NGC 2005

NGC 2005
NGC 2005 as seen by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationDorado
Right ascension05h 30m 08.5s
Declination−69° 45′ 14.42″
Distance162 kly (49.7 kpc)
Apparent magnitude (V)11.57
Apparent dimensions (V)1.6' × 1.6'
Physical characteristics
Mass170,000 - 560,000 M☉
Metallicity[Fe/H] = –1.92 dex
Estimated age13.8 ± 4.9 Gyr
Other designationsNGC 2005
See also: Globular cluster, List of globular clusters

NGC 2005 is a globular cluster located within the Large Magellanic Cloud in the constellation Dorado.

Compared to other globular clusters of the Large Magellanic Cloud, NGC 2005 has a notably different chemical composition, suggesting it belonged to another galaxy which merged with the LMC at some point in the past. However, this hypothesis has been disputed.

References

  1. 1 2 3 "NGC 2005". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 24 January 2025.
  2. ↑ Mackey*, A. D.; Gilmore, G. F. (2003-01-01). "Surface brightness profiles and structural parameters for 53 rich stellar clusters in the Large Magellanic Cloud". Monthly Notices of the Royal Astronomical Society. 338 (1): 85–119. arXiv:astro-ph/0209031. Bibcode:2003MNRAS.338...85M. doi:10.1046/j.1365-8711.2003.06021.x. ISSN 0035-8711.
  3. ↑ Suntzeff, Nicholas B.; Schommer, Robert A.; Olszewski, Edward W.; Walker, Alistair R. (1992-11-01). "Spectroscopy of giants in LMC clusters. III - Velocities and abundances for NGC 1841 and Reticulum and the properties of the metal-poor clusters". The Astronomical Journal. 104: 1743. Bibcode:1992AJ....104.1743S. doi:10.1086/116356.
  4. ↑ Wagner-Kaiser, R; Mackey, Dougal; Sarajedini, Ata; Cohen, Roger E; Geisler, Doug; Yang, Soung-Chul; Grocholski, Aaron J; Cummings, Jeffrey D (2018-03-11). "Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud – III. Horizontal branch morphology". Monthly Notices of the Royal Astronomical Society. 474 (4): 4358–4365. arXiv:1801.00006. doi:10.1093/mnras/stx3061. ISSN 0035-8711.
  5. ↑ "Hubble Captures a Cosmic Fossil - NASA". Retrieved 2025-01-26.
  6. ↑ Mucciarelli, A.; Massari, D.; Minelli, A.; Romano, D.; Bellazzini, M.; Ferraro, F. R.; Matteucci, F.; Origlia, L. (2021-10-18). "A relic from a past merger event in the Large Magellanic Cloud". Nature Astronomy. 5 (12): 1247–1254. arXiv:2110.10561. Bibcode:2021NatAs...5.1247M. doi:10.1038/s41550-021-01493-y. ISSN 2397-3366.
  7. ↑ Piatti, Andrés E.; Hirai, Yutaka (2023-04-25). "The Origin of the Large Magellanic Cloud Globular Cluster NGC 2005". The Astronomical Journal. 165 (5): 213. arXiv:2303.09259. Bibcode:2023AJ....165..213P. doi:10.3847/1538-3881/acc6d1. ISSN 1538-3881.