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This portion of the Hubble GOODS-South field contains hundreds of visible galaxies. A representative sample of those galaxies on the right half of the image also have their spectra overlayed in a representation of slitless spectroscopy. By using slitless spectroscopy, a spectrum...
- Fecha
- Jan 1, 2021
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2021-048-01ff840cqtesppkgsh7w67ar0e
This portion of the Hubble GOODS-South field contains hundreds of visible galaxies. A representative sample of those galaxies on the right half of the image also have their spectra overlayed in a representation of slitless spectroscopy. By using slitless spectroscopy, a spectrum is obtained that contains both spatial and wavelength information. For example, the inset highlights a spiral galaxy that shines brightly in the emission line of hydrogen-alpha (Hα) as well as in broad starlight (the horizontal strip of light). Its spiral shape is traced by the Hα portion of the spectrum. By combining imaging and spectroscopy, astronomers can learn much more than from each technique alone.
Credits
Image
NASA, ESA
Image Processing
Joseph DePasquale (STScI)
Acknowledgment
University of Geneva, Pascal Oesch (University of Geneva), Mireia Montes (UNSW)
Detalles de la imagen
| About The Object | |
|---|---|
| Object Name | HDUV GOODS South |
| Object Description | Deep field image with spectroscopy overlay |
| 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 , (S. Faber), and (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 |
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La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov