The nature of the extended blue continuum in Cygnus A
| العنوان: | The nature of the extended blue continuum in Cygnus A |
|---|---|
| المؤلفون: | Martin Shaw, Clive Tadhunter |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 267:589-604 |
| بيانات النشر: | Oxford University Press (OUP), 1994. |
| سنة النشر: | 1994 |
| مصطلحات موضوعية: | Physics, Wavelength, Stellar population, Space and Planetary Science, Continuum (design consultancy), Extinction (astronomy), Astronomy, Astronomy and Astrophysics, Astrophysics, Cygnus A, Spatial distribution, Spectral line, Galaxy |
| الوصف: | We have used long-slit spectra to derive spatial continuum profiles at UV, optical and near-IR wavelengths in the central region of Cygnus A. The line-free continuum colour distributions derived from these are used to identify the spatial distribution of, and relative contribution from, the featureless blue continuum (FBC) in each of the principal nuclear subcomponents in this object. The FBC is spatially extended, covering a region ∼4-4.5 arcsec in extent along a P.A. of 105°. Beyond this, the emission is predominantly that of the old stellar population in the underlying galaxy. In addition, the core region is markedly redder than the adjacent NW and SE nuclear subcomponents, suggesting considerable reddening/extinction |
| تدمد: | 1365-2966 0035-8711 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::a2ce3a7cc2096617be34a5291aa8248eTest https://doi.org/10.1093/mnras/267.3.589Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........a2ce3a7cc2096617be34a5291aa8248e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
|---|