Andromeda XIX

Andromeda XIX is a satellite galaxy of the Andromeda Galaxy, and is part of the Local Group, like the Milky Way Galaxy.^[1] Andromeda XIX is said to be "the most extended dwarf galaxy known in the Local Group",^[2] and has a half-light radius of 1.7 kiloparsec (kpc).^[2] It was found by the Canada–France–Hawaii Telescope, and it is a dwarf galaxy.

History

The MegaPrime/MegaCam 1 deg2 (camera) on the Canada-France-Hawaii Telescope (CFHT) had mapped the M31 stellar halo (one quarter) up to ~150 kpc.^[3] The observation, which had proved the uneveness of Andromeda's stellar halo, had shown that multiple other dwarf galaxies exist.^[3] They are: Andromeda XI, XII, XIII, XV, XVI, XVIII, XIX, and XX.^[3]

Related pages

References

↑ Chart (Local Galaxies)University of Northern Iowa. Retrieved 18 April 2012.
↑ ^2.0 ^2.1 McConnachie, Alan W.. A trio of new local group galaxies with extreme properties. The Astrophysical Journal 688 (2) (2008). p. 1009–1020. doi:10.1086/591313.
↑ ^3.0 ^3.1 ^3.2 Martin, Nicolas F.. PAndAS' cubs: Discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies. The Astrophysical Journal 705 (1) (2009). p. 758–765. doi:10.1088/0004-637X/705/1/758.

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[1] Chart (Local Galaxies)University of Northern Iowa. Retrieved 18 April 2012.

[arxiv-2] 2.0 ^2.1 McConnachie, Alan W.. A trio of new local group galaxies with extreme properties. The Astrophysical Journal 688 (2) (2008). p. 1009–1020. doi:10.1086/591313.

[Dwarf-3] 3.0 ^3.1 ^3.2 Martin, Nicolas F.. PAndAS' cubs: Discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies. The Astrophysical Journal 705 (1) (2009). p. 758–765. doi:10.1088/0004-637X/705/1/758.

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