Kinematic properties of the dual AGN system J0038+4128 based on long-slit spectroscopy

The study of kiloparsec-scale dual active galactic nuclei (AGN) will provide important clues to understand the co-evolution between the host galaxies and their central supermassive black holes undergoing a merging process. We present long-slit spectroscopy of the J0038$+$4128, a kiloparsec-scale dual AGN candidate discovered by Huang et al. recently, using the Yunnan Faint Object Spectrograph and Camera (YFOSC) mounted on Li-Jiang 2.4-m telescope at Yunnan observatories. From the long-slit spectra, we find that the average relative line-of-sight (LOS) velocity between the two nuclei (J0038$+$4128N and J0038$+$4128S) is about 150 km s$^{-1}$. The LOS velocities of the emission lines from the gas ionized by the nuclei activities and of the absorption lines from stars governed by the host galaxies for different regions of the J0038$+$4128 exhibit the same trend. The same velocities trend indicates that the gaseous disks are co-rotating with the stellar disks in this ongoing merge system. We also find several knots/giant HII regions scattered around the two nuclei with strong star formation revealed by the observed line ratios from the spectra. Those regions are also detected clearly in HST $F336W/U$-band and HST $F555W/V$-band images.Comment: 12 pages, 5 figures, 3 tables, Research in Astronomy and Astrophysics accepte

The Relationship Between Physical Exercise and Mobile Phone Addiction of College Students from Low Social Classes

Mobile phone addiction has become a common phenomenon among college students, which seriously affects their physical and mental health. In this process, individuals with a strong sense of loneliness tend to seek social support and belonging in the virtual network, which leads to the occurrence of mobile phone addiction. At the same time, studies have begun to explore ways to reduce mobile phone addiction by improving physical activity. The purpose of this study was to explore the impact of low-level college students\u27 physical exercise on mobile phone addiction, and focuses on the mediating mechanism of loneliness. The mobile phone addiction scale, the physical activity level scale, and the loneliness scale were selected as the subjects. SPSS 23.0 was used to perform descriptive statistics, correlation analysis, multiple regression analysis, and bootstrap mediation effect test on the data. There were significant differences in gender dimensions between physical exercise, mobile phone addiction, and loneliness of low-level college students. Correlation analysis shows that there is a significant negative correlation between physical exercise and mobile phone addiction (r = -0.14, P \u3c 0.01) and loneliness (r = -0.15, P \u3c 0.01). Loneliness and mobile phone addiction (r = 0.29, P \u3c 0.01) was significantly positively correlated. The test results of the mediating effect show that the 95% confidence interval of the indirect effect Bootstrap produced by loneliness does not contain a value of 0, indicating that loneliness has a significant mediating effect between the level of physical exercise and mobile phone addiction (standardized effect value = -0.58, Accounted for 29% of the total effect). The level of physical exercise of low-level college students is significantly negatively related to mobile phone addiction and loneliness, and loneliness is significantly positively related to mobile phone addiction. There is a mediating effect of loneliness between physical exercise and mobile phone addiction