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This category contains 852 posts

More Bang for your Buck: Getting the Most out of Your Transit Light Curves

The Kepler Mission has measured planet radii and orbital periods for 3,000+ light curves. So what is next? Either we convince the continental USA to become amateur astronomers… Or we figure out ways to retrieve more planetary parameters from the Kepler data set. I’ll stick with the later. And so will the authors or this paper.

Characterizing Cepheid Light Curves

Distance is a tricky thing to measure in astronomy. We can’t use tape measures or rulers, and even more sophisticated methods like laser ranging are only good for the very nearest of neighbors, like the moon. That’s where distance indicators like Cepheids come in.

Flying Free: A Supermassive Black Hole Kicked Out Of Its Galaxy

The space between galaxies, long thought to be a near empty void, is now rapidly being revealed to be home to a host of astronomical phenomena. Now astronomers may have added a new type of intergalactic resident to the list: a super-massive black hole, a million times the mass of the Sun, kicked out from its home galaxy.

El Gordo: A Spectacular(… and Theoretically Impossible?) Merger

The El Gordo (in Spanish, “the fat one”), one of the most massive galaxy clusters observed, is an active merger of two large subclusters. Unraveling its dynamics provides insights into $latex \Lambda$CDM.

Tick Tock of a Double Celestial Clock: Discovery of a New Stellar Remnant System

The recent discovery of two pulsating, compact stellar remnants intertwined in a binary system has uncovered a system never-before observed in our Universe, and will offer new avenues for studying the exotic objects involved.

Origin of water in the solar system is interstellar

Water is essential for life, but where does it come from? Read on and learn that a significant amount is inherited from the interstellar medium.

Counting Stellar Corpses: Rethinking the Variable Initial Mass Function?

Sometimes stellar remnants cannibalize other stars, emitting x-rays that can be detected in distant galaxies. Learn how making a careful tally of these gruesome events can reveal how stars are formed.

Habitability Whether Rocks Weather or Not?

Habitable zone estimations take the climate regulation of the carbon cycle into account. But are we drawing the edges of the habitable zone too wide?

Asteroseismic Spin Drs

If you didn’t know already, asteroseismology is awesome. Read on to hear why…

Orderly disorder: Simulations of planet-disk dynamics with AREPO

Only the combined effort of observational and theoretical methods can really bring us to a more thorough understanding of the Universe throughout all spatial scales. The authors of today’s paper use and adapt the moving-mesh fluid mechanics code AREPO to function with protoplanetary disks and test its imprint on the potential of planets to open up gaps in the surrounding gas.

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