Near infrared observations of cygnus X-3

John N. Bahcall; Neta A. Bahcall

doi:10.1038/247446a0

Near infrared observations of cygnus X-3

John N. Bahcall, Neta A. Bahcall

Astrophysical Sciences

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Abstract

THE system known as Cygnus X-3 has been extensively studied at radio wavelengths (where it exhibits extraordinary variability^1-3), in X rays (where it exhibits a 4.8 h period^4-6), and in the infrared at 1.6 and 2.2 μm (where it also displays a 4.8 h period as well as large flares^7,8). Attempts have also been made to detect Cyg X-3 in visual and near infrared wavelengths^9,10. Here we present the results of a series of observations made at near infrared wavelengths, λ _effective ≃0.85 μm on ten nights in July and August 1973.

Original language	English (US)
Pages (from-to)	446-447
Number of pages	2
Journal	Nature
Volume	247
Issue number	5441
DOIs	https://doi.org/10.1038/247446a0
State	Published - 1974

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title = "Near infrared observations of cygnus X-3",

abstract = "THE system known as Cygnus X-3 has been extensively studied at radio wavelengths (where it exhibits extraordinary variability1-3), in X rays (where it exhibits a 4.8 h period4-6), and in the infrared at 1.6 and 2.2 μm (where it also displays a 4.8 h period as well as large flares7,8). Attempts have also been made to detect Cyg X-3 in visual and near infrared wavelengths9,10. Here we present the results of a series of observations made at near infrared wavelengths, λ effective ≃0.85 μm on ten nights in July and August 1973.",

author = "Bahcall, \{John N.\} and Bahcall, \{Neta A.\}",

year = "1974",

doi = "10.1038/247446a0",

language = "English (US)",

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pages = "446--447",

journal = "Nature",

issn = "0028-0836",

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T1 - Near infrared observations of cygnus X-3

AU - Bahcall, John N.

AU - Bahcall, Neta A.

PY - 1974

Y1 - 1974

N2 - THE system known as Cygnus X-3 has been extensively studied at radio wavelengths (where it exhibits extraordinary variability1-3), in X rays (where it exhibits a 4.8 h period4-6), and in the infrared at 1.6 and 2.2 μm (where it also displays a 4.8 h period as well as large flares7,8). Attempts have also been made to detect Cyg X-3 in visual and near infrared wavelengths9,10. Here we present the results of a series of observations made at near infrared wavelengths, λ effective ≃0.85 μm on ten nights in July and August 1973.

AB - THE system known as Cygnus X-3 has been extensively studied at radio wavelengths (where it exhibits extraordinary variability1-3), in X rays (where it exhibits a 4.8 h period4-6), and in the infrared at 1.6 and 2.2 μm (where it also displays a 4.8 h period as well as large flares7,8). Attempts have also been made to detect Cyg X-3 in visual and near infrared wavelengths9,10. Here we present the results of a series of observations made at near infrared wavelengths, λ effective ≃0.85 μm on ten nights in July and August 1973.

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VL - 247

SP - 446

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JO - Nature

JF - Nature

IS - 5441

ER -

Near infrared observations of cygnus X-3

Abstract

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