Forschungsthemen

Forschungsthemen der Abteilung PSF

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How do the most massive stars in our and other Galaxies form? How do they shape their clustered environment as well as the interstellar medium (ISM)?

High-Mass Star Formation

How do the most massive stars in our and other Galaxies form? How do they shape their clustered environment as well as the interstellar medium (ISM)? [mehr]
Most of the initial gas mass in the Milky Way has been converted into stars. While massive stars and their final stages dominate the energy input into the interstellar medium, low-mass stars constitute most of the total mass in our galaxy.

Low-Mass Star Formation

Most of the initial gas mass in the Milky Way has been converted into stars. While massive stars and their final stages dominate the energy input into the interstellar medium, low-mass stars constitute most of the total mass in our galaxy. [mehr]
There is a wealth of molecules out in the Universe constituting the material of galaxies, stars, planets and everything in between. Surprisingly chemically rich, various cosmic environments reveal distinct degrees of chemical complexity that we can study via multi-wavelength observations of molecular emission lines.

Cloud and Disk Chemistry

There is a wealth of molecules out in the Universe constituting the material of galaxies, stars, planets and everything in between. Surprisingly chemically rich, various cosmic environments reveal distinct degrees of chemical complexity that we can study via multi-wavelength observations of molecular emission lines. [mehr]
Protoplanetary disks around young stars are the birthplaces of planetary systems. Most of their mass is in the form of molecular hydrogen with small admixtures of solid particles. The initially micron-sized particles grow through mutual collisions to form larger meter-sized bodies with further growth potentially assisted by gravitational instabilities in dense dust layers.

Disks and Extrasolar Planets

Protoplanetary disks around young stars are the birthplaces of planetary systems. Most of their mass is in the form of molecular hydrogen with small admixtures of solid particles. The initially micron-sized particles grow through mutual collisions to form larger meter-sized bodies with further growth potentially assisted by gravitational instabilities in dense dust layers. [mehr]
Exoplanets - planets around star other than the sun - are nowadays being found by the dozens and start to be characterized in detail now.

Planet Hunting

Exoplanets - planets around star other than the sun - are nowadays being found by the dozens and start to be characterized in detail now. [mehr]
The new generation of 8m-class telescopes and sensitive infrared instruments facilitates studies of the stellar populations in young, massive clusters down to substellar masses, despite their much larger distance than the typical low-mass star formation regions in out solar neighbourhood.

Young Stellar Clusters

The new generation of 8m-class telescopes and sensitive infrared instruments facilitates studies of the stellar populations in young, massive clusters down to substellar masses, despite their much larger distance than the typical low-mass star formation regions in out solar neighbourhood. [mehr]
Our understanding of some of the key astrophysical processes in the interstellar medium and circumstellar environments is based on the understanding of the physical and chemical processes that generate and modify dust grains and molecules under different conditions.

Laboratory Astrophysics

Our understanding of some of the key astrophysical processes in the interstellar medium and circumstellar environments is based on the understanding of the physical and chemical processes that generate and modify dust grains and molecules under different conditions. [mehr]
Our theoretical research is focused on magneto and radiation hydro dynamical models for the formation of stars and planets.

Theoretical Modelling

Our theoretical research is focused on magneto and radiation hydro dynamical models for the formation of stars and planets. [mehr]
Most of the initial gas mass in our Galaxy has been converted into stars. While massive stars and their final stages dominate the energy input into the interstellar medium, low-mass and solar-type constitute most of the total mass in our galaxy. It is generally accepted that stars form by gravitational collapse of dusty molecular cloud cores.

Early phases of star formation

Most of the initial gas mass in our Galaxy has been converted into stars. While massive stars and their final stages dominate the energy input into the interstellar medium, low-mass and solar-type constitute most of the total mass in our galaxy. It is generally accepted that stars form by gravitational collapse of dusty molecular cloud cores. [mehr]
Today several thousand exoplanets, planets around stars other than our Sun, are known. Interestingly, the masses and radii of the exoplanets discovered so far, revealed especially by the Kepler survey and ancillary observations, appear hugely diverse: from massive, scorching hot Jovian mass to rocky planets in sizes and radii similar to Earth.

Exoplanet Characterization

Today several thousand exoplanets, planets around stars other than our Sun, are known. Interestingly, the masses and radii of the exoplanets discovered so far, revealed especially by the Kepler survey and ancillary observations, appear hugely diverse: from massive, scorching hot Jovian mass to rocky planets in sizes and radii similar to Earth. [mehr]
 
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