Optical design and performance of MIRIS near-infrared camera

2010 ◽  
Author(s):  
Chang Hee Ree ◽  
Sung-Joon Park ◽  
Bongkon Moon ◽  
Sang-Mok Cha ◽  
Youngsik Park ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Design ◽  
Infrared Camera ◽  
And Performance

Optical design and performance of the 12- to 26-μm channel (MIR-L) of the infrared camera on board ASTRO-F

2004 ◽  
Author(s):  
Naofumi Fujishiro ◽  
Hideo Matsuhara ◽  
Yuji Ikeda ◽  
Tomoyasu Yamamuro ◽  
Norihide Takeyama ◽  
...  
Keyword(s):  
Optical Design ◽  
Infrared Camera ◽  
And Performance

scholarly journals Characterization and Performance of the Cananea Near-infrared Camera (CANICA)

2018 ◽  
Vol 130 (987) ◽  
pp. 055001 ◽  
Author(s):  
R. Devaraj ◽  
Y. D. Mayya ◽  
L. Carrasco ◽  
A. Luna
Keyword(s):  
Near Infrared ◽  
Infrared Camera ◽  
And Performance

scholarly journals Search for giant planets around seven white dwarfs in the Hyades cluster with the Hubble Space Telescope

2020 ◽  
Vol 500 (3) ◽  
pp. 3920-3925
Author(s):  
Wolfgang Brandner ◽  
Hans Zinnecker ◽  
Taisiya Kopytova
Keyword(s):  
White Dwarfs ◽  
Near Infrared ◽  
Hubble Space Telescope ◽  
Infrared Camera ◽  
Detection Limits ◽  
Giant Planets ◽  
High Angular Resolution ◽  
Mass Detection ◽  
Space Telescope ◽  
Hyades Cluster

ABSTRACT Only a small number of exoplanets have been identified in stellar cluster environments. We initiated a high angular resolution direct imaging search using the Hubble Space Telescope (HST) and its Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument for self-luminous giant planets in orbit around seven white dwarfs in the 625 Myr old nearby (≈45 pc) Hyades cluster. The observations were obtained with Near-Infrared Camera 1 (NIC1) in the F110W and F160W filters, and encompass two HST roll angles to facilitate angular differential imaging. The difference images were searched for companion candidates, and radially averaged contrast curves were computed. Though we achieve the lowest mass detection limits yet for angular separations ≥0.5 arcsec, no planetary mass companion to any of the seven white dwarfs, whose initial main-sequence masses were >2.8 M⊙, was found. Comparison with evolutionary models yields detection limits of ≈5–7 Jupiter masses (MJup) according to one model, and between 9 and ≈12 MJup according to another model, at physical separations corresponding to initial semimajor axis of ≥5–8 au (i.e. before the mass-loss events associated with the red and asymptotic giant branch phase of the host star). The study provides further evidence that initially dense cluster environments, which included O- and B-type stars, might not be highly conducive to the formation of massive circumstellar discs, and their transformation into giant planets (with m ≥ 6 MJup and a ≥6 au). This is in agreement with radial velocity surveys for exoplanets around G- and K-type giants, which did not find any planets around stars more massive than ≈3 M⊙.

scholarly journals PANIC: a near-infrared camera for the Magellan telescopes

2004 ◽  
Author(s):  
Paul Martini ◽  
S. E. Persson ◽  
David C. Murphy ◽  
Christoph Birk ◽  
Stephen A. Shectman ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Camera

Real time injecting device with automated robust vein detection using near infrared camera and live video

2017 ◽  
Author(s):  
Tamim Ahmed ◽  
Khandker Sadia Rahman ◽  
Sk Subrina Shawlin ◽  
Mohammad Hasan ◽  
Arnab Bhattacharjee ◽  
...  
Keyword(s):  
Real Time ◽  
Near Infrared ◽  
Infrared Camera ◽  
Live Video

scholarly journals Final design and on-sky testing of the iLocater SX acquisition camera: broad-band single-mode fibre coupling

2020 ◽  
Vol 501 (2) ◽  
pp. 2250-2267
Author(s):  
J Crass ◽  
A Bechter ◽  
B Sands ◽  
D King ◽  
R Ketterer ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Broad Band ◽  
Single Mode ◽  
Injection System ◽  
Single Mode Fibre ◽  
Astronomical Instruments ◽  
Final Design ◽  
Camera Design ◽  
And Performance

ABSTRACT Enabling efficient injection of light into single-mode fibres (SMFs) is a key requirement in realizing diffraction-limited astronomical spectroscopy on ground-based telescopes. SMF-fed spectrographs, facilitated by the use of adaptive optics (AO), offer distinct advantages over comparable seeing-limited designs, including higher spectral resolution within a compact and stable instrument volume, and a telescope independent spectrograph design. iLocater is an extremely precise radial velocity (EPRV) spectrograph being built for the Large Binocular Telescope (LBT). We have designed and built the front-end fibre injection system, or acquisition camera, for the SX (left) primary mirror of the LBT. The instrument was installed in 2019 and underwent on-sky commissioning and performance assessment. In this paper, we present the instrument requirements, acquisition camera design, as well as results from first-light measurements. Broad-band SMF coupling in excess of 35 per cent (absolute) in the near-infrared (0.97–1.31 ${\mu {\rm m}}$) was achieved across a range of target magnitudes, spectral types, and observing conditions. Successful demonstration of on-sky performance represents both a major milestone in the development of iLocater and in making efficient ground-based SMF-fed astronomical instruments a reality.

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