The galactic center: An interacting system of unusual sources

The Galactic Center : An Interacting System of Unusual Sources

The effect of variation of stellar dispersion velocities by the galactic latitude in interpreting gravitational microlensing observations

Our galaxy is a spiral galaxy and its stars are mostly in a thin disk and rotate around the galactic center. The vertical component of the dispersion velocity of stars is a function of the galactic latitude and decreases with increasing it. In the galactic Besancon model, this dependence is ignored and they just consider the dependence of dispersion velocity on the stellar age. Becanson model i...

ar X iv : a st ro - p h / 05 01 31 6 v 1 1 5 Ja n 20 05 Starburst Driven Thermal and Non - thermal Structures in the Galactic Center Region

We briefly review the prominent thermal and nonthermal sources near the Galactic center. These sources include the young stellar clusters, the Sgr B complex as well as the large-scale nonthermal filaments and lobes. Some of the recent radio images of this region based on VLA and Green Bank Telescope observations are also presented. We then argue that the origin of the large-scale features withi...

Pancake kidney: An unusual type of renal fusion anomaly found in 99mTc-DMSA renal scintigraphy

A 2.5-year-old boy with a history of the previous incidental finding of an ectopic kidney in ultrasonography was referred to our nuclear medicine center for 99mTc-DMSA renal scintigraphy. The scan showed an unusual type of ectopic fused kidneys on the right side of the lower abdomen. In this anomaly, kidneys were fused completely across the medial portion of both upper and lower pole...

Statistical Analysis of Point-like Sources in Chandra Galactic Center Survey

Chandra Galactic Center Survey detected ∼ 800 X-ray pointlike sources in the 2 × 0.8 sky region around the Galactic Center. In this paper, we study the spatial and luminosity distributions of these sources according to their spectral properties. Fourteen bright sources detected are used to fit jointly an absorbed power-law model, from which the power-law photon index is determined to be ∼2.5. A...