HDUV GOODS-South Field
About This Image
Caption
A Multi-Wavelength Sea of Galaxies
This sea of approximately 15,000 galaxies — about 12,000 of which are forming stars — is one of the most comprehensive portraits yet of the universe’s evolutionary history. The ultraviolet vision from NASA’s Hubble Space Telescope, combined with infrared and visible-light data from Hubble and other space and ground-based telescopes, opens a new window on the evolving universe. It tracks the birth of stars over the last 11 billion years back to the cosmos’ busiest star-forming period, which happened about 3 billion years after the big bang.
Ultraviolet light has been the missing piece to the cosmic puzzle. Because Earth’s atmosphere filters most ultraviolet light, Hubble can provide some of the most sensitive space-based ultraviolet observations possible.
This image straddles the gap between the very distant galaxies, which can only be viewed in infrared light due to the expansion of the universe, and closer galaxies, which can be seen across a broad spectrum. By comparing images of star formation in the distant and nearby universe, astronomers gain a better understanding of how nearby galaxies grew.
The program, called the Hubble Deep UV (HDUV) Legacy Survey, extends and builds on the previous Hubble multi-wavelength data in the CANDELS-Deep (Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey) fields within the central part of the GOODS (The Great Observatories Origins Deep Survey) fields. This mosaic is 14 times the area of the Hubble Ultraviolet Ultra Deep Field released in 2014.
This image is a portion of the GOODS-South field, which is located in the southern constellation Fornax.
About The Object
- Object Name
- HDUV GOODS South
- Object Description
- Deep field image
- R.A. Position
- 03:32:24.59
- Dec. Position
- -27:47:28.99
- Constellation
- Fornax
About The Data
- Data Description
- The HST observations include those from programs 12444, 12445 (S. Faber), and 13872 (P. Oesch)
- Instrument
- ACS/WFC, WFC3/UVIS, WFC3/IR
- Exposure Dates
- Sep 2012 - Aug 2013, and Nov 2014 - Nov 2015
- Filters
- WFC3/UVIS F275W, F336W, ACS/WFC F435W, F606W, F775W, F850LP, WFC3/IR F125W, F160W
About The Image
- Color Info
- These images are a composite of separate exposures acquired by the ACS and WFC3 instruments on the Hubble Space Telescope. Several filters were used to sample narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue: F275W, F336W, F435W, F606W Green: F775W, F850LP Red: F125W, F160W
- Compass and Scale Image
About The Object
- Object Name
- A name or catalog number that astronomers use to identify an astronomical object.
- Object Description
- The type of astronomical object.
- R.A. Position
- Right ascension – analogous to longitude – is one component of an object's position.
- Dec. Position
- Declination – analogous to latitude – is one component of an object's position.
- Constellation
- One of 88 recognized regions of the celestial sphere in which the object appears.
About The Data
- Data Description
- Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
- Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
- Instrument
- The science instrument used to produce the data.
- Exposure Dates
- The date(s) that the telescope made its observations and the total exposure time.
- Filters
- The camera filters that were used in the science observations.
About The Image
- Color Info
- A brief description of the methods used to convert telescope data into the color image being presented.
- Compass and Scale Image
- An astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.