Small-scale structure of the core of M33 /NGC 598/

Details Small-scale structure of the core of M33 /NGC 598/ Small-scale structure of the core of M33 /NGC 598/

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101..187h&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 2, Aug. 1981, p. 187-190.

Astronomy and Astrophysics

Astrophysics

3

Astronomical Photography, Galactic Nuclei, Galactic Structure, Hydrogen Clouds, Imaging Techniques, Ring Structures, Bandpass Filters, Cores, Forbidden Bands, H Alpha Line, Monochromatic Radiation, Nitrogen, Photons, Radiation Counters

Scientific paper

Monochromatic images obtained with an image photon counting system intended for use on a 3.6 m telescope are presented. The images were obtained through narrow bandpass interference filters centered on H-alpha, N II forbidden line 6584 A, and at a continuum wavelength of 6040 A. The detector was placed at the F/15 Cassegrain focus of a 193 cm telescope, and led to the detection of a double ring structure in the vicinity of the purported nucleus at the center of the nearest Sc galaxy, M33 (NGC 598), which had previously been too faint to study.

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