Abstract
Because interstellar dust is closely related to the evolution of matter in the galactic environment and many other astrophysical phenomena, the laboratory synthesis of interstellar dust analogs has received significant attention over the past decade. To simulate the ultraviolet (UV) interstellar extinction feature at 217.5 nm originating from carbonaceous interstellar dust, many reports focused on the UV absorption properties of laboratory-synthesized interstellar dust analogs. However, no general relation has been established between UV interstellar extinction and artificial interstellar dust analogs. Here, we show that defective carbon nanostructures prepared by high-energy collisions exhibit a UV absorption feature at 220 nm which we suggest accounts for the UV interstellar extinction at 217.5 nm. The morphology of some carbon nanostructures is similar to that of nanocarbons discovered in the Allende meteorite. The similarity between the absorption feature of the defective carbon nanostructures and UV interstellar extinction indicates a strong correlation between the defective carbon nanostructures and interstellar dust.
| Original language | English |
|---|---|
| Pages (from-to) | 1456-1461 |
| Number of pages | 6 |
| Journal | Astronomical Journal |
| Volume | 140 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Nov 1 2010 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Cite this
Interstellar analogs from defective carbon nanostructures account for interstellar extinction. / Tan, Zhenquan; Chihara, Hiroki; Koike, Chiyoe; Abe, Hiroya; Kaneko, Kenji; Sato, Kazuyoshj; Ohara, Satoshi.
In: Astronomical Journal, Vol. 140, No. 5, 01.11.2010, p. 1456-1461.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interstellar analogs from defective carbon nanostructures account for interstellar extinction
AU - Tan, Zhenquan
AU - Chihara, Hiroki
AU - Koike, Chiyoe
AU - Abe, Hiroya
AU - Kaneko, Kenji
AU - Sato, Kazuyoshj
AU - Ohara, Satoshi
PY - 2010/11/1
Y1 - 2010/11/1
N2 - Because interstellar dust is closely related to the evolution of matter in the galactic environment and many other astrophysical phenomena, the laboratory synthesis of interstellar dust analogs has received significant attention over the past decade. To simulate the ultraviolet (UV) interstellar extinction feature at 217.5 nm originating from carbonaceous interstellar dust, many reports focused on the UV absorption properties of laboratory-synthesized interstellar dust analogs. However, no general relation has been established between UV interstellar extinction and artificial interstellar dust analogs. Here, we show that defective carbon nanostructures prepared by high-energy collisions exhibit a UV absorption feature at 220 nm which we suggest accounts for the UV interstellar extinction at 217.5 nm. The morphology of some carbon nanostructures is similar to that of nanocarbons discovered in the Allende meteorite. The similarity between the absorption feature of the defective carbon nanostructures and UV interstellar extinction indicates a strong correlation between the defective carbon nanostructures and interstellar dust.
AB - Because interstellar dust is closely related to the evolution of matter in the galactic environment and many other astrophysical phenomena, the laboratory synthesis of interstellar dust analogs has received significant attention over the past decade. To simulate the ultraviolet (UV) interstellar extinction feature at 217.5 nm originating from carbonaceous interstellar dust, many reports focused on the UV absorption properties of laboratory-synthesized interstellar dust analogs. However, no general relation has been established between UV interstellar extinction and artificial interstellar dust analogs. Here, we show that defective carbon nanostructures prepared by high-energy collisions exhibit a UV absorption feature at 220 nm which we suggest accounts for the UV interstellar extinction at 217.5 nm. The morphology of some carbon nanostructures is similar to that of nanocarbons discovered in the Allende meteorite. The similarity between the absorption feature of the defective carbon nanostructures and UV interstellar extinction indicates a strong correlation between the defective carbon nanostructures and interstellar dust.
UR - http://www.scopus.com/inward/record.url?scp=78049356370&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78049356370&partnerID=8YFLogxK
U2 - 10.1088/0004-6256/140/5/1456
DO - 10.1088/0004-6256/140/5/1456
M3 - Article
AN - SCOPUS:78049356370
VL - 140
SP - 1456
EP - 1461
JO - Astronomical Journal
JF - Astronomical Journal
SN - 0004-6256
IS - 5
ER -