一个新的星系团--朱雀星系团J1759-3450

银河系中心微类星体1 E 1740.7-2942的朱雀观测

Suzaku Observations of the Galactic Center Microquasar 1E 1740.7-2942

我们提出了两个朱雀观测银河系中心微类星体1 E 1740.7-2942，相隔约700天。在过渡到光谱硬态后，在这两种情况下都观察到了源。从1 E 1740.7-2942的显著发射被检测到300 keV的能量，在数据中没有明显的光谱中断或转换。我们尝试性地测量到~ 380 keV的截止能量的下限。在这两种情况下，发现光谱与康普顿化日冕一致，其中高能量发射与硬幂律（Γ~ 1.8）一致，在软X射线能量下，温度为~ 0.4 keV的吸积盘有显著贡献。吸积盘内径的测量值与在低硬态下吸积盘在大半径处被截断的图象不一致，而是倾向于接近ISCO（R_in ~ 10 - 20 R_g）的半径。

喷出物主导的银河系超新星遗迹G346 .6-0.2的朱雀观测

Suzaku Observations of Ejecta-Dominated Galactic Supernova Remnant G346.6-0.2

本文介绍用{ \it朱雀}对银河系超新星遗迹G346.6-0.2的X射线分析结果。首次清晰地探测到Mg、Si、S、Ca和Fe的K壳层发射线。Si和S的强发射线表明G346.6-0.2的X射线发射性质是以喷射为主的。喷射物主导的辐射与非平衡电离热等离子体和非热成分组成的组合模型拟合良好，可以将其视为光子指数为$Γ$ $\sim 0.6$的同步辐射。$N_{\rm H}\sim2.1\times10^{22}$ ${\rm cm^{-2}}$的吸收柱密度是从最佳拟合获得的，这意味着高密度介质，高电子温度的$kT_{\rm e}\sim1.2$ keV，和电离时间尺度的$n_{\rm e}t\sim2.9\times10^{11}$ ${\rm cm^{-3}s}$，表明该残余物可能远离完全电离平衡。喷出物的相对丰度表明，残骸来自Ia型超新星爆炸。

用朱雀观测的中年银河系超新星遗迹G296 .1-0.5中的喷出物探测

Ejecta detection in the middle-aged Galactic supernova remnant G296.1-0.5 observed with Suzaku

本文报道了利用朱雀星上的X射线成像光谱仪对银河系中龄超新星遗迹G296.1-0.5中的喷出物进行探测的结果。三个瓣，北，东南和西南和瓣间区域的光谱，包括软（0.3-2.0 keV）的非平衡电离等离子体的起源。在北部、东南部和叶间地区，热辐射可用单分量模型表示，在西南部地区可用双分量非平衡电离（VNEI）模型表示。研究区的光谱有N、O、Ne、Mg和Si元素谱线。在这项工作中首次显示了从这个残基的硅发射。得到的Ne，Mg和Si元素的丰度增强显示在所有区域的喷出物的贡献。假设该残骸为Sedov相，在d=3 kpc的距离下，我们得到了环境密度n 0 ~ 0.45cm-3，年龄t ~ 2.8 × 104 yr，激波速度Vs ~ 320 km/s，激波温度Ts ~ 1.2 × 106 K，上扫质量Msw ~ 340 M。

用朱雀卫星观测银河系中心区Fe K α线的全球分布

Global Distribution of Fe K alpha Lines in the Galactic Center Region Observed with the Suzaku Satellite

利用朱雀卫星测量了银河系中心扩散X射线（GCDX）中Fe K $α$线的空间分布，包括从GCDX到银河系脊X射线发射（GRXE）的过渡区。我们将Fe K $α$线分解为Fe \emissiontype{I}、Fe \emissiontype{XXV}和Fe \emissiontype{XXVI} K $α$三条线，得到了它们的空间强度分布，其分辨率为$\sim \timeform{0D.1}$。我们比较了Fe \emissiontype{XXV} K $α$配置文件与恒星质量分布（SMD）模型从近红外观测。在GRXE区，Fe \emissiontype{XXV} K $α$的强度分布与SMD模型拟合较好，而在GCDX区，$3.8\pm0.3$ $(\timeform{0D.2}<|l|<\timeform{1D.5})$或$19\pm6$ $(|l|<\timeform{0D.2})$比最佳拟合SMD模型高出一倍.因此，GCDX中的Fe \emissiontype{XXV} K $α$很难用GRXE的相同起源来解释。在点源起源的情况下，需要具有极强的Fe \emissiontype{XXV} K $α$线的新总体。另一种可能性是，大多数的GCDX是真正的扩散光学薄的热等离子体。

