Submillimetre continuum observations of NGC 253
نویسندگان
چکیده
منابع مشابه
(Sub)mm continuum observations of NGC 6334A
We present 2 mm, 1.1 mm, 850 μm, 800 μm, and 450 μm mapping and photometry of the field surrounding NGC 6334A. We find a prominent east–west dust ridge, approximately centered on NGC 6334A. We interpret this ridge as a collimating dust disk or torus and derive a mass of ∼60 M from our continuum data. It is possible though, that this disk– like structure is contaminated on the west-side by a pro...
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Chandra observations of the core of the nearby starburst galaxy NGC 253 reveal a heavily absorbed source of hard X-rays embedded within the nuclear starburst region. The source has an unabsorbed, 2 to 10 keV luminosity of ≥ 10 erg s and photoionizes the surrounding gas. We observe this source through a dusty torus with a neutral absorbing column density of NH ∼ 2 × 10 23 cm. The torus is hundre...
متن کاملThe Nuclear Starburst in Ngc 253
We have obtained long-slit spectra of NGC 253 in the J, H, K, and N bands, broadband images in the J, H, and K s bands, narrowband images centered at the wavelengths of Brγ and H 2 (1,0)S(1), and imaging spectroscopy centered on [Ne II](12.8µm). We have subtracted a composite stellar spectrum from the galaxy spectrum to measure faint emission lines which otherwise would be buried in the complic...
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Submillimetre maps of NGC 891 have been obtained with the PRONAOS balloonborne telescope and with the ISOPHOT instrument on board the ISO satellite. In this article, we also gather data from IRAS and SCUBA to present the complete submillimetre spectrum of this nearby edge-on spiral galaxy. We derive submillimetre emission profiles along the major axis. The modified blackbody fits, assuming a si...
متن کاملX - ray observations of the starburst galaxy NGC 253 : I . Point
Abstract. We report the results of a deep spatial, spectral, and timing analysis of ROSAT HRI and PSPC observations of the edge-on starburst galaxy NGC 253. In this first paper, point-like X-ray sources detected within the galaxy and in the field are discussed. The sources are characterized by their X-ray properties (including comparisons with results from the Einstein and ASCA satellites), by ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1986
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/219.1.19p