期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 411, 期 1, 页码 23-36出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2010.17626.x
关键词
galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: starburst; ultraviolet: galaxies
资金
- STFC
- ELIXIR
- NASA [NAS 5-26555]
- [GO/DD-11359]
- [GO-11563]
- STFC [ST/G001774/1, ST/H002456/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H002456/1, ST/G001774/1] Funding Source: researchfish
The addition of Wide Field Camera Three on the Hubble Space Telescope has led to a dramatic increase in our ability to study the z > 6 Universe. The improvement in the near-infrared (NIR) sensitivity of WFC3 over previous instruments has enabled us to reach apparent magnitudes approaching 29 (AB). This allows us to probe the rest-frame UV continuum, redshifted into the NIR at z > 6. Taking advantage of the large optical depths of the intergalactic medium at this redshift, resulting in the Lyman alpha break, we use a combination of WFC3 imaging and pre-existing Advanced Camera for Surveys imaging to search for z approximate to 7 galaxies over four fields in and around Great Observatories Origins Survey-South (GOODS-S). Our analysis reveals 29 new z approximate to 7 star-forming galaxy candidates in addition to 15 pre-existing candidates already discovered in these fields. The improved statistics from our doubling of the robust sample of z-drop candidates confirms the previously observed evolution of the bright end of the luminosity function.
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