FLARING X-RAY EMISSION FROM HST-1, A KNOT IN THE M87 JET

D. E. HARRIS; J. A. BIRETTA; W. JUNOR; E. S. PERLMAN; W. B. SPARKS; A. S. WILSON

首页> 外文期刊>The Astrophysical journal >FLARING X-RAY EMISSION FROM HST-1, A KNOT IN THE M87 JET

【24h】

FLARING X-RAY EMISSION FROM HST-1, A KNOT IN THE M87 JET

机译：M87喷气机的一个结点HST-1的X射线发射

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We present Chandra X-ray monitoring of the M87 jet in 2002, which shows that the intensity of HST-1, an optical knot 0′′.8 from the core, increased by a factor of 2 in 116 days and a factor of 4 in 2 yr. There was also a significant flux decrease over 2 months, with suggestive evidence for a softening of the spectrum. From this variability behavior, we argue that the bulk of the X-ray emission of HST-1 comes from synchrotron emission. None of the other conceivable emission processes can match the range of observed characteristics. By estimating synchrotron model parameters for various bulk relativistic velocities, we demonstrate that a model with a Doppler factor δ in the range 2-5 fits our preliminary estimates of light-travel time and synchrotron loss timescales.

机译：我们在2002年对M87喷气机进行Chandra X射线监测，结果显示HST-1（从核心到光学结0''。8的强度）在116天内增加了2倍，而增加了4倍在2年内在2个月内通量也显着下降，并暗示了光谱的软化。根据这种可变性行为，我们认为HST-1的X射线发射大部分来自同步加速器发射。其他可能的排放过程均无法与观察到的特性范围相匹配。通过估算各种体相对论速度的同步加速器模型参数，我们证明了多普勒因子δ在2-5范围内的模型符合我们对光旅行时间和同步加速器损耗时标的初步估算。

著录项

来源
《The Astrophysical journal》 |2003年第2期|p.L41-L44|共4页
作者
D. E. HARRIS; J. A. BIRETTA; W. JUNOR; E. S. PERLMAN; W. B. SPARKS; A. S. WILSON;
展开▼
作者单位

Smithsonian Astrophysical Observatory, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类天文学;
关键词

相似文献

外文文献
中文文献
专利

1. FLARING X-RAY EMISSION FROM HST-1, A KNOT IN THE M87 JET [J] . D. E. HARRIS, J. A. BIRETTA, W. JUNOR, The Astrophysical journal . 2003,第1aPta2期

机译：M87喷气机的一个结点HST-1的X射线发射
2. VARIABILITY TIMESCALES IN THE M87 JET: SIGNATURES OF E 2 LOSSES, DISCOVERY OF A QUASI PERIOD IN HST-1, AND THE SITE OF TeV FLARING [J] . D. E. Harris, C. C. Cheung, ?ukasz Stawarz, The Astrophysical journal . 2009,第1期

机译：M87喷气飞机的变异性时间表：E 2损失的信号，HST-1中准周期的发现以及TeV Flaring的站点
3. A MAGNETOHYDRODYNAMIC MODEL OF THE M87 JET. I. SUPERLUMINAL KNOT EJECTIONS FROM HST-1 AS TRAILS OF QUAD RELATIVISTIC MHD SHOCKS [J] . Masanori Nakamura124, David Garofalo35, David L. Meier3 The Astrophysical journal . 2010,第2期

机译：M87射流的磁氢动力模型。 I. HST-1的超明节结作为四重相对MHD震荡的轨迹
4. Large solar flares of October - November, 2003 - development in Soft X-ray, Hard X-ray and gamma-ray emissions [C] . Sergey N. Kuznetsov, V. G. Kurt, I. N. Myagkova, International Astronomical Union . 2004

机译：2003年10月 - 11月的大型太阳耀斑 - 软X射线，硬X射线和伽马射线排放的开发
5. Characteristics of solar flare hard x-ray emissions: Observations and models. [D] . Liu, Wei. 2007

机译：太阳耀斑硬X射线发射的特征：观测值和模型。
6. X-ray Emission Spectroscopy as an In Situ Diagnostic Tool for X-ray Crystallography of Metalloproteins Using an X-ray Free Electron Laser [O] . Thomas Fransson, Ruchira Chatterjee, Franklin D. Fuller, -1

机译：X射线发射光谱作为使用X射线自由电子激光对金属蛋白进行X射线晶体学分析的原位诊断工具
7. Flaring X-ray Emission from HST-1, a Knot in the M87 Jet [O] . Harris D. E., Biretta J. A., Junor W., 2003

机译：来自HsT-1的爆炸X射线发射，m87射流中的结
8. The Large Scale X-Ray Emission from M87 [R] . Harris, D. E., Biretta, J. A., Junor, W. 1998

机译：m87的大规模X射线发射

FLARING X-RAY EMISSION FROM HST-1, A KNOT IN THE M87 JET

摘要

著录项

相似文献

相关主题

期刊订阅