WFRF:(Hodges M.W.)
Sökning: WFRF:(Hodges M.W.) > VLBI observations o...
LIBRIS Formathandbok (Information om MARC21)
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 05003naa a2200601 4500 | |
| 001 | oai:DiVA.org:hh-22834 | |
| 003 | SwePub | |
| 008 | 130617s1992 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-228342 URI |
| 040 | a (SwePub)hh | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Bååth, L.B.d 1948-u Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden4 aut0 (Swepub:hh)baath |
| 245 | 1 0 | a VLBI observations of active galactic nuclei at 3 MM |
| 264 | 1 | a Les Ulis :b EDP Sciences,c 1992 |
| 338 | a print2 rdacarrier | |
| 500 | a The VLBI project at Onsala is supported by the Swedish National Science Foundation under grant F-FU 4876-302. | |
| 520 | a Recent improvements in data analysis and receiver techniques have allowed us to produce maps of the 100 GHz emission from the compact cores of active galactic nuclei with the unsurpassed resolution of 50-mu-as (microarcseconds). We present here hybrid maps of a set of compact radio sources observed at two epochs with a global VLBI array. The high resolution enables us to show details of active galactic nuclei on size scales of 10(16)-10(17) cm. Jets are shown to be more curved in these inner parts than further out in the areas mapped with VLBI at lower frequencies. Our maps of the quasar 3C345 show that the curvature seen with lower resolution instruments continues very close to the core. New components are seen separating from the cores of 3C84 and BL Lac. We observe a component in 3C84 separating from the core with an apparent speed approximately 21000 km sec-1. The radio source OJ287 is still unresolved with our array, having a core size of less-than-or-similar-to 10(17) cm. There is no indication of any compact component in 3C279 which would be associated with the outburst in integrated flux density which happened some months before our observation. The flux density of the most compact component we observe in 3C279 agrees well with that of the quiet core as extrapolated from its radio spectrum at lower frequencies. The inner part of the radio jet of the giant elliptical galaxy M87 also shows a continuation of the structure on a larger size scale, with a structure we interpret as parts of a helical pattern. No fringes were found for 4C39.25 or Sgr A. | |
| 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 galaxies | |
| 653 | a jets | |
| 653 | a hot spots | |
| 653 | a shocks | |
| 653 | a magnetic fields | |
| 653 | a relativity | |
| 700 | 1 | a Rogers, A.E.E.u Haystack Observatory, Westford, MA, USA4 aut |
| 700 | 1 | a Inoue, M.u Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano, Japan4 aut |
| 700 | 1 | a Padin, S.u Owens Valley Observatory, Pasadena, CA, USA4 aut |
| 700 | 1 | a Wright, M.C.H.u University of California, Berkeley, CA, USA4 aut |
| 700 | 1 | a Zensus, A.u National Radio Astronomy Observatory, Socorro, NM, USA4 aut |
| 700 | 1 | a Kus, A.J.u Torun Radio Observatory, Torun, Poland4 aut |
| 700 | 1 | a Backer, D.C.u University of California, Berkeley, CA, USA4 aut |
| 700 | 1 | a Booth, R.S.u Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden4 aut |
| 700 | 1 | a Carlstrom, J.E.u University of California, Berkeley, CA, USA4 aut |
| 700 | 1 | a Dickman, R.L.u University of Massachusetts, AMherst, MA, USA4 aut |
| 700 | 1 | a Emerson, D.T.u National Radio Astronomy Observatory, Tucson, AZ, USA4 aut |
| 700 | 1 | a Hirabayashi, H.u Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano, Japan4 aut |
| 700 | 1 | a Hodges, M.W.u Owens Valley Observatory, Pasadena, CA, USA4 aut |
| 700 | 1 | a Kobayashi, H.u Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano, Japan4 aut |
| 700 | 1 | a Lamb, J.u National Radio Astronomy Observatory, Tucson, AZ, USA4 aut |
| 700 | 1 | a Moran, J.M.u Center for Astrophysics, Cambridge, MA, USA4 aut |
| 700 | 1 | a Morimoto, M.u Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano, Japan4 aut |
| 700 | 1 | a Plambeck, R.L.u University of California, Berkeley, CA, USA4 aut |
| 700 | 1 | a Predmore, C.R.u University of Massachusetts, AMherst, MA, USA4 aut |
| 700 | 1 | a Rönnäng, B.u Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Sweden4 aut |
| 700 | 1 | a Woody, D.u Owens Valley Observatory, Pasadena, CA, USA4 aut |
| 710 | 2 | a Onsala Space Observatory, Chalmers University of Technology, Gothenburg, Swedenb Haystack Observatory, Westford, MA, USA4 org |
| 773 | 0 | t Astronomy and Astrophysicsd Les Ulis : EDP Sciencesg 257:1, s. 31-46q 257:1<31-46x 0004-6361x 1432-0746 |
| 856 | 4 | u http://adsabs.harvard.edu/abs/1992A%26A...257...31By Full text |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-22834 |
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