A survey of radio emission from galactic OB stars

A survey of radio emission from galactic OB stars
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银河 OB 星射电发射调查

DOI:
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发表时间:
1989
期刊:
影响因子:
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通讯作者:
E. Churchwell
E. Churchwell
中科院分区:
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文献类型:
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作者:
J. Bieging;D. Abbott;E. Churchwell

文献摘要

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对 88 颗 O 型和早期 B 型恒星的射电连续谱观测进行了检查。给出了这些恒星的子集的结果,该子集形成了距离太阳 2.5 kpc 以内的所有 OB 恒星的距离限制样本。质量损失率是针对 HD 15570、HD 166734、HD 151804、HD 152408、Alpha Cam、HD 169454 和 Zeta Sco 得出的。我们发现所有这些非常明亮的 OB 星都以每年 10 到 -5 个太阳质量的速度损失质量。多频观测证实了 Zeta Pup 的自由-自由解释,并为自由-自由源 P Cygni 和 Cyg OB2 No. 12. 63 refs 的变异性提供了证据。
Radio continuum observations of 88 O-type and early B-type stars are examined. Results are presented for a subset of these stars which forms a distance-limited sample of all OB stars within 2.5 kpc of the sun. Mass loss rates are derived for HD 15570, HD 166734, HD 151804, HD 152408, Alpha Cam, HD 169454, and Zeta Sco. All of these very luminous OB stars are found to be losing mass at a rate on the order of 10 to the -5 solar masses/yr. Multifrequency observations confirm the free-free interpretation for Zeta Pup and provide evidence for variability in the free-free sources P Cygni and Cyg OB2 No. 12. 63 refs.