Swift/Bat活动星系核的朱雀视图。IV。两个窄线射电星系（3C 403和IC 5063）的性质

Suzaku View of the Swift/Bat Active Galactic Nuclei. IV. Nature of Two Narrow-Line Radio Galaxies (3C 403 and IC 5063)

本文报道了朱雀星对两个窄线射电星系3C 403和IC 5063的宽波段X射线观测结果。结合58个月的Swift/BAT谱平均值，我们能够精确地将它们的光谱特性限制在0.5- 200 keV波段。两个原子核的光谱都可以用吸收截止幂律、来自冷物质的吸收反射分量（具有铁K发射线）和未吸收的软分量（这给出了散射发射的严格上限）来很好地表示。在两个目标中，归一化到平均BAT通量的反射强度为R = Ω/2π~ 0.6，这意味着它们的环面具有足够大的立体角以产生再处理的发射。一个数值环面模型与~ 50度的开角以及再现所观察到的光谱。我们讨论的可能性，负责汤姆逊散射的正常气体的量是系统较小的射电星系相比，塞弗特星系。

{\it朱雀}对银河系超新星遗迹CTB 37 A（G348.5 + 0.1）的观测

{\it Suzaku} observation of Galactic supernova remnant CTB 37A (G348.5+0.1)

我们在这里介绍的CTB 37 A的观测结果获得的X射线成像光谱仪上的{PDMATHAMM朱雀}卫星。CTB 37 A的X射线光谱由两个分量很好地拟合，一个是具有太阳丰度的单温电离平衡分量（VMEKAL），电子温度为$kT_{\rm e}\sim0.6$ keV，吸收柱密度为$N_{\rm H}\sim3\times10^{22}$ ${\rm cm^{-2}}$，另一个是具有光子指数为$Γ$ $\sim 1.6$的幂律分量。CTB 37A的X射线光谱的特征在于清楚地检测到Mg、Si、S和Ar的K壳层发射线。具有太阳丰度的等离子体支持X射线发射来自受冲击的星际物质的想法。环境气体密度和残留物的年龄估计分别为$\sim1f^{-1/2}$ ${\rm cm^{-3}}$和$\sim3\times10^{4}f^{1/2}$ yr。由壳状射电结构包围的中心填充的X射线发射和其他X射线性质表明，该遗迹可能是混合形态超新星遗迹类的新成员。

朱雀星观测的重元素沿银道面K壳层线分布

The K-shell Line Distribution of Heavy Elements along the Galactic Plane Observed with Suzaku

本文报道了S、Ar、Ca和Fe的类He和类H离子的K壳层线强度沿银道面的全球分布。从轮廓，我们清楚地分离银河系中心的X射线发射（GCXE）和银河系的山脊的X射线发射（GRXE）。S、Ar、Ca和Fe的类He K $α$线沿银道面的强度分布近似相似，而类H Ly $α$线沿银道面的强度分布不相似。特别是，H-类赖氨酸$α$的S和Fe的配置文件显示出显着的对比度，大量过量的Fe和几乎没有过量的S线相比，GRXE中的GCXE。虽然显著的K壳层线由$\sim$ 1 keV和$\sim$ 7 keV温度等离子体表示，但这两个温度在GCXE和GRXE之间是不相等的。实际上，GCXE和GRXE的光谱分析表明，$\sim$ 1 keV等离子体在GCXE中的温度低于GRXE，而$\sim$ 7 keV等离子体在GCXE中的温度低于GRXE。

高银河系中7个非关联Fermi-LAT Gamma-ray源的朱雀X射线跟踪观测

Suzaku X-ray Follow-up Observations of Seven Unassociated Fermi-LAT Gamma-ray Sources at High Galactic Latitudes

