Results 91 to 100 of about 153,252 (195)

OUR GALACTIC CENTER – THE NEAREST BURNING DISK

Acta Polytechnica, 2013
This short presentation will update my more than 25 years long attempts at understandingthe actions of the Central Engine at our Galactic Center.
Wolfgang Kundt
doaj   +1 more source

Electrodynamics at Galactic Center [PDF]

Symposium - International Astronomical Union, 1989
Molecular clouds moving at Keplerian velocities can induce strong electric fields in ionized regions near the galactic center. The induced field can drive currents over equivalent circuits ~ 100 pc. along the highly ordered magnetic fields, B ~ 10−3G.
openaire   +1 more source

Dusty Sources at the Galactic Center: The N- and Q-band view with VISIR

, 2006
We present mid-infrared N- and Q-band photometry of the Galactic Center from images obtained with the mid-infrared camera VISIR at the ESO VLT in May 2004.
A. Eckart, J. Moultaka, J.‐U. Pott, Lutz D., Najarro F., Pott J.-U., R. Schodel, T. Viehmann   +7 more
core   +3 more sources

X-Rays from a Central “Exhaust Vent” of the Galactic Center Chimney

The Astrophysical Journal Letters
Using deep archival observations from the Chandra X-ray Observatory, we present an analysis of linear X-ray-emitting features located within the southern portion of the Galactic center chimney and oriented orthogonal to the Galactic plane, centered at ...
Scott C. Mackey, Mark R. Morris, Gabriele Ponti, Konstantina Anastasopoulou, Samaresh Mondal   +4 more
doaj   +1 more source

Black Holes and the Supermassive Compact Object at the Galactic Center: Multi-arts of Thought and Nature. [PDF]

Innovation (Camb), 2020
Yu Q.
europepmc   +1 more source

A study of dipolar signal in distant Quasars with various observables

European Physical Journal C: Particles and Fields
We study the signal of anisotropy in AGNs/quasars of CatWISE2020 catalogue using different observables. It has been reported earlier that this data shows a strong signal of dipole anisotropy in the source number counts.
Rahul Kothari, Mohit Panwar, Gurmeet Singh, Prabhakar Tiwari, Pankaj Jain   +4 more
doaj   +1 more source

A Millisecond Pulsar Binary Embedded in a Galactic Center Radio Filament

The Astrophysical Journal Letters
The Galactic center is host to a population of extraordinary radio filaments, thin linear structures that trace out magnetic field lines running perpendicular to the Galactic plane.
Marcus E. Lower, Shi Dai, Simon Johnston, Ewan D. Barr   +3 more
doaj   +1 more source

Low-frequency Absorption and Radio Recombination Line Features of the Galactic Center Lobe

The Astrophysical Journal
The Galactic center lobe (GCL) is a ∼1° object located north of the Galactic center. In the mid-infrared, the GCL appears as two 8.0 μ m filaments that roughly define an ellipse.
Natasha Hurley-Walker, L. D. Anderson, M. Luisi, N. M. McClure-Griffiths, Robert A. Benjamin, Michael A. Kuhn, Dylan J. Linville, B. Liu, Catherine Zucker   +8 more
doaj   +1 more source

NE2025: An Updated Electron Density Model for the Galactic Interstellar Medium

The Astrophysical Journal
Free electrons in the Galactic interstellar medium (ISM) disperse and scatter coherent radio waves, by amounts that depend on the distance to the radio source.
Stella Koch Ocker, James M. Cordes
doaj   +1 more source

The Galactic Center Magnetosphere

Journal of Physics: Conference Series, 2006
The magnetic field within a few hundred parsecs of the center of the Galaxy is an essential component of any description of that region. The field has several pronounced observational manifestations: 1) morphological structures such as nonthermal radio filaments (NTFs) -- magnetic flux tubes illuminated by synchrotron emission from relativistic ...
openaire   +2 more sources