scholarly journals Science with NIFS, Australia's First Gemini Instrument

2001 ◽  
Vol 18 (1) ◽  
pp. 41-57 ◽  
Author(s):  
Peter J. McGregor ◽  
Michael Dopita ◽  
Peter Wood ◽  
Michael G. Burton
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Seyfert Galaxies ◽  
Resolving Power ◽  
Galactic Centre ◽  
Massive Black Holes ◽  
Wide Range ◽  
Integral Field Spectrograph

AbstractThe Near-infrared Integral Field Spectrograph (NIFS) will beAustralia’s first Gemini instrument. NIFS is a near-infrared, imaging spectrograph that will be used with the ALTAIR facility adaptive optics system on Gemini North to perform near-diffraction-limited imaging spectroscopy over a 3·0″ × 3·0″ field of view with 0·1″ wide slitlets and a spectral resolving power of ˜5300. NIFS will operate in the wavelength range from 0·94–2·50 µm where ALTAIR delivers its greatest gains. Its primary purpose is to study moderate-surface-brightness structures around discrete objects that are revealed at high spatial resolution by ALTAIR. NIFS will address a wide range of science from studies of Galactic star formation and the Galactic centre to the nature of disk galaxies at z ˜ 1. Studies of the demographics of massive black holes in galactic nuclei and studies of the excitation conditions in the inner narrow-line regions of Seyfert galaxies have been identified as two core NIFS programs. These and other science drivers for NIFS are discussed.

Near-Infrared Imaging Spectroscopy of the Seyfert Nucleus of the Circinus Galaxy

1997 ◽  
Vol 159 ◽  
pp. 351-352
Author(s):  
R. Maiolino ◽  
N. Thatte ◽  
H. Kroker ◽  
J.F. Gallimore ◽  
R. Genzel
Keyword(s):  
Adaptive Optics ◽  
Spectral Resolution ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Near Infrared Imaging ◽  
Imaging Spectrometer ◽  
First Order ◽  
Seyfert Nucleus ◽  
Adaptive Optics System

The Circinus galaxy is a nearby (4 Mpc) spiral that hosts a Seyfert nucleus as deduced by the emission of intense coronal lines (Oliva et al. 1994) and by the prominent ionization cone observed in [O III] images (Marconi et al. 1994).We present K-band imaging spectroscopy of the nucleus of this galaxy obtained by means of 3D, the MPE imaging spectrometer (Weitzel et al. 1996), and ROGUE, a first-order adaptive-optics system (Thatte et al. 1995), mounted on the 2.2-m ESO telescope. The spectral resolution is 1000 and the average optical seeing was about 0”.6 (= 12 pc at the source).

scholarly journals Obscuring and Feeding Supermassive Black Holes with Evolving Nuclear Star Clusters

2009 ◽  
Vol 5 (S267) ◽  
pp. 307-312
Author(s):  
M. Schartmann ◽  
A. Burkert ◽  
M. Krause ◽  
M. Camenzind ◽  
K. Meisenheimer ◽  
...  
Keyword(s):  
High Resolution ◽  
Adaptive Optics ◽  
Large Scale ◽  
Near Infrared ◽  
Star Clusters ◽  
Seyfert Galaxies ◽  
Disk Model ◽  
Ngc 1068 ◽  
Hydrodynamical Simulations ◽  
Integral Field Spectrograph

AbstractRecently, high-resolution observations made with the help of the near-infrared adaptive optics integral field spectrograph SINFONI at the VLT proved the existence of massive and young nuclear star clusters in the centers of a sample of Seyfert galaxies. With the help of high-resolution hydrodynamical simulations with the pluto code, we follow the evolution of such clusters, especially focusing on mass and energy feedback from young stars. This leads to a filamentary inflow of gas on large scales (tens of parsecs), whereas a turbulent and very dense disk builds up on the parsec scale. Here we concentrate on the long-term evolution of the nuclear disk in NGC 1068 with the help of an effective viscous disk model, using the mass input from the large-scale simulations and accounting for star formation in the disk. This two-stage modeling enables us to connect the tens-of-parsecs scale region (observable with SINFONI) with the parsec-scale environment (MIDI observations). At the current age of the nuclear star cluster, our simulations predict disk sizes of the order 0.8 to 0.9 pc, gas masses of order 106M⊙, and mass transfer rates through the inner boundary of order 0.025 M⊙yr−1, in good agreement with values derived from observations.

Near infrared imaging spectroscopy of Venus with the Anglo-Australian Telescope

2008 ◽  
Vol 56 (10) ◽  
pp. 1385-1390 ◽  
Author(s):  
Jeremy Bailey ◽  
S. Chamberlain ◽  
D. Crisp ◽  
V.S. Meadows
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Near Infrared Imaging

scholarly journals Near-infrared imaging spectroscopy of the inner few arcseconds of NGC 4151 with OSIRIS at Keck

2013 ◽  
Vol 556 ◽  
pp. A136 ◽  
Author(s):  
C. Iserlohe ◽  
A. Krabbe ◽  
J. E. Larkin ◽  
M. Barczys ◽  
M. W. McElwain ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Near Infrared Imaging ◽  
Ngc 4151

Indium Antimonide (InSb) Focal Plane Array (FPA) Detection for Near-Infrared Imaging Microscopy

1994 ◽  
Vol 48 (5) ◽  
pp. 607-615 ◽  
Author(s):  
Patrick J. Treado ◽  
Ira W. Levin ◽  
E. Neil Lewis
Keyword(s):  
Indium Antimonide ◽  
High Speed ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Optical Microscope ◽  
Tunable Filter ◽  
Model Systems ◽  
High Spectral Resolution ◽  
Spectral Interval ◽  
Wide Range

Near-infrared spectroscopy is a sensitive, noninvasive method for chemical analyses, and its integration with imaging technologies represents a potent tool for the study of a wide range of materials. In this communication the use of an indium antimonide (InSb) multichannel imaging detector for near-infrared absorption spectroscopic microscopy is described. In particular, a 128 × 128 pixel InSb staring array camera has been combined with a refractive optical microscope and an acousto-optic tunable filter (AOTF) to display chemically discriminative, spatially resolved, vibrational spectroscopic images of biological and polymeric systems. AOTFs are computer-controlled bandpass filters that provide high speed, random wavelength access, wide spectral coverage, and high spectral resolution. Although AOTFs inherently have a wide range of spectroscopic applications, we apply this technology to NIR absorption microscopy between 1 and 2.5 μm. The spectral interval is well matched to the optical characteristics of both the NIR refractive microscope and the AOTF, thereby providing near-diffraction-limited performance with a practical spatial resolution of 1 to 2 μm. Design principles of this novel instrumentation and representative applications of the technique are presented for various model systems.

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