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Statements

Subject Item
n2:RIV%2F67985815%3A_____%2F12%3A00374254%21RIV13-AV0-67985815
rdf:type
skos:Concept n14:Vysledek
dcterms: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.
dcterms:title
The Galactic centre mini-spiral in the mm-regime The Galactic centre mini-spiral in the mm-regime
skos:prefLabel
The Galactic centre mini-spiral in the mm-regime The Galactic centre mini-spiral in the mm-regime
skos:notation
RIV/67985815:_____/12:00374254!RIV13-AV0-67985815
n14:predkladatel
n18:ico%3A67985815
n3:aktivita
n9:Z
n3:aktivity
Z(AV0Z10030501)
n3:cisloPeriodika
February
n3:dodaniDat
n12:2013
n3:domaciTvurceVysledku
n8:6172059 n8:5011833
n3:druhVysledku
n6:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
137674
n3:idVysledku
RIV/67985815:_____/12:00374254
n3:jazykVysledku
n4:eng
n3:klicovaSlova
galactic centre; black holes
n3:klicoveSlovo
n16:black%20holes n16:galactic%20centre
n3:kodStatuVydavatele
FR - Francouzská republika
n3:kontrolniKodProRIV
[94E252BD3114]
n3:nazevZdroje
Astronomy & Astrophysics
n3:obor
n11:BN
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
13
n3:rokUplatneniVysledku
n12:2012
n3:svazekPeriodika
538
n3:tvurceVysledku
Schoedel, R. Vogel, S. N. Muzic, K. Eckart, A. Teuben, P. Valencia-S, M. Moultaka, J. Kunneriath, Devaky García-Marín, M. Straubmeier, C. Staguhn, J. Zensus, J. A. Karas, Vladimír
n3:wos
000300614100127
n3:zamer
n19:AV0Z10030501
s:issn
0004-6361
s:numberOfPages
8
n10:doi
10.1051/0004-6361/201117676