New Star Forming Galaxies at z\approx 7 from WFC3 Imaging
The addition of Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) has led to a dramatic increase in our ability to study the z>6 Universe. The increase in the near-infrared (NIR) sensitivity of WFC3 over previous instruments has enabled us to reach apparent magnitudes approaching...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1826263016628289536 |
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| author | Wilkins, S Bunker, A Lorenzoni, S Caruana, J |
| author_facet | Wilkins, S Bunker, A Lorenzoni, S Caruana, J |
| author_sort | Wilkins, S |
| collection | OXFORD |
| description | The addition of Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) has led to a dramatic increase in our ability to study the z>6 Universe. The increase 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 ultraviolet (UV) continuum, redshifted into the NIR at $z>6$. Taking advantage of the large optical depths at this redshift, resulting in the Lyman-alpha break, we use a combination of WFC3 imaging and pre-existing Advanced Camera for Surveys (ACS) imaging to search for z approx 7 over 4 fields. Our analysis reveals 29 new z approx 7 star forming galaxy candidates in addition to 16 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. |
| first_indexed | 2024-03-06T19:45:00Z |
| format | Journal article |
| id | oxford-uuid:21fcfda6-7905-4a18-b634-46dbf74004a8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:45:00Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:21fcfda6-7905-4a18-b634-46dbf74004a82022-03-26T11:36:16ZNew Star Forming Galaxies at z\approx 7 from WFC3 ImagingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:21fcfda6-7905-4a18-b634-46dbf74004a8EnglishSymplectic Elements at Oxford2010Wilkins, SBunker, ALorenzoni, SCaruana, JThe addition of Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) has led to a dramatic increase in our ability to study the z>6 Universe. The increase 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 ultraviolet (UV) continuum, redshifted into the NIR at $z>6$. Taking advantage of the large optical depths at this redshift, resulting in the Lyman-alpha break, we use a combination of WFC3 imaging and pre-existing Advanced Camera for Surveys (ACS) imaging to search for z approx 7 over 4 fields. Our analysis reveals 29 new z approx 7 star forming galaxy candidates in addition to 16 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. |
| spellingShingle | Wilkins, S Bunker, A Lorenzoni, S Caruana, J New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title | New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title_full | New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title_fullStr | New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title_full_unstemmed | New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title_short | New Star Forming Galaxies at z\approx 7 from WFC3 Imaging |
| title_sort | new star forming galaxies at z approx 7 from wfc3 imaging |
| work_keys_str_mv | AT wilkinss newstarforminggalaxiesatzapprox7fromwfc3imaging AT bunkera newstarforminggalaxiesatzapprox7fromwfc3imaging AT lorenzonis newstarforminggalaxiesatzapprox7fromwfc3imaging AT caruanaj newstarforminggalaxiesatzapprox7fromwfc3imaging |