ISO observations of Wolf-Rayet galaxy Haro 3.

Details ISO observations of Wolf-Rayet galaxy Haro 3. ISO observations of Wolf-Rayet galaxy Haro 3.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...315l.105m&link_type=abstract

Astronomy and Astrophysics, v.315, p.L105-L108

Astronomy and Astrophysics

Astrophysics

27

Infrared: Galaxies: Individual: Haro 3, Galaxies: Starburst, Ism: Molecules, Ism: Dust

Scientific paper

Observations of the blue compact dwarf galaxy Haro 3 have been obtained with the ISOCAM and ISOPHOT instruments on the Infrared Space Observatory (ISO). The PHT-S spectrum (6-12μm) is dominated by four emission bands that are frequently attributed to polycyclic aromatic hydrocarbons (PAHs) and strong SIV emission. Two CAM filters, LW6 (7-8.5μm) and LW3 (12-18μm) were used to map the galaxy. The LW6 image is essentially a map of the galaxy in the 7.7μm PAH feature. The emission in both maps is extended and matches very well a map of the Hα emission. Both maps show coincident single peak emission and a spatial correspondance with the nuclear region of the galaxy and the brightest optical region, an off-axis starburst containing Wolf-Rayet stars. A ratio map of LW6/LW3 images shows two peaks on a ridge elongated along the optical axis of the galaxy.

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