Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Kavli Affiliate: Eric Miller | First 5 Authors: Ege Ozsar, Misha Kilmer, Eric Miller, Eric de Sturler, Arvind Saibaba | Summary: In this paper, we consider the restoration and reconstruction of piecewise constant objects in two and three dimensions using PaLEnTIR, a significantly enhanced Parametric level set (PaLS) model relative to the current state-of-the-art. The […]


Continue.. Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Kavli Affiliate: Eric Miller | First 5 Authors: Ege Ozsar, Misha Kilmer, Eric Miller, Eric de Sturler, Arvind Saibaba | Summary: We introduce PaLEnTIR, a significantly enhanced parametric level-set (PaLS) method addressing the restoration and reconstruction of piecewise constant objects. Our key contribution involves a unique PaLS formulation utilizing a single level-set function to restore […]


Continue.. Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Elias K. Oakes, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Quang H. Tran | Summary: We determine three independent Population II distance moduli to the Fornax dwarf spheroidal (dSph) galaxy, using wide-field, ground-based $VI$ imaging acquired with the Magellan-Baade telescope at Las Campanas Observatory. […]


Continue.. Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal

Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Elias K. Oakes, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Quang H. Tran | Summary: We determine three independent Population II distance moduli to the Fornax dwarf spheroidal (dSph) galaxy, using wide-field, ground-based $VI$ imaging acquired with the Magellan-Baade telescope at Las Campanas Observatory. […]


Continue.. Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal

The Age of Discovery with the James Webb: Excavating the Spectral Signatures of the First Massive Black Holes

Kavli Affiliate: Kohei Inayoshi | First 5 Authors: Kohei Inayoshi, Masafusa Onoue, Yuma Sugahara, Akio K. Inoue, Luis C. Ho | Summary: The James Webb Space Telescope (JWST) will open a new window of the most distant universe and unveil the early growth of supermassive black holes (BHs) in the first galaxies. In preparation for […]


Continue.. The Age of Discovery with the James Webb: Excavating the Spectral Signatures of the First Massive Black Holes

Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Kavli Affiliate: Yevgeny Stadnik | First 5 Authors: Vladimir Schkolnik, Dmitry Budker, Oliver Fartmann, Victor Flambaum, Leo Hollberg | Summary: We present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-orbiting space station. This pathfinder science mission will compare the space-based OAC with one or more ultra-stable terrestrial OACs to search […]


Continue.. Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Kavli Affiliate: Yevgeny Stadnik | First 5 Authors: Vladimir Schkolnik, Dmitry Budker, Oliver Fartmann, Victor Flambaum, Leo Hollberg | Summary: We present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-orbiting space station. This pathfinder science mission will compare the space-based OAC with one or more ultra-stable terrestrial OACs to search […]


Continue.. Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Kavli Affiliate: Yevgeny Stadnik | First 5 Authors: Vladimir Schkolnik, Dmitry Budker, Oliver Fartmann, Victor Flambaum, Leo Hollberg | Summary: We present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-orbiting space station. This pathfinder science mission will compare the space-based OAC with one or more ultra-stable terrestrial OACs to search […]


Continue.. Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space

Localizing narrow Fe K$α$ emission within bright AGN

Kavli Affiliate: Claudio Ricci | First 5 Authors: Carolina Andonie, Franz E. Bauer, Rosamaria Carraro, Patricia Arevalo, David M. Alexander | Summary: The 6.4 keV Fe Ka emission line is a ubiquitous feature in X-ray spectra of AGN, and its properties track the interaction between the variable primary X-ray continuum and the surrounding structure from […]


Continue.. Localizing narrow Fe K$α$ emission within bright AGN

Radio signal of PSR B0950+08 is detected over the whole phase

Kavli Affiliate: Kejia Lee | First 5 Authors: Zhengli Wang, Jiguang Lu, Jinchen Jiang, Jie Lin, Kejia Lee | Summary: Pulsars, known as the "lighthouses" in the universe, are thought to emit periodic pulses with duty-cycle ~10%. In this report, the 160,min-data of a nearby pulsar, PSR B0950+08, observed with the Five-hundred-meter Aperture Spherical radio […]


Continue.. Radio signal of PSR B0950+08 is detected over the whole phase