The UvA-LINKER will give you a range of other options to find the full text of a publication (including a direct link to the full-text if it is located on another database on the internet).
De UvA-LINKER biedt mogelijkheden om een publicatie elders te vinden (inclusief een directe link naar de publicatie online als deze beschikbaar is in een database op het internet).
journal id: "astrophysicalxjournal"
| Authors||C.J. Law, D. Backer, F. Yusef-Zadeh, R. Maddalena|
|Title||Radio recombination lines toward the Galactic center lobe|
|Faculty||Faculty of Science|
|Institute/dept.||FNWI: Astronomical Institute Anton Pannekoek (IAP)|
|Abstract||The Galactic center (GC) lobe is a degree-tall shell seen in radio continuum images of the GC region. If it is actually located in the GC region, formation models would require massive energy input (e. g., starburst or jet) to create it. At present, observations have not strongly constrained the location or physical conditions of the GC lobe. This paper describes the analysis of new and archival single-dish observations of radio recombination lines toward this enigmatic object. The observations find that the ionized gas has a morphology similar to the radio continuum emission, suggesting that they are associated. We study averages of several transitions from H106 alpha to H191 epsilon and find that the line ratios are most consistent with gas in local thermodynamic equilibrium. The radio recombination line widths are remarkably narrow, constraining the typical electron temperature to be less than about 4000 K. These observations also find evidence of pressure broadening in the higher electronic states, implying a gas density of n(e) = 910(-450)(+310) cm(-3). The electron temperature, gas pressure, and morphology are all consistent with the idea that the GC lobe is located in the GC region. If so, the ionized gas appears to form a shell surrounding the central 100 parsecs of the galaxy with a mass of roughly 10(5) M-circle dot, similar to ionized outflows seen in dwarf starbursts.|
Use this url to link to this page: http://dare.uva.nl/en/record/357869
Contact us about this recordNotify a colleague
Add to bookbag