TY - JOUR
T1 - Hα kinematics of S4G spiral galaxies - I. NGC 864
AU - Erroz-Ferrer, S.
AU - Knapen, Johan H.
AU - Font, Joan
AU - Beckman, John E.
AU - Falcón-Barroso, Jesús
AU - Sánchez-Gallego, José Ramón
AU - Athanassoula, E.
AU - Bosma, Albert
AU - Gadotti, Dimitri A.
AU - Muñoz-Mateos, Juan Carlos
AU - Sheth, Kartik
AU - Buta, Ronald J.
AU - Comerón, Sébastien
AU - de Paz, Armando Gil
AU - Hinz, Joannah L.
AU - Ho, Luis C.
AU - Kim, Taehyun
AU - Laine, Jarkko
AU - Laurikainen, Eija
AU - Madore, Barry F.
AU - Menéndez-Delmestre, Karín
AU - Mizusawa, Trisha
AU - Regan, Michael W.
AU - Salo, Heikki
AU - Seibert, Mark
PY - 2012/12/21
Y1 - 2012/12/21
N2 - We present a study of the kinematics of the isolated spiral galaxy NGC864, using Ha Fabry- Perot data obtained with the Galaxy Ha Fabry-Perot System (GHaFaS) instrument at the William Herschel Telescope in La Palma, complemented with images at 3.6 μm, in the R band and in Ha filter, and integral-field spectroscopic data. The resulting data cubes and velocity maps allow the study of the kinematics of the galaxy, including in-depth investigations of the rotation curve, velocity moment maps, velocity residual maps, gradient maps and position- velocity diagrams. We find asymmetries in the velocity field in the bar zone, caused by non-circular motions, probably in response to the potential of the bar. We also find a flatprofile bar, in agreement with the strong bar, with the grand design spiral pattern, and withthe gap between the ends of the bar and the start of the spiral arms. We quantify the rate of massive star formation, which is concentrated in the twospiral arms.
AB - We present a study of the kinematics of the isolated spiral galaxy NGC864, using Ha Fabry- Perot data obtained with the Galaxy Ha Fabry-Perot System (GHaFaS) instrument at the William Herschel Telescope in La Palma, complemented with images at 3.6 μm, in the R band and in Ha filter, and integral-field spectroscopic data. The resulting data cubes and velocity maps allow the study of the kinematics of the galaxy, including in-depth investigations of the rotation curve, velocity moment maps, velocity residual maps, gradient maps and position- velocity diagrams. We find asymmetries in the velocity field in the bar zone, caused by non-circular motions, probably in response to the potential of the bar. We also find a flatprofile bar, in agreement with the strong bar, with the grand design spiral pattern, and withthe gap between the ends of the bar and the start of the spiral arms. We quantify the rate of massive star formation, which is concentrated in the twospiral arms.
KW - Galaxies
KW - Individual
KW - Kinematics and dynamics-galaxies
KW - NGC 864-galaxies
KW - Spiral-galaxies
KW - Star formation
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U2 - 10.1111/j.1365-2966.2012.21768.x
DO - 10.1111/j.1365-2966.2012.21768.x
M3 - Article
AN - SCOPUS:84885239294
SN - 0035-8711
VL - 427
SP - 2938
EP - 2949
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -