...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Astrophysical Journal. Letters >Alma follows streaming of dense gas down to 40 pc from the supermassive black hole in NGC 1097
【24h】

Alma follows streaming of dense gas down to 40 pc from the supermassive black hole in NGC 1097

机译：Alma沿着NGC 1097的超大迹象黑洞沿着致密气体流向40级。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We present a kinematic analysis of the dense molecular gas in the central 200 pc of the nearby galaxy NGC 1097, based on Cycle 0 observations with the Atacama Large Millimeter/submillimeter Array (ALMA). We use the HCN(4-3) line to trace the densest interstellar molecular gas (cm~(-3)), and quantify its kinematics, and estimate an inflow rate for the molecular gas. We find a striking similarity between the ALMA kinematic data and the analytic spiral inflow model that we have previously constructed based on ionized gas velocity fields on larger scales. We are able to follow dense gas streaming down to 40 pc distance from the supermassive black hole in this Seyfert 1 galaxy. In order to fulfill marginal stability, we deduce that the dense gas is confined to a very thin disk, and we derive a dense gas inflow rate of 0.09 M yr~(-1) at 40 pc radius. Combined with previous values from the Hα and CO gas, we calculate a combined molecular and ionized gas inflow rate of ～0.2 M yr~(-1) at 40 pc distance from the central supermassive black hole of NGC 1097.
机译：我们在附近的Galaxy NGC 1097的中央200pc中的致密分子气体的运动分析，基于循环0与Atacama大毫米/亚颌骨阵列（ALMA）观察。我们使用HCN（4-3）线来追踪密度最浓的星际分子气体（CM〜（-3）），并量化其运动学，并估计分子气体的流入率。我们在ALMA运动学数据和我们之前基于更大尺度上的电离气体速度场构造的分析螺旋流入模型之间的醒目相似性。我们能够在这款Seyfert 1 Galaxy中沿着偏向于40个PC距离的致密气体流至40距离。为了满足边缘稳定性，我们推断着致密气体限制在一个非常薄的盘上，我们在40个PC半径下导出0.09米Yr〜（-1）的致密气体流入速率。结合来自Hα和CO气体的先前值，我们在距NGC 1097的中央超大黑洞的40距离距离〜0.2米Yr〜（-1）的组合分子和电离气体流入速率。

著录项

  • 来源
  • 作者

    Fathi K.; Lundgren A.A.; Kohno K.; Pi?ol-Ferrer N.; Martín S.; Espada D.; Hatziminaoglou E.; Imanishi M.; Izumi T.; Krips M.; Matsushita S.; Meier D.S.; Nakai N.; Sheth K.; Turner J.; Van De Ven G.; Wiklind T.;

  • 作者单位

    Department of Astronomy Stockholm University AlbaNova Centre Stockholm 106 91 Sweden;

    Joint ALMA Observatory Alonso de Córdova 3107 Vitacura Santiago Chile;

    Institute of Astronomy University of Tokyo 2-21-1 Osawa Mitaka Tokyo 181-0015 Japan;

    Department of Astronomy Stockholm University AlbaNova Centre Stockholm 106 91 Sweden;

    ESO Alonso de Córdova 3107 Vitacura Santiago Chile;

    National Astronomical Observatory of Japan (NAOJ) 2-21-1 Osawa Mitaka Tokyo 181-8588 Japan;

    ESO Karl-Schwarzschild-Str. 2 D-85748 Garching bei München Germany;

    Subaru Telescope National Astronomical Observatory of Japan 650 North A'ohoku Place Hilo HI 96720 United States;

    Institute of Astronomy University of Tokyo 2-21-1 Osawa Mitaka Tokyo 181-0015 Japan;

    Institute for Radio-Astronomy at Millimeter Wavelengths Domaine University 300 Rue de la Piscine F-38406 Saint Martin d'Heres France;

    Academia Sinica Institute of Astronomy and Astrophysics P.O. Box 23-141 Taipei 10617 Taiwan;

    Subaru Telescope National Astronomical Observatory of Japan 650 North A'ohoku Place Hilo HI 96720 United States;

    Division of Physics Faculty of Pure and Applied Science University of Tsukuba Ibaraki 305-8571 Tsukuba Japan;

    National Radio Astronomy Observatory 520 Edgemont Road Charlottesville VA 22903 United States;

    Department of Physics and Astronomy UCLA Los Angeles CA 90095-1547 United States;

    Max Planck Institute for Astronomy K?nigstuhl 17 D-69117 Heidelberg Germany;

    Joint ALMA Observatory Alonso de Córdova 3107 Vitacura Santiago Chile;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 天体力学（理论天文学）;
  • 关键词

    galaxies: active; galaxies: individual (NGC 1097); galaxies: kinematics and dynamics;

    机译：星系：活跃;星系：个人（NGC 1097）;星系：运动学和动态;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号