The corotation gap in the Galactic H i distribution
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/10/2012
19/10/2012
2009
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| Resumo |
We used the H i data from the LAB Survey to map the ring-shaped gap in H i density that lies slightly outside the solar circle. Adopting R(0) = 7.5 kpc, we find an average gap radius of 8.3 kpc and an average gap width of 0.8 kpc. The characteristics of the H i gap correspond closely to the expected ones, as predicted by theory and by numerical simulations of the gas flow near the corotation resonance. FAPERJ (Fundacao Carlos Chagas Filho de Amparo Pesquisa do Estado do Rio de Janeiro)[E-26/100.457/2008] CNPq (Conselho Nacional para o Desenvolvimento Cientifico e Tecnologico)[150772/2008-4] Fundacao para a Ciencia e Tecnologia (FCT)[SFRH/BPD/42239/2007] |
| Identificador |
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, v.400, n.4, p.1768-1774, 2009 0035-8711 http://producao.usp.br/handle/BDPI/27106 10.1111/j.1365-2966.2009.15611.x |
| Idioma(s) |
eng |
| Publicador |
WILEY-BLACKWELL PUBLISHING, INC |
| Relação |
Monthly Notices of the Royal Astronomical Society |
| Direitos |
restrictedAccess Copyright WILEY-BLACKWELL PUBLISHING, INC |
| Palavras-Chave | #Galaxy: disc #Galaxy: general #Galaxy: kinematics and dynamics #Galaxy: structure #galaxies: spiral #FINAL DATA RELEASE #SPIRAL STRUCTURE #MILKY-WAY #PATTERN SPEED #YOUNG STARS #ABUNDANCE PATTERN #ROTATION CURVE #OPEN CLUSTERS #LAB SURVEY #GALAXY #Astronomy & Astrophysics |
| Tipo |
article original article publishedVersion |
