E-Dissertationen: Search
Now showing items 31-40 of 54
Evolution of short-period massive binary stars in the Magellanic Clouds
(2022-10-14)
Massive stars tend to form in close binaries that will interact during their lifetime. Up to one-third of them are so close that they undergo mass transfer during hydrogen burning and yield most of the observable ...
Improved techniques for pulsar data analysis
(2021-09-29)
Pulsars are rapidly rotating, strongly magnetised neutron stars with spin periods ranging from few milliseconds to tens of seconds. They emit beams of electromagnetic radiation that are predominantly detected as periodic ...
The Transient Radio Sky: Pulsars and Fast Radio Bursts
(2021-09-17)
This thesis focuses on targeted searches of two radio transients associated with neutron stars (NS): Pulsars and Fast Radio Bursts (FRBs), and the study of their properties over different timescales. Pulsars emit beams of ...
Progenitor Stars of Hydrogen- and Helium-Deficient Astrophysical Transients
(2021-01-22)
Massive stars are among the most influential components of the Universe. They house nuclear reactions that transmute hydrogen and helium, the two elements produced with the highest abundance after the Big Bang, into heavier ...
High redshift galaxy groups as seen by Athena
(2022-01-03)
The first massive galaxy groups in the Universe are predicted to have formed at redshifts well beyond two. Baryonic physics, like stellar and active galactic nuclei (AGN) feedback in this very active epoch, are expected ...
Enabling wide-field, high-spatial-resolution fast transient searches on modern interferometry
(2022-04-13)
Fast transients reveal the energetic universe to us. They are usually the products of rapid and enormous energy releases. To study the physical nature behind them, we must know the subtle temporal structure of the signal ...
GLOSTAR: Investigating Tracers of Early High-Mass Star Formation
(2023-05-12)
High-mass stars (>8 msol) are not as numerous as their less massive counterparts but have a much more profound impact on their environment within their native galaxies. Despite their importance, our understanding of their ...
Molecular diversity in early stage high-mass protostars
(2022-11-30)
During star formation, the molecular gas undergoes significant chemical evolution with the emergence of dense cores harboring hot cores and hot corinos, rich in complex organic molecules (COMs). The formation pathways, ...
Unraveling Molecular Gas Conditions across Nearby Galaxies with CO Isotopologues
(2022-12-07)
In general, we associate large spatial scales, heavy massive objects, and great distances with the scientific study of Astronomy. However, in this thesis, we study the tiny hydrogen molecule, H2, which populates ......
Exploring the Epoch of Reionization with Line-Intensity Mapping
(2023-11-20)
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