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Evidence for gravitational microlensing by dark objects in the Galactic halo
THE flat rotation curves of spiral galaxies, including our own, indicate that they are surrounded by unseen haloes of ‘dark matter’1,2. In the absence of a massive halo, stars and gas in the outerExpand
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EROS and MACHO combined limits on planetary-mass dark matter in the galactic halo
The EROS and MACHO collaborations have each published upper limits on the amount of planetary-mass dark matter in the Galactic halo obtained from gravitational microlensing searches. In this Letter,Expand
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A2163: AN EXCEPTIONALLY HOT CLUSTER OF GALAXIES
Extensive observations of A2163, both in the optical and X-ray bands, are reported. The cluster displays a high temperature, gas and total mass as well as a strong optical luminosity and a largeExpand
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Void Probabilities in the Galaxy Distribution: Scaling and Luminosity Segregation
A method for estimating the void probability function (VPF) from any volume- and absolute magnitude-limited galaxy catalog is developed and applied to three volume- and magnitude-limited subclassesExpand
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Pre-Main-Sequence Star Candidates in the Bar of the Large Magellanic Cloud
Candidate pre-main-sequence stars were observed in the bar of the Large Magellanic Cloud during the search for dark matter in the galactic halo. Seven blue stars of apparent visual magnitude 15 to 17Expand
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EROS VARIABLE STARS : FUNDAMENTAL-MODE AND FIRST OVERTONE CEPHEIDS IN THE BAR OF THE LARGE MAGELLANIC CLOUD
We present CCD phase-binned light curves at 490 nm for 97 Cepheid variable stars in the bar of the LMC. The photometry was obtained as part of the French EROS project and has excellent phaseExpand
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IC 3475: A stripped dwarf galaxy in the Virgo cluster
We have obtained B and R CCD and H I observations of the Virgo dwarf galaxy IC 3475. The galaxy is remarkable for its very large diameter (approx.10 kpc for a Virgo distance modulus of 31) and isExpand
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Spectroscopic Studies of the Two Eros Candidate Microlensed Stars
Low resolution spectroscopy, and UBVRI photometry, have been obtained for the two EROS microlensing candidates. Radial velocities indicate that both stars are members of the Large Magellanic Cloud.Expand
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Physical and dynamical properties of two clusters of galaxies derived from X-ray data
The Einstein IPC X-ray images of two clusters of galaxies, ABCG 85 and ABCG 2199, are analyzed. A new method have been developed, including a code which fully reproduces the IPC spatial and spectralExpand
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