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Published April 1969 | Published
Journal Article Open

Infrared Observations of Eta Carinae to 20 Microns


Measurements of η Carinae have been obtained at 4.8, 10.1, and 19.5 μ which show a continued increase in flux density into the infrared. The bolometric magnitude is estimated to be -12.

Additional Information

© 1969 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received February 28, 1969. It is a pleasure to thank Dr. W. Sargent and E. Becklin for many discussions, Dr. F. Low for providing us with his 20-μ magnitudes, and Dr. Ulrich Haug for making UBV measurements of η Car. We again thank Dr. Victor Blanco, the director of the Cerro Tololo Inter-American Observatory, and all of his staff for their unfailing hospitality and assistance. We specially thank the extremely capable night assistants Messrs. Carlos Bolelli, Edgardo Figeroa, Ricardo Gonzales, and Patricia Zamorano for their help in making these observations, and Messrs. Duane Ludden and Frank Guzzoni for their operational support. This work was supported in part by National Science Foundation grant GP 15-25 and National Aeronautics and Space Administration grant NGL 05-002-007.

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Published - 1969ApJ___156L__45W.pdf


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