NGC 5774
| NGC 5774 | |
|---|---|
 NGC 5774 (NASA/ESA HST) | |
| Observation data (J2000.0 epoch) | |
| Constellation | Virgo |
| Right ascension | 14h 53m 42.46s [1] |
| Declination | +03° 34′ 56.96″ [1] |
| Redshift | 0.005187 [1] |
| Heliocentric radial velocity | 1555 ± 2 km/s [1] |
| Distance | 71 Mly [1] |
| Apparent magnitude (V) | 12.30 [2] |
| Apparent magnitude (B) | 13.00 [2] |
| Characteristics | |
| Type | SAB(rs)d [1] |
| Apparent size (V) | 1.9 x 1.12 [1] |
| Other designations | |
| PGC 53231, MCG 1-38-13, UGC 9576 | |
NGC 5774 is an intermediate spiral galaxy approximately 71 million light-years away from Earth in the constellation of Virgo.[1] It was discovered by Irish engineer Bindon Stoney on April 26, 1851.[3]
NGC 5774 belongs to a small group of galaxies, together with nearby NGC 5775 and IC 1070.[4] It has been classified as a "low surface brightness" (LSB) galaxy, but its central surface brightness is 5 times brighter than the brightest LSB galaxies.[4][5] It has a multiple spiral pattern with bright blue knotty structure all along the arms.[6]
It is an extremely low star forming galaxy with five X-ray sources plus three ultraluminous X-ray source candidates.[7]
Interaction with NGC 5775
NGC 5774 is interacting with the nearby spiral galaxy NGC 5775 in the form of two connecting H I bridges through which the gas is travelling from NGC 5774 to NGC 5775.[4] Faint optical emission, as well as radio continuum emission, are also present along the bridges.[5] It is possible that star formation is occurring between the galaxies.[4]
This system may be in the early stages of a merger.[5]
See also
- Intermediate spiral galaxy
- Low-surface-brightness galaxy
- List of NGC objects (5001–6000)
- Virgo (constellation)
External links
- NGC 5774 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
References
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved December 5, 2017.
- ^ a b "Revised NGC Data for NGC 5774". spider.seds.org. Retrieved December 9, 2017.
- ^ "Data for NGC 5774". www.astronomy-mall.com. Retrieved December 9, 2017.
- ^ a b c d Irwin, Judith; Caron, Bryan (2003). "The NGC 5775/4 Interacting System". In Shlosman, Isaac (ed.). Mass-Transfer Induced Activity in Galaxies. Cambridge University Press. p. 362.
{{cite book}}: Cite has empty unknown parameter:|lastauthoramp=(help); External link in|chapterurl=|chapterurl=ignored (|chapter-url=suggested) (help) - ^ a b c Irwin, Judith A. (1994). "Arcs and bridges in the interacting galaxies NGC 5775/NGC 5774". The Astrophysical Journal. 429 (2): 618–633. Bibcode:1994ApJ...429..618I. doi:10.1086/174349.
- ^ "NASA/IPAC Extragalactic Database - Notes for object NGC 5774". ned.ipac.caltech.edu. Retrieved December 5, 2017.
- ^ Ghosh, Kajal K.; et al. (2009). "Multiwavelength study of the bright X-ray source population in the interacting galaxies NGC 5774/NGC 5775". The Astronomical Journal. 137 (2): 3263–3285. arXiv:0810.5393. Bibcode:2002ApJ...566..667R. doi:10.1088/0004-6256/137/2/3263.