RADIO-CONTINUUM FROM THE POWERING SOURCES OF THE RNO-43, HARO-4-255-FIR, B335, AND PV-CEPHEI OUTFLOWS AND FROM THE HERBIG-HARO OBJECT-32A

被引:78
作者
ANGLADA, G
RODRIGUEZ, LF
CANTO, J
ESTALELLA, R
TORRELLES, JM
机构
[1] CSIC,INST ASTROFIS ANDALUCIA,E-18080 GRANADA,SPAIN
[2] NATL AUTONOMOUS UNIV MEXICO,INST ASTRON,MEXICO CITY 04510,DF,MEXICO
[3] INST ESTUDIOS CATALANS,SOC CATALANA FIS,ASTROFIS LAB,BARCELONA,SPAIN
关键词
ISM; INDIVIDUAL; (RNO-43; HARO-4-255; FIR; B335; PV-CEPHEI; HH-32A); JETS AND OUTFLOWS; RADIO CONTINUUM; INTERSTELLAR; STARS; PRE-MAIN-SEQUENCE;
D O I
10.1086/171670
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report a sensitive VLA search for 3.6 cm continuum emission from the central regions of eight outflows. We detected continuum sources in RNO 43, Haro 4-255 FIR, B335, and PV Cephei that are probably associated with the powering sources of these bipolar outflows. For objects with low bolometric luminosity (L(bol) less-than-or-equal-to 100 L.), we find a marginal correlation between the momentum rate in the molecular outflow and the centimeter continuum luminosity, P is-proportional-to S(v) d2. This correlation is in agreement with models that explain the radio continuum emission as arising in shock-ionized gas in the surroundings of the powering source of the molecular outflow. We also detected radio continuum emission from the Herbig-Haro object 32A.
引用
收藏
页码:494 / 500
页数:7
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