Location & approach

By car

The campus of the Technical University of Dortmund is located near the freeway junction Dortmund West, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, the Dortmund-Dorstfeld exit on the A40 leads to the North Campus. The university is signposted at both exits.

By bus and train

The "Dortmund Universität" S-Bahn station is located directly on the North Campus. From there, the S-Bahn line S1 runs every 20 or 30 minutes to Dortmund main station and in the opposite direction to Düsseldorf main station via Bochum, Essen and Duisburg. In addition, the university can be reached by bus lines 445, 447 and 462. Timetable information can be found on the homepage of the Rhine-Ruhr transport association, and DSW21 also offer an interactive route network map.

The H-Bahn

One of the landmarks of the TU Dortmund is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 commutes every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By plane

From Dortmund Airport, it takes just over 20 minutes to get to Dortmund Central Station by AirportExpress and from there to the university by S-Bahn. A wider range of international flight connections is offered by Düsseldorf Airport, about 60 kilometers away, which can be reached directly by S-Bahn from the university's train station.

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Location & approach

By car

The campus of the Technical University of Dortmund is located near the freeway junction Dortmund West, where the Sauerland line A45 crosses the Ruhr expressway B1/A40. The Dortmund-Eichlinghofen exit on the A45 leads to the South Campus, the Dortmund-Dorstfeld exit on the A40 leads to the North Campus. The university is signposted at both exits.

By bus and train

The "Dortmund Universität" S-Bahn station is located directly on the North Campus. From there, the S-Bahn line S1 runs every 20 or 30 minutes to Dortmund main station and in the opposite direction to Düsseldorf main station via Bochum, Essen and Duisburg. In addition, the university can be reached by bus lines 445, 447 and 462. Timetable information can be found on the homepage of the Rhine-Ruhr transport association, and DSW21 also offer an interactive route network map.

The H-Bahn

One of the landmarks of the TU Dortmund is the H-Bahn. Line 1 runs every 10 minutes between Dortmund Eichlinghofen and the Technology Center via Campus South and Dortmund University S, while Line 2 commutes every 5 minutes between Campus North and Campus South. It covers this distance in two minutes.

By plane

From Dortmund Airport, it takes just over 20 minutes to get to Dortmund Central Station by AirportExpress and from there to the university by S-Bahn. A wider range of international flight connections is offered by Düsseldorf Airport, about 60 kilometers away, which can be reached directly by S-Bahn from the university's train station.

ServicePortal UniMail

Particle colloquium: The solar axion quest

Summer semester 2024 Location: CP-03-123

On 26.06 Dr. Dr. Jamie Ruz Armendáriz from the University of Zaragoza will give a lecture on "The solar axion quest".

Abstract:
The nature of dark matter in the universe remains an open question in astrophysics and cosmology. Axions and axion-like particles (ALPs) offer a compelling solution, though ground-based experiments have yet to detect these hypothetical low-mass particles expected to be produced in large quantities in the strong electromagnetic fields within stars. This talk presents a fresh perspective on the quest for axions, including a historical review of helioscope techniques used in SUMICO, CAST, and future IAXO.
Novel approaches to axion searches will also be explored, highlighting that axions/ALPs could provide unique signatures in our Sun's emission spectra from their conversion in the magnetic field of the Sun's atmosphere, rather than in a laboratory magnetic field. The talk will cover radio-Sun axions searches and dedicated spacecraft solar observations in the hunt for these elusive particles.
Data acquired with the Nuclear Spectroscopic Telescope Array (NuSTAR) during solar observations in 2020 allows us to set stringent limits on the coupling of axions to photons by applying validated magnetic field models of the solar atmosphere. We report pioneering limits on the axion-photon coupling strength gag < 7x10-12 GeV-1 at the 95% C.L. for axion masses ma < 5x10-7 eV, surpassing current ground-based limits and probing unexplored regions of the axion-photon coupling parameter space.

Further information can be found in the related Indico entry.