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No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641.
- Source :
- Monthly Notices of the Royal Astronomical Society; Aug2014, Vol. 442 Issue 4, p3454-3461, 8p
- Publication Year :
- 2014
-
Abstract
- 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 ∼ 2. This is consistent with the field luminosity function and indicates that there is no excess of >L★ galaxies within 1 Mpc of the quasar. A detection of the quasar shortwards of the Lyα line is consistent with the previously observed evolution of the intergalactic medium at z > 5.5. [ABSTRACT FROM PUBLISHER]
- Subjects :
- GALAXIES
QUASARS
INFRARED imaging
STELLAR luminosity function
Subjects
Details
- Language :
- English
- ISSN :
- 00358711
- Volume :
- 442
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Publication Type :
- Academic Journal
- Accession number :
- 97547217
- Full Text :
- https://doi.org/10.1093/mnras/stu1116