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Planet Formation at Wide Orbits through Gravitational Instability

Gravity can induce global instabilities in disks around stars, which then collapse to form planets at different radii. Continue reading

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Please take Astrobites’ March Reader Survey

Even if you already took our first survey, you can help us improve Astrobites even more by taking our second very brief reader survey. There are just 6 short questions and it will only take a couple minutes. Continue reading

Everything you wanted to know about galaxies and AGN

We’re starting a new section of Astrobites we’re calling “Glossaries”. The first of these glossaries, on Galaxies and AGN, is now available. Continue reading

Data Mining: Is More Better?

Large sky surveys like SDSS and 2MASS have become widely successful and have prompted a next generation of dedicated survey telescopes like LSST, the Dark Energy Survey, and Pan-STARRS. These telescopes will unleash a tidal wave of data into astronomers’ open arms (or external hard drives). But how do you catch a tidal wave? Continue reading

Carbon chemistry in planetary nebulae

Planetary nebulae form during late stages of the evolution of low to intermediate mass stars. In this paper, Guzman-Ramirez et al. explore two possible explanations for the presence of carbon in Galactic Bulge planetary nebulae. Continue reading

Dense, Ionized Hydrogen near the Galactic Center of the Milky Way

It turns out that there is a lot more to the universe than just stars, planets, and galaxies. Much of the “empty space” between these objects is actually host to interesting astrophysical processes, such as star-formation in molecular clouds. Hot, young stars can emit strong radiation that will ionize the surrounding hydrogen gas. Astronomers call these dense regions of ionized hydrogen HII regions. Continue reading

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