The Sb galaxy NGC 4736 has a well observed ring of bright HII regions just outside its bulge, at some 1.3 kpc from the nucleus, with an apparent expansion...
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PublicationGas flow, population structure and starburst activity in the central zone of NGC 4736
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PublicationGlobal morphology and physical relations between the stars, gas and dust in the disc and arms of M100.
We study star formation processes in the disc of the weakly barred grand design spiral galaxy M100 (NGC 4321) from a variety of images tracing recent massive...
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PublicationGradients of excitation in the nuclei of starburst galaxies
The use of long-slit spectroscopy at high spectral and spatial resolution has made it possible to measure gradients of gaseous excitation and also velocity...
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PublicationH II region statistics in spirals
High-resolution maps of the spiral galaxies NGC 3992 and NGC 4321, obtained with the Taurus camera at the 4.2-m William Herschel Telescope are analyzed. The...
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PublicationHow a dust concentration mimics dynamical signatures around the nucleus of NGC 7331.
Where the pheonomenon of wavelength-dependent kinematics has been observed in galaxies, it has been well modelled as a dust extinction effect. Therefore...
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PublicationInfrared properties of five spiral galaxies
The radial profiles of five spiral galaxies (NGC 5194, NGC 3627, NGC 3351, NGC 5055, NGC 4736) in the J and K filters of the near infrared are presented. They...
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PublicationInternal kinematics of the most luminous HII regions in M100
We have used the TAURUS Fabry-Perot mapping spectrometer on the WHT to produce a complete kinematic map of the disc of M100 in H-alpha. Here we show how the...
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TalkIonization of the diffuse gas in galaxies: hot low-mass evolved stars at work
We revisit the question of the ionization of the diffuse medium in late type galaxies, by studying NGC 891, the prototype of edge-on spiral galaxies. The most...
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DocumentIonized gas kinematics and massive star formation in NGC 1530
Abstract. We present emission line mapping of the strongly barred galaxy NGC 1530 obtained using Fabry-P´erot interferometry in Hα, at significantly enhanced...