標題: Titlebook: Extragalactic Radio Sources; David S. Heeschen,Campbell M. Wade Book 1982 International Astronomical Union 1982 BL Lac object.Galaxy.Quasa [打印本頁] 作者: 生動 時間: 2025-3-21 19:35
書目名稱Extragalactic Radio Sources影響因子(影響力)
書目名稱Extragalactic Radio Sources影響因子(影響力)學科排名
書目名稱Extragalactic Radio Sources網絡公開度
書目名稱Extragalactic Radio Sources網絡公開度學科排名
書目名稱Extragalactic Radio Sources被引頻次
書目名稱Extragalactic Radio Sources被引頻次學科排名
書目名稱Extragalactic Radio Sources年度引用
書目名稱Extragalactic Radio Sources年度引用學科排名
書目名稱Extragalactic Radio Sources讀者反饋
書目名稱Extragalactic Radio Sources讀者反饋學科排名
作者: 親屬 時間: 2025-3-21 22:44
Evolutionary Tracks of Extended Radio Sources,ution of sources in the radio luminosity, P, overall physical size, D, diagram. This is the radioastronomer’s H-R diagram, an analogy which two lines of algebra shows is exact. Fig. 1 is the P-D diagram for the 3CR 166 source sample of Jenkins et al. (1977) with later additions. Most of the sources 作者: 把…比做 時間: 2025-3-22 01:00
Rotating Gas and the Shapes of Radio Sources,r-scale properties of the galaxy in which it lives. Very large sources are found in elliptical rather than spiral galaxies, and big galaxies have stronger radio sources than small ones. The narrow jets mapped in weaker radio galaxies do not expand with a constant opening angle, but become better foc作者: 蜈蚣 時間: 2025-3-22 06:11 作者: Ligament 時間: 2025-3-22 11:58 作者: START 時間: 2025-3-22 13:36
A Possible Evolutionary Feature in the Spectra of Radio Galaxies,x and redshift in the sense that the spectra of identified radio galaxies steepen with increasing redshift; this behaviour is consistent with an effect first reported by Kellermann et al. (1969) that the average spectral index of identified radio galaxies is lower than that of sources in empty optic作者: START 時間: 2025-3-22 18:57 作者: 充氣女 時間: 2025-3-23 01:13 作者: 瑣事 時間: 2025-3-23 01:40 作者: bizarre 時間: 2025-3-23 09:14
,Nuclear Ejection — One Side at a Time,n. The most likely explanation for the observed asymmetries is that ejection from the active nucleus occurs in only one direction at a time. This direction then switches back and forth to form the large scale double structures. Implications of this picture for the nuclear engine and the radio source作者: 流行 時間: 2025-3-23 12:25
Time Dependent Energy Supply in Radio Sources and Morphology of Radio Lobes,d in detail (1) that the energy supply by the nuclear engine to the lobes is strongly time-dependent. Time dependent ejection from the nucleus of a parent galaxy produces low density channels which are ploughed in the background medium by the passage of intermittently ejected radio emitting plasmons作者: 清楚說話 時間: 2025-3-23 17:54
Multi-Frequency Polarization Studies of Radio Galaxies,km telescopes; together with the 6C survey and a new instrument now being commisioned at 151 MHz, we have a frequency range of 100:1 available for high-resolution mapping. The 6C survey has resulted in the discovery of a number of giant radio galaxies, most notably NGC 6251. At 151 MHz, the beautifu作者: 性滿足 時間: 2025-3-23 18:09 作者: FLACK 時間: 2025-3-24 02:16 作者: 多樣 時間: 2025-3-24 02:20 作者: cloture 時間: 2025-3-24 10:21 作者: neolith 時間: 2025-3-24 14:11 作者: 友好關系 時間: 2025-3-24 18:15 作者: ALLEY 時間: 2025-3-24 22:52 作者: DOLT 時間: 2025-3-25 00:58 作者: 頑固 時間: 2025-3-25 05:50 作者: 心胸狹窄 時間: 2025-3-25 08:18
Value Chain — das Szenario der Zukunftdio galaxies. A very small fraction of quasars do, however, show deviations from the classical double structure which are similar to the distortions observed in some low luminosity radio galaxies, e.g., bent double sources. Among radio galaxies, structural distortions seem to be associated with memb作者: 擦試不掉 時間: 2025-3-25 15:12 作者: Pelago 時間: 2025-3-25 17:08 作者: Supplement 時間: 2025-3-25 22:03 作者: 腐爛 時間: 2025-3-26 01:02
Begriffliche und sachliche Grundlegung,d in detail (1) that the energy supply by the nuclear engine to the lobes is strongly time-dependent. Time dependent ejection from the nucleus of a parent galaxy produces low density channels which are ploughed in the background medium by the passage of intermittently ejected radio emitting plasmons作者: cathartic 時間: 2025-3-26 04:19 作者: electrolyte 時間: 2025-3-26 12:01 作者: exhibit 時間: 2025-3-26 16:13
