ESO 137-001
| ESO 137-001 | |
|---|---|
HST image of ESO 137-001 | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum Australe |
| Right ascension | 16h 13m 27.305s |
| Declination | −60° 45′ 50.59″ |
| Redshift | 0.015565 |
| Heliocentric radial velocity | 4630 ± 58 km/s |
| Distance | 220 million ly |
| Characteristics | |
| Type | SBc |
| Size | 100,000 ly |
| Apparent size (V) | 1.23′ × 0.55′ |
| Notable features | Trail of gas |
| Other designations | |
| ESO 137-001, ESO 137-1, ESO-LV 137-0010, PGC 57532 | |
ESO 137-001, also known as the Jellyfish Galaxy, is a barred spiral galaxy located in the constellation Triangulum Australe and in the cluster Abell 3627. As the galaxy moves to the center of the galaxy cluster at 1900 km/s, it is stripped by hot gas, thus creating a 260,000 light-year long tail. This is called ram pressure stripping (RPS). The intergalactic gas in Abell 3627 is at 100 million Kelvin, which causes star formation in the tails. The galaxy has a low amount of Hl regions which combine to a total mass of 3.5x10^8 solar masses, only 10% of which is located in the main disk of ESO 137-001.