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Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
S. Perlmutter, G. Aldering, M. Della Valle +20
The ultimate fate of the universe, infinite expansion or a big crunch, can be determined by measuring the redshifts, apparent brightnesses, and intrinsic luminosities of very dista…
10 Mpc QSO Absorber Correlations at z~3
G. M. Williger, A. Smette, C. Hazard +2
We present results from a survey of the Lyman alpha forest at 2.15<z<3.26 toward ten QSOs concentrated within a 1 degree field. We find correlations of the Lyman alpha absorption l…
Optical and X-ray properties of the RIXOS AGN: II - Emission lines
E. M. Puchnarewicz, K. O. Mason, F. J. Carrera +9
We present the optical and UV emission line properties of 160 X-ray selected AGN taken from the RIXOS survey (including Halpha, Hbeta, [OIII]5007, MgII2798 and CIII]1909). This sam…
The Gravitationally-Lensed Radio Source MG0751+2716
J. Lehar, B. F. Burke, S. R. Conner +6
We report the discovery of a new gravitationally lensed radio source. Radio maps of MG0751+2716 show four lensed images, which, at higher resolution, are resolved into long arcs of…
Implications For The Hubble Constant from the First Seven Supernovae at z >= 0.35
The Supernova Cosmology Project, :, A. G. Kim +23
The Supernova Cosmology Project has discovered over twenty-eight supernovae (SNe) at 0.35 <z < 0.65 in an ongoing program that uses Type Ia SNe as high-redshift distance indicators…