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- W1987804592 abstract "view Abstract Citations (36) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Microlensing by Stars Kamionkowski, Marc Abstract If stars at the lower end of the main sequence are responsible for the microlensing events observed in the Galactic bulge, then light from the lensing star contributes to the observed brightness. The background and lensing stars generally have different colors, and the relative brightness changes during the microlensing event. Therefore, microlensing light curves are not perfectly achromatic if hydrogen-burning stars are the lenses. In most cases, the color shift will be too small to be observable, but we argue that given the current microlensing rates, it is plausible that a few color-shifted microlensing events could be observed in the near future, especially if strategies are optimized to search for them. Although rare, such an event could potentially provide a wealth of information: Light curves in two bands can be used to determine the masses and distances of the two stars as well as the transverse speed of the lensing star. Light curves in additional wavebands could make the determination more precise. Publication: The Astrophysical Journal Pub Date: March 1995 DOI: 10.1086/187803 arXiv: arXiv:astro-ph/9410062 Bibcode: 1995ApJ...442L...9K Keywords: Dwarf Stars; Faint Objects; Galactic Bulge; Gravitational Lenses; Milky Way Galaxy; Stellar Color; Dark Matter; Galactic Structure; Light Curve; Astronomy; GALAXY: GENERAL; GALAXY: STRUCTURE; COSMOLOGY: GRAVITATIONAL LENSING; Astrophysics; High Energy Physics - Phenomenology E-Print: 11 pages, uuencoded, compressed Postscript full text sources arXiv | ADS | data products SIMBAD (1)" @default.
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- W1987804592 date "1995-03-01" @default.
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- W1987804592 title "Microlensing by stars" @default.
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