Hydrocarbons from shocked carbonaceous dust
نویسندگان
چکیده
منابع مشابه
Optical properties of carbonaceous dust analogues
Structurally different carbon materials with an increasing sp2/sp3 ratio were synthesized by pyrolizing cellulose materials at 400, 600, 800 and 1000 oC . The hybridization ratios and the internal structures in these sampleswere determined by using High Resolution Transmission Electron Microscopy, Electron Energy Loss Spectroscopy, Raman spectroscopy, IR spectroscopy and elemental combustion an...
متن کاملCarbonaceous onion-like particles as a component of interstellar dust
The search for the carrier of the 217.5 nm absorption feature in the interstellar extinction curve has been undertaken for the past few decades. We have previously discussed a carbonaceous material named quenched carbonaceous composite (QCC) as a laboratory analog for the interstellar material producing this absorption feature. QCC is condensed from an ejecta of hydrocarbon plasma. High-resolut...
متن کاملBacterial morphologies in carbonaceous meteorites and comet dust
Three decades ago the first convincing evidence of microbial fossils in carbonaceous chondrites was discovered and reported by Hans Dieter Pflug and his collaborators. In addition to morphology, other data, notably laser mass spectroscopy, confirmed the identification of such structures as putative bacterial fossils. Balloon-borne cryosampling of the stratosphere enables recovery of fragile com...
متن کاملWhat can we learn about protoplanetary disks from analysis of mid - infrared carbonaceous dust emission ? ⋆
Context. The disks of gas and dust that form around young stars and can lead to planet formation contain polycyclic aromatic hydrocarbons (PAHs) and very small grains (VSGs). Aims. In this Paper we analyze the mid-infrared (mid-IR) emission of these very small dust particles in a sample of 12 protoplanetary disks. Our goal is twofold: first we want to characterize the properties of these partic...
متن کاملWhat can we learn on protoplanetary disks from the analysis of mid - infrared carbonaceous dust emission ? ⋆
Context. The disks of gas and dust that form around young stars and can lead to planet formation contain polycyclic aromatic hydrocarbons (PAHs) and very small grains (VSGs). Aims. In this Paper we analyze the mid-infrared (mid-IR) emission of these very small dust particles in a sample of 12 protoplanetary disks. Our goal is twofold: first we want to characterize the properties of these partic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1993
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/260.2.280