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Courtney Dressing

Courtney Dressing has written 54 posts for astrobites
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Image from http://www.nasa.gov/centers/ames/researchpark/lecture/revolutionizing_space_humanity.html

Spectra of Earths Around Other Stars

How would the spectrum of the Earth change if our planet orbited a hotter or cooler star? Would alien astronomers still be able to detect signs of life?

An Artist's Conception of the Kepler-11 System (Copyright: NASA)

Separating Signatures of Multiple Planets

Can we infer the presence of multiple planets by monitoring how a star’s brightness changes outside of planetary transit?

T Tauri (Image Copyright: T. Rector (U. Alaska Anchorage), H. Schweiker, WIYN, NOAO, AURA, NSF)

Searching for Giant Planets Around Baby Stars

How long does planetary migration take? Crockett et al. look for the answer by searching for hot Jupiters around extremely young stars.

Artist's impression of Alpha Centauri Bb (Credit: L. Cal├žada, ESO)

Can Binary Star Systems Harbor Habitable Planets?

Astronomers recently announced the discovery of a short period Earth-mass planet in the Alpha Centauri system. Could Earth-mass planets exist in the habitable zones of binary stars?

Subset of Figure 2 from Crepp et al. 2012

Three New Small Stars

Low-mass stars are notoriously hard to model. What does the discovery of three new low-mass stars in binaries with Sun-like stars tell us about low-mass stars?

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