Results 101 to 110 of about 1,796 (169)
Speckle statistics in adaptive optics images at visible wavelengths
Residual speckles in adaptive optics (AO) images represent a well-known limitation on the achievement of the contrast needed for faint source detection. Speckles in AO imagery can be the result of either residual atmospheric aberrations, not corrected by
Bailey, Vanessa P +13 more
core +1 more source
The HOSTS Survey—Exozodiacal Dust Measurements for 30 Stars [PDF]
The Hunt for Observable Signatures of Terrestrial Systems survey searches for dust near the habitable zones (HZs) around nearby, bright main-sequence stars. We use nulling interferometry in the N band to suppress the bright stellar light and to probe for
Beichman, C. +2 more
core +1 more source
We present mid-infrared (MIR) observations of the Seyfert 1 galaxy NGC 4151 using the Large Binocular Telescope Interferometer (LBTI). We took open-loop Fizeau images with 66–104 mas (5.8–9.1 pc) resolution in the N -band (at 8.7 and 10.5 μ m), using ...
Jacob W. Isbell +14 more
doaj +1 more source
Elastic fibers (90% elastin, 10% fibrillin-rich microfibrils) are synthesized only in early life and adolescence mainly by the vascular smooth muscle cells through the cross-linking of its soluble precursor, tropoelastin.
Wassim Fhayli +7 more
doaj +1 more source
High Contrast Imaging in the Visible: First Experimental Results at the Large Binocular Telescope
In February 2014, the SHARK-VIS (System for High contrast And coronography from R to K at VISual bands) Forerunner, a high contrast experimental imager operating at visible wavelengths, was installed at LBT (Large Binocular Telescope).
Ambrosino, A. +15 more
core +1 more source
Thermal Infrared Imaging of Protoplanetary Disks and Substellar Companions with LBTI
The ESO/Breakthrough-sponsored New Earths in the Alpha Centauri Region (NEAR) program recently completed the first ultra-deep stare on Alpha Centauri with the upgraded VISIR-NEAR instrument. In this talk, I will describe the data reduction and scientific results of the NEAR campaign, with a focus on challenges within the existing data and how ...
openaire +1 more source
Background The identification and treatment of LTBI is a key component of the WHO’s strategy to eliminate TB. Recent migrants from high TB-incidence countries are recognised to be at risk TB reactivation, and many high-income countries have focused on ...
M. Burman +10 more
doaj +1 more source
Circumstellar discs: What will be next?
This prospective chapter gives our view on the evolution of the study of circumstellar discs within the next 20 years from both observational and theoretical sides.
A Boccaletti +256 more
core +1 more source
Theoretical Spectra and Atmospheres of Extrasolar Giant Planets
We present a comprehensive theory of the spectra and atmospheres of irradiated extrasolar giant planets. We explore the dependences on stellar type, orbital distance, cloud characteristics, planet mass, and surface gravity.
Adam Burrows +20 more
core +1 more source
The HOSTS survey for exo-zodiacal dust: preliminary results and future prospects [PDF]
The presence of large amounts of dust in the habitable zones of nearby stars is a significant obstacle for future exo-Earth imaging missions. We executed the HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey to determine the typical ...
Beichman, C. +2 more
core