我们报告了我们第二年利用朱雀X射线观测站上的X射线成像光谱仪在银河系高纬度（|b| >10度）对不明费米-LAT γ射线源进行的X射线跟踪观测。在该项目的第二年，从第一个费米-LAT目录中选择了七个新目标，并使用20-40 ks的有效朱雀曝光进行了研究。在1FGL J2302.8+4443的95%置信误差圆内，我们探测到了一个与最近发现的毫秒脉冲星PSR J2302+4442位置一致的X射线点源。探测到的对应物的X射线光谱与kT ~0.3 keV的黑体模型很好地拟合，与观测到的来自旋转磁化中子星表面的X射线光子的起源一致。其他四个目标最近也被确认为普通脉冲星（1FGL J0106.7+4853）和毫秒级示波器（1FGL J1312.6+0048、J1902.0-5110和J2043.2+1709），在~10^{-14} erg cm^{-2} s^{-1}的通量水平下，仅获得了0.5-10 keV波段的上限。在1FGL J1739.4+8717区域发现了一个弱的X射线源，但它与可变的γ射线发射源的关联不能单独用可用的朱雀数据来证实。对于剩余的费米-LAT物体1FGL J1743.8-7620，在LAT 95%误差椭圆内没有检测到X射线源。我们通过将观测到的高银河纬度费米LAT天体的多波长特性与已知耀变体和毫秒脉冲星的多波长特性进行比较，简要讨论了它们的一般特性。

Suzaku Observation of the Fermi Cygnus Cocoon: Search for a Signature of Young Cosmic-Ray Electrons

The origin of Galactic cosmic rays remains unconfirmed, but promising candidates for their sources are found in star-forming regions. We report a series of X-ray observations, with Suzaku, toward the nearby star-forming region of Cygnus X. They aim at comparing diffuse X-ray emissions on and off the $γ$-ray cocoon of hard cosmic rays revealed by Fermi LAT. After excluding point sources and small-scale structures and subtracting the non-X-ray and cosmic X-ray backgrounds, the 2--10~keV X-ray intensity distribution is found to monotonically decrease with increasing Galactic latitude. This indica…

Study of Swift/BAT Selected Low-luminosity Active Galactic Nuclei Observed with Suzaku

We systematically analyze the broadband (0.5--200 keV) X-ray spectra of hard X-ray ($>10$ keV) selected local low-luminosity active galactic nuclei (LLAGNs) observed with {\it Suzaku} and {\it Swift}/BAT. The sample consists of ten LLAGNs detected with {\it Swift}/BAT with intrinsic 14--195 keV luminosities smaller than $10^{42}$ erg s$^{-1}$ available in the {\it Suzaku} archive, covering a wide range of the Eddington ratio from $10^{-5}$ to $10^{-2}$. The overall spectra can be reproduced with an absorbed cut-off power law, often accompanied by reflection components from distant cold matter,…

Long Term X-Ray Spectral Variation of the Wolf-Rayet Binary WR 102-1 in the Galactic bulge: evidence for wind distortion in the binary

WR~102-1 was detected by Suzaku as a conspicuous point source in the 6.7 keV intensity map of the central region of the Milky Way. The source was suggested as a possible Wolf-Rayet binary based on its X-ray and infrared spectral characteristics. The iron line emission is expected to originate in the Wolf-Rayet star's dynamic stellar-wind when colliding the companion's mild stellar wind. Here, we report the result of a long-term X-ray monitoring of WR~102-1 since 1998 using archival data of ASCA, XMM-Newton, Chandra, Suzaku, and Swift to reveal variations of the iron K-emission line and the cir…

重新审视银河系SNR W 49 B的Suzaku光谱：未探测到铁K壳层电荷交换发射及改进的铁族元素抛射物质量比

Revisiting the Suzaku spectrum of the Galactic SNR W 49 B: non-detection of iron K-shell charge exchange emission and refined ejecta mass ratios of iron-group elements

