منابع مشابه
Identification of New Near-infrared Dibs in the Orion Nebula
Large organic molecules and carbon clusters are basic building blocks of life, but their existence in the universe has not been confirmed beyond doubt. A number of unidentified absorption features (arising in the diffuse inter-stellar medium), usually called “Diffuse Inter-stellar Bands (DIBs)”, are hypothesized to be produced by large molecules. Among these, buckminsterfullerene C60 has gained...
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We report infrared observations of the planetary nebula Hen 2-113 obtained with VLT/NACO, VLTI/MIDI, VLT/ISAAC and TIMMI at the ESO 3.6m. Hen 2-113 exhibits a clear ring-like structure superimposed to a more diffuse environment visible in the L' (3.8µm), M' (4.78µm) and 8.7µm bands. No clear core at 8.7µm and no fringes through the N band could be detected for this object with MIDI. A qualitati...
متن کاملNew Developments and Future Perspectives of Gaseous Detectors
Gaseous detectors are fundamental components of all present and planned high energy physics experiments. Over the past decade two representatives (GEM, Micromegas) of the Micro-Pattern Gas Detector (MPGD) concept have become increasingly important; the high radiation resistance and excellent spatial and time resolution make them an invaluable tool to confront future detector challenges at the n...
متن کاملPrion inactivation using a new gaseous hydrogen peroxide sterilisation process.
Prions pose a challenge to decontamination, particularly before the re-use of surgical instruments. They have relatively high resistance to standard decontamination methods and require extreme chemical and/or heat-based treatments for devices used in known or suspected cases of disease. This study investigated the effectiveness of a new gaseous hydrogen peroxide sterilisation process for prions...
متن کاملCarbon monoxide -- a "new" gaseous modulator of gene expression.
Carbon monoxide (CO) is an odorless, tasteless and colorless gas which is generated by heme oxygenase enzymes (HOs). HOs degrade heme releasing equimolar amounts of CO, iron and biliverdin, which is subsequently reduced to bilirubin. CO shares many properties with nitric oxide (NO), an established cellular messenger. Both CO and NO are involved in neural transmission and modulation of blood ves...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1879
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.18790961206