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astro-ph2005
An Observational Pursuit for Population III Stars in a Ly_alpha Emitter at z=6.33 through HeII Emission
Tohru Nagao, Kentaro Motohara, Roberto Maiolino +5
We present a very deep near-infrared spectroscopic observation of a strong Ly_alpha emitter at z=6.33, SDF J132440.6+273607, which we used to search for HeII 1640. This emission li…
astro-ph2005
The line-of-sight velocity distributions of intracluster planetary nebulae in the Virgo cluster core
Magda Arnaboldi, Ortwin Gerhard, J. Alfonso L. Aguerri +4
Radial velocities of 40 intracluster planetary nebulae (ICPNe) in the Virgo cluster were obtained with the new multi-fiber FLAMES spectrograph on UT2 at VLT. For the first time, th…