منابع مشابه
The North Ecliptic Pole Wide survey of AKARI: a near- and mid-infrared source catalog⋆
We present a photometric catalog of infrared (IR) sources based on the North Ecliptic Pole Wide field (NEP-Wide) survey of AKARI, which is an infrared space telescope launched by Japan. The NEP-Wide survey covered 5.4 deg2 area, a nearly circular shape centered on the NEP, using nine photometric filter-bands from 2−25 μm of the Infrared Camera (IRC). Extensive efforts were made to reduce possib...
متن کاملInfrared Excess around
We present ISOCAM 7 µm and 15 µm observations of 12 nearby white dwarfs, 6 of which have been found to have metals such as Ca, Mg and Fe in their pho-tospheres. Our purpose was to search for an excess of infrared emission above the stellar photospheres. We find that none of the white dwarfs other than G29−38 shows a detectable infrared excess and this places strong constraints on the existence ...
متن کاملTycho 2 stars with infrared excess in the MSX Point Source Catalogue
Stars of all evolutionary phases have been found to have excess infrared emission due to the presence of circumstellar material. To identify such stars, we have positionally correlated the infrared MSX point source catalogue and the Tycho 2 optical catalogue. A near/mid infrared colour criteria has been developed to select infrared excess stars. The search yielded 1938 excess stars, over half (...
متن کاملA ROSAT Bright Source Catalog Survey with the Swift Satellite
We consider the prospects for a complete survey of the 18,811 sources of the ROSAT All-Sky Survey Bright Source Catalog (BSC) with NASA’s Swift gamma-ray burst (GRB) mission. By observing each BSC source for 500 s with the satellite’s imaging X-ray and UV/optical telescopes, this “Swift Bright (Source) Catalog Survey” (Swift-BCS) would derive <5 source positions for all BSC sources that have no...
متن کاملOptical/Near-Infrared Imaging of Infrared-Excess Palomar-Green QSOs
Ground-based high spatial-resolution (FWHM < 0.3–0.8) optical and nearinfrared imaging (0.4—2.2 μm) is presented for a complete sample of optically selected Palomar-Green QSOs with far-infrared excesses at least as great as those of “warm” AGN-like ultraluminous infrared galaxies (Lir/Lbig−blue−bump > 0.46). In all cases, the host galaxies of the QSOs were detected and most have discernable two...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2013
ISSN: 0067-0049,1538-4365
DOI: 10.1088/0067-0049/209/2/31