Two pairs of interacting EBs towards the LMC in the OGLE database

Details Two pairs of interacting EBs towards the LMC in the OGLE database Two pairs of interacting EBs towards the LMC in the OGLE database

2008-12-17

arxiv.org/abs/0812.3386v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure. IBVS accepted (IBVS no. 5868)

Scientific paper

A single point source on the OGLE LMC database shows the characteristics of two superimposed eclipsing binaries (EBs). The two EBs happen to have periods very close to the 3:2 resonance. The telescope's small PSF and the apparent resonance between the two EBs raises the suspicion that this is not chance alignment but rather a compact hierarchical system of two pairs of interacting EBs in 3:2 resonance.

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