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Searching for dark galaxies: the AGES VC2 region

Taylor, R., Auld, Robbie Richard, Cortese, Luca, Davies, Jonathan Ivor and Minchin, Robert Frank 2007. Searching for dark galaxies: the AGES VC2 region. Proceedings of the International Astronomical Union 3 (S244) , pp. 389-390. 10.1017/S174392130701441X

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The VC2 strip (part of the AGES blind HI survey) spans 5x1 degrees of the Virgo Cluster, from the outskirts of the cluster to its interior. The strip covers part of subcluster A while avoiding the strong continuum source M87. 40 hours of observations were taken in January-February 2007 using the ALFA instrument on the Arecibo telescope, reaching a noise level as low as 0.5 mJy. For a 200 km/s velocity width, this gives a sensitivity limit of 6*10(6) Msolar at the Virgo distance (16 Mpc). Currently, 36 definite sources have been found, both by eye and with the automatic extractor Polyfind, with an additional 12 requiring follow-up observations, found only by one method.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Dark galaxies; Virgo; high velocity clouds
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 21/02/2014).
Publisher: Cambridge University Press
ISSN: 1743-9213
Date of First Compliant Deposit: 30 March 2016
Last Modified: 10 Oct 2017 14:37

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