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Copernicus spectra and infrared photometry of 42 Orionis (1977)

Hackwell, J. A. ; Snow, T. P., Jr. ; Johnson, H. M. ; [et al.]

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Publication Date: 2019-06-27

Description: The Orion sword star 42 Ori is embedded in a nebula north of and separated from the Orion nebula. The B1 V star is probably normal. Other members of the multiple remain poorly defined, and the nebula may exhibit some peculiarities that may depend on them. Copernicus ultraviolet spectra of the star are described here, especially in the form of tables of wavelength identifications. The properties of the interstellar material in the line of sight are also discussed. Infrared photometry is presented which suggests that the ratio of total to selective extinction ranges from 3 to 3.5 for the interstellar matter in the direction of 42 Ori. The IR photometry provides no evidence for companion stellar or circumstellar components.

Keywords: ASTROPHYSICS

Type: Astronomical Society of the Pacific; vol. 89

Format: text

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