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50 μas resolution V...
50 μas resolution VLBI images of AGN’s at λ3 mm
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- Rantakyrö, F.T. (author)
- Istituto di RadioAstronomia–CNR, Via Gobetti 101, I-40129, Bologna, Italy; Joint Institute for VLBI in Europe, Postbus 2, 7990AA Dwingeloo, The Netherlands
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- Bååth, Lars B. (author)
- Högskolan i Halmstad,Sektionen för ekonomi och teknik (SET)
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- Backer, D.C. (author)
- University of California, Berkeley CA 94720, U.S.A.
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- Booth, R.S. (author)
- Onsala Space Observatory, S-439 92 Onsala, Sweden
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- Carlström, J.E. (author)
- Owens Valley Observatory, California Institute of Technology, Pasadena CA 91125, U.S.A.
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- Emerson, D.T. (author)
- NRAO, 949 N. Cherry Ave., Campus Bldg. 65, Tucson AZ 85721-0655, U.S.A.
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- Grewing, M. (author)
- IRAM, 300 rue de la Piscine, F-38406 St. Martin d’H`eres, France
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- Hirabayashi, H. (author)
- Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
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- Hodges, M.W. (author)
- Owens Valley Observatory, California Institute of Technology, Pasadena CA 91125, U.S.A.
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- Inoue, M. (author)
- Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
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- Kobayashi, H. (author)
- Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
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- Krichbaum, T. P. (author)
- Max-Planck-Institut fu ̈r Radioastronomie, Auf dem Huegel 69, D-53121 Bonn, Germany
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- Kus, A.J. (author)
- Torun Radio Observatory, Nicolau Copernicus Observatory, Torun, Poland
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- Moran, J.M. (author)
- Center for Astrophysics, 60 Garden Street, Cambridge MA 02138, U.S.A.
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- Morimoto, M. (author)
- Nobeyama Radio Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
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- Padin, S. (author)
- Owens Valley Observatory, California Institute of Technology, Pasadena CA 91125, U.S.A.
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- Plambeck, R.L. (author)
- University of California, Berkeley CA 94720, U.S.A.
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- Predmore, R. (author)
- FCRAO, Dept. of Physics and Astronomy, 619 Lederle Graduate Research Center, Univ. of Mass., Box 34517, Amherst, MA, U.S.A.
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- Rogers, A.E.E. (author)
- Northeast Radio Observatory Corp., Haystack Observatory, Westford MA 01886, U.S.A.
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- Schalinski, C. (author)
- IRAM, 300 rue de la Piscine, F-38406 St. Martin d’H`eres, France
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- Witzel, A. (author)
- Max-Planck-Institut fu ̈r Radioastronomie, Auf dem Huegel 69, D-53121 Bonn, Germany
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- Woody, D. (author)
- Owens Valley Observatory, California Institute of Technology, Pasadena CA 91125, U.S.A.
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- Wright, M.C.H. (author)
- University of California, Berkeley CA 94720, U.S.A.
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- Zensus, A. (author)
- NRAO, Socorro NM 87801, U.S.A.
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(creator_code:org_t)
- Berlin : Springer-Verlag, 1998
- 1998
- Swedish.
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In: Astronomy and Astrophysics. - Berlin : Springer-Verlag. - 0004-6361 .- 1432-0746. ; 131, s. 451-467
- Related links:
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https://hh.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Subject headings
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- We present 15 images from the global mm-VLBI sessions in 1990 April at 100 GHz and 1993 April at 86 GHz. These observations probe the central engines of the 16 observed AGN's with up to 50 mu as resolution. Among other sources previously observed with lambda 3 mm VLBI we present the first lambda 3 mm maps of 0735+178, 0748+126, 1055+018, 2145+067, and CTA102, in total we have been able to image 13 out of the 16 observed sources. 6 out of the 13 imaged sources observed exhibit curvature and rapid structural changes, although the low dynamic range in two thirds of the maps limits the detection of weak features. Most of the sources have unresolved cores even at this high resolution. There is substantial evidence that the observed sources can be grouped into two general groups: A misaligned population with parsec scale jets in the form of low pitch helices and an aligned population with straight jets with small changes in PA due to intrinsic bends.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- GALAXIES: JETS
- JETS
- RADIO CONTINUUM: GALAXIES
- GALAXIES: ACTIVE
- GALAXIES: NUCLEI
- NATURAL SCIENCES
- NATURVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Rantakyrö, F.T.
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Bååth, Lars B.
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Backer, D.C.
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Booth, R.S.
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Carlström, J.E.
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Emerson, D.T.
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Grewing, M.
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Hirabayashi, H.
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Hodges, M.W.
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Inoue, M.
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Kobayashi, H.
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Krichbaum, T. P.
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Kus, A.J.
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Moran, J.M.
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Morimoto, M.
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Padin, S.
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Plambeck, R.L.
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Predmore, R.
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Rogers, A.E.E.
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Schalinski, C.
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Witzel, A.
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Woody, D.
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Wright, M.C.H.
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Zensus, A.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Halmstad University