Towards solar radio imaging with LOFAR
O. Wucknitz
- Argelander-Institut für Astronomie, Auf dem Hügel 71, 53121 Bonn, Germany
Abstract
After an introduction to my long-baseline work with LOFAR, I discuss the
application of similar methods for solar imaging with LOFAR. I present the
first resolved images and movies of the Sun and discuss particular issues of
solar imaging with LOFAR. Main problem are the strong variability of the Sun
as a function of time and frequencies. This prevents us from using Earth
rotation synthesis and multi-frequency synthesis to fill the uv plane.
download original presentation
PDF file (4.6 MB, last change 9 Nov 2010)
46 pages (many of those are additional material), suitable for presentation with acroread. This version also includes some hyperlinks for quick navigation and links to references.
download printable version (small)
PDF file (2.2 MB, last change 9 Nov 2010)
Paper saving version. 6 pages, text in b/w, colour figures. 8 slides per A4 page.
download movie 1: single-band delay/rate 3C196 20 Aug 2009, DE-NL
GIF file (700.0 kB, last change 29 Sep 2009)
download movie 2: coherent multi-band delay/rate 3C196 20 Aug 2009, DE-NL
GIF file (1.1 MB, last change 29 Sep 2009)
download movie 3: incoherent multi-band delay/rate 3C196 Unterweilenbach-Tautenburg
MPEG4 movie (8.2 MB, last change 16 Feb 2010)
download movie 4: the Sun with 10 sec integration time per step, real duration ca. 10
min, about 10:16:30 - 10:26:20 on 9-Jun-2010, plays 100 times
faster than real-time
MPEG4 movie (176.3 kB, last change 8 Jul 2010)
download movie 5: the Sun with 1 sec integration time per step, real duration 30
sec, about 10:17:10 - 10:17:40 on 9-Jun-2010, plays in real-time
MPEG4 movie (129.9 kB, last change 8 Jul 2010)
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Script last modified on 7 Sep 2010
Last change to this data base entry on 4 Nov 2010