Sub - Arcsecond Near - Infrared Images of Massive Star Formation Region NGC 6334
نویسندگان
چکیده
We present high spatial resolution (0.3) polarimetric images in the H and K bands and direct images in the L and M ′ bands of the NGC 6334 V infrared nebulae. The images show complex structures including the multi-shells and various knots in the nebulae. The appearances and colors of the eastern and western nebulae differ considerably. Our polarization images also show differences between the illuminating sources of the nebulae: the eastern nebula is illuminated by a deeply embedded mid-infrared source, KDJ 4, and the western nebula by our newly detected near-infrared source, WN-A1. The degree of polarization of the nebulae is very large, up to 70% at K and 60% at H , which is consistent with a single scattering of near-infrared radiation from each source at the walls of the mass outflows.
منابع مشابه
The NGC 6334 IV massive star formation site : a cluster in the making ? ?
Sub-arcsecond JHK images of the star formation region NGC 6334 IV covering 14.7 sq arcmin have been obtained. These were supplemented by H2 and Brγ images of the central 2 sq arcmin. A total of 1238 sources brighter than K ' 17 were detected. Due to the very high extinction in this region, only 685 of these are brighter at 1.2 μm than our limit, J ' 20. Only less than 5% of the sources exhibit ...
متن کاملWide-field Infrared Imaging Polarimetry of the Ngc 6334 Region: a Nest of Infrared Reflection Nebulae
We report the detection of eighteen infrared reflection nebulae (IRNe) in the J , H , & Ks linear polarimetric observations of the NGC 6334 massive star-formation complex, of which 16 IRNe are new discoveries. Our images cover ∼180 square arcminutes, one of the widest near-infrared polarization data in star-formation regions so far. These IRNe are most likely associated with embedded young OB s...
متن کاملA cobweb of filaments and protostars
We present high resolution (sub)mm continuum maps obtained with the bolometer UKT14 on the JCMT of the high mass star formation complex NGC 6334 I and I(N), the latter also known as Gezari’s cold source (Gezari 1982). The maps at 1.1 mm and 800 μm cover the whole northern part of the NGC 6334 complex (∼ 5′ × 8′), while the coverage is more limited at 450 μm and 350 μm and centered on NGC 6334 I...
متن کاملHigh Circular Polarisation in the Star Forming RegionNGC 6334 :
The amino-acids which form the building blocks of biological proteins are all left-handed molecules. By contrast, when these molecules are made in the laboratory equal numbers of the right and left-handed versions are made. This homochirality found in biological material may well be a prerequisite for the origin of life and a number of processes have been proposed to produce the required enanti...
متن کاملCompact Centimeter and Millimeter Sources in NGC 6334 I ( N ) : OB Stars in the Making ?
We present sensitive, high angular resolution 1.3 cm and 7 mm observations of the massive core NGC 6334 I(N), a region known to be undergoing massive star formation. At 1.3 cm we detect three sources, of which two had been previously detected at centimeter or millimeter wavelengths. At 7 mm we detect four sources. We suggest that three of these sources are subcomponents of the millimeter source...
متن کامل