ar X iv : a st ro - p h / 05 02 36 3 v 4 3 1 A ug 2 00 5 Microlensing optical depth toward the Galactic Bulge using bright sources from OGLE - II
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چکیده
We present a measurement of the microlensing optical depth toward the Galactic Bulge based on 4 years of the OGLE-II survey. We consider only bright sources in the extended Red Clump Giant (RCG) region of the Color
منابع مشابه
ar X iv : a st ro - p h / 05 02 36 3 v 2 1 9 M ay 2 00 5 Microlensing optical depth toward the Galactic Bulge using bright sources from OGLE - II
We present a measurement of the microlensing optical depth toward the Galactic Bulge based on 4 years of OGLE-II survey. We consider only bright sources in the extended Red Clump Giant (RCG) region of the Color-Magnitude
متن کاملar X iv : a st ro - p h / 05 02 36 3 v 3 2 7 M ay 2 00 5 Microlensing optical depth toward the Galactic Bulge using bright sources from OGLE - II
We present a measurement of the microlensing optical depth toward the Galactic Bulge based on 4 years of OGLE-II survey. We consider only bright sources in the extended Red Clump Giant (RCG) region of the Color-Magnitude
متن کاملar X iv : a st ro - p h / 05 02 36 3 v 1 1 7 Fe b 20 05 Microlensing optical depth toward the Galactic Bulge using bright sources from OGLE - II
We present a measurement of the microlensing optical depth in the direction of the Galactic Bulge (GB) based on the OGLE-II survey. Using a sample of 33 events we obtained a value τ = 1.96 +0.41 −0.34 × 10 −6 along the effective line of sight (l, b) = (1. • 16, −2. • 75). Events were selected in a timescale range 1 < t E < 400 d. We considered only bright sources in the extended Red Clump Giant...
متن کاملar X iv : a st ro - p h / 02 10 36 7 v 2 3 M ar 2 00 3 1 The Optical Gravitational Lensing Experiment . Is Interstellar Extinction Toward the Galactic Center
Photometry of the Galactic bulge, collected during the OGLE-II microlensing search, indicates high and non-uniform interstellar extinction toward the observed fields. We use the mean I-band magnitude and V −I color of red clump stars as a tracer of interstellar extinction toward four small regions of the Galactic bulge with highly variable reddening. Similar test is performed for the most redde...
متن کاملar X iv : a st ro - p h / 02 10 36 7 v 1 1 6 O ct 2 00 2 1 The Optical Gravitational Lensing Experiment . Is Interstellar Extinction Toward the Galactic
Photometry of the Galactic bulge, collected during the OGLE-II microlensing search, indicates high and non-uniform interstellar extinction toward the observed fields. We use the mean I-band magnitude and V −I color of red clump stars as a tracer of interstellar extinction toward four small regions of the Galactic bulge with highly variable reddening. Similar test is performed for the most redde...
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تاریخ انتشار 2006