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pro vyhledávání: '"Denise C. Gabuzda"'
Autor:
Denise C. Gabuzda
Publikováno v:
Galaxies, Vol 9, Iss 3, p 58 (2021)
In theoretical models for the electromagnetic launching of astrophysical jets, a helical magnetic (B)-field component is generated through the winding up of an initial longitudinal field component by the rotation of the cental black hole and accretio
Externí odkaz:
https://doaj.org/article/7e626151badc47cc9eed2d54004ae1b9
Autor:
Denise C. Gabuzda
Publikováno v:
Advances in Space Research. 65:731-738
The history of Very Long Baseline Interferometry (VLBI) observations has been characterized predominantly by an ongoing quest for increasingly high resolution and sensitivity. VLBI monitoring of relatively large samples of Active Galactic Nuclei (AGN
Autor:
Denise C. Gabuzda
Publikováno v:
Nature Astronomy. 5:982-983
New extremely high-resolution observations of the radio jets of the active galaxy Centaurus A have revealed striking brightening at the jet edges. This may be a common feature of jet outflows from active galaxies, but its origin remains unclear.
Autor:
Denise C. Gabuzda
Publikováno v:
Proceedings of the International Astronomical Union. 14:189-196
An abundance of information about the magnetic (B) fields of relativistic AGN jets has been obtained through radio polarization observations made on a wide range of scales, from the parsec scales probed by Very Long Baseline Interferometry to the kil
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 472:1792-1801
A number of groups have recently been active in searching for gradients in the ob- served Faraday rotation measure (RM) across jets of Active Galactic Nuclei (AGNs) on various scales and estimating their reliability. Such RM structures provide direct
Autor:
Sebastian Knuettel, Denise C. Gabuzda
Publikováno v:
Proceedings of 14th European VLBI Network Symposium & Users Meeting — PoS(EVN2018).
Helical fields are generally accepted as the magnetic field configuration associated with the launching of astrophysical jets, but it is unclear what role they play on the largest jet scales (if they persist to such distances from the central active
Publikováno v:
Proceedings of 14th European VLBI Network Symposium & Users Meeting — PoS(EVN2018).
We are in the process of obtaining and analysing VLBA polarisation data for the 191 Active Galactic Nuclei (AGNs) in the MOJAVE-II sample at 5.0, 2.3, 1.7 and 1.4 GHz (6, 13, 18, 21 cm) obtained in Summer 2017 - Spring 2018. This is the first set of
Autor:
Denise C. Gabuzda, Colm P. Coughlan
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 463:1980-2001
Radio polarisation images of the jets of Active Galactic Nuclei (AGN) can provide a deep insight into the launching and collimation mechanisms of relativistic jets. However, even at VLBI scales, resolution is often a limiting factor in the conclusion
The currents carried by the jets of active galactic nuclei (AGNs) can be probed using maps of the Faraday rotation measure (RM), since a jet current will be accompanied by a toroidal magnetic (B) field, which will give rise to a systematic change in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4d5cb22abb40dce81602e92804fecff
http://arxiv.org/abs/1712.08414
http://arxiv.org/abs/1712.08414
Publikováno v:
Galaxies, Vol 5, Iss 4, p 61 (2017)
Galaxies; Volume 5; Issue 4; Pages: 61
Galaxies; Volume 5; Issue 4; Pages: 61
Though helical magnetic fields are generally believed to arise when the jets of Active Galactic Nuclei (AGN) are launched, it is still unclear what role they play (and if they survive) to the largest jet scales. A helical or toroidal B-field may cont