Tagungsband der 53. Studentischen Tagung Sprachwissenschaft (StuTS), 9. – 12. Mai 2013, LMU

Im vorliegenden Tagungsband sind zehn Vorträge, die auf der 53. Studentischen Tagung Sprachwissenschaft (StuTS) vom 9.-12.05.2013 an der LMU in München gehalten wurden, gesammelt. Die Autoren sind Studenten der Linguistik von verschiedenen Universitäten in Deutschland und im europäischen Ausland. Ihre Aufsätze behandeln Themen, mit denen sich die Studenten in Seminaren und in Abschlussarbeiten beschäftigt haben. Die Aufsätze wurden von anderen Teilnehmern der Tagung in einem Peer Review überprüft

Evaluierung des LBG OIS Centers und des LGB Career Centers

Die vorliegende Studie wurde von der Ludwig Boltzmann Gesellschaft (LBG) und dem Bundesministerium für Bildung, Wissenschaft und Forschung (BMBWF) beauftragt und im Zeitraum zwischen 1. September 2022 und 31. März 2023 durchgeführt. Ziel der Studie ist es, das Open Innovation in Science (OIS) Center und das Career Center (CC) der LBG zu evaluieren und mögliche Szenarien für ihre Weiterentwicklung aufzuzeigen. Der empirische Teil der Evaluierungsstudie fußt auf einem Mixed Methods-Forschungsdesign, bestehend aus qualitativen und quantitativen Erhebungs- und Auswertungsinstrumenten, welche u.a. eine standardisierte Online-Befragung, insgesamt 111 leitfadengestützte qualitative Interviews, eine komparative und eine kontrafaktische Analyse sowie die Reflexion mit einem eigens für jedes Center eingerichteten Sounding Board beinhalten

Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

Abstract: In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting supermassive black hole of mass ∼6.5 × 109 M ⊙. The EHTC also partnered with several international facilities in space and on the ground, to arrange an extensive, quasi-simultaneous multi-wavelength campaign. This Letter presents the results and analysis of this campaign, as well as the multi-wavelength data as a legacy data repository. We captured M87 in a historically low state, and the core flux dominates over HST-1 at high energies, making it possible to combine core flux constraints with the more spatially precise very long baseline interferometry data. We present the most complete simultaneous multi-wavelength spectrum of the active nucleus to date, and discuss the complexity and caveats of combining data from different spatial scales into one broadband spectrum. We apply two heuristic, isotropic leptonic single-zone models to provide insight into the basic source properties, but conclude that a structured jet is necessary to explain M87’s spectrum. We can exclude that the simultaneous γ-ray emission is produced via inverse Compton emission in the same region producing the EHT mm-band emission, and further conclude that the γ-rays can only be produced in the inner jets (inward of HST-1) if there are strongly particle-dominated regions. Direct synchrotron emission from accelerated protons and secondaries cannot yet be excluded

Extreme blazars under the eyes of MAGIC

Extreme high-frequency-peaked BL Lac objects (EHBLs) are the most energetic persistent sources in the universe. This contribution reports on long-term observing campaigns of tens of EHBLs that have been organized by the MAGIC collaboration to enlarge their population at VHE and understand the origin of their extreme properties. EHBLs are characterized by a spectral energy distribution (SED) featuring a synchrotron peak energy above 1 keV. Several EHBLs display a hard spectral index at very high energies (VHE; E > 100 GeV), suggesting a gamma-ray SED component peaking significantly above 1 TeV. Such extreme properties are challenging current standard emission and acceleration mechanisms. Recent studies have also unveiled intriguing disparities in the temporal characteristics of EHBLs. Some sources seem to display a persistent EHBL behaviour, while others belong to the EHBL family only temporarily. Here, we present recent results of the first hard-TeV EHBL catalog. The MAGIC observations are accompanied by an extensive multiwavelength coverage to obtain an optimal determination of the SED. This allow us to investigate leptonic and hadronic scenarios for the emission. We also present the recent detection of the EHBL RX J0812.0+0237 in the VHE band by MAGIC. Finally, we discuss a broad multiwavelength campaign on the BL Lac type object 1ES 2344+514, which showed intermittent EHBL characteristics in August 2016

Star tracking for pointing determination of Imaging Atmospheric Cherenkov Telescopes. Application to the Large-Sized Telescope of the Cherenkov Telescope Array

International audienc

Star tracking for pointing determination of Imaging Atmospheric Cherenkov Telescopes. Application to the Large-Sized Telescope of the Cherenkov Telescope Array

International audienc