Year: 2018
Type: article
Abstract: N103B is a Type Ia supernova remnant (SNR) in the Large Magellanic Cloud (LMC). We carried out new 12CO(J = 3–2) and 12CO(J = 1–0) observations using ASTE and ALMA. We have confirmed the existence of a giant molecular cloud at V LSR ∼ 245 km s−1 toward the southeast of the SNR using ASTE 12CO(J = 3–2) data at an angular resolution of ∼25″ (∼6 pc in the LMC). Using the ALMA 12CO(J = 1–0) data, we have spatially resolved CO clouds along the southeastern edge of the SNR with an angular resolution of ∼1.″8 (∼0.4 pc in the LMC). The molecular clouds show an expanding gas motion in the position–velocity diagram with an expansion velocity of ∼5 km s−1. The spatial extent of the expanding shell is roughly similar to that of the SNR. We also find tiny molecular clumps in the directions of optical nebula knots. We present a possible scenario that N103B exploded in the wind-bubble formed by the accretion winds from the progenitor system, and is now interacting with the dense gas wall. This is consistent with a single-degenerate scenario.
Source: The Astrophysical Journal
Authors: H. Sano, Y. Yamane, K. Tokuda, K. Fujii, K. Tsuge, T. Nagaya, S. Yoshiike, M. D. Filipović, R. Z. E. Alsaberi, L. Barnes, T. Onishi, A. Kawamura, T. Minamidani, N. Mizuno, H. Yamamoto, K. Tachihara, N. Maxted, F. Voisin, G. Rowell, H. Yamaguchi, Y. Fukui
Institutions: Nagoya University Institute for Advanced Research, Nagoya University, Osaka Prefecture University, National Astronomical Observatory of Japan, The University of Tokyo, Western Sydney University, National Institutes of Natural Sciences, The Graduate University for Advanced Studies, SOKENDAI, Nobeyama Radio Observatory, UNSW Sydney, The University of Adelaide, Institute of Space and Astronautical Science
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, National Radio Astronomy Observatory, Australian Government, Commonwealth Scientific and Industrial Research Organisation, Ministry of Education, Culture, Sports, Science and Technology, National Science Council, Korea Astronomy and Space Science Institute, National Astronomical Observatory of Japan, Japan Society for the Promotion of Science, National Institutes of Natural Sciences
OpenAlex ID: W2810005576