scholarly journals High Angular Resolution Mid-Infrared Imaging of Young Stars in Orion BN/KL

2004 ◽  
Author(s):  
l greenhill
Keyword(s):  
Infrared Imaging ◽  
Angular Resolution ◽  
Young Stars ◽  
High Angular Resolution ◽  
Mid Infrared

scholarly journals High Angular Resolution Mid-Infrared Imaging of Young Stars in Orion BN/KL

2004 ◽  
Vol 605 (1) ◽  
pp. L57-L60 ◽  
Author(s):  
L. J. Greenhill ◽  
D. Y. Gezari ◽  
W. C. Danchi ◽  
J. Najita ◽  
J. D. Monnier ◽  
...  
Keyword(s):  
Infrared Imaging ◽  
Angular Resolution ◽  
Young Stars ◽  
High Angular Resolution ◽  
Mid Infrared

scholarly journals The complex evolutionary paths of local infrared bright galaxies: a high-angular resolution mid-infrared view

2016 ◽  
Vol 463 (3) ◽  
pp. 2405-2424 ◽  
Author(s):  
A. Alonso-Herrero ◽  
R. Poulton ◽  
P. F. Roche ◽  
A. Hernán-Caballero ◽  
I. Aretxaga ◽  
...  
Keyword(s):  
Angular Resolution ◽  
High Angular Resolution ◽  
Mid Infrared ◽  
Evolutionary Paths

scholarly journals Infrared Long Baseline Interferometry

1989 ◽  
Vol 8 ◽  
pp. 563-564
Author(s):  
W.C. Danchi ◽  
M. Bester ◽  
P.R. McCullough ◽  
C.H. Townes
Keyword(s):  
Delay Line ◽  
Angular Resolution ◽  
Spectral Characteristics ◽  
High Angular Resolution ◽  
Mid Infrared ◽  
Long Baseline ◽  
Interference Fringes ◽  
Infrared Spectral ◽  
New Instruments ◽  
Hgcdte Photodiodes

During the last few years, two new instruments using long baseline interferometry have been constructed for high angular resolution astronomy in the mid-infrared spectral region (8-12 μxm). One called SOIRDETE-Synthese d’Overture en InfraRouge a DEux TElescopes-was built by J. Gay and his collaborators at CERGA. SOIRDETE has a fixed E-W 15 m baseline and two 1 m diameter telescopes of conventional design. This instrument obtains interference fringes by adjusting an optical-precision delay line in discrete steps to compensate for the geometrical delay of the projected baseline. The interference fringe from the source is detected using HgCdTe photodiodes. Because the instrumental delay has discrete steps a time-domain interferogram is created. This interferogram, upon Fourier transformation to the frequency domain, yields information about the spectral characteristics of the source. First fringes have recently been obtained with this instrument (Gay, 1988).

scholarly journals The sharpest view of the local AGN population at mid-infrared wavelengths

2013 ◽  
Vol 9 (S304) ◽  
pp. 225-226
Author(s):  
Daniel Asmus ◽  
Sebastian F. Hönig ◽  
Poshak Gandhi ◽  
Alain Smette ◽  
Wolfgang J. Duschl
Keyword(s):  
Active Galactic Nuclei ◽  
Angular Resolution ◽  
Spatial Scales ◽  
Galactic Nuclei ◽  
High Angular Resolution ◽  
Mid Infrared ◽  
X Ray ◽  
Infrared Wavelengths ◽  
Photometric Measurements

AbstractWe present the largest mid-infrared (MIR) atlas of active galactic nuclei at sub-arcsec spatial scales containing 253 objects with a median redshift of 0.016. It comprises all available ground-based high-angular resolution MIR observations performed to date with 8-meter class telescopes and includes 895 photometric measurements. All types of AGN are present in the atlas, which also includes 80 per cent of the 9-month BAT AGN sample. Therefore, this atlas and its subsamples are very well-suited for AGN unification studies. A first application of the atlas is the extension of the MIR–X-ray luminosity correlation for AGN.

High angular resolution broad-band imaging in the mid-infrared - The infrared bright galaxy NGC 34

1991 ◽  
Vol 374 ◽  
pp. L29 ◽  
Author(s):  
Eric Keto ◽  
Garrett Jernigan ◽  
John Arens ◽  
Margaret Meixner ◽  
Roger Ball
Keyword(s):  
Angular Resolution ◽  
Broad Band ◽  
High Angular Resolution ◽  
Bright Galaxy ◽  
Mid Infrared

scholarly journals Mid-infrared properties of nearby low-luminosity AGN at high angular resolution

2011 ◽  
Vol 536 ◽  
pp. A36 ◽  
Author(s):  
D. Asmus ◽  
P. Gandhi ◽  
A. Smette ◽  
S. F. Hönig ◽  
W. J. Duschl
Keyword(s):  
Angular Resolution ◽  
High Angular Resolution ◽  
Mid Infrared

The mid-infrared radio correlation at high angular resolution - NGC 253

1993 ◽  
Vol 413 ◽  
pp. L23 ◽  
Author(s):  
Eric Keto ◽  
Roger Ball ◽  
John Arens ◽  
Garrett Jernigan ◽  
Margaret Meixner ◽  
...  
Keyword(s):  
Angular Resolution ◽  
High Angular Resolution ◽  
Mid Infrared

scholarly journals Influence of the input-stage architecture on the in-laboratory test of a mid-infrared interferometer: application to the ALOHA up-conversion interferometer in the L band

2020 ◽  
Vol 501 (1) ◽  
pp. 531-540
Author(s):  
Julie Magri ◽  
Lucien Lehmann ◽  
Ludovic Grossard ◽  
Laurent Delage ◽  
François Reynaud ◽  
...  
Keyword(s):  
Laboratory Test ◽  
Near Infrared ◽  
Angular Resolution ◽  
High Angular Resolution ◽  
High Flux ◽  
Hybrid Analysis ◽  
Mid Infrared ◽  
Input Stage ◽  
L Band ◽  
Set Up

ABSTRACT In the framework of the Astronomical Light Optical Hybrid Analysis (ALOHA) laboratory mid-infrared (MIR) up-conversion fibred interferometer in the L band, we report on the influence of the input-stage architecture. Using an amplitude division set-up in the visible or near-infrared is a straightforward choice in most cases. In the MIR context, the results are slightly different and we show that a wavefront division set-up is needed. These in-laboratory principle experiments allow us to measure a reliable 88 per cent instrumental contrast with high flux and to obtain fringes from faint sources at 3.5 μm with a spectral bandwith of 37 nm converted to 817 nm. An equivalent limiting L-band magnitude around 3.9, equivalent to 3.0 fW nm−1, could be demonstrated on 1 m class telescopes. This opens the possibility of planning future on-sky tests at the Center for High Angular Resolution Astronomy (CHARA) array and of predicting the performance attained.

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