Infrared detection of the low-mass companion to Zeta Aquarii B

Details Infrared detection of the low-mass companion to Zeta Aquarii B Infrared detection of the low-mass companion to Zeta Aquarii B

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259l..75m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 259, Aug. 15, 1982, p. L75-L78.

Astronomy and Astrophysics

Astronomy

4

Binary Stars, Companion Stars, Infrared Astronomy, Stellar Radiation, Infrared Stars, Interferometry, Speckle Patterns, Stellar Mass, Visibility

Scientific paper

The quadruple system, Zeta Aquarii, has been resolved in the K and L photometric bands by one-dimensional speckle interferometry. An infrared component is detected with a north-south separation from Zeta Aquarii B of 0.17 arcsec (3.9 AU), in agreement with the predicted orbit of a low-mass (0.22 solar mass) companion. This companion has an absolute K-magnitude of 4.4 + or - 0.1 and a K-L color temperature of 1440 + or - 200 K. An upper limit of 7.4 + or - 0.1 is placed on the apparent K-magnitude of the companion to Zeta Aquarii A. These results exhibit nearly the full spatial frequency response of the 3.8 m telescope.

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