WFRF:(Booth P.)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02955naa a2200397 4500 | |
| 001 | oai:research.chalmers.se:6644a308-3c83-4981-b951-be734d438f89 | |
| 003 | SwePub | |
| 008 | 171007s2008 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://research.chalmers.se/publication/889842 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361:200792292 DOI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Israel, F.P.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
| 245 | 1 0 | a The millimeter wave continuum spectrum of Centaurus A and its nucleus |
| 264 | c 2008-03-26 | |
| 264 | 1 | b EDP Sciences,c 2008 |
| 520 | a Aims. We study the radio emission mechanism of the FR-I AGN NGC 5128 (Centaurus A).Methods. We determine the centimeter and millimeter continuum spectrum of the whole Centaurus A radio source and measure at frequencies between 86 GHz (3.5 mm) and 345 GHz (0.85 mm) the continuum emission from the active radio galaxy nucleus at various times between 1989 and 2005.Results. The integral radio source spectrum becomes steeper at frequencies above 5 GHz, where the spectral index changes from alpha(low) = -0.70 to alpha(high) = -0.82. The SW outer lobe has a steeper spectrum than the NE middle and outer lobes (alpha = -1.0 vs. -0.6). Millimeter emission from the core of Centaurus A is variable, a variability that correlates appreciably better with the 20-200 keV X-ray variability than with 2-10 keV variability.Conclusions. In its quiescent state, the core has a spectral index alpha = -0.3, which steepens when the core brightens. The variability appears to be mostly associated with the inner nuclear jet components that have been detected in VLBI measurements. The densest nuclear components are optically thick below 45-80 GHz. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 653 | a radio continuum : galaxies | |
| 653 | a galaxies : individual : NGC 5128 | |
| 653 | a galaxies : nuclei | |
| 653 | a galaxies : peculiar | |
| 653 | a submillimeter | |
| 653 | a galaxies : active | |
| 700 | 1 | a Raban, D.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
| 700 | 1 | a Booth, Roy,d 1938u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)roy |
| 700 | 1 | a Rantakyrö, F.T.u European Southern Observatory Santiago4 aut |
| 710 | 2 | a Universiteit Leiden (UL)b Chalmers tekniska högskola4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 483:3, s. 741-748q 483:3<741-748x 0004-6361x 1432-0746 |
| 856 | 4 | u https://www.aanda.org/articles/aa/pdf/2008/21/aa9229-07.pdf |
| 856 | 4 8 | u https://research.chalmers.se/publication/88984 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361:20079229 |
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