NGC 362 - More arguments for dust in globular clusters

Details NGC 362 - More arguments for dust in globular clusters NGC 362 - More arguments for dust in globular clusters

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...338..136m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 338, March 1, 1989, p. 136-139. Research supported by the Universidad Nacio

Astronomy and Astrophysics

Astronomy

8

Astronomical Photometry, Cosmic Dust, Globular Clusters, Ultraviolet Astronomy, Charge Coupled Devices, Interstellar Gas, Southern Sky

Scientific paper

Following the detection of dust clouds in several globular clusters (Forte and Mendez), we present new U CCD data of the southern globular cluster NGC 362. Image processing shows the existence of dark patches distributed asymmetrically around the center of the cluster. Three different types of arguments are used to identify these patches as dark clouds within the cluster, namely (1) color mapping; (2) improved resolution images using modified unsharp masking technique; (3) behavior of the apparent extinction with wavelength. Finally, a total dust mass of about 0.1 solar mass is estimated for the cloud complex.

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