NGC 7496

Source: Wikipedia, the free encyclopedia.
61 Mly (18.7 Mpc)[2]
Apparent magnitude (V)11.1
Characteristics
Type(R':)SB(rs)bc [1]
Apparent size (V)3.3′ × 3.0′[1]
Notable featuresSeyfert galaxy, starburst galaxy
Other designations
ESO 291- G001, VV 771, MCG -07-47-020, PGC 70588[1]

NGC 7496 is a barred spiral galaxy located in the constellation Grus. It is located at a distance of about 60 million light-years from Earth, which, given its apparent dimensions, means that it is 75,000 light years across. It was discovered by John Herschel on September 5, 1834.[3] It is a type 2 Seyfert galaxy with high star formation rate around the nucleus.[4]

Characteristics

The nucleus of the galaxy has been found to be

HII region in the nucleus, indicating the presence of young hot stars. The nucleus is also a source of radio waves.[5] The most accepted theory for the energy source of active galactic nuclei is the presence of an accretion disk around a supermassive black hole
.

NGC 7496 was one of the first galaxies to be examined by the

H-alpha and CO(2–1) emission.[2]

Clumpy ultraviolet emission has been observed from the spiral arms of the galaxy. Massive stellar complexes are present in the north arm and regions with young stellar complexes are present in the end of both arms. The age of the stars in these complexes is estimated to be less than 200 million years. Photometry in various wavelengths indicates that there is very cold dust in the galaxy.[7]

Nearby galaxies

NGC 7496 is a member of the NGC 7582 galaxy group.

Local Supercluster and Pavo–Indus Supercluster.[10]

Gallery

See also

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 7496. Retrieved 2019-01-18.
  2. ^
    doi:10.3847/2041-8213/aca653
    .
  3. ^ Seligman, Courtney. "NGC 7496 (= PGC 68165)". Celestial Atlas. Retrieved 19 November 2018.
  4. doi:10.1086/501529
    .
  5. doi:10.1086/191771
    .
  6. doi:10.3847/2041-8213/acaaae
    .
  7. doi:10.1093/mnras/stab1048
    .
  8. ^
    S2CID 119194025. Archived from the original
    on 31 January 2016. Retrieved 20 January 2019.
  9. ISBN 978-1-4419-1777-5
    .
  10. Bibcode:1993A&AS..100..493F.{{cite journal}}: CS1 maint: multiple names: authors list (link
    )
  11. ^ "NGC 7496 (MIRI Image)". www.esawebb.org. 16 February 2023. Retrieved 18 November 2023.

External links

Wikimedia Commons has media related to NGC 7496.
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