The Formation of Elliptical Galaxies: A New Look at the Universe

The Formation of Elliptical Galaxies: A New Look at the Universe

The Big Bang, which occurred 13.8 billion years ago, marks the beginning of our time, space and matter. This fundamental cosmological truth is being researched more intensively today, especially through the work of Prof. Dr. Pavel Kroupa and Dr. Eda Gjergo, who focus on the formation of elliptical galaxies. Their studies show that 380,000 years after the Big Bang, the first atoms formed and the universe became translucent, leading to the creation of the cosmic background radiation. This radiation can still be detected today with highly sensitive telescopes, such as uni-bonn.de reported.

The researchers realized that elliptical galaxies formed in the early stages of the universe and formed large amounts of stars. These births of galaxies, which lasted only a few hundred million years, are short on a cosmological scale. A central aspect of their work is measuring the distance between these galaxies and calculating the time when they formed. Interestingly, some of the cosmic background radiation may possibly come from these first structures, with Kroupa suggesting that this could be around 1.4 percent.

Cosmological backgrounds

Measurements show that the background radiation is not homogeneous; rather, it shows small but significant differences in intensity. These variations suggest that matter gas was not evenly distributed after the Big Bang, leading to the formation of galaxies. The fluctuations in the background radiation are only a few thousandths of a percent. Such results raise questions and potentially challenge the standard model of cosmology. It may become necessary to reassess the history of the universe, says Kroupa.

Another area of ​​research concerns gravitational waves, which have been studied more intensively since Joseph Weber's first experiments in the 1960s. These waves, originally predicted theoretically by Albert Einstein, offer new ways to measure cosmic events such as collapsing stars and black holes. The first measurements in the last two decades were groundbreaking, showing that systems such as LIGO in the USA and Virgo in Europe are capable of registering such fine signals. Loud thphys.uni-heidelberg.de These systems are crucial for the further development of astronomy.

Future perspectives

Current and future gravitational wave detection projects include further developments and improved technologies. These include more powerful lasers and larger telescopes, as well as innovative approaches such as LISA, a planned space project scheduled to launch in 2010. It will consist of three satellites arranged in a special formation to measure the distances between test masses with picometer-level accuracy. These advances could provide fundamental insights into the universe and the events immediately after the Big Bang, resulting from mezdata.de is supported.