STIS coronagraphic imaging of Fomalhaut: Main belt structure and the orbit of Fomalhaut b
We present new optical coronagraphic data of Fomalhaut obtained with HST/STIS in 2010
and 2012. Fomalhaut b is recovered at both epochs to high significance. The observations …
and 2012. Fomalhaut b is recovered at both epochs to high significance. The observations …
Reconnaissance of the HR 8799 exosolar system. I. Near-infrared spectroscopy
BR Oppenheimer, C Baranec, C Beichman… - The Astrophysical …, 2013 - iopscience.iop.org
We obtained spectra in the wavelength range λ= 995–1769 nm of all four known planets
orbiting the star HR 8799. Using the suite of instrumentation known as Project 1640 on the …
orbiting the star HR 8799. Using the suite of instrumentation known as Project 1640 on the …
A new high contrast imaging program at Palomar observatory
S Hinkley, BR Oppenheimer… - Publications of the …, 2011 - iopscience.iop.org
We describe a new instrument that forms the core of a long-term high contrast imaging
program at the 200 inch (5 m) Hale Telescope at Palomar Observatory. The primary …
program at the 200 inch (5 m) Hale Telescope at Palomar Observatory. The primary …
Reconnaissance of the HR 8799 exosolar system. II. Astrometry and orbital motion
We present an analysis of the orbital motion of the four substellar objects orbiting HR 8799.
Our study relies on the published astrometric history of this system augmented with an …
Our study relies on the published astrometric history of this system augmented with an …
Speckle noise and dynamic range in coronagraphic images
R Soummer, A Ferrari, C Aime… - The Astrophysical …, 2007 - iopscience.iop.org
This paper is concerned with the theoretical properties of high-contrast coronagraphic
images in the context of exoplanet searches. We derive and analyze the statistical properties …
images in the context of exoplanet searches. We derive and analyze the statistical properties …
Lyot-based low order wavefront sensor for phase-mask coronagraphs: principle, simulations and laboratory experiments
G Singh, F Martinache, P Baudoz… - Publications of the …, 2014 - iopscience.iop.org
High performance coronagraphic imaging of faint structures around bright stars at small
angular separations requires fine control of tip, tilt, and other low order aberrations. When …
angular separations requires fine control of tip, tilt, and other low order aberrations. When …
Discovery of seven companions to intermediate-mass stars with extreme mass ratios in the Scorpius–Centaurus association
We report the detection of seven low-mass companions to intermediate-mass stars (SpT
B/A/F; $ M\;\sim $1.5–4.5 M⊙) in the Scorpius–Centaurus (Sco–Cen) Association using …
B/A/F; $ M\;\sim $1.5–4.5 M⊙) in the Scorpius–Centaurus (Sco–Cen) Association using …
Coronagraphic low-order wave-front sensor: principle and application to a phase-induced amplitude coronagraph
High-contrast coronagraphic imaging of the immediate surrounding of stars requires
exquisite control of low-order wave-front aberrations, such as tip–tilt (pointing) and focus. We …
exquisite control of low-order wave-front aberrations, such as tip–tilt (pointing) and focus. We …
The κ Andromedae system: new constraints on the companion mass, system age, and further multiplicity
ABSTRACT κ Andromedae is a B9IVn star at 52 pc for which a faint substellar companion
separated by 55±2 AU was recently announced. In this work, we present the first spectrum of …
separated by 55±2 AU was recently announced. In this work, we present the first spectrum of …
Millisecond exoplanet imaging: I. method and simulation results
One of the top priorities in observational astronomy is the direct imaging and
characterization of extrasolar planets (exoplanets) and planetary systems. Direct images of …
characterization of extrasolar planets (exoplanets) and planetary systems. Direct images of …