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stellar winds

This tag is associated with 5 posts
Model Transit Light Curve

Mapping Magnetic Fields with Exoplanet Transits

Transit observations can yield a lot of information about exoplanets. If a transiting exoplanet encounters stellar wind, the bow shock created can show up in the transit light curves. In this paper, the authors investigate how the stellar wind of a star can shape the light curves we observe.

HAWK-I image of the Sickle

The Mystery of the Sickle in the Carina Nebula

There’s a strange sickle-shaped object in the Carina Nebula. The authors of this paper used observations at several different wavelengths to investigate the nature of this intriguing nebula, leading to some interesting discoveries and even more questions.

A Novel Approach of Determining the Mass-loss Rates of Massive Stars

These authors describe a novel method to determine the mass-loss rates of massive runaway stars.

This star lives in exciting times, or, How did Betelgeuse make that funny shape?

Sometimes we see strange shapes when we look through our fancy telescopes and we’re left wondering how they formed. How did the rings and “pearls” of SN1987A form? Or the hexagonal cloud pattern on Saturn? The star Betelgeuse – famous for being Orion’s left shoulder – presents another unusual geometric appearance.

Explaining puffy planets

Dozens of the transiting exoplanets discovered to date have radii that are significantly larger than expected, leading astronomers to refer to them as puffy or inflated. Although tidal heating has had some success modeling puffy planets, these authors continue work on a new mechanism which employs planetary magnetic fields. 

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