The light-curve of microlensing event EROS-BLG-2000-5

Schematic representation of the lightcurve of the EROS-BLG-2000-5 microlensing event. It represents the changing brightness of a background star, as its light is being amplified by a binary gravitational lens that passes the line-of-sight from the Earth to the star. The ordinate indicates the factor by which the intensity increases during the various phases of the lensing event, as compared to the normal brightness of the star. The moment of the second "caustic crossing" is indicated, during which the image of the star is substantially brighter. Spectral observations were made with the VLT at the times indicated by arrows.

Źródło:

ESO

O zdjęciu

Identyfikator:eso0117a
Typ:Wykres
Data publikacji:25 kwietnia 2001
Powiązane komunikaty:eso0117
Rozmiar:2705 x 2760 px

O obiekcie

Nazwa:EROS-BLG-2000-5
Typ:Milky Way : Star
Milky Way : Cosmology : Phenomenon : Lensing
Odległość:25000 lat świetlnych
Kategoria:Stars

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