本文重新审视W 49 B的Suzaku光谱，考虑系统不确定性后发现先前报告的电荷交换发射实为光谱代码缺失的高壳层双电子复合卫星线，并改进了Fe族抛射物质量比，使其更符合核合成模型预期。

Exploring the potential X-ray counterpart of the puzzling TeV gamma-ray source HESS J1507-622 with new Suzaku observations

The unidentified VHE (E>100 GeV) gamma-ray source HESS J1507-622 seems to not fit into standard models for sources related to young supernova remnants, pulsar wind nebulae, or young stellar populations in general. This is due to its intrinsically extended, but yet compact morphology, coupled with a relative large offset (~3.5 deg) from the Galactic plane. Therefore, it has been suggested that this object may be the first representative of a new distinct class of extended off-plane gamma-ray sources. The distance to HESS J1507-622 is the key parameter to constrain the source's most important pr…

Suzaku Observations of Moderately Obscured (Compton-thin) Active Galactic Nuclei Selected by Swift/BAT Hard X-ray Survey

We report the results obtained by a systematic, broadband (0.5--150 keV) X-ray spectral analysis of moderately obscured (Compton-thin; $22 \leq \log N_{\rm H} < 24$) active galactic nuclei (AGNs) observed with Suzaku and Swift/Burst Alert Telescope (BAT). Our sample consists of 45 local AGNs at $z<0.1$ with $\log L_{\rm 14-195\1mmkeV} > 42$ detected in the Swift/BAT 70-month survey, whose Suzaku archival data are available as of 2015 December. All spectra are uniformly fit with a baseline model composed of an absorbed cutoff power-law component, reflected emission accompanied by a narrow fluor…

Discovery of X-ray Emission from the Galactic Supernova Remnant G32.8-0.1 with Suzaku

We present the first dedicated X-ray study of the supernova remnant (SNR) G32.8-0.1 (Kes 78) with Suzaku. X-ray emission from the whole SNR shell has been detected for the first time. The X-ray morphology is well correlated with the emission from the radio shell, while anti-correlated with the molecular cloud found in the SNR field. The X-ray spectrum shows not only conventional low-temperature (kT ~ 0.6 keV) thermal emission in a non-equilibrium ionization state, but also a very high temperature (kT ~ 3.4 keV) component with a very low ionization timescale (~ 2.7e9 cm^{-3}s), or a hard non-th…

HESS J1507-622的朱雀观察

Suzaku Observation of HESS J1507-622

HESS J1507-622是一颗明亮的未确认TeV天体。HESS J1507-622是独一无二的，因为它的位置在银河系的盘面之外。我们用朱雀XIS观测了HESS J1507-622区域，虽然没有严重的星际灭绝，但没有发现明显的对应物。然而，有两个有趣的X射线物体; SRC 1是一个明亮的扩展源，SRC 2是一个暗淡的漫射物体。如果两者中的任何一个是对应的，TeV和X射线之间的通量比是大的，HESS J1507-622是一个真正的暗粒子加速器。

IGR J17445-2747 - yet another X-ray burster in the Galactic bulge

The discovery of a type I X-ray burst from the faint unidentified transient source IGR J17445-2747 in the Galactic bulge by the JEM-X telescope onboard the INTEGRAL observatory is reported. Type I bursts are believed to be associated with thermonuclear explosions of accreted matter on the surface of a neutron star with a weak magnetic field in a low-mass X-ray binary. Thus, this observation allows the nature of this source to be established.

用朱雀卫星揭示不明高银河纬度费米/LAT Gamma-ray源的性质

Unraveling the Nature of Unidentified High Galactic Latitude Fermi/LAT Gamma-ray Sources with Suzaku

