Astronomy:NGC 7079
| NGC 7079 | |
|---|---|
 Barred lenticular galaxy NGC 7079. | |
| Observation data (J2000 epoch) | |
| Constellation | Grus |
| Right ascension | 21h 32m 35.2s[1] |
| Declination | −44° 04′ 03″[1] |
| Redshift | 0.00895[1] |
| Helio radial velocity | 2,684 km/s[1] |
| Distance | 110.6 Mly |
| Apparent magnitude (V) | 11.6[1] |
| Characteristics | |
| Type | SB0^0(s), LINER[1] |
| Apparent size (V) | 2.1 x 1.3'[1] |
| Other designations | |
| ESO 287-36, AM 2129-441, MCG -7-44-22, PGC 66934[1] | |
NGC 7079 is a barred lenticular galaxy[2] located about 110.58 million light-years away[3] in the constellation of Grus.[4][5] NGC 7079 is also classified as a LINER galaxy.[3][5] It is tilted about 51° to the Earth's line of sight.[2] NGC 7079 was discovered by astronomer John Herschel on September 6, 1834.[4]
Physical characteristics
NGC 7079 has a faint cigar-shaped bar with ansae at the ends, and there is another very faint spiral structure surrounding it.[6][7] The rim of the disk also has a somewhat faint ring-like structure.[7]
Emission of doubly ionized oxygen gas
In NGC 7079, it has been indicated that there is a faint emission of doubly ionized oxygen. The ionized gas is rotating in the opposite direction of the stars in the galaxy. The counter-rotation has been attributed to the accretion of gas from outside of the galaxy.[2]
Group membership
NGC 7079 is a member of the NGC 7079 Group. The group, along with other nearby groups are part of the Pavo-Indus and Grus clouds of galaxies which form a connection between the Pavo–Indus and Virgo Superclusters. The other members of the NGC 7079 Group are NGC 7070, NGC 7070A, NGC 7097, NGC 7097A, ESO 287-37, ESO 287-39, ESO 287-41, and ESO 287-43.[8]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NASA/IPAC Extragalactic Database". Results for NGC 7079. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 2.2 Bettoni, D.; Galletta, G. (1997). "A survey of the stellar rotation in barred galaxies". Astronomy and Astrophysics Supplement Series 124: 61–74. doi:10.1051/aas:1997180. Bibcode: 1997A&AS..124...61B. https://aas.aanda.org/articles/aas/pdf/1997/10/ds1286.pdf.
- ↑ 3.0 3.1 Marino, A.; Rampazzo, R.; Bianchi, L.; Annibali, F.; Bressan, A.; Buson, L.M.; Clemens, M. S.; Panuzzo, P. et al. (9 September 2010). "Nearby early-type galaxies with ionized gas: the UV emission from GALEX observations". Monthly Notices of the Royal Astronomical Society 411 (1): 311–331. doi:10.1111/j.1365-2966.2010.17684.x. Bibcode: 2011MNRAS.411..311M. https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/mnras/411/1/10.1111_j.1365-2966.2010.17684.x/2/mnras0411-0311.pdf?Expires=1500529352&Signature=Gxwh~gTy~pmS4xiJSnmkmWAylkzu6eUcoqNGIx358Fs4rT~1Jfs-xNEz5~sppTCLdaJIZJ2NAMi~STdYTq3sB054RBgy6QpSzmJTNDQLt77DKKmeBu7apUx5roDKhW~aP3gKE1PpSfTisYNLxLUxOSNJstxNFcsK9NazRZ7FFQK-n~7mupJG~UzHvojpF1yQvEfmi6V2oFrgNgcKeXTEidfhDZdWihtwCejWNaS2S73f0ZZuWmJsiA9mBu553fA2FRsoRKgMjngDOWGoNKC~38THlaYaBPojkTF1aq9m0CIWc~3LIKI9hPhaVgJnEAUBqINltHNugcEQC4LLS8Yc1A__&Key-Pair-Id=APKAIUCZBIA4LVPAVW3Q.
- ↑ 4.0 4.1 "New General Catalog Objects: NGC 7050 - 7099" (in en-US). http://cseligman.com/text/atlas/ngc70a.htm#7051.
- ↑ 5.0 5.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+7079&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "Detailed Object Classifications". https://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+7079.
- ↑ 7.0 7.1 "NGC 7079 - (RL)SB(s)0o". http://kudzu.astr.ua.edu/devatlas/NGC_7079______Ks__________.html.
- ↑ Fouque, P.; Proust, D.; Quintana, H.; Ramirez, A. (30 September 1993). "Dynamics of the Pavo-Indus and Grus clouds of galaxies". Astronomy and Astrophysics Supplement Series 100: 493–500. Bibcode: 1993A&AS..100..493F. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993A%26AS..100..493F&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.
External links
- NGC 7079 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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