
Catching Black Holes on the Fly
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nustar130905
An optical color image of galaxies is seen here overlaid with X-ray data (magenta) from NASA's Nuclear Spectroscopic Telescope Array (NuSTAR).
NuSTAR's serendipitous discovery in this field lies to the left of a galaxy, called IC 751, at which the telescope originally intended to look. Both magenta blobs show X-rays from massive black holes buried at the hearts of galaxies.
The optical image is from the Sloan Digital Sky Survey and a color composite of images over three different optical wavebands (the G, R, and I bands). The NuSTAR data shows X-rays in the 3 to 24 keV energy range.
About the Object
Color Mapping
Band | Wavelength | Telescope |
---|---|---|
X-ray | 16.0 keV | NuSTAR |
Optical | 550 nm | SDSS |
Optical | 700 nm | SDSS |
Optical | 900 nm | SDSS |
Astrometrics