我们报告的结果深X射线跟踪观测的四个不明费米/LAT伽马射线源在银河系高纬度使用朱雀。在费米/LAT操作的前3个月，所研究的对象被检测到具有很高的意义，随后更好地定位在费米/LAT 1年目录（1FGL）。随后讨论了可能与恒星和活动星系的联系，我们的观测为这一辩论做出了重要贡献。特别是，在1FGL J1231.1-1410的95%置信误差圆内发现了X射线点源。X射线光谱与黑体的幂律拟合良好。这支持了最近声称的毫秒脉冲星（MSP）PSR J1231-1411的来源。关于1FGL J1311.7-3429，在LAT误差圆内发现了两个X射线源。即使X射线光谱和变异性的属性进行了访问，其性质和与伽马射线源的关系仍然不确定。我们在1FGL J1333.2+5056区域发现了几个弱X射线源，其中一个与CLASS J1333+5057相一致。我们认为可用的数据与这两个对象之间的关联是一致的。最后，我们在1FGL J2017.3+0603附近探测到了一个X射线源。该天体最近被认为与新发现的MSP PSR J2017+0603相关联，因为空间重合和伽马射线脉冲探测。我们只探测到了J2017+0603类的X射线对应物，而我们确定了脉冲星位置的X射线通量上限。总而言之，我们的研究表明，虽然有相当一部分未识别的高银河纬度伽马射线源与脉冲星和耀变体现象有关，但与其他类别的天体物理对象的关联仍然是有效的选择。

Application of X-Ray Clumpy Torus Model (XCLUMPY) to 10 Obscured Active Galactic Nuclei Observed with Suzaku and NuSTAR

We apply XCLUMPY, an X-ray spectral model from a clumpy torus in an active galactic nucleus (AGN), to the broadband X-ray spectra of 10 obscured AGNs observed with both Suzaku and NuSTAR. The infrared spectra of these AGNs were analyzed with the CLUMPY code. Since XCLUMPY adopts the same clump distribution as that in the CLUMPY, we can directly compare the torus parameters obtained from the X-ray spectra and those from the infrared ones. The torus angular widths determined from the infrared spectra ($σ_{\mathrm{IR}}$) are systematically larger than those from the X-ray data ($σ_{\mathrm{X}}$);…

Swift/BAT活动星系核的朱雀视图。V.两个射电强活动星系核（3C 206和PKS 0707-35）的环面结构

Suzaku View of the Swift/BAT Active Galactic Nuclei. V. Torus Structure of Two Luminous Radio-loud AGNs (3C 206 and PKS 0707-35)

We present the results from broad-band X-ray spectral analysis of 3C 206 and PKS 0707-35 with Suzaku and Swift/BAT, two of the most luminous unobscured and obscured radio-loud active galactic nuclei with hard X-ray luminosities of 10^{45.5} erg s^{-1} and 10^{44.9} erg s^{-1} (14--195 keV), respectively. Based on the radio core luminosity, we estimate that the X-ray spectrum of 3C 206 contains a significant (~ 60% in the 14--195 keV band) contribution from the jet, while it is negligible in PKS 0707-35. We can successfully model the spectra with the jet component (for 3C 206), the transmitted …

Suzaku Follow-up of Heavily Obscured Active Galactic Nuclei Detected in Swift/BAT Survey: NGC 1106, UGC 03752, and NGC 2788A

We present the broadband (0.5-100 keV) spectra of three heavily obscured Active Galactic Nuclei (AGNs), NGC 1106, UGC 03752, and NGC 2788A, observed with Suzaku and Swift/Burst Alert Telescope (BAT). The targets are selected from the Swift/BAT 70-month catalog on the basis of high hardness ratio between above and below 10 keV, and their X-ray spectra are reported here for the first time. We apply three models, a conventional model utilizing an analytic reflection code and two Monte-Carlo based torus models with a doughnut-like geometry (MYTorus) and with a nearly spherical geometry (Ikeda toru…

An Empirical Correlation of $T_{\rm max}$ - $M_{\rm WD}$ of Dwarf Novae and The Average White Dwarf Mass in Cataclysmic Variables in the Galactic Bulge

The mean white dwarf (WD) mass in the Galactic bulge cataclysmic variables (CVs) was measured by applying the the shock temperature-WD mass correlation of magnetic cataclysmic variables (mCVs) to the Galactic Bulge X-ray Emission (GBXE) spectra. However, the resulting mean WD mass is lower than that of the local CVs. This discrepancy could be explained by the dominating sources in the GBXE are non-mCVs instead of mCVs. In this work, we conduct an thorough investigation on the X-ray spectra of local DNe from \suzaku\ archives, and derive semi-empirical correlations between the shock temperature…

