G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center

Details G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94.1178y&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 94, Nov. 1987, p. 1178-1184.

Astronomy and Astrophysics

Astronomy

112

Galactic Nuclei, Nonthermal Radiation, Radio Sources (Astronomy), Thermal Emission, Astronomical Maps, Field Strength, Ionization, Magnetic Fields, Point Sources

Scientific paper

Using a high-resolution radio-continuum image made at a frequency of 4.8 GHz, the authors discuss the radio source G0.18-0.04 located at the intersection of the galactic center Arc with the galactic plane. In this direction, the radio Arc is composed of a set of linear, nonthermal filamentary structures superimposed on a narrow, sickle-shaped, thermal feature which crosses them. The radio image suggests a physical interaction between the thermal and nonthermal structures. The authors argue that the magnetic field is dynamically important and estimate that its strength is very large, ≡10-3G. Furthermore, they suggest that the ionization of G0.18-0.04 is caused by collisional ionization rather than ultraviolet photons from massive stars. The discussion presents possible ways in which some of the energy of the relativistic particles or the magnetic field in the nonthermal filaments might be extracted to ionize ambient gas in the galactic plane.

Affiliated with

Also associated with

No associations

Rating

G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and G0.18-0.04 - Interaction of thermal and nonthermal radio structures in the arc near the galactic center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1713100