Science symposium: "Radio astronomy in the multi-frequency era", part I
- Matthias Chair: Kadler ()
Dr. Caterina Tiburzi (MPIfR/Universitaet Bielefeld)
The International LOFAR stations in Germany are mainly dedicated to pulsar observations. An unprecedented pulsar monitoring campaign has been carried out since 2013, thus enabling a variety of research topics. Such topics are mainly focused on interstellar medium (ISM) studies, and range from variations in the ISM electron content to Solar wind probing. I will describe this unique and...
Dr. Christian Vocks (Leibniz-Institut für Astrophysik Potsdam)
The solar corona is the hot, tenuous outer atmosphere of the Sun. It is highly structured due to coronal magnetic fields, but generally shows a barometric density profile along magnetic fields, for altitudes well below the sonic critical point that marks the transition towards the supersonic solar wind. If the Sun is observed at a given radio frequency, then the corona becomes opaque below the...
Dr. Volker Heesen (Univ. of Hamburg)
We present first results of our survey of nearby galaxies with 140-MHz data from pointed observations and from the LOFAR 2-m Sky Survey (LoTSS). With the facet calibration technique we are now able to reach an rms noise level close to the thermal noise of ~150 µJy/beam at 7—10 arcsec spatial resolution. These maps are sensitivity matched with medium-deep (1 hr) observations of other...
Mr. Stefan Blex (AIRUB)
I will present the current status of the main part of my PhD project, the LOFAR observation of NGC 4631. NGC 4631 is a large edge-on spiral galaxy with high star formation rate and strongly interacts with NGC 4627 and NGC 4656/7. NGC 4631 also exhibits a large, prominent halo of warm and hot ionized gas. NGC 4631 has been observed as part of the LOFAR Survey of nearby galaxies with the LOFAR...
Ms. Kamlesh Rajpurohit (Thüringer Landessternwarte Tautenburg)
We present the results of deep L-band VLA observations of the merging galaxy cluster 1RXS J0603.3+4214, which host one of the brightest relics, known as Toothbrush, and an elongated giant radio halo. Our new VLA images provide an unprecedented detailed view of the Toothbrush, revealing enigmatic filamentary structures. These VLA observations in combination with GMRT and LOFAR data, allowed us...