用Chandra、XMM和Suzaku观测到的两个快速变化的银河系X射线瞬变

Two Rapidly Variable Galactic X-ray Transients Observed with Chandra, XMM and Suzaku

我们在银河系中心附近的新的和存档的X射线数据中确定了两个中等亮度、快速变化的瞬变。这两个对象显示出强烈的，耀斑的时间尺度上的几十到几千秒的变化，N_H变化的证据，和硬光谱。XMMU J174445.5-295044在2-10 keV的通量为3*10^{-11}至<10^{-12}尔格/cm ^2/s，N_H等于或高于5* 10 ^22 cm^{-2}，由XMM、钱德拉和朱雀观测到。一个可能的2 MASS对应物，K_S=10.2，显示出晚型恒星的颜色。CXCRJ 174042.0 -280724可能是快速硬瞬态IGR J17407-2808的对应物。钱德拉观测发现F_X（2-10 keV）约为10^{-12}尔格/cm^{-2}/s，N_H变化很大（从2*10^22到>2*10^23 cm^{-2}）。对于K_S>13，没有2 MASS对应物可见。XMMU J174445.5-295044似乎是一颗新的共生星或共生X射线双星，而CXMMU J174042.0-280724则更为神秘，可能是一颗不寻常的低质量X射线双星。

用Swift和Suzaku揭示局部吸收的活动星系核

Uncovering Local Absorbed Active Galactic Nuclei with Swift and Suzaku

对被吸收的活动星系核及其性质的探测仍然是理解黑洞演化和激活过程中一个难以捉摸的重要问题。随着斯威夫特的爆发警报望远镜进行的非常硬的X射线调查-30年来的第一次全天调查-我们开始揭示被掩盖的活动星系核的特征。朱雀和雨燕之间的协同作用对于确定新探测到的严重模糊但明亮的硬X射线源的X射线特性至关重要。我们审查的X射线和光学光谱特性的模糊AGN在本地宇宙中，在雨燕调查中发现。我们讨论了吸收/未吸收源的相对分布，包括“隐藏”和康普顿厚AGN人口。在观测的结果中，我们发现被吸收的活动星系核比未被吸收的活动星系核的亮度要低。光学光谱显示，指示LINERs/H II星系/复合材料的发射线比的源是样品中最不发光的物体，而光学吸收和未吸收的塞弗特具有相同的光度分布。因此，最不亮的光源可能以不同于塞弗特星系的方式吸积。

朱雀观测'裸'活动星系核

Suzaku observations of 'bare' active galactic nuclei

我们提出了一个大样本的25个“裸”活动星系核的X射线光谱分析，源很少或没有复杂的内在吸收，观察朱雀。我们的工作重点是研究相对论盘反射的潜在贡献，并检查这种解释的内在光谱复杂性经常显示活动星系核的X射线带通的影响。在分析过程中，我们采取了独特的方法，试图同时进行整个样品的系统分析，以及每个单独的源的详细处理，并发现光盘反射具有所需的灵活性，成功地再现宽带频谱观察到的所有考虑的来源。在可能的情况下，我们使用反射的辐射来限制这个样本源的黑洞自旋。我们的分析表明，人们普遍倾向于快速旋转的黑洞，如果从表面上看，这与SMBH增长由长期有序的吸积主导的情景最为一致。然而，在汇编的样本中，可能存在对高自旋活动星系核的观测偏差，限制了我们在现阶段为一般人群得出强有力结论的能力。最后，与流行的看法相反，我们的分析还表明，射电强/射电静活动星系核之间的二分法不仅与黑洞旋转有关。

朱雀观测到的几种活动星系核稳定软X射线发射的性质

The Nature of the Stable Soft X-ray Emissions in Several Types of Active Galactic Nuclei Observed by Suzaku

