Nathan Smith

TL;DR: In this article, a multiple depth display provided for displaying images at different depths comprises a single display device (61), for displaying all of the images, and an optical system (62, 63, 64) is disposed in front of the display device.

TL;DR: In this article, a supergiant was identified as the progenitor of the most common core-collapse supernovae (SNe), those of Type II-Plateau (II-P): they generally appear to be red supergiants with a limited range of initial masses, ~8-16 M_⊙.

TL;DR: In this paper, the authors present new ground-based near-infrared (NIR) observations of SN 2006gy, as well as a single epoch of Hubble Space Telescope (HST) imaging obtained more than two years after the explosion.

TL;DR: Ground-based spectroscopy of eta Car shows periodic changes in some emission-line wavelengths that have been cited as strong evidence that this object is a 5.5 yr binary system, but high spatial resolution data obtained with the Hubble Space Telescope/Space Telescope Imaging Spectrograph do not confirm the predicted velocity behavior; therefore, published orbit models are almost certainly invalid.

TL;DR: In this paper, the authors reported the detection of several new circumstellar disks seen in silhouette against background nebular light in the outskirts of the Orion Nebula and the neighboring H II region M43.