Structure and extinction of 30 Doradus and the nearby SNR N157B as measured by a comparison of radio and optical images

John R. Dickel; D. K. Milne; Robert C. Kennicutt; You Hua Chu; Robert A. Schommer

doi:10.1086/116918

Structure and extinction of 30 Doradus and the nearby SNR N157B as measured by a comparison of radio and optical images

John R. Dickel, D. K. Milne, Robert C. Kennicutt, You Hua Chu, Robert A. Schommer

Astronomy

Research output: Contribution to journal › Review article › peer-review

Abstract

A 13 cm radio continuum image of the 30 Doradus region has been made with 7.5″ resolution using the Australia Telescope. It has been compared with a calibrated optical CCD image obtained at Cerro Tololo. The two images are virtually identical, indicating little variation in extinction across the nebula. The mean value of the extinction at H_α is 1.1 mag. The detailed radio image confirms that N157B is a Crab-like (nonshell) SNR with an extent of about 90″ × 70″.

Original language	English (US)
Pages (from-to)	1067-1072
Number of pages	6
Journal	Astronomical Journal
Volume	107
Issue number	3
DOIs	https://doi.org/10.1086/116918
State	Published - Mar 1994

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/116918

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title = "Structure and extinction of 30 Doradus and the nearby SNR N157B as measured by a comparison of radio and optical images",

abstract = "A 13 cm radio continuum image of the 30 Doradus region has been made with 7.5″ resolution using the Australia Telescope. It has been compared with a calibrated optical CCD image obtained at Cerro Tololo. The two images are virtually identical, indicating little variation in extinction across the nebula. The mean value of the extinction at Hα is 1.1 mag. The detailed radio image confirms that N157B is a Crab-like (nonshell) SNR with an extent of about 90″ × 70″.",

author = "Dickel, {John R.} and Milne, {D. K.} and Kennicutt, {Robert C.} and Chu, {You Hua} and Schommer, {Robert A.}",

year = "1994",

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pages = "1067--1072",

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AU - Dickel, John R.

AU - Milne, D. K.

AU - Kennicutt, Robert C.

AU - Chu, You Hua

AU - Schommer, Robert A.

PY - 1994/3

Y1 - 1994/3

N2 - A 13 cm radio continuum image of the 30 Doradus region has been made with 7.5″ resolution using the Australia Telescope. It has been compared with a calibrated optical CCD image obtained at Cerro Tololo. The two images are virtually identical, indicating little variation in extinction across the nebula. The mean value of the extinction at Hα is 1.1 mag. The detailed radio image confirms that N157B is a Crab-like (nonshell) SNR with an extent of about 90″ × 70″.

AB - A 13 cm radio continuum image of the 30 Doradus region has been made with 7.5″ resolution using the Australia Telescope. It has been compared with a calibrated optical CCD image obtained at Cerro Tololo. The two images are virtually identical, indicating little variation in extinction across the nebula. The mean value of the extinction at Hα is 1.1 mag. The detailed radio image confirms that N157B is a Crab-like (nonshell) SNR with an extent of about 90″ × 70″.

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JO - Astronomical Journal

JF - Astronomical Journal

SN - 0004-6256

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ER -

Structure and extinction of 30 Doradus and the nearby SNR N157B as measured by a comparison of radio and optical images

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