为了限制在许多活动星系核中看到的软X射线过量现象的起源，Noda等人（2011年b）为Markarian 509开发的强度相关光谱分析被应用于具有相对较弱反射特征的五个代表性物体的宽带（0.5-45 keV）朱雀数据。它们是典型的裸核1型Seyfert Fairall 9、明亮而典型的1.5型Seyfert MCG-2-58-22、X射线最亮宽线射电星系之一的3C 382、典型的类Seyfert射电噪类星体4C+74.26和X射线最亮射电宁静类星体MR 2251 -178。在所有的软X射线谱中，能量低于3 keV的软X射线强度与能量在3-10 keV的软X射线强度密切相关，但存在显著的正偏移。当在更精细的能带中计算时，这些偏移在0.5-3 keV中定义稳定的软分量。在每个对象中，该组件成功地解释了幂律拟合以上的软过量。这些组件被解释在几个替代的方式，包括热康普顿化组件，这是独立的占主导地位的幂律排放。从多区康普顿化的角度讨论了这种解释，认为物理上最合理的，这是为黑洞双星天鹅座X-1提出的（Makishima et al. 2008）。

The Velocity-Dependent $J$-factor of the Milky Way Halo: Does What Happens in the Galactic Bulge Stay in the Galactic Bulge?

We consider the angular distribution of the photon signal which could arise from velocity-dependent dark matter annihilation within the Galactic bulge. We find that, for the case of Sommerfeld-enhanced annihilation, dark matter annihilation within the bulge is dominated by slow speed particles which never leave the bulge, allowing one to find a simple analytic relationship between the dark matter profile within the Galactic bulge and the angular distribution. On the other hand, for the case $p$- or $d$-wave annihilation, we find that the small fraction of high-speed particles which can leave t…

银河系中心区的朱雀硬X射线巡天

The Suzaku Hard X-ray Survey on the Galactic Center Region

银河系中心（GC）区的X射线在6- 9 keV波段中显示出许多铁和镍原子的K壳层线。在光谱中看到的强发射线是6.4 keV的中性铁K $α$、6.7 keV的类He铁K $α$、6.9 keV的类H铁Ly $α$和7.8 keV的类He铁K $β$。其中，6.4 keV发射线是非热现象的探针。我们在几个巨大的分子云中探测到了6.4keV的强辐射，其中一些是朱雀星新发现的。所有谱线都具有1-2 keV的大等效宽度和$2-10\times 10^{23}\{\rm H\ cm}^{-2}$吸收柱。通过比较1994年至2005年ASCA、Chandra、XMM-Newton和Suzaku获得的光谱图和光谱，我们发现了Sgr B2区6.4 keV弥散辐射的时间变化。在Sgr~A区还发现了中性氩、钙、铬和锰原子的K $α$线。我们证明了在X射线暗区探测到的6.4 keV辐射线相对于6.4 keV相关连续谱（幂律分量）的等效宽度为$\sim 800\ {\rm eV}$。这些特征很自然地可以用X射线反射星云的理论来解释，而不是低能宇宙射线电子的理论。另一方面，在射电弧的南端发现了一个6.4 keV的团簇，G~0.162 $-$ 0.217，它具有一条小的等效宽度为6.4 keV的$\sim200\ {\rm eV}$发射线。射电弧是一个相对论电子的位置。因此，可以想象G~0.162 $-$ 0…

XMM-Newton and Suzaku X-ray Shadowing Measurements of the Solar Wind Charge Exchange, Local Bubble, and Galactic Halo Emission

We present results from a sample of XMM-Newton and Suzaku observations of interstellar clouds that cast shadows in the soft X-ray background (SXRB) - the first uniform analysis of such a sample from these missions. By fitting to the on- and off-shadow spectra, we separated the foreground and Galactic halo components of the SXRB. We tested different foreground models - two solar wind charge exchange (SWCX) models and a Local Bubble (LB) model. We also examined different abundance tables. We found that Anders & Grevesse (1989) abundances, commonly used in previous SXRB studies, may result in ove…

用朱雀观测的14个场的软X射线漫发射能谱

Energy Spectra of the Soft X-ray Diffuse Emission in Fourteen Fields Observed with Suzaku

