astro.wikisort.org - GalaxyThe Circinus Galaxy (ESO 97-G13) is a Seyfert galaxy[2] in the constellation of Circinus. It is located 4 degrees below the Galactic plane, and, at a distance of 4.0 Mpc (13 Mly), is one of the closest major galaxies to the Milky Way.[3] The galaxy is undergoing tumultuous changes, as rings of gas are likely being ejected from the galaxy.[citation needed] Its outermost ring is 1400 light-years across while the inner ring is 260 light-years across.[citation needed] Although the Circinus galaxy can be seen using a small telescope, it was not noticed until 1977[4] because it lies close to the plane of the Milky Way and is obscured by galactic dust. The Circinus Galaxy is a Type II Seyfert galaxy and is one of the closest known active galaxies to the Milky Way, though it is probably slightly farther away than Centaurus A.
Closest Seyfert Galaxy in the constellation Circinus
Circinus Galaxy |
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Constellation | Circinus |
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Right ascension | 14h 13m 9.9s[1] |
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Declination | −65° 20′ 21″[1] |
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Redshift | 426 ± 25 km/s |
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Distance | 4.0 Mpc [ 13 Mly ] |
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Apparent magnitude (V) | 12.1[1] |
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Type | SA(s)b[1] |
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Apparent size (V) | 6′.9 × 3′.0[1] |
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ESO 97-G13,[1] LEDA 50779 |
Circinus Galaxy produced supernova SN 1996cr, which was identified over a decade after it exploded. This supernova event was first observed during 2001 as a bright, variable object in a Chandra X-ray Observatory image, but it was not confirmed as a supernova until years later.
The Circinus Galaxy is one of twelve large galaxies in the "Council of Giants" surrounding the Local Group in the Local Sheet.[5] One object is possibly a satellite of the Circinus Galaxy, known as HIZOA J1353-58. HIZOA J1353-58 was discovered in a survey of neutral hydrogen (H I) and is located within the Zone of Avoidance.[6]
References
- "NASA/IPAC Extragalactic Database". Results for ESO 97-13. Retrieved 2007-04-20.
- "NAME Circinus Galaxy". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2007-04-20.
- Maiolino, R.; Krabbe, A.; Thatte, N.; Genzel, R. (1998). "Seyfert Activity and Nuclear Star Formation in the Circinus Galaxy". The Astrophysical Journal. 493 (2): 650–65. arXiv:astro-ph/9709091. Bibcode:1998ApJ...493..650M. doi:10.1086/305150.
- Inglis, Mike (2004). Astronomy of the Milky Way: Observer's Guide to the Southern Sky. New York, New York: Springer. p. 103. ISBN 978-1-85233-742-1.
- McCall, Marshall L. (29 April 2013). "A Council of Giants". Monthly Notices of the Royal Astronomical Society (published 10 March 2014). 440 (1): 405–426. arXiv:1403.3667. Bibcode:2014MNRAS.440..405M. doi:10.1093/mnras/stu199.
- Staveley-Smith, L.; Kraan-Korteweg, R. C.; Schröder, A. C.; Henning, P. A.; Koribalski, B. S.; Stewart, I. M.; Heald, G. (2016). "The Parkes H I Zone of Avoidance Survey". The Astronomical Journal. 151 (3): 52. arXiv:1602.02922. Bibcode:2016AJ....151...52S. doi:10.3847/0004-6256/151/3/52. S2CID 54665552.
External links
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Seyfert 1 |
- Arakelian 120
- Arakelian 564
- Arp 102B
- 3C 59
- ESO 141-055
- ESO 198-G24
- ESO 323-G077
- ESO 362-18
- Fairall 9
- Fairall 51
- H0557-385
- 1H 0419-577
- 1H 1707-495
- IC 3599
- IC 4329A
- IRAS 07598+6508
- IRAS 13224-3809
- IRAS 13349+1428
- Markarian 6
- Markarian 50
- Markarian 79
- Markarian 110
- Markarian 279
- Markarian 315
- Markarian 334
- Markarian 335
- Markarian 359
- Markarian 376
- Markarian 423
- Markarian 478
- Markarian 507
- Markarian 509
- Markarian 609
- Markarian 618
- Markarian 704
- Markarian 705
- Markarian 817
- Markarian 841
- Markarian 896
- Markarian 993
- Markarian 1018
- Markarian 1044
- Markarian 1239
- MCG -2-58-22
- MCG-6-30-15
- MGC +8-11-11
- Messier 81
- PG 1211+143
- PG 1244+026
- PG 1402+261
- PG 1404+226
- PKS 0558-504
- PMN J0948+0022
- RE J0134+396
- SBS 0846+513
- Ton S180
- I Zw 1
- III Zw 2
- III Zw 77
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Seyfert 2 |
- Circinus Galaxy
- ESO 103-G35
- ESO 428-G14
- IC 2560
- IC 3639
- IRAS 05189-2524
- IRAS 13197-1627
- IRAS 18325-5926
- IRAS 19014+4109
- IRAS F01475-0740
- Markarian 3
- Markarian 34
- Markarian 78
- Markarian 176
- Markarian 266 SW
- Markarian 273
- Markarian 463
- Markarian 477
- Markarian 573
- Markarian 1066
- Markarian 1210
- MCG-5-23-16
- Messier 77
- Messier 88
- Messier 106
- NGC 454E
- NGC 2788A
- NGC 4676B
- NGC 4922N
- Whirlpool Galaxy
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Circinus constellation |
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Stars (list) | Bayer | |
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Variable | |
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HR |
- 5194
- 5218
- 5242
- 5253
- 5293
- 5295
- 5320
- 5379
- 5382
- 5391
- 5408
- 5443
- 5465
- 5482
- 5486
- 5515
- 5546
- 5623
- 5632
- 5645
- 5661
- 5680
- 5700
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HD |
- 129092
- 129445
- 130021
- 130942
- 131491
- 133557
- 134657
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Other | |
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Star clusters | |
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Nebulae | |
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Galaxies | |
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На других языках
[de] Circinusgalaxie
Die Circinusgalaxie (PGC 50779) ist eine spiralförmige Typ-2-Seyfertgalaxie vom Hubble-Typ Sb im Sternbild Zirkel am Südsternhimmel. Sie ist die uns am nächsten stehende bekannte Aktive Galaxie und befindet sich gerade einmal 4 Grad unterhalb der Galaktischen Ebene und ist etwa 13 Millionen Lichtjahre von der Milchstraße entfernt.
- [en] Circinus Galaxy
[ru] Циркуль (галактика)
Циркуль (ESO 097-13) — галактика, находящаяся в созвездии Циркуль. Расположена 4 градусами ниже плоскости нашей Галактики; будучи удалённой от Земли на 13 млн световых лет, является одной из ближайших ко Млечному пути звёздных систем[4].
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