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The Solar Eclipse Coronal Imaging System (SECIS) is a simple and extremely fast, high-resolution imaging instrument designed for studies of the solar corona. Light from the corona (during, for example, a total solar eclipse) is reflected…

Ultra-hot Jupiters are a class of gas-giant exoplanets that show a peculiar combination of thermochemical properties in the form of molecular dissociation, atomic ionization, and inverted thermal structures. Atmospheric characterization of…

The Photo-z InfraRed Telescope (PIRT) is an instrument on the Gamow Explorer, currently proposed for a NASA Astrophysics Medium Explorer. PIRT works in tandem with a companion wide-field instrument, the Lobster Eye X-ray Telescope (LEXT),…

Coronagraph designs which use photonic integrated circuits have the highest theoretical throughput for off-axis signals, and therefore the highest potential exoplanet yield for future high-contrast direct imaging campaigns. Using the…

Instrumentation and Methods for Astrophysics · Physics 2026-04-13 Jonathan Lin

Statistical characterization of secondary subsystems in binaries helps to distinguish between various scenarios of multiple-star formation. The DSSI speckle instrument was used at the Gemini-N telescope for several hours in 2015 July to…

Solar and Stellar Astrophysics · Physics 2016-10-26 Andrei Tokovinin , Elliott P. Horch

We propose a transmission-filter coronagraph for direct imaging of Jupiter-like exoplanets with ground-based telescopes. The coronagraph is based on a transmission filter that consists of finite number of transmission steps. A discrete…

Instrumentation and Methods for Astrophysics · Physics 2015-10-14 Deqing Ren , Jiangpei Dou , Yongtian Zhu

Directly imaging extrasolar planets using a monolithic optical telescope avoids many pitfalls of space interferometry and opens up the prospect of visible light studies of extrasolar planetary systems. Future astronomical missions may…

Astrophysics · Physics 2007-05-23 M. J. Kuchner , D. N. Spergel

Orbital monitoring of exoplanetary and stellar systems is fundamental for analysing their architecture, dynamical stability and evolution, and mechanisms of formation. Current high-contrast extreme-adaptive optics imagers like SPHERE, GPI,…

The Nancy Grace Roman Space Telescope Coronagraph Instrument will be the first large scale coronagraphmission with active wavefront control to be operated in space and will demonstrate technologies essential tofuture missions to image…

Instrumentation and Methods for Astrophysics · Physics 2021-08-26 Kian Milani , Ewan S. Douglas , Jaren Ashcraft

The Mid-Infrared instrument (MIRI) on board the James Webb Space Telescope will perform the first ever characterization of young giant exoplanets observed by direct imaging in the 5-28 microns spectral range. This wavelength range is key…

Earth and Planetary Astrophysics · Physics 2018-11-28 C. Danielski , J. -L. Baudino , P. -O. Lagage , A. Boccaletti , R. Gastaud , A. Coulais , B. Bézard

For one of the first set of Roman Coronagraph project images, we propose to target AB Aurigae. AB Aurigae is a complex and visually stunning system, surrounded by a gas rich protoplanetary disk showing numerous spiral arms, an enigmatic…

Instrumentation and Methods for Astrophysics · Physics 2025-09-04 Thayne Currie , Kellen Lawson , Erica Dykes , Mona El Morsy

Correlation plenoptic imaging (CPI) is a light-field imaging technique employing intensity correlation measurements to simultaneously detect the spatial distribution and the propagation direction of light. Compared to standard methods, in…

We present a new automatic tool for time-domain astronomy - the Cambridge Photometric Calibration Server 2.0 - developed under OPTICON H2020 programme. It has been designed to respond to the need of automated rapid photometric data…

Instrumentation and Methods for Astrophysics · Physics 2020-06-11 Pawel Zielinski , Lukasz Wyrzykowski , Przemyslaw Mikolajczyk , Krzysztof Rybicki , Zbigniew Kolaczkowski

Abridged: Direct imaging has made significant progress over the past decade leading to the detection of several giant planets. Observing strategies and data rates vary from instrument to instrument and wavelength, and can result in tens of…

The Rapid Imaging Planetary Spectrograph (RIPS) was designed as a long-slit high-resolution spectrograph for the specific application of studying atmospheres of spatially extended solar system bodies. With heritage in terrestrial airglow…

Instrumentation and Methods for Astrophysics · Physics 2023-08-01 Patrick Lierle , Carl Schmidt , Jeffrey Baumgardner , Luke Moore , Emma Lovett

The Gemini/HST Galaxy Cluster Project (GCP) covers 14 z=0.2-1.0 clusters with X-ray luminosity of L_500 >= 10^44 ergs/s in the 0.1-2.4 keV band. In this paper we provide homogeneously calibrated X-ray luminosities, masses and radii, and we…

Astrophysics of Galaxies · Physics 2018-04-11 Inger Jorgensen , Kristin Chiboucas , Pascale Hibon , Louise D. Nielsen , Marianne Takamiya

Observations of extrasolar planets using Integral Field Spectroscopy (IFS), if coupled with an extreme Adaptive Optics system and analyzed with a Simultaneous Differential Imaging technique (SDI), are a powerful tool to detect and…

Astrophysics · Physics 2009-11-11 A. Berton , R. G. Gratton , M. Feldt , T. Henning , S. Desidera , M. Turatto , H. M. Schmid , R. Waters

A primary goal of direct imaging techniques is to spectrally characterize the atmospheres of planets around other stars at extremely high contrast levels. To achieve this goal, coronagraphic instruments have favored integral field…

Despite promising astrometric signals, to date there has been no success in direct imaging of a hypothesized third member of the Sirius system. Using the Clio instrument and MagAO adaptive optics system on the Magellan Clay 6.5 m telescope,…

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