Spectrum of Gas Disc in Active Galaxy M87
A schematic diagram of velocity measurements of a rotating disk of hot gas in the core of active galaxy M87.
The measurement was made by studying how the light from the disk is redshifted and blueshifted -- as part of the swirling disk spins in earth's direction and the other side spins away from earth.
Holland Ford, Space Telescope Science Institute/Johns Hopkins University; Richard Harms, Applied Research Corp.; Zlatan Tsvetanov, Arthur Davidsen, and Gerard Kriss at Johns Hopkins; Ralph Bohlin and GeorgeHartig at Space Telescope Science Institute; Linda Dressel and Ajay K.Kochhar at Applied Research Corp. in Landover, Md.; and Bruce Margon fromthe University of Washington in Seattle NASA/ESA
About the Image
|Release date:||25 May 1994, 06:00|
|Size:||512 x 512 px|
About the Object
|Name:||IRAS 12282+1240, M 87, Messier 87, NGC 4486, Virgo Galaxy|
|Type:||• Local Universe : Galaxy : Component : Central Black Hole|
• Quasars/AGN/Black Hole Images/Videos
• Cosmology Images/Videos
|Distance:||55 million light years|
Colours & filters
H-alpha + Nii
|658 nm||Hubble Space Telescope|