World Library  
Flag as Inappropriate
Email this Article

Sculptor Dwarf Galaxy

Article Id: WHEBN0001244481
Reproduction Date:

Title: Sculptor Dwarf Galaxy  
Author: World Heritage Encyclopedia
Language: English
Subject: Local Group, Satellite galaxies of the Milky Way, Sculptor (constellation), Sculptor (disambiguation), Milky Way Subgroup
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Sculptor Dwarf Galaxy

Sculptor Dwarf Elliptical Galaxy
Observation data (J2000 epoch)
Constellation Sculptor
Right ascension 01h 00m 09.3s[1]
Declination −33° 42′ 33″[1]
Redshift 110 ± 1 km/s[1]
Distance 290 ± 30 kly (90 ± 10 kpc)[2][3]
Type E[1]
Apparent dimensions (V) 39′.8 × 30′.9[1]
Apparent magnitude (V) 10.1[1]
Other designations
Sculptor Dwarf Spheroidal,[1] PGC 3589,[1] MCG-06-03-015

The Sculptor Dwarf Galaxy (also called the Sculptor Dwarf Elliptical Galaxy or the Sculptor Dwarf Spheroidal Galaxy) is a dwarf spheroidal galaxy that is a satellite of the Milky Way. The galaxy lies within the constellation Sculptor. It was discovered in 1937 by Harlow Shapley using the 24-inch Bruce refractor at Boyden Observatory.[4][5] The galaxy is located about 290,000 light-years away from the Solar System. The Sculptor Dwarf contains only 4 percent of the carbon and other heavy elements in our own galaxy, the Milky Way, making it similar to primitive galaxies seen at the edge of the universe.[6]

Contents

  • Metallicity 1
  • Gallery 2
  • References 3
  • External links 4

Metallicity

The metallicity of Sculptor dwarf appears to be broken up into two distinct groups, one with [Fe/H] = -2.3 and the other with [Fe/H] = -1.5.[7] Similar to many of the other Local Group galaxies, the older metal-poor segment appears more extended than the younger metal-rich segment.[8]

Gallery

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for PGC 3589. Retrieved 2006-12-03. 
  2. ^ I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal (abstract) 128 (4): 2031–2068.  
  3. ^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics 49 (1): 3–18.  
  4. ^ Shapley, H., (1938) Harvard Bull. 908.
  5. ^ Shapley H (1938). "Two Stellar Systems of a New Kind". Nature 142 (3598): 715–6.  
  6. ^ Astronomers Detect Dust Around a Primitive Star, Shedding New Light on Universe’s Origins Newswise, Retrieved on January 19, 2008.
  7. ^ S.R. Majewski; et al. (20 July 1999). "An Internal Second-Parameter Problem in the Sculptor Dwarf Spheroidal Galaxy". The Astrophysical Journal 520 (1).  
  8. ^  
  9. ^ "Sculptor Dwarf Galaxy". Retrieved 17 September 2015. 

External links

  • The Sculptor Dwarf Galaxy on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.