Instrument Comparison of 1/200 of the Full GOODS Fields
(Left) HST ACS image of 1/200 of the full GOODS fields shows three X-ray sources (circled) and many other galaxies. (Right) Combined HST-Spitzer IRAC image of the same region. The two "hard" X-ray sources (yellow circles, indicating sources detected only at the shortest X-ray wavelengths) are very faint in the visible but much more luminous in the infrared, exactly as expected if the accreting black hole is hidden behind a dusty screen.
Credit:
About the Image
NASA press release
NASA caption
NASA caption
| Id: | opo0419h |
| Type: | Collage |
| Release date: | 1 June 2004, 17:00 |
| Size: | 800 x 331 px |
About the Object
| Name: | AGN, GOODS field |
| Type: | • Early Universe : Galaxy : Activity : AGN • Early Universe : Cosmology : Morphology : Deep Field • Quasars/AGN/Black Hole Images/Videos |
Colours & filters
| Band | Wavelength | Telescope |
| Optical B |
435 nm | Hubble Space Telescope ACS |
| Optical V |
606 nm | Hubble Space Telescope ACS |
| Infrared I |
775 nm | Hubble Space Telescope ACS |
| Infrared Z |
850 nm | Hubble Space Telescope ACS |
| Infrared | Spitzer Space Telescope IRAC |
