A Ring of X-rays from the Cartwheel Galaxy
نویسندگان
چکیده
منابع مشابه
Intermediate-mass black holes and ultraluminous X-ray sources in the Cartwheel ring galaxy
Chandra and XMM−Newton observations of the Cartwheel galaxy show∼ 17 bright X-ray sources ( > ∼ 5× 10 38 erg s), all within the gas-rich outer ring. We explore the hypothesis that these X-ray sources are powered by intermediate-mass black holes (IMBHs) accreting gas or undergoing mass transfer from a stellar companion. To this purpose, we run N -body/SPH simulations of the galaxy interaction wh...
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We report the Chandra/ACIS-S detection of more than 20 ultraluminous X-ray sources (ULXs, L0.5−10keV > ∼3 × 10 ergs s) in the Cartwheel collisional ring galaxy system, of which over a dozen are located in the outer active star-forming ring. A remarkable hyperluminous X-ray source (HLX, L0.5−10keV > ∼10 ergs s assuming isotropic radiation), which dominates the X-ray emission from the Cartwheel r...
متن کاملVariability of ultraluminous X-ray sources in the Cartwheel Ring
The Cartwheel is one of the most outstanding examples of a dynamically perturbed galaxy where star formation is occurring inside the ring–like structure. In previous studies with Chandra, we detected 16 Ultra Luminous X-ray sources lying along the southern portion of the ring. Their Luminosity Function is consistent with them being in the high luminosity tail of the High Mass X-ray Binaries dis...
متن کاملA thorough study of the intriguing X - ray emission from the Cartwheel ring
the date of receipt and acceptance should be inserted later Abstract. We present the results from the high resolution Chandra observation of the Cartwheel galaxy. Many individual sources are resolved in the image, mostly associated with the outer ring. All detected sources have a very high X-ray luminosity (≥ 10 39 erg s −1) that classifies them as Ultra Luminous X-ray sources (ULX). The bright...
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chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1997
ISSN: 0252-9211
DOI: 10.1017/s0252921100071591