Z CMa的大尺度弹射——本体运动研究及其新发现

IF 3.2 Q2 ASTRONOMY & ASTROPHYSICS

Galaxies Pub Date : 2023-05-04 DOI:10.3390/galaxies11030064

T. Liimets, M. Kraus, L. Cidale, S. Karpov, A. Marston

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引用次数: 0

摘要

大犬Z星是一颗迷人的早期双星，它的主星是赫比格Be星，次星是猎户座FU星。这两颗恒星都表现出亚弧秒喷射状的喷射物。此外，原生岩不仅与大尺度的流出有关，而且与大尺度的射流有关。在这项研究中，我们进一步调查了大规模外流的性质，这是自35年前发现以来尚未研究过的。我们提出了适当的运动测量的个别特征的大规模流出，并确定其运动年龄。此外，根据我们新获得的深度图像，我们发现了额外的微弱弧形特征，这些特征可能与中央双星有关。

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Large-Scale Ejecta of Z CMa—Proper Motion Study and New Features Discovered

Z Canis Majoris is a fascinating early-type binary with a Herbig Be primary and a FU Orionis-type secondary. Both of the stars exhibit sub-arcsecond jet-like ejecta. In addition, the primary is associated with the extended jet as well as with the large-scale outflow. In this study, we investigate further the nature of the large-scale outflow, which has not been studied since its discovery almost three and a half decades ago. We present proper motion measurements of individual features of the large-scale outflow and determine their kinematical ages. Furthermore, with our newly acquired deep images, we have discovered additional faint arc-shaped features that can be associated with the central binary.

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来源期刊

Galaxies Physics and Astronomy-Astronomy and Astrophysics

CiteScore

4.90

自引率

12.00%

发文量

100

审稿时长

11 weeks

期刊介绍： Es una revista internacional de acceso abierto revisada por pares que proporciona un foro avanzado para estudios relacionados con astronomía, astrofísica y cosmología. Areas temáticas Astronomía Astrofísica Cosmología Astronomía observacional: radio, infrarrojo, óptico, rayos X, neutrino, etc. Ciencia planetaria Equipos y tecnologías de astronomía. Ingeniería Aeroespacial Análisis de datos astronómicos. Astroquímica y Astrobiología. Arqueoastronomía Historia de la astronomía y cosmología. Problemas filosóficos en cosmología.