Variable Stars in the Large Magellanic Clouds Virtual Observatory Resource

Authors
  1. Alcock C.
  2. Allsman R.
  3. Alves D.
  4. Axelrod T.
  5. Bennett D.
  6. Cook K.,Freeman K.
  7. Lehner M.
  8. Griest K.
  9. Marshall S.
  10. Minniti D.
  11. Peterson B.,Pratt M.
  12. Quinn P.
  13. Rodgers A.
  14. Stubbs C.
  15. Sutherland W.
  16. Welch D.
  17. Published by
    CDS
Abstract

The MACHO Project is a collaboration between scientists at the Mt. Stromlo & Siding Spring Observatories, the Center for Particle Astrophysics at the Santa Barbara, San Diego, & Berkeley campuses of the University of California, and the Lawrence Livermore National Laboratory. The primary aim of the project is a search for dark matter in the halo of the Milky Way in the form of objects like brown dwarfs or planets also named MACHOs, for MAssive Compact Halo Objects. The signature of these MACHOs is the occasional amplification of the light from extragalactic stars by the gravitational lens effect. The amplification can be large, but events are extremely rare: it is necessary to monitor photometrically several million stars for a period of years in order to obtain a useful detection rate. The MACHO project is described by Alcock et al. (1992, in "Robotic Telescopes in the 1990s", A.V. Fillippenko Ed., ASP Conf. Series 34, p.193). A dedicated 1.27-m telescope at Mount Stromlo, Australia is used to obtain observations of the LMC year-round, using a camera imaging a field of view of 0.5 square degrees at prime focus. Photometric observations of the LMC fields are obtained in two bandpasses simultaneously, using a dichroic beamsplitter to direct the blue (440-590nm) and red (590-780nm) light onto 2x2 mosaics of 2048x2048 Loral CCDs; the 15um pixels map to 0.63arcsec on the sky. The photometric reduction methods are detailed in Alcock et al. (1996ApJ...461...84A).

Keywords
  1. variable-stars
  2. ccd-photometry
  3. magellanic-clouds
Bibliographic source
MACHO Project (2001)
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/II/247
IVOA Identifier IVOID
ivo://CDS.VizieR/II/247

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/247
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/247
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/247
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/II/247/machovar?
https://vizier.iucaa.in/viz-bin/conesearch/II/247/machovar?
http://vizieridia.saao.ac.za/viz-bin/conesearch/II/247/machovar?

History

2003-07-07T12:01:14Z
Resource record created
2003-07-07T12:01:14Z
Created
2018-02-01T11:50:43Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr