This tag is associated with 218 posts

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.

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.

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.

ASASSN-13co: A Type-Defying Supernova

There are arguably a lot of things defy categorization, but it’s not everyday that we find something that suggests we do away with our categories altogether. The authors of today’s paper believe that the recently-discovered Type II supernova ASASSN-13co — read that as “assassin”, please — might just be one of the latter.

How do satellite galaxies orbit their host?

Satellite galaxies orbiting a host galaxy seem to display highly anisotropic angular distributions.

Tuning in to Radio Exoplanets

Title: Limits on low frequency radio emission from southern exoplanets Authors: Tara Murphy, et al. First Author Institution: Sydney Institute for Astronomy, The University of Sydney, Australia Status: Accepted for publication in MNRAS Astrobites is no stranger to exotic exoplanet discoveries- the Kepler mission alone has increased our knowledge of these worlds by leaps and bounds, and many exciting discoveries have been done […]

Dust gets interesting

Thought dust could only bore you? Think again: it may obscure our view of time’s very beginning!

Searching for Galaxy Clusters with the SZ Effect

The Sunyaev-Zeldovich effect is a unique way of searching for galaxy clusters that complements multi-wavelength imaging efforts.

The first discovery of a Thorne–Żytkow Object?

For the first time, astronomers have announced a Thorne–Żytkow Object candidate- a bizarre system in which a neutron star is surrounded by an envelope of stellar material.

Gamma rays: a window to the first stars?

The longest-lasting, most energetic explosions in the universe might occur in rare stars very similar to the very first stars to form in the universe.

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