On infrared excess emission from HZ Herculis

Ghosh, S. K. ; Verma, R. P. ; Srivastava, R. K. ; Iyengar, K. V. K. (1989) On infrared excess emission from HZ Herculis Acta Astronomica, 39 (1). pp. 69-73. ISSN 0001-5237

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Abstract

Results are reported from photometric observations of HZ Her, obtained in the NIR using a liquid-nitrogen-cooled InSb detector on the 1-m telescope at Uttar Pradesh State Observatory on April 6, 1987, equivalent to binary orbital phase phi(1.7) = 0.88-0.94. The data are presented in tables and graphs and briefly characterized. The 1.6-micron excess reported by Gnedin et al. (1986) for the same orbital phase was not confirmed.

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