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Astrometric shifts in the OGLE-1 microlensing events
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1860/1917
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| Title: | Astrometric shifts in the OGLE-1 microlensing events |
| Authors: | Goldberg, David
Wo´zniak, Przemyslaw |
| Keywords: | Gravitational Microlensing |
| Issue Date: | 18-Dec-1997 |
| Publisher: | American Astronomical Society |
| Citation: | The Astrophysical Journal. 48, pp. 19. |
| Abstract: | We measure the astrometric shifts of the light centroids for the microlensing
events in the OGLE-1 database. Of the 15 consistently detected events, 7
had significant shifts which we were able to measure with a fair degree of
confidence. Those events with large shifts are also expected to be unresolved
with a background “blend”, and thus, we suggest that we have identified events
in the OGLE-1 catalog which are strongly blended. Though we concentrate on
the OGLE-1 database, and use the DoPHOT package in order to perform our
analysis, we suggest that this shift is a generic effect, and should be observable
in any crowded field. |
| URI: | http://arxiv.org/abs/astro-ph/9712262v1
http://hdl.handle.net/1860/1917 |
| Appears in Collections: | Faculty Research and Publications (Physics)
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