Browsing Chapman, Scott 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., D. M. Alexander, J. E. Geach, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.09." The Astrophysical Journal 691(1): 687-695
    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., D. M. Alexander, B. D. Lehmer, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey:Lyα Blobs are powered by heating, not cooling." The Astrophysical Journal, 700(1): 1-9
    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., Y. Matsuda, Ian Smail, S. C. Chapman, et al. 2005. "A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1." Monthly Notices of the Royal Astronomical Society 363(4): 1398-1408
    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 ...