Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Journal article
Title: Discovery of molecular and atomic clouds associated with the Magellanic superbubble 30 Doradus C
Author: Sano, H.
Yamane, Y.
Voisin, F.
Fujii, K.
Yoshiike, S.
Inaba, T.
Tsuge, K.
Babazaki, Y.
Mitsuishi, I.
Yang, R.
Aharonian, F.
Rowell, G.
Filipović, M.
Mizuno, N.
Tachihara, K.
Kawamura, A.
Onishi, T.
Fukui, Y.
Citation: The Astrophysical Journal: an international review of astronomy and astronomical physics, 2017; 843(1):61-1-61-7
Publisher: IOP Publishing; American Astronomical Society
Issue Date: 2017
ISSN: 0004-637X
Statement of
H. Sano, Y. Yamane, F. Voisin, K. Fujii, S. Yoshiike, T. Inaba, K. Tsuge, Y. Babazaki, I. Mitsuishi, R. Yang, F. Aharonian, G. Rowell, M.D. Filipović, N. Mizuno, K. Tachihara, A. Kawamura, T. Onishi, and Y. Fukui
Abstract: We analyzed the 2.6 mm CO and 21 cm H i lines toward the Magellanic superbubble 30 Doradus C, in order to reveal the associated molecular and atomic gas. We uncovered five molecular clouds in a velocity range from 251 to 276 km s⁻¹ toward the western shell. The non-thermal X-rays are clearly enhanced around the molecular clouds on a parsec scale, suggesting possible evidence for magnetic field amplification via shock–cloud interaction. The thermal X-rays are brighter in the eastern shell, where there are no dense molecular or atomic clouds, opposite to the western shell. The TeV γ-ray distribution may spatially match the total interstellar proton column density as well as the non-thermal X-rays. If the hadronic γ-ray is dominant, the total energy of the cosmic-ray protons is at least ∼1.2 × 10⁵⁰ erg with the estimated mean interstellar proton density ~60 cm⁻³. In addition, the γ-ray flux associated with the molecular cloud (e.g., MC3) could be detected and resolved by the Cherenkov Telescope Array (CTA). This should permit CTA to probe the diffusion of cosmic-rays into the associated dense ISM.
Keywords: cosmic rays; gamma rays: ISM; ISM: bubbles; ISM: clouds; X-rays: individual (30 Doradus C)
Rights: © 2017. The American Astronomical Society. All rights reserved.
DOI: 10.3847/1538-4357/aa73e0
Published version:
Appears in Collections:Aurora harvest 4
Physics publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.