| ING Media Archival Record |
| ITEM REFERENCE | 1815 |
| PERMANENT LINK | https://astro.ing.iac.es/outreach/?1815 |
| EXTACCESS | yes |
| COLLECTION | Image archive |
| TITLE | The WHT Deep Field. |
| KEYWORDS | Distant universe;Distant universe |
| DATE | 1999-01-01 |
| DESCRIPTION | The Herschel Deep Field is a 7x7 arcminute patch of sky in the constellation of Pisces which has been observed with the 4.2-m William Herschel telescope for a total of about 70 hours. The picture shown here is a rue colour composite of images taken at ultra-violet, blue and red wavelengths. Most of the objects are distant galaxies, although the very brightest ones are stars. This is one of the deepest images ever taken from the ground and shows images almost as faint as the famous Hubble Deep Field but over a 10 times bigger area of sky. An analysis of the colours of these galaxies has shown that many are at such large distances and look-back times that the epoch of galaxy formation must have been at even higher redshifts than was previously thought. This is a true-colour image composed from the U, B and R frames and acquired with the Prime Focus camera on the WHT. Limiting magnitudes are U=26.8 (34 hours), B=27.9 (28 hours) and R=26.3 (8 hours). PDF version: https://www.ing.iac.es/PR/dissemination/deep.pdf |
| CREDIT | Nigel Metcalfe and Tom Shanks (University of Durham) |
| TELESCOPE | WHT |
| INSTRUMENT | PFC |
| RELATED URL | http://star-www.dur.ac.uk/~nm/pubhtml/herschel.html |
| THUMB_200 | 
https://www.ing.iac.es/PR/science/deep_s.jpg |
| AVAILABLE FILES | JPG (260K) 988×966 pixels
TIF (1.8M) 787×768 pixels |
| TIMESTAMP | 2024-08-25 22:41:11 |
| USAGE | For publication or display (electronic or otherwise), all photos, images or videos must be credited: "Photo/image/video courtesy of the Isaac Newton Group of Telescopes, La Palma" unless otherwise noted in the provided credit line. Please contact ING's Public Relations Officer (outreach  ing.iac.es) with all the details of the use. |
