hh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Multifrequency interferometer and radio continuum monitoring observations of CTA 102
European Southern Observatory, Casilla 19001, Santiago 19, Chile; Observatorio Cerro Calan, Universidad de Chile, Santiago, Chile.
Tuorla Observatory, Väisäläntie 20, 21500 Piikkiö, Finland.
Metsähovi Radio Observatory, Metsähovintie 114, 02540 Kylmälä, Finland.
Tuorla Observatory, Väisäläntie 20, 21500 Piikkiö, Finland; Department of Physical Sciences, University of Turku, 20100 Turku, Finland.
Show others and affiliations
2003 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 42, no 5, p. 473-485Article in journal (Refereed) Published
Abstract [en]

This paper represents the work of several years of observation of CTA 102 with both single dish telescopes and

interferometric arrays, covering wavelengths from 1.2 cm to 1.3 mm. The resolution of the maps covers an order of magnitude

from 0.5 mas to 50 μas. The images presented demonstrate the rapid structural changes in this source. These rapid structural

changes correlates with the outbursts seen in the total flux, turnover frequency and in the spectral index. We have calculated the

Brightness Temperatures of the components (TB ) directly from the determined component sizes and also using the logarithmic

variability amplitudes and timescales to calculate the TB s. Both the methods yielded measurements of source frame T Bs no

higher than

∼a few × 10

12

K. We find that the observed average proper motion is

0.4 0.07 mas/yr, which corresponds to an

apparent transverse velocity of 11

± 2 c.

Place, publisher, year, edition, pages
Berlin: Springer-Verlag , 2003. Vol. 42, no 5, p. 473-485
Keywords [en]
Shock waves, Quasars, Jets, Radiation mechanisms, CTA102
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-715DOI: 10.1051/0004-6361:20030579ISI: 000183615700011Scopus ID: 2-s2.0-0038722285Local ID: 2082/1064OAI: oai:DiVA.org:hh-715DiVA, id: diva2:237933
Note
Copyright © 2003 EDP Sciences. This material is posted here with permission of EDP Sciences. Such permission of EDP Sciences does not in any way imply EDP Sciences endorsement of any of the University of Halmstads's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from EDP Sciences. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.Available from: 2007-06-04 Created: 2007-06-04 Last updated: 2017-12-13Bibliographically approved

Open Access in DiVA

fulltext(893 kB)285 downloads
File information
File name FULLTEXT01.pdfFile size 893 kBChecksum MD5
32f23072c0f01238123c29e0203f538bb475c9697f9e9005eec4c077fc865617b7f849f69d0d930665206a8b2e7d70395991f00dadf58066cf11224af3326de42720eaf6dfea41bd1b0c2e667b8d5ae3
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records BETA

Bååth, Lars B.

Search in DiVA

By author/editor
Bååth, Lars B.
By organisation
School of Information Science, Computer and Electrical Engineering (IDE)
In the same journal
Astronomy and Astrophysics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 285 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 190 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf