NGC 3840

Last updated
NGC 3840
SDSS NGC 3840.jpg
SDSS image of NGC 3840
Observation data (J2000 epoch)
Constellation Leo
Right ascension 11h 43m 58.9s [1]
Declination 20° 04′ 37″ [1]
Redshift 0.024590 [1]
Heliocentric radial velocity 7372 km/s [1]
Distance 318  Mly (97.5  Mpc) [1]
Group or cluster Leo Cluster
Apparent magnitude  (V)14.54 [1]
Characteristics
Type Sa [1]
Size~105,400  ly (32.32  kpc) (estimated) [1]
Apparent size  (V)1.1 x 0.8 [1]
Other designations
CGCG 97-91, IRAS 11413+2021, MCG 3-30-70, PGC 36477, UGC 6702 [1]

NGC 3840 is a spiral galaxy [2] located about 320 million light-years away [3] in the constellation Leo. [4] The galaxy was discovered by astronomer Heinrich d'Arrest on May 8, 1864. [5] NGC 3840 is a member of the Leo Cluster. [6] [7] [8] The galaxy is rich in neutral atomic hydrogen (H I) and is not interacting with its environment. [9]

Contents

NGC 3840 is likely to be a low-luminosity AGN (LLAGN). [10]

See also

Related Research Articles

<span class="mw-page-title-main">NGC 7014</span> Galaxy in the constellation Indus

NGC 7014 is an elliptical galaxy located about 210 million light-years away from Earth in the constellation Indus. NGC 7014 was discovered by English astronomer John Herschel on October 2, 1834. A population of around 1,634 known globular clusters surround the galaxy, and it is also host to a supermassive black hole with an estimated mass of 2.6 × 109M☉. NGC 7014 is also classified as a type 1 seyfert galaxy.

<span class="mw-page-title-main">NGC 4606</span> Spiral galaxy in the constellation Virgo

NGC 4606 is a spiral galaxy located about 55 million light-years away in the constellation of Virgo. NGC 4606 was discovered by astronomer William Herschel on March 15, 1784. It has a disturbed stellar disk suggesting the actions of gravitational interactions. NGC 4607 may be a possible companion of NGC 4606. However, their redshifts differ by about 600 km/s, making it unlikely that they are a gravitationally bound pair. NGC 4606 is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4476</span> Galaxy in the constellation of Virgo

NGC 4476 is a lenticular galaxy located about 55 million light-years away in the constellation Virgo. NGC 4476 was discovered by astronomer William Herschel on April 12, 1784. The galaxy is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 3821</span> Spiral galaxy in the constellation Leo

NGC 3821 is a low surface brightness spiral galaxy and a ring galaxy about 270 million light-years away in the constellation Leo. The galaxy was discovered by astronomer William Herschel on April 26, 1785 and is a member of the Leo Cluster.

<span class="mw-page-title-main">NGC 3844</span> Galaxy in the constellation Leo

NGC 3844 is a lenticular galaxy located about 320 million light-years away in the constellation Leo. The galaxy was discovered by astronomer Heinrich d'Arrest on May 8, 1864. NGC 3844 is a member of the Leo Cluster and is likely to be a low-luminosity AGN (LLAGN).

<span class="mw-page-title-main">NGC 3845</span> Galaxy in the constellation Leo

NGC 3845 is a barred lenticular galaxy located about 270 million light-years away in the constellation Leo. NGC 3845 was discovered by astronomer John Herschel on March 17, 1831. It is a member of the Leo Cluster and is likely to be a low-luminosity AGN (LLAGN).

<span class="mw-page-title-main">NGC 3860</span> Spiral galaxy in the constellation Leo

NGC 3860 is a spiral galaxy located about 340 million light-years away in the constellation Leo. NGC 3860 was discovered by astronomer William Herschel on April 27, 1785. The galaxy is a member of the Leo Cluster and is a low-luminosity AGN (LLAGN). Gavazzi et al. however classified NGC 3860 as a strong AGN which may have been triggered by a supermassive black hole in the center of the galaxy.

<span class="mw-page-title-main">NGC 3861</span> Galaxy in the constellation Leo

NGC 3861 is a large barred spiral galaxy with a ring-like structure located about 310 million light-years away in the constellation Leo. It was discovered by astronomer John Herschel on March 23, 1827. NGC 3861 is a member of the Leo Cluster and has a normal amount of neutral hydrogen and ionised hydrogen.

