Kuiper Widefield Infrared Camera Far‐Infrared Imaging of the Galactic Center: The Circumnuclear Disk Revealed

1999 ◽  
Vol 511 (2) ◽  
pp. 761-773 ◽  
Author(s):  
H. M. Latvakoski ◽  
G. J. Stacey ◽  
G. E. Gull ◽  
T. L. Hayward
Keyword(s):  
Infrared Imaging ◽  
Galactic Center ◽  
Infrared Camera ◽  
Far Infrared ◽  
Circumnuclear Disk

scholarly journals Properties of mid- to far-infrared dust emission in the nearby superwind galaxy M82

2011 ◽  
Vol 7 (S284) ◽  
pp. 210-212
Author(s):  
Ko Arimatsu ◽  
Takashi Onaka ◽  
Itsuki Sakon ◽  
Fumi Egusa ◽  
Hidehiro Kaneda
Keyword(s):  
Aromatic Hydrocarbons ◽  
Infrared Imaging ◽  
Dust Emission ◽  
Infrared Camera ◽  
Far Infrared ◽  
Emission Characteristics ◽  
Imaging Data ◽  
Mid Infrared ◽  
Polycyclic Aromatic ◽  
Intergalactic Space

AbstractUsing the reconstructed imaging data obtained with the Infrared Camera (IRC) on board AKARI, mid-infrared (MIR; 5-30 μm) emission characteristics of the superwind galaxy M82 are studied. The MIR images at four wavelengths (7, 11, 15, and 24 μm) show extended (out to distances of 4 kpc) emission mainly from polycyclic aromatic hydrocarbons (PAHs). The MIR SED of M82 halo is surprisingly constant. Using far-infrared imaging data obtained by Herschel/SPIRE, we reveal that the PAH abundance relative to the big (sub-micron sized) grains radially increases by about a factor of three. These results imply that PAHs may be formed in small and dense molecular clumps in the halo and efficiently supplied to the intergalactic space by the galactic superwind.

Evaluation of Far Infrared Camera for Surface Image Velocimeter Versatile in Day and Night Measurement

2015 ◽  
Vol 48 (8) ◽  
pp. 659-672 ◽  
Author(s):  
Yu Kwonkyu ◽  
◽  
Kim Seojun ◽  
Yoo Byeongnam ◽  
Bae Inhyuk
Keyword(s):  
Infrared Camera ◽  
Far Infrared ◽  
Surface Image

scholarly journals Flavonoids improve drought tolerance of maize seedlings by regulating the homeostasis of reactive oxygen species

2021 ◽  
Author(s):  
Baozhu Li ◽  
Ruonan Fan ◽  
Guiling Sun ◽  
Ting Sun ◽  
Yanting Fan ◽  
...  
Keyword(s):  
Free Radicals ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Infrared Imaging ◽  
Oxygen Free Radicals ◽  
Transcriptome Profiling ◽  
Far Infrared ◽  
Drought Treatment ◽  
Physiological Characterization ◽  
Oxidative Damages

Abstract Background and aims As drought threatens the yield and quality of maize (Zea mays L.), it is important to dissect the molecular basis of maize drought tolerance. Flavonoids, participate in the scavenging of oxygen free radicals and alleviate stress-induced oxidative damages. This study aims to dissect the function of flavonoids in the improvement of maize drought tolerance. Methods Using far-infrared imaging screening, we previously isolated a drought overly insensitivity (doi) mutant from an ethyl methanesulfonate (EMS)-mutagenized maize library and designated it as doi57. In this study, we performed a physiological characterization and transcriptome profiling of doi57 in comparison to corresponding wild-type B73 under drought stress. Results Under drought stress, doi57 seedlings displayed lower leaf-surface temperature (LST), faster water loss, and better performance in growth than B73. Transcriptome analysis reveals that key genes involved in flavonoid biosynthesis are enriched among differentially expressed genes in doi57. In line with these results, more flavonols and less hydrogen peroxide (H2O2) were accumulated in guard cells of doi57 than in those of B73 with the decrease of soil water content (SWC). Moreover, the capacity determined from doi57 seedling extracts to scavenge oxygen free radicals was more effective than that of B73 under the drought treatment. Additionally, doi57 seedlings had higher photosynthetic rates, stomatal conductance, transpiration rates, and water use efficiency than B73 exposed to drought stress, resulting in high biomass and greater root/shoot ratios in doi57 mutant plants. Conclusion Flavonoids may facilitate maize seedling drought tolerance by lowering drought-induced oxidative damage as well regulating stomatal movement.

Migrating from superconducting to semiconducting YBCO thin film bolometers as future far-infrared imaging pixels

2010 ◽  
Author(s):  
Vishal S. Jagtap ◽  
Mattia Longhin ◽  
Mukesh K. Kulsreshath ◽  
Alain J. Kreisler ◽  
Annick F. Dégardin
Keyword(s):  
Thin Film ◽  
Infrared Imaging ◽  
Far Infrared ◽  
Ybco Thin Film

scholarly journals Deep ISOPHOT far-infrared imaging of M 86

2002 ◽  
Vol 397 (2) ◽  
pp. 503-515 ◽  
Author(s):  
M. Stickel ◽  
J. N. Bregman ◽  
A. C. Fabian ◽  
D. A. White ◽  
D. M. Elmegreen
Keyword(s):  
Infrared Imaging ◽  
Far Infrared

scholarly journals ALMA view of the circumnuclear disk of the Galactic Center: tidally disrupted molecular clouds falling to the Galactic Center

2018 ◽  
Vol 70 (5) ◽  
Author(s):  
Masato Tsuboi ◽  
Yoshimi Kitamura ◽  
Kenta Uehara ◽  
Takahiro Tsutsumi ◽  
Ryosuke Miyawaki ◽  
...  
Keyword(s):  
Molecular Clouds ◽  
Galactic Center ◽  
Circumnuclear Disk

Far-infrared imaging spectroscopy with SAFIRE on SOFIA

2003 ◽  
Author(s):  
Dominic J. Benford ◽  
S. H. Moseley ◽  
Gordon J. Stacey ◽  
Richard A. Shafer ◽  
Johannes G. Staguhn
Keyword(s):  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Far Infrared
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