Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
Zooming towards the event horizon - mm-VLBI today and tomorrow. / Krichbaum, Thomas P.; Roy, A.; Wagner, J.; Rottmann, H.; Hodgson, J. A.; Bertarini, A.; Alef, W.; Zensus, J. A.; Marscher, A. P.; Jorstad, S. G.; Freund, R.; Marrone, D.; Strittmatter, P.; Ziurys, L.; Blundell, R.; Weintroub, J.; Young, K.; Fish, V.; Doeleman, S.; Bremer, M.; Sanchez, S.; Fuhrmann, L.; Angelakis, E.; Karamanavis, V.
в: Proceedings of Science, Том 2012-October, 2012.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
}
TY - JOUR
T1 - Zooming towards the event horizon - mm-VLBI today and tomorrow
AU - Krichbaum, Thomas P.
AU - Roy, A.
AU - Wagner, J.
AU - Rottmann, H.
AU - Hodgson, J. A.
AU - Bertarini, A.
AU - Alef, W.
AU - Zensus, J. A.
AU - Marscher, A. P.
AU - Jorstad, S. G.
AU - Freund, R.
AU - Marrone, D.
AU - Strittmatter, P.
AU - Ziurys, L.
AU - Blundell, R.
AU - Weintroub, J.
AU - Young, K.
AU - Fish, V.
AU - Doeleman, S.
AU - Bremer, M.
AU - Sanchez, S.
AU - Fuhrmann, L.
AU - Angelakis, E.
AU - Karamanavis, V.
N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
PY - 2012
Y1 - 2012
N2 - Global VLBI imaging at millimeter and sub-millimeter wavelengths overcomes the opacity barrier of synchrotron self-absorption in Active Galactic Nuclei (AGN) and opens the direct view into sub-pc scale regions not accessible before. Since AGN variability is more pronounced at short millimeter wavelength, mm-VLBI can reveal structural changes in very early stages after outbursts. When combined with observations at longer wavelength, global 3 mm and 1 mm VLBI adds very detailed information on the source structure. This helps to determine fundamental physical properties at the jet base, and in the vicinity of super-massive black holes at the center of AGN. Here we present new results from multi-frequency mm-VLBI imaging of OJ 287 during a major outburst. We also report on a successful 1.3 mm VLBI experiment with the APEX telescope in Chile. This observation sets a new world record in angular resolution. It also opens the path towards future mm-VLBI with ALMA, which aims at the mapping of the black hole event horizon in nearby galaxies, and the study of the roots of jets in AGN.
AB - Global VLBI imaging at millimeter and sub-millimeter wavelengths overcomes the opacity barrier of synchrotron self-absorption in Active Galactic Nuclei (AGN) and opens the direct view into sub-pc scale regions not accessible before. Since AGN variability is more pronounced at short millimeter wavelength, mm-VLBI can reveal structural changes in very early stages after outbursts. When combined with observations at longer wavelength, global 3 mm and 1 mm VLBI adds very detailed information on the source structure. This helps to determine fundamental physical properties at the jet base, and in the vicinity of super-massive black holes at the center of AGN. Here we present new results from multi-frequency mm-VLBI imaging of OJ 287 during a major outburst. We also report on a successful 1.3 mm VLBI experiment with the APEX telescope in Chile. This observation sets a new world record in angular resolution. It also opens the path towards future mm-VLBI with ALMA, which aims at the mapping of the black hole event horizon in nearby galaxies, and the study of the roots of jets in AGN.
UR - http://www.scopus.com/inward/record.url?scp=85052383011&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85052383011
VL - 2012-October
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
T2 - 11th European VLBI Network Symposium and Users Meeting, EVN Symposium 2012
Y2 - 9 October 2012 through 12 October 2012
ER -
ID: 88383578