THE EXCITING YOUNG STELLAR OBJECT FOR THE MOLECULAR OUTFLOW AT THE CORE OF L1287

被引:41
作者
WEINTRAUB, DA [1 ]
KASTNER, J [1 ]
机构
[1] NEROC,MIT,HAYSTACK OBSERV,WESTFORD,MA 01886
关键词
ISM; INDIVIDUAL; (L1287); JETS AND OUTFLOWS; POLARIZATION; STARS; PRE-MAIN-SEQUENCE;
D O I
10.1086/172879
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Using infrared imaging, we demonstrate that a bipolar reflection nebula is associated with the nebula GN 00.33.9 at the core of the dark cloud L1287 and that these bipolar extensions are oriented with the molecular gas outflow lobes in this region. The polarization patterns in the high-resolution polarimetric maps indicate that the position of the primary source of illumination for these bipolar dust features lies to the north of both RNO 1B and RNO 1C. No near-infrared point source appears at the position in the images. In addition, the colors in the reflection nebulosity suggest the illuminating source is redder than either RNO 1B or RNO 1C. We suggest, therefore, that a previously unidentified YSO, one more deeply embedded than either RNO 1B or RNO 1C, is probably the driving source of the outflow. As the nominal position of IRAS 00338+6312 lies within 1.''5 of the position of this newly identified YSO, we suggest that these are the same object. The colors and wavelength-dependent polarization levels in the vicinity of RNO 1C are most consistent with RNO 1C being a protostellar source.
引用
收藏
页码:767 / 772
页数:6
相关论文
共 15 条
[1]   RED AND NEBULOUS OBJECTS IN DARK CLOUDS - SURVEY [J].
COHEN, M .
ASTRONOMICAL JOURNAL, 1980, 85 (01) :29-35
[2]  
FUKUI Y, 1989, LOW MASS STAR FORMAT, P95
[3]   THE JUGGLER - A 3-LOBED NEAR-INFRARED REFLECTION NEBULA TOWARD CRL-2136 = OH-17.6 + 0.2 [J].
KASTNER, JH ;
WEINTRAUB, DA ;
ASPIN, C .
ASTROPHYSICAL JOURNAL, 1992, 389 (01) :357-368
[4]   RNO 1B/1C - A DOUBLE FU ORIONIS SYSTEM [J].
KENYON, SJ ;
HARTMANN, L ;
GOMEZ, M ;
CARR, JS ;
TOKUNAGA, A .
ASTRONOMICAL JOURNAL, 1993, 105 (04) :1505-1510
[5]   STUDIES OF DUST GRAIN PROPERTIES IN INFRARED REFLECTION NEBULAE [J].
PENDLETON, YJ ;
TIELENS, AGGM ;
WERNER, MW .
ASTROPHYSICAL JOURNAL, 1990, 349 (01) :107-119
[6]  
ROUAN D, 1988, ASTRON ASTROPHYS, V189, pL3
[7]  
SCARROTT SM, 1991, VISTAS ASTRON, V34, P163
[8]   MOLECULAR OUTFLOWS ASSOCIATED WITH A FLUX-LIMITED SAMPLE OF BRIGHT FAR-INFRARED SOURCES [J].
SNELL, RL ;
DICKMAN, RL ;
HUANG, YL .
ASTROPHYSICAL JOURNAL, 1990, 352 (01) :139-148
[9]  
STAUDE HJ, 1991, ASTRON ASTROPHYS, V244, pL13
[10]   NEAR-INFRARED POLARIZED IMAGES OF A NEBULA AROUND T-TAURI [J].
WEINTRAUB, DA ;
KASTNER, JH ;
ZUCKERMAN, B ;
GATLEY, I .
ASTROPHYSICAL JOURNAL, 1992, 391 (02) :784-804