Hubble image archive
Compass and Scale Image of Merging Galaxies in the Extended Groth Strip
This image displays several merging galaxies (identified by the green circles) found in different regions of a large survey known as the All-Wavelength Extended Groth Strip International Survey (AEGIS). Hubble's Advanced Camera for Surveys took the image in 2004 and 2005. The gal...
- Date
- Jan 1, 2011
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2011-30-2909-image
This image displays several merging galaxies (identified by the green circles) found in different regions of a large survey known as the All-Wavelength Extended Groth Strip International Survey (AEGIS). Hubble's Advanced Camera for Surveys took the image in 2004 and 2005. The galaxies reside at a range of distances from Earth, from 2.4 billion to 6.2 billion light-years away.
By studying many galaxy interactions at various distances from Earth, astronomers can measure the rate at which galaxies merge over time. This information yields important clues about how galaxies have changed throughout the universe's history.
Credits
Illustration: NASA, ESA, and Z. Levay (STScI);Science: NASA, ESA, and J. Lotz (STScI)
Image Details
| About The Object | |
|---|---|
| Object Name | Extended Groth Strip (EGS), and merging galaxies |
| Object Description | Merging Galaxies from the All-Wavelength Extended Groth Strip International Survey (AEGIS) |
| R.A. Position | 14h 17m |
| Dec. Position | +52° 30' |
| Constellation | Boötes |
| About The Data | |
| Data Description | The images released with this science finding were created from HST data from proposal : M. Davis (University of California, Berkeley). Notes: The science team for this release comprises: J. Lotz (STScI), P. Jonsson (Harvard-Smithsonian Center for Astrophysics), T. J. Cox (Carnegie Observatories), D. Croton (Centre for Astrophysics and Supercomputing/Swinburne University), J. Primack (University of California, Santa Cruz), R. Somerville (STScI/JHU), and K. Stewart (NASA/JPL). The surveys used in this study include: COSMOS (HST; PI: N. Scoville; HST Archival Data), GEMS (PI: H.-W. Rix; HST Archival Data), GOODS (PI: M. Giavalisco; HST Archival Data), AEGIS (PI: M. Davis; HST Archival Data), HUDF (PI: S. Beckwith; HST Archival Data), and DEEP2 (PI: M. Davis; Keck Survey). |
| Instrument | HST>ACS/WFC |
| Exposure Dates | June 2004 – March 2005 |
| Filters | F555W (V) and F814W (I) |
| About The Image | |
| Color Info | This image is a composite of many separate exposures made by the ACS/WFC instrument on the Hubble Space Telescope using two different filters that isolate broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F555W (V) Green: F555W (V) + F814W (I) Red: F814W (I) |
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Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov