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NGC 5746 is a barred spiral galaxy located in the eastern part of the constellation of Virgo. It is a member of the NGC 5746 Group of galaxies, itself one of the Virgo III Groups strung out to the east of the Virgo Supercluster of galaxies.[4]

NGC 5746
NGC 5746 by the Liverpool Telescope
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension14h 44m 55.9s[1]
Declination+01° 57′ 18″[1]
Redshift1724 ± 10 km/s[1]
Distance99 Mly[2]
Apparent magnitude (V)11.0[1]
Characteristics
TypeSB(r)bc[3]
Apparent size (V)7′.4 × 1′.[1]
Other designations
UGC 9499,[1] PGC 52665[1]

Characteristics


NGC 5746 is located at a distance of 95 million light years[5] and is seen nearly edge-on, bearing a strong resemblance with the galaxy NGC 4565, that is also seen nearly edge-on.

Galaxy NGC 5746, by HST.
Galaxy NGC 5746, by HST.

As with the former, it has a box-shaped bulge that is actually a bar seen from one side[5] and a currently modest star formation activity.[6]

Investigations with the help of the x-ray space telescope Chandra seemed to detect a large cloud of gas surrounding NGC 5746 that was thought to be remnant gas of its formation in the process of being accreted;[7] however, later research has shown that cloud does not actually exist.[8]

Seen in the infrared, NGC 5746 also shows two pseudobulges, one nested within the other – that coincides with its central bar – as well as an inner ring with a radius of 9.1 kiloparsecs and a width of 1.6 kiloparsecs.[3]


References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 5746. Retrieved 2013-02-21.
  2. "Best distance estimate from Cosmic Flows 3 Individual Galaxy Info for UGC09499". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2 October 2021.
  3. Barentine, J. C.; Kormendy, J. (August 2012). "Two Pseudobulges in the "Boxy Bulge" Galaxy NGC 5746". The Astrophysical Journal. 754 (2, article id 140): 140. arXiv:1205.6876. Bibcode:2012ApJ...754..140B. doi:10.1088/0004-637X/754/2/140. S2CID 119298870.
  4. "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
  5. "Best of AOP: NGC 5746". NOAO. Retrieved 2013-02-21.
  6. Rasmussen, J.; Sommer-Larsen, J.; Pedersen, K.; Toft, S.; et al. (October 2006). "Investigating hot gas in the halos of two massive spirals: Observations and cosmological simulations". arXiv:astro-ph/0610893. Bibcode:2006astro.ph.10893R. {{cite journal}}: Cite journal requires |journal= (help)
  7. Pedersen, K.; Sommer-Larsen, J.; Rasmussen, J.; Toft, S.; et al. (May 2006). "Discovery of a very extended X-ray halo around a quiescent spiral galaxy The "missing link" of galaxy formation". New Astronomy. 11 (7): 465–470. arXiv:astro-ph/0511682. Bibcode:2006NewA...11..465P. doi:10.1016/j.newast.2005.11.004. S2CID 53473787.
  8. Pedersen, K.; Sommer-Larsen, J.; Rasmussen, J.; Toft, S.; et al. (2009). "Hot Gas Halos Around Disk Galaxies: Confronting Cosmological Simulations with Observations". The Astrophysical Journal. 697 (1): 79–93. arXiv:0903.0665. Bibcode:2009ApJ...697...79R. doi:10.1088/0004-637x/697/1/79. S2CID 17934428.




На других языках

[de] NGC 5746

NGC 5746 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBb im Sternbild Jungfrau am Nordsternhimmel. Sie ist schätzungsweise 77 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 170.000 Lichtjahren. Mit NGC 5740 bildet sie das gravitativ gebundene Galaxienpaar KPG 434 und zusammen sind sie Mitglieder der NGC 5746-Gruppe (LGG 386).
- [en] NGC 5746

[es] NGC 5746

NGC 5746 es una galaxia espiral intermedia en la constelación de Virgo a una distancia de 95 millones de años luz,[1] que puede verse con telescopios de aficionado. Forma parte de una agrupación de grupos de galaxias situados al este del Cúmulo de Virgo (Virgo III), siendo tal vez la galaxia más grande tanto del grupo de galaxias de su nombre cómo de las que forman parte de ellos.[2]

[ru] NGC 5746

NGC 5746 (другие обозначения — UGC 9499, MCG 0-38-5, ZWG 20.12, KCPG 434B, IRAS14424+0209, PGC 52665) — спиральная галактика с перемычкой (SBb) в созвездии Дева.


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