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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy & Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

551

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

31

Strana od-do

"A18/1"-"A18/31"

Kód UT WoS článku

000316460600018

EID výsledku v databázi Scopus

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