the possibility of detecting and studying Earth-like planets is on the horizon. Terrestrial Planet Finder (TPF), with a launch date in the 2015…
Active star formation in N11B Nebula in the Large Magellanic Cloud: a sequential star formation scenario confirmed
Rodolfo H. Barba, Monica Rubio, Miguel R. Roth +1
The second largest HII region in the Large Magellanic Cloud, N11B has been surveyed in the near IR.We present JHKs images of the N11B nebula.These images are combined with CO(1-0)…
The Time-Variable Ultra-Luminous X-ray Sources of "The Antennae"
G. Fabbiano, A. Zezas, A. R. King +3
We report the first results of the Chandra temporal monitoring of the ultra-luminous X-ray sources (ULXs) in the Antennae galaxies (NGC 4038/39). Observations at four different epo…
Circumnuclear Dust in Nearby Active and Inactive Galaxies. I. Data
Paul Martini, Michael W. Regan, John S. Mulchaey +1
The detailed morphology of the interstellar medium (ISM) in the central kiloparsec of galaxies is controlled by pressure and gravitation. The combination of these forces shapes bot…
Circumnuclear Dust in Nearby Active and Inactive Galaxies. II. Bars, Nuclear Spirals, and the Fueling of Active Galactic Nuclei
Paul Martini, Michael W. Regan, John S. Mulchaey +1
(Abridged) We present a detailed study of the relation between circumnuclear dust morphology, host galaxy properties, and nuclear activity in nearby galaxies. We use our sample of…
Evidence for Core Collapse in the Type Ib/c SN 1999ex
Mario Hamuy, Maximilian Stritzinger, M. M. Phillips +3
We present optical and infrared spectra of SN 1999ex that reveal a clear example of an intermediate Type Ib/c case. This suggests a continuous spectroscopic sequence between Type I…