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A discussion on new VBLUW observations of the X-ray binary Sk. 160=SMC X-1
1981 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 101, no 1, 101-104104 p.Article in journal (Refereed) Published
Abstract [en]

VBLUW photometry (Walraven system) of Sk. 160=SMC X-1 made in 1973, 1975, and 1977 are discussed. They are compared with those of van Paradijs (1977) made in 1976. Using all available photometric and X-ray mid-eclipse data, a period is determined by a weighted least-squares solution: P=3.89235 dplusmn0.00002 d m.e

Place, publisher, year, edition, pages
1981. Vol. 101, no 1, 101-104104 p.
Keyword [en]
Experimental/ eclipsing binary stars, stellar motion, stellar photometry, X-ray binary stars/ X-ray binary, SMC X-1, VBLUW photometry, period, Sanduleak 160, Sk 160, variable star, eclipsing binary, X-ray source, AD 1973 07 03 to 1977 12 18/ A9580J Photographic region astronomical observations A9710R Stellar radiation and spectra A9710W Stellar space motions (proper motions, radial velocities, and orbits) A9780H Eclipsing binaries A9780J X-ray binaries
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-197185ISI: 1772362OAI: oai:DiVA.org:uu-197185DiVA: diva2:611968
Available from: 2013-03-19 Created: 2013-03-18 Last updated: 2017-12-06

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van Groningen, E.

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