INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64
文献类型：期刊论文
| 作者 | Torres, DF; Zhang S(张澍) ; Zhang, S; Reimer, O; Barcons, X; Corral, A; Bosch-Ramon, V; Paredes, JM; Romero, GE; Qu, JL
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2006 |
| 卷号 | 457期号:1页码:#REF! |
| 关键词 | X-rays : general gamma rays : observations |
| 通讯作者 | Torres, DF (reprint author), CSIC, IEEC, Inst Ciencies Espai, Fac Ciencies, Campus UAB,Torre C5 Parell,2da Planta, Barcelona 08193, Spain. |
| 英文摘要 | Aims. We investigate the nature of the COMPTEL unidentified source GRO J1411-64. Methods. The source was observed by INTEGRAL. Its central part was also observed by XMM-Newton. Results. The data analysis shows no hint for new detections at hard X-rays. The upper limits in flux herein presented constrain the energy spectrum of whatever was producing GRO J1411-64, imposing, in the framework of earlier COMPTEL observations, the existence of a peak in power output located somewhere between 300-700 keV for the so-called low state. The Circinus Galaxy is the only source detected within the 4 sigma location error of GRO J1411-64, but can be safely excluded as the possible counterpart: the extrapolation of the energy spectrum is well below the one for GRO J1411-64 at MeV energies. 22 reliable and statistically significant sources (likelihood > 10) were extracted and analyzed from XMM-Newton data. Only one of these sources, XMMU J141255.6-635932, is spectrally compatible with GRO J1411-64 although the fact the soft X-ray observations do not cover the full extent of the COMPTEL source position uncertainty make an association hard to quantify and thus risky. Conclusions. The unique peak of the power output at high energies (hard X-rays and gamma-rays) resembles that found in the SED seen in blazars or microquasars, and might suggest that a similar scenario is at work. However, an analysis using a microquasar model consisting on a magnetized conical jet filled with relativistic electrons which radiate through synchrotron and inverse Compton scattering with star, disk, corona and synchrotron photons shows that it is hard to comply with all observational constrains. This fact and the non-detection at hard X-rays introduce an a-posteriori question mark upon the physical reality of this source, which is discussed in some detail. |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000240495300030 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227232]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | Torres, DF,Zhang S,Zhang, S,et al. INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64[J]. ASTRONOMY & ASTROPHYSICS,2006,457(1):#REF!. |
| APA | Torres, DF.,张澍.,Zhang, S.,Reimer, O.,Barcons, X.,...&屈进禄.(2006).INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64.ASTRONOMY & ASTROPHYSICS,457(1),#REF!. |
| MLA | Torres, DF,et al."INTEGRAL and XMM-Newton observations towards the unidentified MeV source GRO J1411-64".ASTRONOMY & ASTROPHYSICS 457.1(2006):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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