Spectroscopic confirmation of an ultramassive and compact galaxy at Z = 3.35: A detailed look at an early progenitor of local giant ellipticals

We present the first spectroscopic confirmation of an ultramassive galaxy at redshift z > 3 using data from Keck- NIRSPEC, VLT-X-shooter, and GTC-Osiris. We detect strong [O III] and Lya emission, and weak [O II], C IV, and He II, placing C1-23152 at a spectroscopic redshift of zspec = 3.351....

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Bibliographic Details
Main Authors: Marsan, Z., Marchesini, D., Brammer, G., Stefanon, M., Muzzin, A., Fernández-Soto, A., Geier, S., Hainline, K., Intema, Hubertus, Karim, A., Labbé, I., Toft, S., Dokkum, P.
Format: Journal Article
Published: Institute of Physics Publishing 2015
Online Access:http://hdl.handle.net/20.500.11937/73888