Browsing by Author "Lehmer, B. D."

Now showing items 1-5 of 5

    • ALMA observations of a z ≈ 3.1 protocluster : Star formation from active galactic nuclei and Lyman-alpha blobs in an overdense environment 

      Alexander, D. M.; Simpson, J. M.; Harrison, C. M.; Mullaney, J. R.; Smail, I.; Geach, J. E.; Hickox, R. C.; Karim, A.; Kubo, M.; Lehmer, B. D.; Matsuda, Y.; Rosario, D. J.; Stanley, F.; Swinbank, A. M.; Umehata, H.; Yamada, T.; Hine, Nancy (2016-09-21)
      We exploit Atacama Large Interferometer Array (ALMA) 870 μm observations to measure the star formation rates (SFRs) of eight X-ray detected active galactic nuclei (AGNs) in a z ≈ 3.1 protocluster, four of which reside in ...

    • The average submillimetre properties of Lyman-alpha Blobs at z=3 

      Hine, N. K.; Geach, J. E.; Matsuda, Y.; Lehmer, B. D.; Michalowski, M. J.; Farrah, D.; Spaans, M.; Oliver, S. J.; Smith, D. J. B.; Chapman, S. C.; Jenness, T.; Alexander, D. M.; Robson, I.; Werf, P. van der (2016-08-21)
      Ly-alpha blobs (LABs) offer insight into the complex interface between galaxies and their circumgalactic medium. Whilst some LABs have been found to contain luminous star-forming galaxies and active galactic nuclei that ...

    • An extragalactic spectroscopic survey of the SSA22 field 

      Saez, C.; Lehmer, B. D.; Bauer, F. E.; Stern, D.; Gonzales, A.; Rreza, I.; Alexander, D. M.; Matsuda, Y.; Geach, J. E.; Harrison, F. A.; Hayashino, T. (2015-07-01)
      We present Very Large Telescope VIMOS, Keck DEIMOS and Keck LRIS multi-object spectra of 367 sources in the field of the z ≈ 3.09 protocluster SSA22. Sources are spectroscopically classified via template matching, allowing ...

    • Herschel protocluster survey : A search for dusty star-forming galaxies in protoclusters at z = 2-3 

      Kato, Y.; Matsuda, Y.; Smail, Ian; Swinbank, A. M.; Hatsukade, B.; Umehata, H.; Tanaka, I.; Saito, T.; Iono, D.; Tamura, Y.; Kohno, K.; Erb, D. K.; Lehmer, B. D.; Geach, J. E.; Steidel, C. C.; Alexander, D. M.; Yamada, T.; Hayashino, T. (2016-08-21)
      We present a Herschel/Spectral and Photometric Imaging Receiver (SPIRE) survey of three protoclusters at z = 2-3 (2QZCluster, HS1700, SSA22). Based on the SPIRE colours (S350/S250 and S500/S350) of 250 μm sources, we ...

    • A resolved map of the infrared excess in a Lyman Break Galaxy at z=3 

      Koprowski, M. P.; Coppin, K. E. K.; Geach, J. E.; Hine, N. K.; Bremer, M.; Chapman, S. C.; Davies, L. J. M.; Hayashino, T.; Knudsen, K. K.; Kubo, M.; Lehmer, B. D.; Matsuda, Y.; Smith, D. J. B.; Werf, P. P. van der; Violino, G.; Yamada, T. (2016-09-10)
      We have observed the dust continuum of ten z=3.1 Lyman Break Galaxies with the Atacama Large Millimeter/Submillimeter Array at ~450 mas resolution in Band 7. We detect and resolve the 870um emission in one of the targets ...