Is this you? Create Your Porfile
Avatar

A. Witzel

Network

Latest external collaboration on country level. Dive into details by clicking on the dots.

Explore More

Hotspot

Dive into the research topics where A. Witzel is active.

Explore More

Publication

Featured researches published by A. Witzel.

Archive | 1990

Detection of a New Component in the Peculiar Superluminal Quasar 4C 39.25

J. M. Marcaide; Antonio Alberdi; Pedro Elosegui; Alan P. Marscher; Youfeng Zhang; David B. Shaffer; Cornelius J. Schalinski; A. Witzel; Nicholas James Jackson; G. Sandell

Archive | 1980

The Structure of the Nucleus of the Seyfert Galaxy NGC1275

L. I. Matveenko; K. I. Kellermann; I. I. K. Pauliny-Toth; V. I. Kostenko; I. G. Moiseev; L. R. Kogan; A. Witzel; B. O. Ronnang; David B. Shaffer; E. Preuss

Archive | 1999

Landolt-Börnstein. Numerical data and functional relationships in science and technology. New Series. Group VI: Astronomy and astrophysics. Volume 3: Astronomy and astrophysics. Extension and supplement to Volume 2. Subvolume c: Interstellar matter, Galaxy, universe.

P. L. Biermann; Gerhard Borner; Max Camenzind; K. J. Fricke; B. Fuchs; R. Genzel; W. K. H. Huchtmeier; Hartmut Jahreiss; A. Just; B. F. Madore; Hagai Netzer; Herman P. Schwan; B. Wiebel-Sooth; A. Witzel; Hans-Dieter Zimmermann; Harry H. Voigt

Archive | 1999

Landolt-Börnstein: Numerical Data and Functional Relationships in Science and Technology - New Series¬Gruppe/Group 6 Astronomy and Astrophysics¬Volume 3 Voigt: Extension and Supplement to Volume 2¬Interstellar Matter, Galaxy, Universe

Hans-Heinrich Voigt; P. L. Biermann; Gerhard Borner; Max Camenzind; K. J. Fricke; B. Fuchs; R. Genzel; W. K. H. Huchtmeier; Hartmut Jahreiss; A. Just; B. F. Madore; Hagai Netzer; Herman P. Schwan; B. Wiebel-Sooth; A. Witzel; Hans-Dieter Zimmermann

Archive | 1996

Rate of Expansion and Spectral-index Map of SN 1993J

J. M. Marcaide; Antonio Alberdi; E. Ros; Philip J. Diamond; I. I. Shapiro; J. C. Guirado; D. L. Jones; T. P. Krichbaum; F. Mantovani; R. A. Preston; A. Rius; R. T. Schilizzi; C. Trigilio; Alan R. Whitney; A. Witzel

Archive | 1993

The milliarcsec jets of Cygnus X3

Cornelius J. Schalinski; A. Witzel; Keith Johnson; P. E. Pavelin; Richard J. Davis; Robert E. Spencer; Grazia Umana

Archive | 1993

Geodetic VLBI Monitoring: Parsec-scale structure of Extragalactic Radio Sources

Cornelius J. Schalinski; Silke Britzen; A. Witzel; Walter Alef; James E. Campbell

Archive | 1993

VLBI phase referencing at 5 degrees separation

Pedro Elosegui; J. M. Marcaide; Antonio Alberdi; M. I. Ratner; I. I. Shapiro; A. Quirrenbach; A. Witzel; F. Mantovani; A. Rius

Archive | 1987

Geodetic VLBI-monitoring of the milliarcsecond structures of extragalactic radio sources.

Cornelius J. Schalinski; Walter Alef; A. Witzel; James E. Campbell; R. Wynands; Horst Schuh; G. Zeppenfeld

Archive | 1986

Kurzzeit-Variabilitt extragalaktischer Radioquellen

A. Witzel; David S. Heeschen; Cornelius J. Schalinski; T. P. Krichbaum

Explore More

Collaboration

Dive into the A. Witzel's collaboration.

Top Co-Authors
Avatar

K. I. Kellermann

National Radio Astronomy Observatory

View shared research outputs
Top Co-Authors
Avatar

Antonio Alberdi

Spanish National Research Council

View shared research outputs
Top Co-Authors
Avatar

J. M. Marcaide

Spanish National Research Council

View shared research outputs
Top Co-Authors
Avatar

A. Eckart

Max Planck Society

View shared research outputs
Top Co-Authors
Avatar

A. Just

Heidelberg University

View shared research outputs
Top Co-Authors
Avatar

B. Fuchs

Heidelberg University

View shared research outputs
Top Co-Authors
Avatar

I. I. Shapiro

Harvard University

View shared research outputs
Top Co-Authors
Avatar

A. Rius

Spanish National Research Council

View shared research outputs
Top Co-Authors
Avatar

Pedro Elosegui

Spanish National Research Council

View shared research outputs
Top Co-Authors
Avatar

Peter L. Biermann

Max Planck Society

View shared research outputs
Explore More
Researchain Logo
Decentralizing Knowledge