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normal galaxies
相关语句
  正常星系
     Radio Continuum Radiation and HI Radiation of Normal Galaxies
     正常星系的射电连续辐射及HI辐射
短句来源
     Using Neural Networks Based Template Matching Method to Obtain Redshifts of Normal Galaxies
     基于神经网络的模板匹配方法求正常星系红移
短句来源
     The core of the active galaxy is known as Active Galactic Nuclei (ab.AGN), which has bright and dense nuclei, with polarized non-heat continuous radiation in radio, optical and X-ray band. There exists strong atomic and ionic emission, with the ability to send out more energetic photons than normal galaxies.
     活动星系核(Active Galactic Nuclei,简称AGN),有明亮的致密核区,在射电、光学、X射线波段存在偏振的非热致连续辐射,存在强的原子和离子发射线,具有比正常星系更强的发射高能光子的能力。
短句来源
     The observations and study of radio continuum radiation and HI radiation of normal galaxies carried out by the main observatories in the world in recent years is described.
     本文综述了近年来世界上各大天文台站对正常星系的射电连续辐射和HI辐射的观测及研究。
短句来源
     A Novel Method for the Determination of Redshifts of Normal Galaxies by Non-Linear Dimensionality Reduction
     一种基于非线性降维求正常星系红移的新方法
短句来源
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  “normal galaxies”译为未确定词的双语例句
     An IRAS color-color diagram is given in the figure, in which the galaxies listed in the Sadler's and Ebneter's catalogs and identified as IRAS sources with confirmed fluxes 25, 60, and 100 m are plotted. All of E and EO galaxies without dust lanes are located in the region of normal galaxies, as pointed out by Rowan-Robinson et al. (1984).
     对于同时具有25,60和100μm确切流量的E和SO星系我们讨论了它们的双色图,结果发现,不具尘带的E和SO星系都处于Rowan-Robinson.
短句来源
  相似匹配句对
     Radio Continuum Radiation and HI Radiation of Normal Galaxies
     正常星系的射电连续辐射及HI辐射
短句来源
     Interacting Galaxies
     星系相互作用
短句来源
     On S-normal Subgroups
     关于S正规子群
短句来源
     Normal Mode
     简正模式
短句来源
     Using Neural Networks Based Template Matching Method to Obtain Redshifts of Normal Galaxies
     基于神经网络的模板匹配方法求正常星系红移
短句来源
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  normal galaxies
The distributions of the radial distances RSN/R25 for the type Ib/c and II supernovae in active galaxies are more concentrated toward the center than in normal galaxies.
      
The properties of the HII region population of this AGN galaxy do not differ significantly from the properties of the HII region population of the "normal" galaxies.
      
The relationships between Mpg and log D are given for galaxies with a UV excess and normal galaxies.
      
The data obtained for them are compared with those for normal galaxies.
      
Moreover galaxies withf12 >amp;gt;f25 do not exhibit the well-known relations that normal galaxies show between far-infrared parameters, for example, the negative correlation betweenf12/f25 andf60/f100.
      
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A review on relations between quasars and galaxies is presented here.Some of low-redshift quasars are close to galaxies with the same redshifts, mingling in the groups or clusters of galaxies. The distorted isophotes of associated galaxies suggest the presence of interactions. Perhaps nearby QSOs may be powered by interaction with a gas-rich companion. There is no reason as yet to suppose that more distant QSOs are of any essential difference. When space telescope comes to work, one will probably find some faint...

A review on relations between quasars and galaxies is presented here.Some of low-redshift quasars are close to galaxies with the same redshifts, mingling in the groups or clusters of galaxies. The distorted isophotes of associated galaxies suggest the presence of interactions. Perhaps nearby QSOs may be powered by interaction with a gas-rich companion. There is no reason as yet to suppose that more distant QSOs are of any essential difference. When space telescope comes to work, one will probably find some faint galaxies at higher redshifts associated with the QSOs with the same redshifts. This will support cosmological interpretation of the redshifts.In addition to the evidences for extended structure in a number of low-redshift QSOs, the finding by Boroson and Oke of an early-type absorption spectrum in the 3C48 nebulosity is consistent with the conventional view that quasar phenomena occur in galactic nuclei, although most quasars are so far away that there is little hope of detecting underlying galaxies which might be associated with them.There exists, as we know, a gap between Seyfert and normal galaxies. However, by comparing the properties of the activities of quasars, Seyfert galaxies and normal galaxies,a continuity of their behaviour is shown.

本文从类星体与星系成协、类星体是遥远的星系核以及类星体跟活动星系,正常星系形成一个活动程度的明显序列等方面,评述了类星体和星系的关系。这些关系是否意味着类星体和星系有演化上的联系,还有待从观测和理论上作进一步研究。

The observations and study of radio continuum radiation and HI radiation of normal galaxies carried out by the main observatories in the world in recent years is described. Some main results and statistical properties of radio observations of various galaxies, such as E galaxy, spiral galaxy and double galaxy, as well as galactical nuclei are introduced. The physical mechanism of some observational results is discussed preliminarily.

