Analysis of the Difference Light Curve of the Gravitational Mirage QSO 0957+561

Details Analysis of the Difference Light Curve of the Gravitational Mirage QSO 0957+561 Analysis of the Difference Light Curve of the Gravitational Mirage QSO 0957+561

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ap%26ss.263...47g&link_type=abstract

Astrophysics and Space Science, v. 263, Issue 1/4, p. 47-50 (1998).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

From optical data of Q0957+561 for 1995/1996 seasons (in the g band) and 1996/1997 seasons (in the R band) they are derived upper limits on the amplitude of the rapid microlensing fluctuations of 0.07 mag and 0.05 mag, respectively. The photometry in the R band (1996/1997 seasons) was taken at Teide Observatory (IAC-80 Telescope), Instituto de Astrofisica de Canarias, Spain. In this contribution, we also study the microlensing history (from 1981 to 1996) of the Twin QSO, which is a curious system with two optical images of similar brightness.

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