The central kpc of the Milky Way might be expected to differ significantly from the rest of the
Galaxy with regard to gasdynamics and the formation of young stellar objects (YSOs). We …

The high-energy activity in the inner few degrees of the Galactic center is traced by diffuse
radio, X-ray, and γ-ray emission. The physical relationship between different components of …

… Similar behavior has been detected in the NRFs of the radio Arc as the NRFs cross the H
ii regions associated with the Arched filaments (Yusef-Zadeh & Morris 1987b). These images …

We have carried out Very Large Array (VLA) continuum observations to study the variability
of Sgr A* at 43 GHz (λ= 7 mm) and 22 GHz (λ= 13 mm). A low level of flare activity has been …

… structures seen in the arc and in Sgr C (Yusef-Zadeh, Morris, and Chance 1984; Liszt
1985; Yusef-Zadeh 1986), or … absorptions in the Sgr A complex are given by Yusef-Zadeh …

We derive the extinction curve toward the Galactic center (GC) from 1 to 19 μm. We use
hydrogen emission lines of the minispiral observed by ISO-SWS and SINFONI. The extinction-…

… Details of data reductions are described in Yusef-Zadeh et al. (2004). To measure the
spectral … filaments is also found on the positive longitude side of the Galactic center (Yusef-Zadeh …

Although Sgr A* is known to be variable in radio, millimeter, near-IR, and X-rays, the
correlation of the variability across its spectrum has not been fully studied. Here we describe …

A Monte Carlo technique is used to simulate three well-known bipolar reflection nebulae
associated with evolved stars, the Red Rectangle (HD 44179), CRL 2688, and Minkovski's …

We report the detection of variable emission from Sgr A* in almost all wavelength bands (ie,
centimeter, millimeter, submillimeter, near-IR, and X-rays) during a multi-wavelength …