The Juggler - A three-lobed near-infrared reflection nebula toward CRL 2136 = OH 17.6 + 0.2

Abstract

view Abstract Citations (38) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Juggler: A Three-lobed Near-Infrared Reflection Nebula toward CRL 2136 = OH 17.6+0.2 Kastner, Joel H. ; Weintraub, David A. ; Aspin, C. Abstract Near-IR polarimetric images of a complex nebula toward CRL 2136 = OH 17.6 + 0.2, an optically obscured maser source, are presented. The 2.2-micron images reveal three main lobes oriented in a triangle, with peaks separated by 5-8 arcsec. Two of the lobes extend over 30 arcsec from the center of the nebula, and one possesses filimentary structure. On the basis of the high degree and patterns of linear polarization throughout the nebula, it is concluded that the extended flux is due to scattering-off dust grains. It is inferred from the distribution of polarized light that a central source illuminates paraboloid or conical cavities within a dust envelope that is otherwise opaque to near-IR photons. The detection of a narrow, intense (46 +/-5 Jy) 22-GHz H2 maser line is confirmed at 26.3 km/s, which appears to coincide with prior detections of CO, CH, and HCN near that velocity. A model is proposed for explaining the dependence of polarization on wavelength previously reported for large aperture observations of CRL 2136 and several other protostars. Publication: The Astrophysical Journal Pub Date: April 1992 DOI: 10.1086/171210 Bibcode: 1992ApJ...389..357K Keywords: Astronomical Polarimetry; Infrared Imagery; Infrared Sources (Astronomy); Interstellar Masers; Near Infrared Radiation; Reflection Nebulae; Star Formation; Linear Polarization; Protostars; Stellar Spectrophotometry; Astrophysics; INFRARED: INTERSTELLAR: CONTINUUM; ISM: INDIVIDUAL ALPHANUMERIC: CRL 2136; ISM: REFLECTION NEBULAE; ISM: STRUCTURE; STARS: FORMATION full text sources ADS | data products SIMBAD (47)