NGC 3741

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NGC 3741
NGC 3741.png
Hubble Space Telescope image of NGC 3741
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 11h 36m 05s [1]
Declination +45° 17′ 02″ [1]
Redshift 0.000764 [2]
Helio radial velocity 229 ± 4 km/s [2]
Distance 10  Mly (3.2  Mpc) [3]
Apparent magnitude  (V)14.23 [1]
Apparent magnitude  (B)14.55 [1]
Characteristics
Type ImIII/BCD [2]
Other designations
NGC 3741, UGC 6572, MCG +08-21-068, PGC 35878, SDSS J113605.75+451702.9 [1]

NGC 3741 is an irregular galaxy in the constellation Ursa Major. It was discovered by John Herschel on March 19, 1828. [4] At a distance of about 10 million light-years (3.2 Mpc), it is located in the M94 Group. [3] It is relatively undisturbed by other galaxies. [3]

NGC 3741 is an unusual galaxy in several aspects. It has a disk of neutral hydrogen (H I) that is extremely wide, extending some 23,000 light-years (7 kpc). The disk is strongly but symmetrically warped. [5] With a mass-to-light ratio of MT/LB ~ 149, it is highly rich in dark matter. [6]

NGC 3741 has a central bar and a faint spiral arm rich in H I. The bar rotates slowly, likely due to interaction with the dark matter. [7] The bar and spiral arms would make NGC 3741 a low-luminosity spiral galaxy. [3] The unusual properties could be explained if NGC 3741 were a late-stage merger between a low-mass companion or if it accreted mass from the intergalactic medium. [3]

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

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<span class="mw-page-title-main">NGC 4306</span> Dwarf barred lenticular galaxy in the constellation Virgo

NGC 4306 is a dwarf barred lenticular galaxy located about 100 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer Heinrich d'Arrest on April 16, 1865. Although considered to be a member of the Virgo Cluster, its high radial velocity and similar distance as NGC 4305 suggest that NGC 4306 is a background galaxy. NGC 4306 is a companion of NGC 4305 and appears to be interacting with it.

<span class="mw-page-title-main">NGC 4312</span> Galaxy in the constellation Coma Berenices

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<span class="mw-page-title-main">NGC 4313</span> Spiral galaxy in the constellation Virgo

NGC 4313 is an edge-on spiral galaxy located about 50 million light-years away in the constellation Virgo. It was discovered by astronomer William Herschel on March 15, 1784. NGC 4313 is a member of the Virgo Cluster and is classified as LINER and as a Seyfert galaxy.

<span class="mw-page-title-main">NGC 4324</span> Lenticular 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.

<span class="mw-page-title-main">NGC 4393</span> Spiral galaxy in the constellation of Coma Berenices

NGC 4393 is a spiral galaxy about 46 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 11, 1785. It is a member of the NGC 4274 Group, which is part of the Coma I Group or Cloud.

References

  1. 1 2 3 4 5 "NGC 3741". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 22 May 2019.
  2. 1 2 3 "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2018-12-27.
  3. 1 2 3 4 5 Annibali, F.; Bacchini, C.; Iorio, G.; Bellazzini, M.; Pascale, R.; Beccari, G.; Cignoni, M.; Ciotti, L.; Nipoti, C.; Sacchi, E.; Tosi, M.; Cusano, F.; Bisogni, S.; Gargiulo, A.; Paris, D. (2022). "The Smallest Scale of Hierarchy Survey (SSH) – II. Extended star formation and bar-like features in the dwarf galaxy NGC 3741: Recent merger or ongoing gas accretion?". Monthly Notices of the Royal Astronomical Society. 512 (2): 1781–1794. arXiv: 2202.11734 . Bibcode:2022MNRAS.512.1781A. doi:10.1093/mnras/stac541.
  4. ↑ Seligman, Courtney. "New General Catalog Objects: NGC 3700 - 3749". cseligman.com. Retrieved 23 May 2019.
  5. ↑ Gentile, G.; Salucci, P.; Klein, U.; Granato, G. L. (2007). "NGC 3741: The dark halo profile from the most extended rotation curve". Monthly Notices of the Royal Astronomical Society. 375 (1): 199–212. arXiv: astro-ph/0611355 . Bibcode:2007MNRAS.375..199G. doi:10.1111/j.1365-2966.2006.11283.x. S2CID   18818325.
  6. ↑ Begum, Ayesha; Chengalur, Jayaram N.; Kennicutt, Robert C.; Karachentsev, Igor D.; Lee, Janice C. (2007). "Life in the last lane: Star formation and chemical evolution in an extremely gas rich dwarf". Monthly Notices of the Royal Astronomical Society. 383 (2): 809–816. arXiv: 0711.1588 . Bibcode:2008MNRAS.383..809B. doi:10.1111/j.1365-2966.2007.12592.x. S2CID   16348749.
  7. ↑ Banerjee, Arunima; Patra, Narendra Nath; Chengalur, Jayaram N.; Begum, Ayesha (2013). "A slow bar in the dwarf irregular galaxy NGC 3741". Monthly Notices of the Royal Astronomical Society. 434 (2): 1257–1263. arXiv: 1308.3029 . Bibcode:2013MNRAS.434.1257B. doi:10.1093/mnras/stt1083.
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