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The Southern Sky Survey

Title
The Southern Sky Survey
Funding
ARC | Discovery Projects
Contract (GA) number
DP0343962
Start Date
2003/01/01
End Date
2007/12/31
Open Access mandate
no
Organizations
-
More information
http://purl.org/au-research/grants/arc/DP0343962

 

  • The Chemistry of the Trailing arm of the Sagittarius Dwarf Galaxy

    Keller, Stefan C.; Yong, David; Da Costa, Gary S. (2010)
    Projects: ARC | The Southern Sky Survey (DP0343962), ARC | The Southern Sky Survey (DP0878137)
    We present abundances of C, O, Ti, and Fe for eleven M-giant stars in the trailing tidal arm of the Sagittarius dwarf (Sgr). The abundances were derived by comparing synthetic spectra with high-resolution infrared spectra obtained with the Phoenix spectrograph on the Gemini South telescope. The targeted stars are drawn from two regions of the Sgr trailing arm separated by 66 degrees (5 stars) and 132 degrees (6 stars) from the main body of Sgr. The trailing arm provides a more direct diagnost...

    Stellar Over-densities in the Outer Halo of the Milky Way

    This study presents a tomographic survey of a subset of the outer halo (10-40 kpc) drawn from the Sloan Digital Sky Survey Data Release 6. Halo substructure on spatial scales of $>3$ degrees is revealed as an excess in the local density of sub-giant stars. With an appropriate assumption of a model stellar isochrone it is possible for us to then derive distances to the sub-giant population. We describe three new candidate halo substructures; the 160- and 180-degree over-densities (at distances...

    Exploring the Virgo Stellar Stream with SEKBO Survey RR Lyrae Stars

    Prior, Sayuri L; Da Costa, G S; Keller, Stefan C; Murphy, Simon J (2008)
    Projects: ARC | The Southern Sky Survey (DP0878137), ARC | The Southern Sky Survey (DP0343962)
    A subset of the RR Lyrae (RRL) candidates identified from the Southern Edgeworth-Kuiper Belt Object (SEKBO) survey data has been followed up photometrically (n=106) and spectroscopically (n=51). Period and light curve fitting reveals a 24 +/_ 7% contamination of SEKBO survey data by non-RRLs. This paper focuses on the region of the Virgo Stellar Stream (VSS), particularly on its extension to the South of the declination limits of the SDSS and of the QUEST RRL survey. The distribution of radia...

    Stellar over-densities in the halo: the extent of the Virgo over-density

    Keller, Stefan C.; Da Costa, Gary S.; Prior, Sayuri L. (2009)
    Projects: ARC | The Southern Sky Survey (DP0343962), ARC | The Southern Sky Survey (DP0878137)
    We map the three dimensional extent of the Virgo Over-density by combining distance information from RR Lyrae variables and projected spatial information from SEKBO (Keller et al. 2008) and Sloan Digital Sky Survey (SDSS) DR6 photometry. The Virgo Over-density is seen to comprise two filaments 14.5 x 3 degrees and 10 x 3 degrees and a circular structure 3 degrees in diameter. Together the three features span 38 degrees of right ascension and declinations of +2 to -15 degrees. RR Lyrae variabl...
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