A series of heavily pixelated black and white images of Eta Carinae-like stars, highlighted with boxes and crosshairs. The top five images are from Spitzer and the bottom five images are from Hubble. The images show warm dust surounding the stars

Eta Carinae Analogs

Researchers found likely Eta twins in four galaxies by comparing the infrared and optical brightness of each candidate source. Infrared images from NASA's Spitzer Space Telescope revealed the presence of warm dust surrounding the stars. Comparing this information with the brightness of each source at optical and near-infrared wavelengths as measured by instruments on Hubble, the team was able to identify candidate Eta Carinae-like objects. Top: 3.6-micron images of candidate Eta twins from Spitzer's IRAC instrument. Bottom: 800-nanometer images of the same sources from various Hubble instruments.

Credits: NASA, ESA, and R. Khan (GSFC and ORAU)
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Image CreditNASA, ESA, and R. Khan (GSFC and ORAU)
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