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star formation

This tag is associated with 88 posts

Over My Dead Body: Keeping Dead Galaxies from Forming New Stars

The authors of this paper pursued a mechanism which could possibly keep dead galaxies from forming new stars: mass ejected from AGB stars moving through the galaxy could heat the ambient gas.

Tipping the Spherical Cow: The Initial Conditions of Star Formation

Spherical cows have a long and storied history in physics, but does this type of crude approximation lead to realistic conclusions in the case of star formation? The combination of large- and small- scale simulations tests this idea.

Measuring Galaxy Star Formation

How well do the current methods of measuring the star formation rate of galaxies match then known star formation rate in simulations?

Shutting off Star Formation in Galaxies

As galaxies evolve they eventually stop forming stars. There are a host of (sometimes violent) processes that can end star formation in galaxies. The authors examine how galaxy mass plays a role in stopping star formation for nearby galaxies.

Star Formation on a String

What’s causing the “beads on a string” pattern of star formation around this interacting galaxy pair?

Accretion in Young Stars

What might be causing the accretion rates in newly formed stars to remain so high?

Filling the redshift gap with carbon monoxide mapping

Can we find galaxies using the light emitted by their star forming regions? The authors of this paper explore a technique that would allow us to reach relatively unexplored epochs of the Universe.

Massive Stars Don’t Make Good Neighbors

Massive stars emit energetic radiation and expel strong winds that can disrupt their natal environments. New simulations show that these effects are important in the evolution of stellar nurseries and can account for some of the observed low efficiency of star formation.

Forming Stars in the Stream

Orbiting our galaxy are many smaller dwarf galaxies. As they orbit, some of these galaxies produce vast streams of gas that stretch around our Milky Way galaxy. Much of this gas still has the potential for forming stars. This astrobite will summarize a recent discovery of one of these stars.

Modeling Histories of Star Formation

The authors use a cosmological simulation to characterize the rates at which galaxies form new stars.

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