Archivo de imágenes de Hubble
Imagen de brújula y escala para Galaxy Cluster MACS J0416.1-2403
These two Hubble Space Telescope images reveal an array of faraway galaxies, many of which existed at least 12.9 billion years ago and earlier. The circles pinpoint the most distant galaxies.The images were taken simultaneously by two of Hubble's science instruments. The image at...
- Fecha
- Jan 1, 2015
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2015-45-3667-image
These two Hubble Space Telescope images reveal an array of faraway galaxies, many of which existed at least 12.9 billion years ago and earlier. The circles pinpoint the most distant galaxies.
The images were taken simultaneously by two of Hubble's science instruments. The image at left, taken in near-infrared light by the Wide Field Camera 3, shows a very massive cluster of galaxies, called MACS J0416.1-2403, the large, bright galaxies at the center of the image. The cluster's immense gravitational field magnifies and brightens the images of faint galaxies far behind it, in a phenomenon called gravitational lensing.
The image at right, taken in visible light by the Advanced Camera for Surveys, is a parallel field. This view reveals myriad galaxies that make up a general background population, not compacted into a galaxy cluster.
Astronomers examined these Hubble images, along with observations taken in near-infrared light with the Spitzer Space Telescope, to determine the distances of the reddest-looking galaxies. Their light is stretched by the expansion of the universe. So the redder a galaxy looks, the farther away it is. These very dim objects may be more representative of the early universe, and offer new insight on the formation and evolution of the first galaxies.
Credits
NASA, ESA, and Z. Levay (STScI/AURA);Acknowledgment: NASA, ESA, and L. Infante (Pontificia Universidad Católica de Chile)
Detalles de la imagen
| About The Object | |
|---|---|
| Object Name | MACS J0416-2403, MACS J0416.1-2403 |
| Object Description | Strong-lensing cluster |
| R.A. Position | 04h 16m 09s.90 |
| Dec. Position | -04h 16m 09s.90 |
| Constellation | Eridanus |
| Distance | Redshift: z = 0.396 |
| About The Data | |
| Data Description | MACS J0416-2403, MACS J0416.1-2403 is part of the Frontier Fields Program. These data were observed via the HST proposals: : J. Lotz (STScI) et al.; : M. Postman (STScI) et al. Supplemental data were obtained by proposal , PI: S. Rodney (JHU) et al. The science team comprises: L. Infante (Pontifica Universidad Católica de Chile), W. Zheng (JHU), N. Laporte and P. Troncoso (Pontifica Universidad Católica de Chile), A. Molino (University of São Paulo, Brazil/Instituto de Astrofisica de Andalucia/CSIC, Spain), J. Diego (University of Cantabria, Spain), F. Bauer (Millennium Institute of Astrophysics, Chile/Space Science Institute, Boulder), A. Zitrin (Caltech), J. Moustakas (Siena College, NY), X. Huang (University of Science and Technology of China), X. Shu (Anhui Normal University, China), D. Bina (IRAP/CNRS Toulouse, France), G. Brammer (STScI), T. Broadhurst (University of Basque Country/IKERBASQUE, Basque Foundation for Science, Spain), H. Ford (JHU), and S. Garcia and S. Kim (Pontifica Universidad Católica de Chile). |
| Instrument | HST>ACS/WFC and HST>WFC3/IR |
| Exposure Dates | January 5 - September 28, 2014 |
| Filters | ACS/WFC: F435W (I) and F606W (R); ACS/WFC: F814W (I) and WFC3/IR F105W (Y); WFC3/IR: F125W (J), F140W (JH), and F160W (H) |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the WFC3/IR and ACS/WFC instruments. Several filters were used to sample various wavelengths. 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: F435W (I) + F606W (R) Green: F814W (I) + WFC3/IR F105W (Y) Red: F125W (J) + F140W (JH) + F160W (H) |
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Ver en NASA.gov