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NGC 3608 is an elliptical galaxy located in the constellation Leo. It was discovered by William Herschel on March 14, 1784.[4]

NGC 3608
SDSS image of NGC 3608
Observation data (J2000 epoch)
ConstellationLeo
Right ascension11h 16m 58.967s[1]
Declination+18° 08′ 54.71″[1]
Redshift0.003959[2]
Helio radial velocity1185 ± 46 km/s[2]
Distance73 Mly (22.3 Mpc)[3]
Group or clusterLeo II group
Apparent magnitude (V)10.76[3]
Apparent magnitude (B)11.7[2]
Absolute magnitude (V)−20.98[3]
Characteristics
TypeE1-2[3]
Other designations
UGC 6299, MCG +03-29-022, PGC 34433[2]

NGC 3608 is part of the Leo II Group of galaxies, including NGC 3605 and NGC 3607. It is approximately 13.0 billion years old. There is diffuse X-ray emission coming from this galaxy and NGC 3607, which suggests that the two may be merging.[3]

NGC 3608 has a significant population of globular clusters. The population distribution is bimodal, with "red" and "blue" populations; the blue globular clusters form a majority. The blue globular clusters have a more extended distribution throughout the galaxy. Overall, the globular clusters are aligned along an axis that is not the same as the rest of the stars, which may be further evidence of galaxy interaction with NGC 3607.[3]

A large structure of neutral hydrogen gas known as an H I region, about 130,000 light-years (40 kpc) across, exists some twelve arcminutes (corresponding to about 230,000 light-years, or 70 kpc) away from NGC 3608. It may be associated with the galaxy.[5]


References


  1. Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131: 1163–1183. doi:10.1086/498708. ISSN 0004-6256.
  2. "NGC 3608". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-08-26.
  3. Kartha, Sreeja S.; Forbes, Duncan A.; Alabi, Adebusola B.; Brodie, Jean P.; Romanowsky, Aaron J.; Strader, Jay; Spitler, Lee R.; Jennings, Zachary G.; Roediger, Joel C. (2016). "The SLUGGS survey: Exploring the globular cluster systems of the Leo II group and their global relationships". Monthly Notices of the Royal Astronomical Society. 458: 105–126. arXiv:1602.01838. doi:10.1093/mnras/stw185.
  4. Seligman, Courtney. "New General Catalogue objects: NGC 3600 - 3649". cseligman.com. Retrieved 2021-08-26.
  5. Oosterloo, Tom; Morganti, Raffaella; Crocker, Alison; Jütte, Eva; Cappellari, Michele; De Zeeuw, Tim; Krajnović, Davor; McDermid, Richard; Kuntschner, Harald; Sarzi, Marc; Weijmans, Anne-Marie (2010). "Early-type galaxies in different environments: An H i view". Monthly Notices of the Royal Astronomical Society. 409 (2): 500–514. arXiv:1007.2059. doi:10.1111/j.1365-2966.2010.17351.x. S2CID 2119031.


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На других языках

[de] NGC 3608

NGC 3608 ist ein Elliptische Galaxie mit aktivem Galaxienkern vom Hubble-Typ E2 im Sternbild Löwe auf der Ekliptik. Sie ist schätzungsweise 52 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 50.000 Lichtjahren. Gemeinsam mit NGC 3605 und NGC 3607 bildet sie das Galaxientrio Holm 240. Zusammen mit elf weiteren Galaxien gilt sie als Mitglied der NGC 3686-Gruppe (LGG 237).
- [en] NGC 3608

[ru] NGC 3608

NGC 3608 (другие обозначения — UGC 6299, MCG 3-29-22, ZWG 96.22, KCPG 278B, PGC 34433) — эллиптическая галактика (E2) в созвездии Лев.


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