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DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA
文献类型：期刊论文
| 作者 | Acero, F.1; Ackermann, M.2; Ajello, M.3; Albert, A.4,5; Baldini, L.4,5,6,7; Ballet, J.1; Barbiellini, G.8,9; Bastieri, D.10,11; Bellazzini, R.7; Bissaldi, E.12 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 223期号:2 |
| ISSN号 | 0067-0049 |
| 关键词 | gamma rays: diffuse background gamma rays: general gamma rays: ISM |
| 通讯作者 | Casandjian, JM ; Grenier, IA (reprint author), Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA,IRFU,CNRS, F-91191 Gif Sur Yvette, France. |
| 产权排序 | 第三十九完成单位 |
| 英文摘要 | Most of the celestial. rays detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope originate from the interstellar medium when energetic cosmic rays interact with interstellar nucleons and photons. Conventional point-source and extended-source studies rely on the modeling of this diffuse emission for accurate characterization. Here, we describe the development of the Galactic Interstellar Emission Model (GIEM), which is the standard adopted by the LAT Collaboration and is publicly available. This model is based on a linear combination of maps for interstellar gas column density in Galactocentric annuli and for the inverse-Compton emission produced in the Galaxy. In the GIEM, we also include large-scale structures like Loop. I and the Fermi bubbles. The measured gas emissivity spectra confirm that the cosmic-ray proton density decreases with Galactocentric distance beyond 5 kpc from the Galactic Center. The measurements also suggest a softening of the proton spectrum with Galactocentric distance. We observe that the Fermi bubbles have boundaries with a shape similar to a catenary at latitudes below 20 degrees and we observe an enhanced emission toward their base extending in the north and south Galactic directions and located within similar to 4 degrees of the Galactic Center. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY EMISSION ; COSMIC-RAY ; MOLECULAR CLOUDS ; MILKY-WAY ; RADIAL-DISTRIBUTION ; EGRET OBSERVATIONS ; HELIUM SPECTRA ; COLUMN DENSITY ; X-RAY ; PARTICLE-PRODUCTION |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.3847/0067-0049/223/2/26/meta# |
| 语种 | 英语 |
| WOS记录号 | WOS:000375304600008 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9587]  |
| 专题 | 云南天文台_高能天体物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA,IRFU,CNRS, F-91191 Gif Sur Yvette, France 2.Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany 3.Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA 4.Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA 5.Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA 6.Univ Pisa, I-56127 Pisa, Italy 7.Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy 8.Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy 9.Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy 10.Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy |
| 推荐引用方式 GB/T 7714 | Acero, F.,Ackermann, M.,Ajello, M.,et al. DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2016,223(2). |
| APA | Acero, F..,Ackermann, M..,Ajello, M..,Albert, A..,Baldini, L..,...&Zimmer, S..(2016).DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,223(2). |
| MLA | Acero, F.,et al."DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 223.2(2016). |
入库方式： OAI收割
来源：云南天文台
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