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Can we constrain planetary mineralogy of the closest stars?

Can we constrain planetary mineralogy of the closest stars?

by Leonardo dos Santos | Dec 23, 2017 | Daily Paper Summaries

We can precisely measure chemical abundances for stars. This offers an intriguing possibility that we may, in the near future, start using these measurements to know more about the insides of rocky planets orbiting them.

On the origins of our interstellar visitor ‘Oumuamua

On the origins of our interstellar visitor ‘Oumuamua

by Leonardo dos Santos | Dec 20, 2017 | Daily Paper Summaries

Apparently, rocky asteroids like our interstellar visitor ‘Oumuamua are likely to be formed in binary stars.

Proxima Centauri sports a fancy dust ring

Proxima Centauri sports a fancy dust ring

by Leonardo dos Santos | Nov 16, 2017 | Daily Paper Summaries

Astronomers using ALMA have just discovered that our closest neighbor has at least one dust ring, analog to the Kuiper belt in the solar system. Sorry, but a reference to Lord of the Rings is unavoidable.

A history of water loss in the TRAPPIST-1 exoplanets

A history of water loss in the TRAPPIST-1 exoplanets

by Leonardo dos Santos | Sep 8, 2017 | Daily Paper Summaries

TRAPPIST-1 promises to be one of the best candidates for habitability in the solar neighborhood. Today we will see that the presence of a system-wide cloud of hydrogen could be traced to a history of water loss in the planets in this system.

The mass of Kepler-10c revisited: upping the radial velocities game

The mass of Kepler-10c revisited: upping the radial velocities game

by Leonardo dos Santos | Aug 7, 2017 | Daily Paper Summaries

In today’s paper, after years spent on an impasse, we finally arrive at a consensus on the mass of the rocky exoplanet Kepler-10c. The discussion yields many important lessons on how to properly analyze radial velocities.

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