Browsing by Author "Yamada, T."

Now showing items 1-3 of 3

  • The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.09 

    Lehmer, B. D.; Alexander, D. M.; Geach, J. E.; Smail, Ian; Basu-Zych, A.; Bauer, F. E.; Chapman, S. C.; Matsuda, Y.; Scharf, C. A.; Volonteri, M.; Yamada, T. (2009-01-20)
    We present results from a new ultra-deep 400 ks Chandra observation of the SSA22 protocluster at z = 3.09. We have studied the X-ray properties of 234 z ~ 3 Lyman break galaxies (LBGs; protocluster and field) and 158 z = ...

  • The Chandra Deep Protocluster Survey: Lyα Blobs are powered by heating, not cooling 

    Geach, J. E.; Alexander, D. M.; Lehmer, B. D.; Smail, Ian; Matsuda, Y.; Chapman, S. C.; Scharf, C. A.; Ivison, R. J.; Volonteri, M.; Yamada, T.; Blain, A. W.; Bower, R. G.; Bauer, F. E.; Basu-Zych, A. (2009-07-20)
    We present the results of a 400ks Chandra survey of 29 extended Ly-alpha emitting nebulae (Ly-alpha Blobs, LABs) in the z=3.09 proto-cluster in the SSA22 field. We detect luminous X-ray counterparts in five LABs, implying ...

  • A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1 

    Geach, J. E.; Matsuda, Y.; Smail, Ian; Chapman, S. C.; Yamada, T.; Ivison, R. J.; Hayashino, T.; Ohta, K.; Shioya, Y.; Taniguchi, Y. (2005-09-30)
    We present the results from a submm survey of a sample of 23 giant Lya emitting nebulae in the overdensity at z=3.09 in the SA22 field. These objects, which have become known as Lya Blobs (LABs) have a diverse range of ...