Telescope design for direct imaging of extrasolar planets

1998 ◽  
Author(s):  
Paul N. Robb ◽  
Lothar W. Bandermann ◽  
Bernhard M. Haisch
Keyword(s):  
Extrasolar Planets ◽  
Direct Imaging

scholarly journals Detecting and Characterizing Exoplanets with Direct Imaging: Past, Present, and Future

2013 ◽  
Vol 8 (S299) ◽  
pp. 1-11 ◽  
Author(s):  
Beth Biller
Keyword(s):  
Extrasolar Planets ◽  
Direct Detection ◽  
High Mass ◽  
High Contrast ◽  
Future Prospects ◽  
Contrast Imaging ◽  
Direct Imaging ◽  
Planet Detection ◽  
High Contrast Imaging ◽  
Imaging And Spectroscopy

AbstractThe last decade has yielded the first images of exoplanets, considerably advancing our understanding of the properties of young giant planets. In this talk I will discuss current results from ongoing direct imaging efforts as well as future prospects for detection and characterization of exoplanets via high contrast imaging. Direct detection, and direct spectroscopy in particular, have great potential for advancing our understanding of extrasolar planets. In combination with other methods of planet detection, direct imaging and spectroscopy will allow us to eventually: 1) study the physical properties of exoplanets (colors, temperatures, etc.) in depth and 2) fully map out the architecture of typical planetary systems. Direct imaging has offered us the first glimpse into the atmospheric properties of young high-mass (3-10 MJup) exoplanets. Deep direct imaging surveys for exoplanets have also yielded the strongest constraints to date on the statistical properties of wide giant exoplanets. A number of extremely high contrast exoplanet imaging instruments have recently come online or will come online within the next year (including Project 1640, SCExAO, SPHERE, GPI, among others). I will discuss future prospects with these instruments.

scholarly journals Search for giant extrasolar planets around white dwarfs: direct imaging with NICMOS/HST and NACO/VLT

2005 ◽  
Vol 1 (C200) ◽  
pp. 19-24 ◽  
Author(s):  
Hans Zinnecker ◽  
Serge Correia ◽  
Wolfgang Brandner ◽  
Susanne Friedrich ◽  
Mark McCaughrean
Keyword(s):  
White Dwarfs ◽  
Extrasolar Planets ◽  
Direct Imaging

scholarly journals Performance tests on the SPHERE-IFS

2013 ◽  
Vol 8 (S299) ◽  
pp. 54-55
Author(s):  
Dino Mesa ◽  
Raffaele Gratton ◽  
Riccardo U. Claudi ◽  
Silvano Desidera ◽  
Enrico Giro ◽  
...  
Keyword(s):  
Spectral Type ◽  
Extrasolar Planets ◽  
Imaging Method ◽  
Performance Tests ◽  
High Contrast ◽  
Direct Imaging ◽  
Critical Issues ◽  
Integral Field Spectrograph ◽  
Integral Field

AbstractUntil now, just a few extrasolar planets (30 out of 860) have been found through the direct imaging method. This number should greatly improve when the next generation of High Contrast Instruments like Gemini Planet Imager (GPI) at Gemini South Telescope or SPHERE at VLT will became operative at the end of this year. In particular, the Integral Field Spectrograph (IFS), one of the SPHERE subsystems, should allow a first characterization of the spectral type of the found extrasolar planets. Here we present the results of the last performance tests that we have done on the IFS instrument at the Institut de Planetologie et d'Astrophysique de Grenoble (IPAG) in condition as similar as possible to the ones that we will find at the telescope. We have found that we should be able to reach contrast down to 5 × 10−7 and make astrometry at sub-mas level with the instrument in the actual conditions. A number of critical issues have been identified. The resolution of these problems could allow to further improve the performance of the instrument.

Direct imaging of extrasolar planets

Physics Today ◽  
2003 ◽  
Vol 56 (12) ◽  
pp. 9-9
Author(s):  
Phil F. Schewe
Keyword(s):  
Extrasolar Planets ◽  
Direct Imaging

scholarly journals Searching for Faint Exozodiacal Disks: Keck Results and LBTI Status

2013 ◽  
Vol 8 (S299) ◽  
pp. 332-333
Author(s):  
D. Defrère ◽  
P. Hinz ◽  
B. Mennesson ◽  
R. Millan-Gabet ◽  
A. Skemer ◽  
...  
Keyword(s):  
Main Sequence ◽  
Extrasolar Planets ◽  
Habitable Zone ◽  
Main Sequence Stars ◽  
Direct Imaging ◽  
Mid Infrared ◽  
Preliminary Results

AbstractThe possible presence of dust in the habitable zone around nearby main-sequence stars is considered as a major hurdle toward the direct imaging of Earth-like extrasolar planets with future dedicated space-based telescopes (e.g., Roberge et al. 2012). In this context, NASA has funded two ground-based mid-infrared nulling interferometers to combine the large apertures available at the Keck Observatory and the Large Binocular Telescope (LBT). In this poster, we present the preliminary results of the extended survey carried out with the Keck Interferometer Nuller (KIN) between 2008 and 2011 and describe the forthcoming LBTI survey.

scholarly journals Direct imaging of massive extrasolar planets

2010 ◽  
Vol 6 (S276) ◽  
pp. 279-286
Author(s):  
Paul Kalas
Keyword(s):  
Extrasolar Planets ◽  
Direct Detection ◽  
Imaging Techniques ◽  
Planetary Systems ◽  
Extrasolar Planet ◽  
Direct Imaging ◽  
Recent Advances

AbstractThe direct detection of an extrasolar planet can provide accurate measurements of its orbit, mass and composition, greatly improving our understanding of how planets form and evolve. Recent advances in ground-based and space-based imaging techniques have now produced the first direct images of extrasolar planets. Typically these are many-Jupiter-mass planets on wide orbits. Direct imaging therefore probes the outer architecture of planetary systems and it is highly complementary to other techniques sensitive to inner architectures. This brief review summarizes the properties of the currently imaged exoplanets, provides an update on the orbit of Fomalhaut b, and highlights the emerging phenomenon of circumplanetary disks.

scholarly journals The Isochronal Age Scale of Young Moving Groups in the Solar Neighbourhood

2015 ◽  
Vol 10 (S314) ◽  
pp. 41-48 ◽  
Author(s):  
Cameron P. M. Bell ◽  
Eric E. Mamajek ◽  
Tim Naylor
Keyword(s):  
Crucial Role ◽  
Main Sequence ◽  
Extrasolar Planets ◽  
Direct Imaging ◽  
Intermediate Mass ◽  
Intermediate Mass Stars ◽  
Substellar Objects ◽  
Self Consistent ◽  
Moving Groups ◽  
Semi Empirical

AbstractWe present a self-consistent, absolute isochronal age scale for young (≲ 200 Myr), nearby (≲ 100 pc) moving groups, which is consistent with recent lithium depletion boundary ages for both the β Pic and Tucana-Horologium moving groups. This age scale was derived using a set of semi-empirical pre-main-sequence model isochrones that incorporate an empirical colour-Teffrelation and bolometric corrections based on the observed colours of Pleiades members, with theoretical corrections for the dependence on logg. Absolute ages for young, nearby groups are vital as these regions play a crucial role in our understanding of the early evolution of low- and intermediate-mass stars, as well as providing ideal targets for direct imaging and other measurements of dusty debris discs, substellar objects and, of course, extrasolar planets.

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