منابع مشابه
Isolated, Massive Supergiants near the Galactic Center
We have carried out a pilot project to assess the feasibility of using radio, infrared, and X-ray emission to identify young, massive stars located between 1 and 25 pc from the Galactic center. We first compared catalogs compiled from the Very Large Array, the Chandra X-ray Observatory, and 2MASS. We identified two massive, young stars: the previously-identified star that is associated with the...
متن کاملNear-Infrared Polarimetry toward the Galactic Center
Near-infrared polarimetry of point sources reveals the presence of a toroidal magnetic field in the central 20’ x 20’ region of our Galaxy. Comparing the Stokes parameters between high extinction stars and relatively low extinction ones, we have obtained a polarization originating from magnetically aligned dust grains at the central region of our Galaxy of at most 1-2 kpc. The derived direction...
متن کاملRadial Distribution of X-ray Point Sources near the Galactic Center
We present the logN-logS and spatial distributions of X-ray point sources in seven Galactic Bulge (GB) fields within 4 from the Galactic Center (GC). We compare the properties of 1159 X-ray point sources discovered in our deep (100 ks) Chandra observations of three low extinction Window fields near the GC with the X-ray sources in the other GB fields centered around Sgr B2, Sgr C, the Arches Cl...
متن کاملOn the Chandra X-ray Sources in the Galactic Center
Recent deep Chandra surveys of the Galactic center region have revealed the existence of a faint, hard X-ray source population. While the nature of this population is unknown, it is likely that several types of stellar objects contribute. For sources involving binary systems, accreting white dwarfs and accreting neutron stars with main sequence companions have been proposed. Among the accreting...
متن کاملPhotometry of the Arches Cluster near the Galactic Center
We present Near-IR photometry of the Arches cluster, a young and massive stellar cluster near the Galactic center. We have analyzed the high resolution (FWHM ∼ 0.2) H and K ′ band images in the Galactic Center Demonstration Science Data Set, which were obtained with the Gemini/Hokupa’s adaptive optics (AO) system. We present the color-magnitude diagram, the luminosity function and the initial m...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1981
ISSN: 0004-637X,1538-4357
DOI: 10.1086/183534