本文介绍了用朱雀观测到的十二个场的软漫射X射线发射，以及以前分析中的另外两个场。所有的星系都有65度< l < 295度的星系角，以避免来自非常明亮的漫射源的贡献，该漫射源从银河系中心延伸至少30度。朱雀星9个观测场的表面亮度在统计上与ROSAT全天巡天（RASS）值一致，在R45波段的差异上限为17 x 10^{-6} c s^{-1} amin^{-2}。Ovii和Oviii的强度彼此之间有很好的相关性，Ovii的发射在约2个光子s^{-1} cm^{-2 str^{-1}（LU）处显示出强度下限。高纬度的Oviii辐射与地面上方过量的Ovii辐射有密切的相关性，（Oviii强度）= 0.5 x [（Ovii强度）-2 LU]，这表明不同视线上的平均温度在约0.2 keV附近有一个狭窄的分布。我们认为Ovii的偏移强度来自太阳层太阳风的电荷交换，可能来自本地的热泡，而多余的Ovii（2-7 LU）是来自银河系更遥远的部分的发射。这个星系辐射的总辐射热光度估计为4 x 10^{39} erg s^{-1}，其特征温度可能与银河系的维里温度有关。

The Galactic bulge millisecond pulsars shining in X rays: A gamma-ray perspective

If the mysterious Fermi-LAT GeV gamma-ray excess is due to an unresolved population of millisecond pulsars (MSP) in the Galactic bulge, one expects this very same population to shine in X rays. For the first time, we address the question of what is the sensitivity of current X-ray telescopes to an MSP population in the Galactic bulge. To this end, we create a synthetic population of Galactic MSPs, building on an empirical connection between gamma- and X-ray MSP emission based on observed source properties. We compare our model with compact sources in the latest Chandra source catalog, applying…

Comparing the Galactic Bulge and Galactic Disk Millisecond Pulsars

The Galactic Center Excess (GCE) is an extended gamma-ray source in the central region of the Galaxy found in Fermi Large Area Telescope (Fermi-LAT) data. One of the leading explanations for the GCE is an unresolved population of millisecond pulsars (MSPs) in the Galactic bulge. Due to differing star formation histories it is expected that the MSPs in the Galactic bulge are older and therefore dimmer than those in the Galactic disk. Additionally, correlations between the spectral parameters of the MSPs and the spin-down rate of the corresponding neutron stars have been observed. This implies t…

银河系中心伽马射线过剩更倾向于银河核球而非暗物质

Galactic Bulge Preferred Over Dark Matter for the Galactic Center Gamma-Ray Excess

本文利用流体动力学建模定位星际气体，发现银河系中心伽马射线过剩在统计上更符合银河核球和核星团的非球对称恒星密度分布，从而认为该过剩源于恒星群体而非暗物质。

Suzaku and XMM-Newton Observations of the North Polar Spur: Charge Exchange or ISM Absorption?

By revisiting the Suzaku and XMM-Newton data of the North Polar Spur, we discovered that the spectra are inconsistent with the traditional model consisting of pure thermal emission and neutral absorption. The most prominent discrepancies are the enhanced O VII and Ne IX forbidden-to-resonance ratios, and a high O VIII Ly$β$ line relative to other Lyman series. A collisionally ionized absorption model can naturally explain both features, while a charge exchange component can only account for the former. By including the additional ionized absorption, the plasma in the North Polar Spur can be de…

通过VVV红团簇星对银河系核球形态的最大熵估计

Maximum Entropy Estimation of the Galactic Bulge Morphology via the VVV Red Clump

本文利用VVV巡天红团簇星数据，通过最大熵解卷积方法重建银河系核球三维密度分布，估计其质量、X成分占比和夹角，并改进Fermi-LAT伽马射线银河系中心超出的模板拟合。

银河系膨胀中的超致密X射线双星

Ultra-compact X-ray binaries in the Galactic Bulge

我们模拟了银河系膨胀区超致密X射线双星（UCXB）的数量和特征。主要目的是将结果与即将从银河系膨胀巡天（GBS）获得的数据进行比较，以了解形成情景，特别是核心坍缩超新星速率，共同包层演变和动力学相互作用，以及二元初始质量函数。我们使用二进制人口合成代码和详细的恒星演化轨迹，结合观测的11个已知的UCXB。我们预测有几百个微弱的UCXB，周期为20-40分钟，可以被GBS探测到。