Astronomy:ESO 137-001

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ESO 137-001
New Hubble image of spiral galaxy ESO 137-001.jpg
HST image of ESO 137-001[1]
Observation data (J2000 [2] epoch)
ConstellationTriangulum Australe [3]
Right ascension 16h 13m 27.305s [2]
Declination−60° 45′ 50.59″ [2]
Distance220 million ly [4]
TypeSBc [2]
Size100,000 ly [5]
Apparent size (V)1.23′ × 0.55 [3]
Notable featuresTrail of gas
Other designations
ESO 137-001 , ESO 137-1 , ESO-LV 137-0010 , LEDA 57532 , PGC 57532

ESO 137-001 is a barred spiral galaxy[2] located in the constellation Triangulum Australe and in the cluster Abell 3627.[6] As the galaxy moves to the center of the cluster at 7 million kilometers per hour,[4] it is stripped by hot gas thus creating a 260,000 light-year long tail.[6] This is called ram pressure stripping.[5] The intergalactic gas in the Abell 3627 is 180 million degrees Fahrenheit which causes star formation in the tails.[5][6]


The galaxy was discovered by Dr. Ming Sun in 2005.[7]

Galaxy's fate

Observations reveal motion of gas as it is ripped out of the galaxy.[8]

The stripping of gas is thought to have a significant effect on the galaxy's development, removing cold gas from the galaxy, shutting down the formation of new stars in the galaxy, and changing the appearance of inner spiral arms and bulges because of the effects of star formation.


See also


External links 137-001 was the original source. Read more.