NGC 6810

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NGC 6810
NGC 6810 hst 06359 606.png
NGC 6810
Observation data (J2000.0 epoch)
Constellation Pavo
Right ascension 19h 43m 34.25s [1]
Declination −58° 39 20.12 [1]
Redshift 0.006775 [1]
Heliocentric radial velocity 2031 ± 10 km/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 a spiral galaxy approximately 87 million light-years away from Earth in the constellation of Pavo. [1]

Contents

Observational history

NGC 6810 was discovered by John Herschel on July 10, 1834. [3] It was later added to the New General Catalogue by John Louis Emil Dreyer.

Misclassification of NGC 6810

This galaxy used to be classified as a Seyfert 2 galaxy, but that is probably incorrect. [4] Recent X-ray observations provide no evidence of any active 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]

Features

NGC 6810 is an early-type spiral of roughly equivalent mass to the Milky Way. [4] X-ray, optical, IR and radio properties of NGC 6810 are all consistent with a starburst galaxy. [4]

Galactic-scale superwind

Observation of NGC 6810 with XMM-Newton reveals the presence of extended soft X-ray emission within the optical disc of the galaxy (which is closely associated with star-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 a galactic-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]

See also

Related Research Articles

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<span class="mw-page-title-main">NGC 7213</span> Galaxy in the constellation Grus

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<span class="mw-page-title-main">NGC 7130</span> Galaxy in the constellation Piscis Austrinus

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<span class="mw-page-title-main">NGC 765</span> Galaxy in the constellation Aries

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<span class="mw-page-title-main">NGC 2273</span> Galaxy in the constellation Lynx

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<span class="mw-page-title-main">NGC 7592</span> Interacting galaxy system in the constellation Aquarius

NGC 7592 is an interacting galaxy system located 300 million light years away in the constellation Aquarius. It was discovered by William Herschel on September 20, 1784. The total infrared luminosity is 1011.33 L, and thus it is categorised as a luminous infrared galaxy. One of the galaxies hosts a type 2 Seyfert nucleus.

<span class="mw-page-title-main">NGC 7679</span> Galaxy in the constellation Pisces

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<span class="mw-page-title-main">NGC 4593</span> Galaxy in the constellation of Virgo

NGC 4593 is a barred spiral galaxy located in the constellation Virgo. It is located at a distance of about 120 million light years from Earth, which, given its apparent dimensions, means that NGC 4593 is about 125,000 light years across. It was discovered by William Herschel on April 17, 1784. It is a Seyfert galaxy.

<span class="mw-page-title-main">NGC 7682</span> Barred spiral galaxy in the constellation Pisces

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<span class="mw-page-title-main">I Zwicky 1</span> Galaxy in the constellation Pisces

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<span class="mw-page-title-main">IRAS 19254-7245</span> Galaxy in the constellation Pavo

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References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 28 November 2017.
  2. 1 2 "Revised NGC Data for NGC 6810". spider.seds.org. Retrieved December 9, 2017.
  3. "Data for NGC 6810". www.astronomy-mall.com. Retrieved December 9, 2017.
  4. 1 2 3 4 5 6 7 8 9 Strickland, David K. (2007). "A new superwind galaxy: XMM–Newton observations of NGC 6810". Monthly Notices of the Royal Astronomical Society . 376 (2): 523–533. arXiv: astro-ph/0701630 . Bibcode:2007MNRAS.376..523S. doi: 10.1111/j.1365-2966.2007.11478.x . S2CID   13834527.
  5. Forbes, Duncan A.; Norris, R. P. (1998). "Star Formation in Southern Seyfert Galaxies". Monthly Notices of the Royal Astronomical Society. 300 (3): 757. arXiv: astro-ph/9804298 . Bibcode:1998MNRAS.300..757F. doi: 10.1046/j.1365-8711.1998.01940.x . S2CID   3719096 . Retrieved 3 December 2017.
  6. 1 2 3 "Blowin' in the galactic superwind". www.astronomy.com. Retrieved 3 December 2017.