The SuperCOSMOS Sky Survey – III. Astrometry

By Nigel C. Hambly, C. Davenhall, M. Irwin, Harvey MacGillivray Wide Field Astronomy Unit IfA Univers Edinburgh, I. Edinburgh, C. University. 2001

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In this, the third in a series of three papers concerning the SuperCOSMOS Sky Survey, we describe the astrometric properties of the data base. We describe the algorithms employed in the derivation of the astrometric parameters of the data, and demonstrate their accuracies by comparison with external data sets using the first release of data, the South Galactic Cap survey. We show that the celestial coordinates, which are tied to the International Celestial Reference Frame via the Tycho–2 reference catalogue, are accurate to better than ±0.2 arcsec at J,R∼19,18, rising to ±0.3 arcsec at J,R∼22,21, with positional-dependent systematic effects from bright to faint magnitudes at the ∼0.1-arcsec level. The proper motion measurements are shown to be accurate to typically ±10 mas yr−1 at J,R∼19,18, rising to ±50 mas yr−1 at J,R∼22,21, and are tied to zero using the extragalactic reference frame. We show that the zero-point errors in the proper motions are ≤1 mas yr−1 for R>17, and are no larger than ∼10 mas yr−1 for R<17 mas yr−1.

Subfields: Astronomy and Astrophysics, Computational Mechanics, Oceanography

View Paper: https://www.semanticscholar.org/paper/fef72c05b6dfb3582798d13ac81da750893898cf

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Citations in the corpus

TWO MICRON ALL SKY SURVEY PHOTOMETRIC REDSHIFT CATALOG: A COMPREHENSIVE THREE-DIMENSIONAL CENSUS OF THE WHOLE SKY (2013, methodology): “Working in the context of analyzing the ISW signal, they derived photometric redshift estimates by matching the 2MASS data with optical catalogs generated from SuperCOSMOS scans of major photographic sky surveys (Hambly et al. 2001c).”
A Moving Cluster Distance to the Exoplanet 2M1207b in the TW Hydrae Association (2005, result): “These errors are very consistent with the SuperCOSMOS positional errors quoted by Hambly et al. (2001).”
Giant Planet Companion to 2MASSW J1207334-393254 (2005, unknown): “Using all available positions from the 2MASS (Cutri et al. 2003), DENIS (Epchtein et al. 1997) and SSS (Hambly et al. 2001) catalogues, Scholz et al. (2005) have recently determined a more accurate proper motion of 2M1207A: (µα, µδ) ∼ (−78± 11,−24± 9) mas/yr.”
Subtle Signatures of Multiplicity in Late-type Dwarf Spectra: The Unresolved M8.5 + T5 Binary 2MASS J03202839–0446358 (2008, methodology): “Deacon, Hambly & Cooke (2005), using I-band plate data from the SuperCosmos Sky Survey (SSS; Hambly et al. 2001a,b,c), report a relatively high proper motion of 0.”
The 6dF Galaxy Survey: final redshift release (DR3) and southern large-scale structures (2009, methodology): “However, some of the values in BMAG and RMAG have changed because of an improvement in the algorithm we have used to match 6dFGS objects with new SuperCOSMOS magnitudes.”
HE 0437–5439: An Unbound Hypervelocity Main-Sequence B-Type Star (2005, unknown): “The Super-COSMOS Sky Survey (Hambly et al. 2001) gives µα cos(δ) = −0.6 ± 8.8 mas yr −1 and µδ = −6.2 ± 6.9 mas yr−1, i.e. consistent with zero and error limits larger than any plausible value.”
Measurement of intrinsic alignments in galaxy ellipticities (2000, methodology): “Further details concerning image parameterisation, classification and photometry are given in Hambly et al. (2001b).”
The SuperCOSMOS Sky Survey – II. Image detection, parametrization, classification and photometry (2001, methodology): “1 I N T R O D U C T I O N In Paper I of this series (Hambly et al. 2001a) we describe the SuperCOSMOS Sky Survey programme (hereafter SSS).”
The HIPASS catalogue - III. Optical counterparts and isolated dark galaxies (2005, methodology): “The SuperCOS data allows for magnitudes to be calculated as galaxies regardless of whether they are classified as a star or a galaxy (Hambly et al. 2001b).”
AN INFRARED/X-RAY SURVEY FOR NEW MEMBERS OF THE TAURUS STAR-FORMING REGION (2009, background): “…in Taurus based on stars from our adopted census and proper motions measurements from a variety of sources (Harris et al. 1999; Høg et al. 2000; Hambly et al. 2001; Hanson et al. 2004; Zacharias et al. 2004a,b; Ducourant et al. 2005; Loinard et al. 2007; van Leeuwen 2007; Röser et al. 2008;…”
The AAO/UKST SuperCOSMOS Hα survey (2005, methodology): “Astrometric calibration of survey photographic material measured on SuperCOSMOS is discussed in Hambly et al. (2001).”
THE THIRD US NAVAL OBSERVATORY CCD ASTROGRAPH CATALOG (UCAC3) (2004, methodology): “SuperCOSMOS (Hambly et al. 2001b) proper motions were applied to the SuperCOSMOS Source Catalog positions to generate positions at the epoch of UCAC data.”
THE DISCOVERY AND ANALYSIS OF VERY METAL-POOR STARS IN THE GALAXY (2005, background): “F or p er so na l u se o nl y. STARNET catalog (Röser 1996), the SuperCOSMOS catalog (Hambly et al. 2001), the Northern Proper Motion Survey (Hanson et al. 2004), the Southern Proper Motion Survey (Girard et al. 2004), and the U.S. Naval Observatory CCD Astrograph Catalog (Zacharias et al. 2004).”
The SuperCOSMOS Sky Survey – I. Introduction and description (2001, background): “In Paper III, we demonstrate the external accuracy of the SSS data for |b| ≥ 30◦ using the test described by Deutsch (1999) based on standard positions from the International Celestial Reference Frame (ICRF) sources listed in Ma et al. (1998).”