About: The Galactic centre mini-spiral in the mm-regime

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About: The Galactic centre mini-spiral in the mm-regime Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Our observations were carried out at 1.3 mm and 3 mm with the mm interferometric array CARMA in California in March and April 2009, with the MIR instrument VISIR at ESO’s VLT in June 2006, and the NIR Brγ with VLT NACO in August 2009. We present high resolution maps of the mini-spiral, and obtain a spectral index of 0.5 for Sgr A, indicating an inverted synchrotron spectrum. We find electron densities within the range 0.8-1.5 10^4 cm-3 for the mini-spiral from the radio continuum maps, along with a dust mass contribution of 0.25 M_S from the MIR dust continuum, and extinctions ranging from 1.8–3 in the Brγ line. We observe a mixture of negative and positive spectral indices, which we interpret as evidence that there are a range of contributions to the thermal free-free emission by the ionized gas emission and by dust at 1.3 mm. Our observations were carried out at 1.3 mm and 3 mm with the mm interferometric array CARMA in California in March and April 2009, with the MIR instrument VISIR at ESO’s VLT in June 2006, and the NIR Brγ with VLT NACO in August 2009. We present high resolution maps of the mini-spiral, and obtain a spectral index of 0.5 for Sgr A, indicating an inverted synchrotron spectrum. We find electron densities within the range 0.8-1.5 10^4 cm-3 for the mini-spiral from the radio continuum maps, along with a dust mass contribution of 0.25 M_S from the MIR dust continuum, and extinctions ranging from 1.8–3 in the Brγ line. We observe a mixture of negative and positive spectral indices, which we interpret as evidence that there are a range of contributions to the thermal free-free emission by the ionized gas emission and by dust at 1.3 mm. (en)
Title	The Galactic centre mini-spiral in the mm-regime The Galactic centre mini-spiral in the mm-regime (en)
skos:prefLabel	The Galactic centre mini-spiral in the mm-regime The Galactic centre mini-spiral in the mm-regime (en)
skos:notation	RIV/67985815:_____/12:00374254!RIV13-AV0-67985815
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z10030501)
http://linked.open...iv/cisloPeriodika	February
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Karas, Vladimír Kunneriath, Devaky
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	137674
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/12:00374254
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	galactic centre; black holes (en)
http://linked.open.../riv/klicoveSlovo	black holes galactic centre
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[94E252BD3114]
http://linked.open...i/riv/nazevZdroje	Astronomy & Astrophysics
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	13 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	538
http://linked.open...iv/tvurceVysledku	Eckart, A. García-Marín, M. Karas, Vladimír Moultaka, J. Muzic, K. Schoedel, R. Straubmeier, C. Valencia-S, M. Kunneriath, Devaky Vogel, S. N. Zensus, J. A. Staguhn, J. Teuben, P.
http://linked.open...ain/vavai/riv/wos	000300614100127
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika
issn	0004-6361
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1051/0004-6361/201117676

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