No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641

Chris Simpson*, Daniel Mortlock, Stephen Warren, Sebastiano Cantalupo, Paul Hewett, Ross McLure, Richard McMahon, Bram Venemans

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We present optical and near-infrared imaging of the field of the z = 7.0842 quasar ULAS J112001.48+064124.3 taken with the Hubble Space Telescope. We use these data to search for galaxies that may be physically associated with the quasar, using the Lyman break technique, and find three such objects, although the detection of one in Spitzer Space Telescope imaging strongly suggests it lies at z similar to 2. This is consistent with the field luminosity function and indicates that there is no excess of > La similar to... galaxies within 1 Mpc of the quasar. A detection of the quasar shortwards of the Ly alpha line is consistent with the previously observed evolution of the intergalactic medium at z > 5.5.

Original languageEnglish
Pages (from-to)3454-3461
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume442
Issue number4
DOIs
Publication statusPublished - 21 Aug 2014

Keywords / Materials (for Non-textual outputs)

  • galaxies: active
  • galaxies: formation
  • galaxies: high redshift
  • quasars: individual: ULAS J1120+0641
  • dark ages, reionization, first stars
  • SIMILAR-TO 6
  • STAR-FORMING GALAXIES
  • LYMAN-BREAK GALAXIES
  • DIGITAL SKY SURVEY
  • LY-ALPHA EMITTERS
  • ULTRA-DEEP FIELD
  • FAINT GALAXIES
  • RADIO GALAXY
  • MILKY-WAY
  • QSO

Fingerprint

Dive into the research topics of 'No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641'. Together they form a unique fingerprint.

Cite this