Discovery of SiO Band Emission from Galactic B[e] Supergiants
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00444950" target="_blank" >RIV/67985815:_____/15:00444950 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/2041-8205/800/2/L20" target="_blank" >http://dx.doi.org/10.1088/2041-8205/800/2/L20</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2041-8205/800/2/L20" target="_blank" >10.1088/2041-8205/800/2/L20</a>
Alternative languages
Result language
angličtina
Original language name
Discovery of SiO Band Emission from Galactic B[e] Supergiants
Original language description
We obtained high-resolution near-infrared L-band spectra for a sample of Galactic B[e] SGs with reported CO band emission. We clearly detect emission from the SiO first-overtone bands in CPD-52 9243 and indications for faint emission in HD 62623, HD 327083, and CPD-57 2874. From model fits, we find that in all these stars the SiO bands are rotationally broadened with a velocity lower than observed in the CO band forming regions, suggesting that SiO forms at larger distances from the star. Hence, searching for and analyzing these bands is crucial for studying the structure and kinematics of circumstellar disks, because they trace complementary regions to the CO band formation zone. Moreover, since SiO molecules are the building blocks for silicate dust,their study might provide insight in the early stage of dust formation.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-21373S" target="_blank" >GA14-21373S: Unveiling the mass-loss history of evolved massive stars</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8205
e-ISSN
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Volume of the periodical
800
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
"L20/1"-"L20/5"
UT code for WoS article
000349692900001
EID of the result in the Scopus database
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