ESO 69-6
| ESO 69-6 | |
|---|---|
.jpg) Hubble Space Telescope image of ESO 69-6 | |
| Observation data (J2000 epoch) | |
| Constellation | Triangulum Australe |
| Right ascension | 16h 38m 13.1s |
| Declination | −68° 26′ 42.8″ |
| Redshift | 0.046439 |
| Heliocentric radial velocity | 14,082 km/s |
| Distance | 654 Mly (200.6 Mpc) |
| Apparent magnitude (V) | 16.16 |
| Characteristics | |
| Type | LIRG |
| Notable features | Interacting galaxies |
| Other designations | |
| ESO 069-IG 006, PGC 58663, AM 1633-682, 2MASX J16381190-6826080, IRAS 16330-6820, 2MASS J16381342-6827167, CXO J163813.4-682717 | |
ESO 69-6 collectively known as AM 1633-682,[1] is a pair of interacting galaxies located 654 million light-years away in the constellation of Triangulum Australe.[1] They are made of two galaxies: ESO 069-IG 006N known as IRAS 16330-6820,[2] and ESO 069-IG 006S known as LEDA 285730.[3]
Characteristics
[edit]Both galaxies are in stages of merging with each other.[4] They resemble musical notes on a stave.[5] Long tidal tails are formed, which stars and gas are stripped and torn away from their outer regions.[5][6] These tails are proven signs of their interactions.[5] Additionally numerical simulations that reproduces interaction-induced inflow of gas and resulting nuclear starbursts can, might trigger strong starbursts in both galaxies.[7]
It is proven from the gravitational interactions of ESO 69–6, the surrounding intergalactic medium can be enriched with metals very efficiently up to distances of several 100 kpc.[8] This can be explained in terms of indirect processes or direct processes that create kinetic spreading of baryonic matter.[8] Possibly, they will eventually merge with each other and form a much bigger galaxy, in this case an elliptical galaxy, in the future.[9][10]
References
[edit]- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-29.
- ^ "NED Search Results for ESO 069-IG 006N". ned.ipac.caltech.edu. Retrieved 2024-04-29.
- ^ "NED Search Results for ESO 069-IG 006S". ned.ipac.caltech.edu. Retrieved 2024-04-29.
- ^ "Galaxies - Merging and Interacting | Center for Astrophysics | Harvard & Smithsonian". www.cfa.harvard.edu. Retrieved 2024-04-29.
- ^ a b c information@eso.org. "ESO 69-6". www.spacetelescope.org. Retrieved 2024-04-29.
- ^ "1993MNRAS.263..349S Page 349". adsabs.harvard.edu. Bibcode:1993MNRAS.263..349S. Retrieved 2024-04-29.
- ^ "Star formation in galaxy interactions and mergers - Frederic Bournaud". ned.ipac.caltech.edu. Retrieved 2024-04-29.
- ^ a b Kapferer, W.; Knapp, A.; Schindler, S.; Kimeswenger, S.; Kampen, E. van (2005-07-01). "Star formation rates and mass distributions in interacting galaxies". Astronomy & Astrophysics. 438 (1): 87–101. arXiv:astro-ph/0503559. Bibcode:2005A&A...438...87K. doi:10.1051/0004-6361:20052753. ISSN 0004-6361.
- ^ Chatterjee, Tapan K. (1993-01-01). "Interacting galaxies and mergers". Astrophysics and Space Science. 199 (2): 189–197. Bibcode:1993Ap&SS.199..189C. doi:10.1007/BF00613194. ISSN 1572-946X.
- ^ Chou, Richard C. (2012-01-01). "Observational Studies of Interacting Galaxies and the Development of a Wide Integral-field Infrared Spectrograph". American Astronomical Society, AAS Meeting #219, Id.411.04. 219: 411.04. Bibcode:2012AAS...21941104C.
