Facts about Antennae Galaxies
- 09
Emission line spectroscopy reveals that intense shock waves generated by the galactic collision in the Antennae systems are heating gas to temperatures exceeding 10,000 Kelvin throughout the merger region.
- 08
Hubble Space Telescope images reveal that the two colliding galaxies NGC 4038 and NGC 4039 are experiencing gravitational disruption so severe that their original disk structures have been completely destroyed and reformed into chaotic morphologies.
- 07
Radio observations at 1.3 centimeters wavelength show that the Antennae Galaxies' merger has triggered powerful supernovae at rates approximately 100 times greater than in non-interacting galaxies.
- 06
Infrared imaging reveals that the Antennae Galaxies contain approximately 40 billion solar masses of molecular gas distributed throughout their merging disks and tidal structures.
- 05
Approximately 200 million years ago, NGC 4038 and NGC 4039 began their collision, creating the distinctive antenna-like tidal tails that extend over 500,000 light-years into space.
- 04
Observations from the Chandra X-ray Observatory revealed that the Antennae Galaxies contain numerous ultraluminous X-ray sources, indicating active black hole accretion during their merger.
- 03
The Antennae Galaxies contain over 1000 massive star clusters, some with masses exceeding one million suns, concentrated in their galactic cores.
- 02
Spectacular bursts of star formation occur within the Antennae Galaxies, with star formation rates approximately 10 times higher than in the Milky Way.
- 01
Located approximately 63 million light-years away, the Antennae Galaxies are merging and will eventually form a single elliptical galaxy in several billion years.