Daily paper summaries

This category contains 871 posts

The Sun and its Iron Fist

We thought we know our Sun well, since it’s one of the most heavily and closely studied astrophysical objects. Nevertheless, certain aspects of the Sun still linger out of our grasp.

Two Winds

In today’s paper, Rezzolla and Kumar present a solution to the x-ray afterglow problem for the short gamma ray burst model. They show that x-rays can glow steadily for hours after the initial gamma ray emission due to the interactions of a slow and a fast wind.

Shedding Light on Galaxy Formation

Feedback processes, like supernova and AGN, are essential for accurately simulation galaxy formation and evolution. Today’s astrobite examines the role of radiation feedback in galaxy formation in new “radiation hydrodynamics” simulations of galaxies.

Evryscope, Greek for “wide-seeing”

Everyscope: Opening a new window into time-resolved astronomy.

Simulating X-ray Binary Winds

In today’s paper, Čechura and Hadrava examine what happens to the runaway gas from the surface of massive stars—the stellar wind. In particular, they look at systems with massive stars so close to a companion neutron star or black hole that the stellar wind is jarred into a new orbit and heated to the point of emitting X-rays.

Are There Age Spreads in Intermediate Age Clusters?

Can stellar clusters be host to multiple star formation events? The authors of today’s paper take a closer look…

Are There Two Missing Planets In The Solar System?

For years astronomers have wondered if there might be more planets in the Solar System, far beyond the orbit of Neptune. Although we now know for certain that there are no large gas giants left to be discovered, a recent finding has prompted the authors of this paper to propose the existence of not one, but two smaller planets in the outer Solar System.

Delphic Dwarfs and the Nature of Dark Matter

Dwarf galaxies have long been vaunted a useful probe for dark matter physics due to their high dark matter content. But is this true for all dwarfs, particularly the smallest ones? And can the minority baryons affect dark matter signatures?

Molecular Gas in Post-Starburst Galaxies

What makes galaxies stop forming stars? Is gas removed entirely, or simply heated to prevent stars from forming? Today’s paper uses observations of carbon monoxide in post-starburst galaxies to try to answer this question.

Relevance of magnetic dissipation on star formation

Magnetic fields are a crucial part of star formation. Read on whether and how the magnetic field strength dissipates during the early collapsing phase.

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