scholarly journals Near‐Infrared Adaptive Optics Imaging of QSO Host Galaxies

2006 ◽  
Vol 166 (1) ◽  
pp. 89-127 ◽  
Author(s):  
O. Guyon ◽  
D. B. Sanders ◽  
Alan Stockton
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Host Galaxies ◽  
Adaptive Optics Imaging

scholarly journals Near‐Infrared Adaptive Optics Imaging of High‐Redshift Quasars

2008 ◽  
Vol 673 (2) ◽  
pp. 694-702 ◽  
Author(s):  
Renato Falomo ◽  
Aldo Treves ◽  
Jari K. Kotilainen ◽  
Riccardo Scarpa ◽  
Michela Uslenghi
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
High Redshift ◽  
Adaptive Optics Imaging

scholarly journals CATS: OPTICAL TO NEAR-INFRARED COLORS OF THE BULGE AND DISK OF TWOz= 0.7 GALAXIES USINGHUBBLE SPACE TELESCOPEAND KECK LASER ADAPTIVE OPTICS IMAGING

2008 ◽  
Vol 136 (4) ◽  
pp. 1523-1532 ◽  
Author(s):  
E. Steinbring ◽  
J. Melbourne ◽  
A. J. Metevier ◽  
D. C. Koo ◽  
M. R. Chun ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Adaptive Optics Imaging

scholarly journals The SUNBIRD survey: characterizing the super star cluster populations of intensely star-forming galaxies

2015 ◽  
Vol 12 (S316) ◽  
pp. 70-76
Author(s):  
Zara Randriamanakoto ◽  
Petri Väisänen
Keyword(s):  
Star Formation ◽  
Adaptive Optics ◽  
Near Infrared ◽  
Cluster Formation ◽  
Formation Rate ◽  
Star Clusters ◽  
Power Laws ◽  
Star Cluster ◽  
Host Galaxies ◽  
Star Forming

AbstractSuper star clusters (SSCs) represent the youngest and most massive form of known gravitationally bound star clusters in the Universe. They are born abundantly in environments that trigger strong and violent star formation. We investigate the properties of these massive SSCs in a sample of 42 nearby starbursts and luminous infrared galaxies. The targets form the sample of the SUperNovae and starBursts in the InfraReD (SUNBIRD) survey that were imaged using near-infrared (NIR) K-band adaptive optics mounted on the Gemini/NIRI and the VLT/NaCo instruments. Results from i) the fitted power-laws to the SSC K-band luminosity functions, ii) the NIR brightest star cluster magnitude − star formation rate (SFR) relation and iii) the star cluster age and mass distributions have shown the importance of studying SSC host galaxies with high SFR levels to determine the role of the galactic environments in the star cluster formation, evolution and disruption mechanisms.

scholarly journals Resolving the Multiplicity of Exoplanet Host Stars in Gemini/NIRI Data

2022 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Kim Miskovetz ◽  
Trent J. Dupuy ◽  
Jessica Schonhut-Stasik ◽  
Keivan G. Stassun
Keyword(s):  
Adaptive Optics ◽  
Proper Motion ◽  
Near Infrared ◽  
Planetary Systems ◽  
Unit Weight ◽  
Imaging Data ◽  
Infrared Imager ◽  
Adaptive Optics Imaging ◽  
Host Stars

Abstract The majority of stars have one or more stellar companions. As exoplanets continue to be discovered, it is crucial to examine planetary systems to identify their stellar companions. By observing a change in proper motion, companions can be detected by the acceleration they induce on their host stars. We selected 701 stars from the Hipparcos–Gaia Catalog of Accelerations (HGCA) that have existing adaptive optics imaging data gathered with Gemini/Near InfraRed Imager (NIRI). Of these, we examined 21 stars known to host planet candidates and reduced their archival NIRI data with Gemini’s DRAGONS software. We assessed these systems for companions using the NIRI images as well as Renormalized Unit Weight Error values in Gaia and accelerations in the HGCA. We detected three known visible companions and found two more systems with no visible companions but astrometric measurements indicating likely unresolved companions.

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