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
نویسندگان
چکیده
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
منابع مشابه
ar 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 4 3 1 A ug 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 the OGLE-II survey. We consider only bright sources in the extended Red Clump Giant (RCG) region of the Color
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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006