本文综述了近年来世界上各大天文台站对正常星系的射电连续辐射和HI辐射的观测及研究。引述各型星系(E星系、旋涡星系、星系对)及星系核的射电观测的主要结果及其统计性质,对其中一些结果的物理机制进行初步探讨。

The IRAS survey at 12, 25, 60 and 100 m gives us a possibility to study the infrared properties of the different kinds of galaxies systematically. A catalog was prepared by C. J. Lons-dale et al. (1985) in which the IRAS point sources identified as galaxies and quasars are listed. Generally speaking, the main processes of IR radiation in galaxies are the re-radiation of dust in the star forming regions and non-thermal power law radiation of activity in the nuclei. The dust content in the early types of the galaxies...

The IRAS survey at 12, 25, 60 and 100 m gives us a possibility to study the infrared properties of the different kinds of galaxies systematically. A catalog was prepared by C. J. Lons-dale et al. (1985) in which the IRAS point sources identified as galaxies and quasars are listed. Generally speaking, the main processes of IR radiation in galaxies are the re-radiation of dust in the star forming regions and non-thermal power law radiation of activity in the nuclei. The dust content in the early types of the galaxies is low, but attention has recently been drawn to a class of apparently elliptical galaxic-s which contain various quantities of dust, usually in a lane along an optical axis of the galaxies. Jura (1977) considered that the dust lanes are excellent potential sites for star formation. In this paper the infrared luminosities and F1R/FB are intercompared between the two samples of E and EO galaxies with and without dust lanes.E. Sadler (1984) published a complete sample of E and EO galaxies with B 14 mag. and DEC. -32. It contains 248 galaxies of which 38 are listed in the Lonsdale's Catalog with confirmed flux quantities in the 60 and 100 m bands.38 infrared galaxies are divided into two samples. The first consists of 6 galaxies with dust lanes, which are listed in The Catalog of Dusty Elliptical Galaxies compiled by K. Ebne-ter and B. Balick (1985). It is the latest list of dusty elliptical galaxies. The second sample consists of another 32 galaxies without dust lanes.The far infrared luminosities, LIR, of 38 galaxies have been calculated using the integrated far infrared (40-120) fluxes, FIR, given in Lonsdale's Catalog and radial velocities listed in Sadler's Catalogs (H = 75 km/s/Mpc). The quantity FB is determined by the formulalog FB=- 8.19-0.4Band the correction for interstellar extinction is performed with the method given in RC2 de Vaucouleur et al., (1976). The values of LIR and FIR/FB for the two samples are listed in the tables 1 and 2. The average log LIR for the two samples are 9.37 and 9.31 respectively. The average values of log FIR/FB are -0.15 and 0.05.The Mann-Whitney U-Test is used to check the distributions of log LIF and log FIR/FB for the two samples. The adopted null hypothesis is: the distributions of log LIF and log FIR/FB for the two samples are indistinguishable at the significant level =0.05. We found the associated probabilities for distributions of log LIR to be 0.32 and for log FIR/FB, 0.10. They are all larger than = 0.05. We can conclude from these tests that we can not refuse the null hypothesis, namely, the distributions of log LIR and FIR/FB for the two samples i.e., E and SO galaxies with and without dust lanes, could be considered as identical at the given sig- nificant level.An IRAS color-color diagram is given in the figure, in which the galaxies listed in the Sadler's and Ebneter's catalogs and identified as IRAS sources with confirmed fluxes 25, 60, and 100 m are plotted. All of E and EO galaxies without dust lanes are located in the region of normal galaxies, as pointed out by Rowan-Robinson et al. (1984). 3 out of 7 galaxies with dust lanes are located far from this region. They are NGC 1052, 7213, and IC 5063. NGC 1052 is a LINER and its IRAS properties have been discussed by Neugebauer et al. (1984). NGC 7213 is Seyfert 1 and IC 5063 is Seyfert 2 as listed in the Veron's catalog (1985).Finally it can be concluded: 1. There is no evidence that" the dust lanes in E and EO galaxies are strong infrared sources arising from star forming regions. 2. A few E and EO galaxies with dust lanes are shown to be sites where peculiar infrared radiation processes are going on: these are all active galaxies.

IRAS在12,25,60和100μm的巡天,给我们提供了研究各类星系红外辐射特性的可能。为了研究具有尘带的E和SO星系的红外辐射特性,我们利用了E.Sadler给出的完备的E和SO星系表。在该星系表中共列出248个夭体,其中38个被证记为IRAS点源,且又有确切的60和100μm的流量值。在这38个天体中有6个被列在K.Ebneter和B.Balik最新发表的具有全带的椭圆星系表中。我们以这6个星系作为具有尘带的E和SO星系的样本,其它32个没有尘带的E和SO星系即作为对照样本。为了讨论具有尘带的椭圆星系的红外辐射特性,我们利用非参数Mann-Whitney检验,对这两个样本的LIR和FIR/FB的分布作了讨论,结果是在对于置信度α=0.05的水平上,我们不能拒绝另一假设:这两个样本的LIR和FIR/FB的分布是相同的。对于同时具有25,60和100μm确切流量的E和SO星系我们讨论了它们的双色图,结果发现,不具尘带的E和SO星系都处于Rowan-Robinson.et al所指出的正常星系区,而一些具有尘和带的ESO星系,则远离这一区域,它们是LINER和SEYFERT星系。

 
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