In this paper, we explore the observable signatures of solitonic boson stars by employing ray-tracing simulations, with celestial spheres and thin accretion disks serving as illumination sources. By numerically fitting the metric form, we solve the geodesic equation for photons under the influence of the soliton potential, enabling us to simulate the optical appearance of the soliton boson star in two distinct regimes. In the weak coupling case (larger value of coupling parameter $α$) with an initial scalar field $ψ_0$, the images on the screen predominantly show direct and lensed images, where $ψ_0$ and $α$ modulate the image region size while the observation inclination $θ$ controls morphological asymmetry. In the case of strong coupling (small value of $α$), the images on the screen show a nested sub-annulus within the Einstein ring in the celestial model, whereas thin disk accretion models reveal higher-order lensing images indicative that photons are capable of orbiting the equatorial plane of the boson star multiple times. We also analyze how the effective potential and redshift factor depend on the correlation parameter. At low inclination($θ<30^{\circ})$, the redshift is the dominant effect, the image is characterized by a dim central cavity enclosed by a bright ring. At high inclination ($θ>60^{\circ})$, the Doppler effect becomes more pronounced, resulting in a substantial brightness disparity between the left and right sides of the optical image. These findings offer robust theoretical underpinnings for differentiating solitonic boson stars from black holes via high-resolution astronomical observations.
Polarization Images of Neutron Stars Illuminated by a Thin Accretion Disk: A Comparison with Black Holes
Sichuan Minzu College（四川民族学院）；China West Normal University（西华师范大学）；Chongqing Jiaotong University（重庆交通大学）；Chongqing Bashu Science City Secondary School（重庆巴蜀科学城中学）
Imprints of Dark Matter on the Shadow and Polarization Images of a Black Hole Illuminated by Various Thick Disks
University of Management and Technology（管理技术大学）；COMSATS University Islamabad, Lahore Campus（科摩萨茨伊斯兰堡大学拉合尔校区）；Chongqing Jiaotong University（重庆交通大学）；Chongqing Normal University（重庆师范大学）
Testing the "no-hair" property of black holes with X-ray observations of accretion disks
黑洞周围的吸积盘以热辐射的形式从黑洞的几个引力半径（$ r \lesssim 20 G M / c^{2}$）内辐射出吸积物质静止质量的很大一部分。此外，吸积物质也可以被来自周围等离子体的硬X射线照射，这将荧光跃迁线添加到发射中。这种辐射是由沿着度规中测地线运动的物质发射的，因此在发射中观察到的强多普勒和引力红移编码了关于黑洞周围强引力场的信息。本文通过计算薄吸积盘的跃迁谱和热辐射谱，探讨了用X射线辐射作为广义相对论强场检验的可能性。此外，还考虑了在其它引力理论中约束一些已知的黑洞时空的可能性。
Visual Characteristics of a Rotating Black Hole in $4$D Einstein-Gauss-Bonnet Gravity with Thin Accretion Disk Under EHT Constraints
University of Management and Technology（管理技术大学）；University of Okara（奥卡拉大学）；Chongqing Normal University（重庆师范大学）；Imam Mohammad Ibn Saud Islamic University (IMSIU)（伊玛目穆罕默德·本·沙特伊斯兰大学）
Geodesic dynamics and multi-inclination images of a non-minimally coupled black hole with a thin accretion disk
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University（扬州大学物理科学与技术学院引力与宇宙学中心）；School of Science, Jiangsu University of Science and Technology（江苏科技大学理学院）
Twinkle twinkle dark star: Oscillating profiles from dark matter scalar solitons
Universidade Federal do Pará（帕拉联邦大学）；Faculdade de Engenharia, Universidade do Porto（波尔图大学工程学院）；CENTRA, Departamento de Fésica, Instituto Superior Técnico-IST, Universidade de Lisboa-UL（里斯本大学高等理工学院物理系与理论物理与复杂系统研究中心）；Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid（马德里康普顿斯大学理论物理系与IPARCOS研究中心）；Institute of Physics, University of Tartu（塔尔图大学物理研究所）
Polarization images of non-topological soliton Bardeen boson stars
College of Physics and Optoelectronic Engineering, Chongqing Normal University（重庆师范大学物理与光电工程学院）；Department of Mechanics, Chongqing Jiaotong University（重庆交通大学力学系）；Center for Gravitational Wave Experiment, National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences（中国科学院力学研究所微重力国家实验室引力波实验中心）
