Pa 13 contains a detached double-degenerate binary of two hot pre-white dwarfs with dynamical masses 0.41 and 0.39 solar masses, offering the strongest evidence yet for planetary nebulae around post-RGB stars via either double-core evolution or CE-induced rejuvenation.
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A variational autoencoder learns to generate and reconstruct quasar spectra from SDSS data, reproducing median and variance properties while enabling photometry synthesis and absorption-line interpolation without ad-hoc tuning.
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Two hot pre-white dwarfs inside the red-giant-branch planetary nebula Pa 13 -- Double core evolution or common envelope-induced rejuvenation?
Pa 13 contains a detached double-degenerate binary of two hot pre-white dwarfs with dynamical masses 0.41 and 0.39 solar masses, offering the strongest evidence yet for planetary nebulae around post-RGB stars via either double-core evolution or CE-induced rejuvenation.
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QUEST (Quasar Unsupervised Encoder and Synthesis Tool): A machine learning framework to generate quasar spectra
A variational autoencoder learns to generate and reconstruct quasar spectra from SDSS data, reproducing median and variance properties while enabling photometry synthesis and absorption-line interpolation without ad-hoc tuning.