Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic center

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F13%3A00423355" target="_blank" >RIV/67985815:_____/13:00423355 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201219994" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201219994</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201219994" target="_blank" >10.1051/0004-6361/201219994</a>

Result language
angličtina
Original language name
Near-infrared proper motions and spectroscopy of infrared excess sources at the Galactic center
Original language description
We present a first K-s-band identification and proper motions of the IRS13N members, the high-velocity dusty S-cluster object (DSO, also referred to as G2), and other infrared excess sources in the central field. Goal is to constrain the nature of thesesource. We show that within the uncertainties, the positions and proper motions of the IRS13N sources in K-s- and L'-band are identical. The HK- sL' colors then indicate that the bright L'-band IRS13N sources are indeed dust-enshrouded stars rather thancore-less dust clouds. The proper motions also show that the IRS13N sources are not strongly gravitationally bound to each other. Combined with their NIR colors, this implies that they have been formed recently. For the DSO we obtain proper motions and aK-s-L'-color.
Czech name
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Czech description
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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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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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