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magnetic fields

This tag is associated with 16 posts

Can planets and stars spin in unison?

The orbits of some recently discovered exoplanets seem to be synchronised with the rotation of their host stars. Can this mystery be explained?

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.

Atmospheric circulation on hot exoplanets: What about magnets?

Astronomers love to ignore magnetic fields. But they may strongly affect the pattern of atmospheric circulation in hot Jupiters.

An Astronomical (Anti-)Glitch

The authors of this article observe a sudden slowing in the rotation rate of a known magnetar. Although hundreds of glitches (a sudden increase in rotation rate) have been observed in radio pulsars and magnetars, this is the first direct evidence for an anti-glitch.

UR#6: Neutrinos and ICM Magnetic Fields

The undergraduate research series has been revived! This month’s post features research on neutrinos from failed supernovae and compact-object mergers, as well as research on magnetic fields in the intracluster medium.

A New Pulsating, Magnetic, Carbon Atmosphere White Dwarf

The authors present the discovery of a new hot carbon-atmosphere white dwarf with a strong magnetic field. This discovery might help illuminate the origins of a recently found class of white dwarfs.

The effect of magnetic fields on star formation

Boss & Keiser examine how magnetic fields with varying initial conditions affect star formation.

Into the Void

Voids in the cosmic web are observed to be contain large-scale magnetic fields … but it’s unclear how this happens. In this paper, the authors suggest two possible explanations.

M Dwarfs Are Not Passé

This paper delves into some of the physical properties of early M dwarfs (M0-M4.5), focusing on chromospheric/magnetic activity and rotation. The authors present a catalog of activity and rotation for 334 early M dwarfs.

Making Baby Discs Around Baby Stars: Circumventing the Magnetic Braking Catastrophe

In this article the authors simulate the collapse of a magnetized, turbulent molecular cloud core to see if rotationally supported discs can form around central protostars.

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