Astrometric Shifts in the OGLE-1 Microlensing Events

• Autorzy: Goldberg D. M. , Woźniak P. R.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

gravitational lensing

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 1998
• Tom: Vol. 48, No. 1
• Strony: 19--34
• Opis fizyczny: Bibliogr. 19 poz., wykr.

Twórcy

autor

Goldberg D. M.

• Princeton University Observatory, Princeton, NJ 08544-1001, USA

autor

Woźniak P. R.

• Princeton University Observatory, Princeton, NJ 08544-1001, USA

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