从SMARTS(The Small and Moderate Aperture Research Telescope System)数据库,收集到了平谱射电类星体(FRSQ)0208-512天体光学波段B、V、R的观测数据,数据从2008年2月–2017年8月,时间跨度近10 yr.分别获得了光学B波段数据627组、V波...从SMARTS(The Small and Moderate Aperture Research Telescope System)数据库,收集到了平谱射电类星体(FRSQ)0208-512天体光学波段B、V、R的观测数据,数据从2008年2月–2017年8月,时间跨度近10 yr.分别获得了光学B波段数据627组、V波段数据634组、R波段数据639组.通过加权小波Z变换法(WWZ)和蒙特卡洛模拟的LombScargle periodogram(LSP)方法研究得出了如下结论:(1)在两种方法中都得到了光学B、V、R 3个波段有可能存在396 d左右约为1.08 yr的周期性光变;(2)得到了B波段星等B与光学波段色指数(B-V)呈正相关关系,当B星等越小时色指数(B-V)越小,即越亮越蓝;(3)通过光学3个波段的1.08 yr的长周期光变得到天体中心黑洞质量M约为0.12×10^(6)M⊙,辐射区半径RM=1.052×10^(8)km,其中M⊙为太阳质量.展开更多
The paper attempts to make a preliminary exploration on the analytic framework of multi-generic phenomenon. Three strata have been identified in a multi-generic analytical framework and basic analytic unit for each st...The paper attempts to make a preliminary exploration on the analytic framework of multi-generic phenomenon. Three strata have been identified in a multi-generic analytical framework and basic analytic unit for each stratum has been well-established. Textual structure is identified as the basic analytic unit for texts, generic structural potential for member genres and schematic structure for multi-generic integration. Each basic analytic unit is responsible for generating the corresponding concrete form of representation.展开更多
文摘从SMARTS(The Small and Moderate Aperture Research Telescope System)数据库,收集到了平谱射电类星体(FRSQ)0208-512天体光学波段B、V、R的观测数据,数据从2008年2月–2017年8月,时间跨度近10 yr.分别获得了光学B波段数据627组、V波段数据634组、R波段数据639组.通过加权小波Z变换法(WWZ)和蒙特卡洛模拟的LombScargle periodogram(LSP)方法研究得出了如下结论:(1)在两种方法中都得到了光学B、V、R 3个波段有可能存在396 d左右约为1.08 yr的周期性光变;(2)得到了B波段星等B与光学波段色指数(B-V)呈正相关关系,当B星等越小时色指数(B-V)越小,即越亮越蓝;(3)通过光学3个波段的1.08 yr的长周期光变得到天体中心黑洞质量M约为0.12×10^(6)M⊙,辐射区半径RM=1.052×10^(8)km,其中M⊙为太阳质量.
文摘The paper attempts to make a preliminary exploration on the analytic framework of multi-generic phenomenon. Three strata have been identified in a multi-generic analytical framework and basic analytic unit for each stratum has been well-established. Textual structure is identified as the basic analytic unit for texts, generic structural potential for member genres and schematic structure for multi-generic integration. Each basic analytic unit is responsible for generating the corresponding concrete form of representation.