| NGC 6810 | |
|---|---|
 NGC 6810 | |
| Observation data (J2000.0epoch) | |
| Constellation | Pavo |
| Right ascension | 19h 43m 34.25s[1] |
| Declination | −58° 39′ 20.12″[1] |
| Redshift | 0.006775[1] |
| Heliocentric radial velocity | 2031 ± 10km/s[1] |
| Distance | 87 Mly[1] |
| Apparent magnitude (V) | 11.60[2] |
| Apparent magnitude (B) | 12.40[2] |
| Characteristics | |
| Type | SA(s)ab:sp[1] |
| Apparent size (V) | 3.2 x 0.9[1] |
| Other designations | |
| PGC 63571,ESO 142-35 | |
NGC 6810 is aspiral galaxy approximately87 millionlight-years away from Earth in theconstellation ofPavo.[1]
NGC 6810 was discovered byJohn Herschel on July 10, 1834.[3] It was later added to theNew General Catalogue byJohn Louis Emil Dreyer.
This galaxy used to be classified as aSeyfert 2 galaxy, but that is probably incorrect.[4] Recent X-ray observations provide no evidence of anyactive galactic nucleus (AGN) activity,[4] and high resolution optical spectra do not confirm the status of NGC 6810 as a Seyfert galaxy, thus it appears to have been misclassified.[4][5]
NGC 6810 is an early-type spiral of roughly equivalent mass to theMilky Way.[4] X-ray, optical, IR and radio properties of NGC 6810 are all consistent with astarburst galaxy.[4]
Observation of NGC 6810 withXMM-Newton reveals the presence of extended soft X-ray emission within theoptical disc of the galaxy (which is closely associated withstar-forming regions) and also beyond the optical disc.[4] This, along with Hα filamentation and peculiar minor axis ionized gas kinematics, strongly suggest that NGC 6810 is host to agalactic-scale superwind[4] which is streaming from the starburst region.[6]
The actively star-forming regions and the base radius of the outflow are unusually spread out, and extend out to a radius of ~6.5 kpc from the nucleus. Most superwinds in other galaxies appear to arise in ≲ 1 kpc-scale nuclear starburst regions.[4] That makes NGC 6810 one of the few ‘disc-wide’ superwinds currently known,[4] because NGC 6810's superwind base extends across nearly 70 percent of the entire galaxy's diameter.[6] Only three other starburst galaxies are known to have broad superwind sources.[6]
