Variable stars in the MACHO Collaboration database

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The MACHO Collaboration`s search for baryonic dark matter via its gravitational microlensing signature has generated a massive database of time ordered photometry of millions Of stars in the LMC and the bulge of the Milky Way. The search`s experimental design and capabilities are reviewed and the dark matter results are briefly noted. Preliminary analysis of the {approximately} 39,000 variable stars discovered in the LMC database is presented and examples of periodic variables are shown. A class of aperiodically variable Be stars is described which is the closest background to microlensing which has been found. Plans for future work on variable ... continued below

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12 p.

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Cook, K.H.; Alcock, C. & Allsman, R.A. February 1, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 16 times , with 6 in the last month . More information about this article can be viewed below.

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  • Cook, K.H.
  • Alcock, C. Lawrence Livermore National Lab., CA (United States)
  • Allsman, R.A. Australian National Univ., Canberra, ACT (Australia). Mount Stromlo and Siding Spring Observatories

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Description

The MACHO Collaboration`s search for baryonic dark matter via its gravitational microlensing signature has generated a massive database of time ordered photometry of millions Of stars in the LMC and the bulge of the Milky Way. The search`s experimental design and capabilities are reviewed and the dark matter results are briefly noted. Preliminary analysis of the {approximately} 39,000 variable stars discovered in the LMC database is presented and examples of periodic variables are shown. A class of aperiodically variable Be stars is described which is the closest background to microlensing which has been found. Plans for future work on variable stars using the MACHO data are described.

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12 p.

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OSTI as DE95015127

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  • Astrophysical applications of stellar pulsation, Cape Town (South Africa), 6-10 Feb 1995

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  • Other: DE95015127
  • Report No.: UCRL-JC--120968
  • Report No.: CONF-950278--2
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 104792
  • Archival Resource Key: ark:/67531/metadc622399

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Aug. 23, 2016, 3:25 p.m.

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Cook, K.H.; Alcock, C. & Allsman, R.A. Variable stars in the MACHO Collaboration database, article, February 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc622399/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.