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Stellar overdensities in the halo: the extent of the Virgo overdensity

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Date

2009

Authors

Keller, Stefan
Da Costa, Gary
Prior, Sayuri

Journal Title

Journal ISSN

Volume Title

Publisher

Blackwell Publishing Ltd

Abstract

We map the three-dimensional extent of the Virgo overdensity by combining distance information from RR Lyrae variables and projected spatial information from the Southern Edgeworth-Kuiper Belt Object Survey and Sloan Digital Sky Survey Data Release 6 photometry. The Virgo overdensity is seen to comprise two filaments and 10° × 3°, and a circular structure 3° in diameter. Together, the three features span 38° of right ascension and declinations of 2° to -15°. RR Lyrae variables place the two filamentary features at heliocentric distances of 20 and 17 kpc, respectively, with projected dimensions of 5 × 1 and 3 × 1 kpc.

Description

Keywords

Keywords: Galaxy: halo; Galaxy: structure

Citation

URI

http://hdl.handle.net/1885/23641

Collections

ANU Research Publications

Source

Monthly Notices of the Royal Astronomical Society

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1111/j.1365-2966.2009.14393.x

Restricted until

2037-12-31

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01_Keller_Stellar_overdensities_in_the_2009.pdf (693.43 KB)

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