<span class="mw-page-title-main">NGC 3883</span> Galaxy in the constellation Leo

NGC 3883 is a large low surface brightness spiral galaxy located about 330 million light-years away in the constellation Leo. NGC 3883 has a prominent bulge but does not host an AGN. The galaxy also has flocculent spiral arms in its disk. It was discovered by astronomer William Herschel on April 13, 1785 and is a member of the Leo Cluster.

<span class="mw-page-title-main">NGC 3884</span> Spiral galaxy in the constellation Leo

NGC 3884 is a spiral galaxy located about 330 million light-years away in the constellation Leo. The galaxy was discovered by astronomer William Herschel on April 27, 1785 and is a member of the Leo Cluster.

<span class="mw-page-title-main">NGC 4212</span> Galaxy in the constellation Coma Berenices

NGC 4212 is a flocculent spiral galaxy with LINER activity 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 was listed in the NGC catalog as NGC 4208. He then observed the same galaxy and listed it as NGC 4212. Astronomer John Louis Emil Dreyer later concluded that NGC 4208 was identical to NGC 4212. NGC 4212 is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4222</span> Edge-on spiral galaxy in the constellation Coma Berenices

NGC 4222 is an edge-on spiral galaxy located about 60 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 8, 1784 and is often misidentified as IC 3087. NGC 4222 is a member of the Virgo Cluster and is a companion of NGC 4216 which lies about 180,000 ly (56 kpc) away. Despite this, the two galaxies are not interacting.

<span class="mw-page-title-main">NGC 4237</span> Galaxy in the constellation Coma Berenices

NGC 4237 is a flocculent spiral galaxy located about 60 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on December 30, 1783 and is a member of the Virgo Cluster. It is also classified as a LINER galaxy and as a Seyfert galaxy.

<span class="mw-page-title-main">NGC 714</span> Galaxy in constellation Andromeda

NGC 714 is a lenticular galaxy located 190 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer Bindon Blood Stoney on October 28, 1850 and is a member of Abell 262.

<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 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 4312</span> Galaxy in the constellation Coma Berenices

NGC 4312 is an edge-on unbarred spiral galaxy located about 55 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on January 14, 1787. NGC 4312 is a member of the Virgo Cluster and is 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 4 5 6 7 8 9 10 "NASA/IPAC Extragalactic Database". Results for NGC 3840. Retrieved 2018-07-12.
  2. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-07-12.
  3. ↑ "NED Query Results for NGC 3840". ned.ipac.caltech.edu. Retrieved 2018-07-12.
  4. ↑ "Revised NGC Data for NGC 3840". spider.seds.org. Retrieved 2018-07-12.
  5. ↑ "New General Catalog Objects: NGC 3800 - 3849". cseligman.com. Retrieved 2018-07-09.
  6. ↑ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2018-07-12.
  7. ↑ "NGC 3840" . Retrieved 2018-07-12.
  8. ↑ "Hierarchy catalogue". leda.univ-lyon1.fr. Retrieved 2018-07-12.
  9. ↑ Scott, T. C.; Bravo-Alfaro, H.; Brinks, E.; Caretta, C. A.; Cortese, L.; Boselli, A.; Hardcastle, M. J.; Croston, J. H.; Plauchu, I. (2010-04-11). "Probing evolutionary mechanisms in galaxy clusters: neutral atomic hydrogen in Abell 1367". Monthly Notices of the Royal Astronomical Society. 403 (3): 1175–1192. arXiv: 1001.3900 . Bibcode:2010MNRAS.403.1175S. doi: 10.1111/j.1365-2966.2009.16204.x . ISSN   0035-8711. S2CID   17147621.
  10. ↑ Sun, M.; Vikhlinin, A.; Forman, W.; Jones, C.; Murray, S. S. (2005). "The Survival and Destruction of X-Ray Coronae of Early-Type Galaxies in Rich Cluster Environments: A Case Study of A1367". The Astrophysical Journal. 619 (1): 169–177. arXiv: astro-ph/0408425 . Bibcode:2005ApJ...619..169S. doi:10.1086/425298. ISSN   0004-637X. S2CID   16811452.


This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.