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A Search for Exozodiacal Dust and Faint Companions near Sirius, Procyon, and Altair with the NICMOS Coronagraph

Marc J. Kuchner and Michael E. Brown
Publications of the Astronomical Society of the Pacific
Vol. 112, No. 772 (June 2000), pp. 827-832
DOI: 10.1086/316581
Stable URL: http://www.jstor.org/stable/10.1086/316581
Page Count: 6
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A Search for Exozodiacal Dust and Faint Companions near
Sirius, Procyon, and Altair with the
NICMOS Coronagraph
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Abstract

ABSTRACT We observed Sirius, Altair, and Procyon with the NICMOS coronagraph on the Hubble Space Telescope to look for scattered light from exozodiacal dust and faint companions within 10 AU from these stars. We did not achieve enough dynamic range to surpass the upper limits set by IRAS on the amount of exozodiacal dust in these systems, but we did set strong upper limits on the presence of nearby late‐type and substellar companions.

Notes and References

This item contains 28 references.

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