Archivo de imágenes de Hubble
Hubble sondea el halo invisible de una galaxia
Distant quasars serve as distant lighthouse beacons that shine through the gas-rich "fog" of hot plasma encircling galaxies. At ultraviolet wavelengths, Hubble's Cosmic Origins Spectrograph (COS) is sensitive to absorption from many ionized heavy elements, such as nitrogen, oxyge...
- Fecha
- Jan 1, 2011
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2011-37-2930-image
Distant quasars serve as distant lighthouse beacons that shine through the gas-rich "fog" of hot plasma encircling galaxies. At ultraviolet wavelengths, Hubble's Cosmic Origins Spectrograph (COS) is sensitive to absorption from many ionized heavy elements, such as nitrogen, oxygen, and neon. COS's high sensitivity allows many galaxies that happen to lie in front of the much more distant quasars to be studied. The ionized heavy elements serve as proxies for estimating how much mass is in a galaxy's halo.
Credits
Illustration: NASA, ESA, and A. Feild (STScI);Science: NASA, ESA, N. Lehner (University of Notre Dame), T. Tripp (University of Massachusetts, Amherst), and J. Tumlinson (STScI)
Descargas
Fuente
La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov