NGC 1079

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NGC 1079
NGC 1079 legacy dr10.jpg
Observation data (J2000 epoch)
Right ascension 02h 43m 44.3s [1]
Declination −29° 00′ 12″ [1]
Redshift 0.004843 ± 0.000017 km/s [2]
Distance ~61,5 Mly [2]
(18.8 ± 1.3 Mpc)
Apparent magnitude  (V)11.5 [2]
Apparent magnitude  (B)12.4 [2]
Surface brightness 14.4 mag/arcmin2 [2]
Characteristics
Apparent size  (V)5.50 x 3.1 arcmin [2]
Other designations
ESO 416-13, MCG -5-7-17, IRAS02415-2913, PGC 10330

NGC 1079 is an isolated, weakly barred, grand-design spiral galaxy with transitional ring-like structures [3] containing a number of prominent A type stars. [1] It is located in the Fornax constellation and is part of the Eridanus supercluster. [4] It was first observed and catalogued by the astronomer John Herschel in 1835. [5]

Contents

Characteristics

NGC 1079 has unique characteristics when compared to other galaxies with a similar luminosity. Its H l content per unit blue luminosity is three times higher. Its mass and rotation velocity is twice as large as normal and it has a low surface brightness in its spiral arms, exterior to a high surface brightness center dominated by old stars. A study [6] suggests these characteristics occur due to a luminous matter deficiency relative to its dynamical mass within the Holmberg radius.

Ring structure and star formation

Astronomers first identified NGC 1079's ring structure in 1996 by studying its HST ultraviolet imaging. [7] Later studies have shown virtually all the star-formation activity in this galaxy occurs inside the ring. [8]

See also

Other galaxies with star-forming rings include:

Related Research Articles

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<span class="mw-page-title-main">NGC 4061</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4065</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4066</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4072</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4074</span> Galaxy in the constellation Coma Berenices

NGC 4074 is a peculiar lenticular galaxy located 310 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 27, 1785 and is a member of the NGC 4065 Group.

<span class="mw-page-title-main">NGC 4076</span> Galaxy in the constellation Coma Berenices

NGC 4076 is a spiral galaxy located 290 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 27, 1785 and is a member of the NGC 4065 Group.

<span class="mw-page-title-main">NGC 4090</span> Galaxy in the constellation Coma Berenices

NGC 4090 is a spiral galaxy located 340 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer Heinrich d'Arrest on May 2, 1864 and is a member of the NGC 4065 Group.

<span class="mw-page-title-main">NGC 4092</span> Galaxy in the constellation Coma Berenices

NGC 4092 is a spiral galaxy located 310 million light-years away in the constellation Coma Berenices. It was discovered by astronomer Heinrich d'Arrest on May 2, 1864. NGC 4092 is a member of the NGC 4065 Group and hosts an AGN.

<span class="mw-page-title-main">NGC 4098</span> Interacting galaxies in the constellation Coma Berenices

NGC 4098 is an interacting pair of spiral galaxies located 330 million light-years away in the constellation Coma Berenices. NGC 4098 was discovered by astronomer William Herschel on April 26, 1785. It was then rediscovered by Hershel on December 27, 1786 was listed as NGC 4099. NGC 4098 is a member of the NGC 4065 Group.

<span class="mw-page-title-main">NGC 4294</span> Galaxy in the constellation Virgo

NGC 4294 is a barred spiral galaxy with flocculent spiral arms located about 55 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4298</span> Galaxy in the constellation Coma Berenices

NGC 4298 is a flocculent spiral galaxy located about 53 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 8, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4299</span> Spiral galaxy in the constellation Virgo

NGC 4299 is a featureless spiral galaxy located about 55 million light-years away in the constellation Virgo. It was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4302</span> Galaxy in the constellation Coma Berenices

NGC 4302 is an edge-on spiral galaxy located about 55 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 8, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4307</span> Spiral galaxy in the constellation Virgo

NGC 4307 is an edge-on spiral galaxy located about 65 million light-years away in the constellation Virgo. It was discovered by astronomer Christian Peters in 1881 and is a member of the Virgo Cluster. It is also a LINER galaxy.

<span class="mw-page-title-main">NGC 4324</span> Galaxy in the constellation of Virgo

NGC 4324 is a lenticular galaxy located about 85 million light-years away in the constellation Virgo. It was discovered by astronomer Heinrich d'Arrest on March 4, 1862. NGC 4324 has a stellar mass of 5.62 × 1010M☉, and a baryonic mass of 5.88 × 1010M☉. The galaxy's total mass is around 5.25 × 1011M☉. NGC 4324 is notable for having a ring of star formation surrounding its nucleus. It was considered a member of the Virgo II Groups until 1999, when its distance was recalculated and it was placed in the Virgo W Group.

References

  1. 1 2 3 "NED search result for NGC 1079". ned.ipac.caltech.edu. Retrieved 2023-11-28.
  2. 1 2 3 4 5 6 "SEDS search result for NGC 1079". spider.seds.org. Retrieved 2023-11-28.
  3. ↑ de Vaucouleurs, G. (1963-04-01). "Revised Classification of 1500 Bright Galaxies". The Astrophysical Journal Supplement Series. 8: 31. doi:10.1086/190084. ISSN   0067-0049.
  4. ↑ Brough, S.; Forbes, D. A.; Kilborn, V. A.; Couch, W.; Colless, M. (2006-07-01). "Eridanus - a supergroup in the local Universe?". Monthly Notices of the Royal Astronomical Society. 369 (3): 1351–1374. arXiv: astro-ph/0603778 . doi: 10.1111/j.1365-2966.2006.10387.x . ISSN   0035-8711.
  5. ↑ "New General Catalog Objects: NGC 1050 - 1099". cseligman.com. Retrieved 2023-11-29.
  6. ↑ Gallagher, J. S.; Bushouse, H. (1983-01-01). "Optical studies of HI-rich southern galaxies. II. The low- visibility spiral NGC 1079". The Astronomical Journal. 88: 55–61. doi: 10.1086/113286 . ISSN   0004-6256.
  7. ↑ Maoz, D.; Barth, A. J.; Sternberg, A.; Filippenko, A. V.; Ho, L. C.; Macchetto, F. D.; Rix, H. -W.; Schneider, D. P. (1996-06-01). "Hubble Space Telescope Ultraviolet Images of Five Circumnuclear Star-Forming Rings". The Astronomical Journal. 111: 2248. arXiv: astro-ph/9604012 . doi:10.1086/117960. ISSN   0004-6256.
  8. ↑ Böker, Torsten; Falcón-Barroso, Jesús; Schinnerer, Eva; Knapen, Johan H.; Ryder, Stuart (2008-02-01). "A SINFONI View of Galaxy Centers: Morphology and Kinematics of Five Nuclear Star Formation-Rings". The Astronomical Journal. 135: 479–495. arXiv: 0710.4036 . doi: 10.1088/0004-6256/135/2/479 . ISSN   0004-6256.
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