Informationstechnische Grundbildung MS-DOSt Peak to search for optical line emission associated with the jets and lobes of radio galaxies. Several sources have been found in which extended optical line emission is clearly related to the nonthermal radio emission. Some general information on these and a few other sources is summarized in Tab作者: vasospasm 時間: 2025-3-26 19:13
https://doi.org/10.1007/978-3-322-85745-3icularly true in the case of radio galaxies where we believe that the gas is an indespensable part of the cause of nuclear activity and plays a role in the origin and the evolution of the radio galaxy phenomenon. In a few cases we are fortunate to find some of the gas to be ionized with a temperatur作者: MOTTO 時間: 2025-3-26 23:14 作者: paradigm 時間: 2025-3-27 02:43
Informations-/Cybersecurity-Standards,On the subject of radiogalaxies my most vivid reminiscence is of an afternoon in Santa Barbara Street with a marvellous meeting with Baade and Minkowski where they told me that they had discovered that Cygnus A had been identified with a faint galaxy.作者: 母豬 時間: 2025-3-27 05:34
Informationssuche und Online Word-of-MouthRecent observations of Cygnus A with the Hat Creek interferometer at 86.2 GHz limit the spectral curvature of the hotspots and show that the diffuse lobe emission has a spectral index of about 1.5. The central component is, at most, weakly variable and its spectrum shows a distinct break to a spectral index near 0.65 at about 20 GHz.作者: 天文臺 時間: 2025-3-27 11:33 作者: 五行打油詩 時間: 2025-3-27 17:17 作者: famine 時間: 2025-3-27 17:57 作者: Living-Will 時間: 2025-3-27 22:04 作者: 埋伏 時間: 2025-3-28 05:42
VLA and Optical Mapping of the Quasar PKS 0812+020,Observations are reported of the remarkable object PKS 0812+020, the first quasar found to have optical emission in one of its radio lobes. A distinct radio jet is also seen, and there is radio and optical evidence that the quasar is near the center of a galaxy cluster.作者: 容易生皺紋 時間: 2025-3-28 08:54 作者: 符合國情 時間: 2025-3-28 12:14
978-94-009-7783-9International Astronomical Union 1982作者: cauda-equina 時間: 2025-3-28 14:49 作者: 參考書目 時間: 2025-3-28 21:01
https://doi.org/10.1007/978-94-009-7781-5BL Lac object; Galaxy; Quasar; Spiral galaxy; relativistic jet; stellar作者: APEX 時間: 2025-3-28 23:26 作者: 繼承人 時間: 2025-3-29 05:18 作者: micronized 時間: 2025-3-29 09:38
https://doi.org/10.1007/978-3-0348-5164-0s from the Parkes 11 cm catalog which are identified with galaxies of 17th magnitude or brighter in the declination zone -17° to -40°. Our objective is to cross-correlate the radio, infrared, optical, and other properties of a properly defined sample of radio galaxies.作者: 匍匐 時間: 2025-3-29 14:51 作者: arrhythmic 時間: 2025-3-29 17:30
The Spectral Index Distribution of Cygnus A,ce. Although both components show a steepening of spectral index away from the hotspots there is a marked asymmetry between the two components. This is interpreted as being due to a higher value of magnetic field in the S. component.作者: Limited 時間: 2025-3-29 20:04
,Nuclear Ejection — One Side at a Time,n. The most likely explanation for the observed asymmetries is that ejection from the active nucleus occurs in only one direction at a time. This direction then switches back and forth to form the large scale double structures. Implications of this picture for the nuclear engine and the radio source environment are discussed.作者: 圓錐 時間: 2025-3-30 01:40
A Complete Sample of Radio Galaxies,s from the Parkes 11 cm catalog which are identified with galaxies of 17th magnitude or brighter in the declination zone -17° to -40°. Our objective is to cross-correlate the radio, infrared, optical, and other properties of a properly defined sample of radio galaxies.作者: LIKEN 時間: 2025-3-30 04:51 作者: 狼群 時間: 2025-3-30 09:41 作者: 樹木心 時間: 2025-3-30 12:48 作者: 不規(guī)則的跳動 時間: 2025-3-30 17:48
Value Chain — das Szenario der Zukunftisplaced components reported previously for these sources are indeed connected with the quasars themselves and, therefore, the distortions are not simply projection effects. We also report the discovery of a very narrow northwesterly pointing jet in the quasar 3C 275.1.作者: 責任 時間: 2025-3-30 20:50
Informationsverarbeitung im Bauunternehmenterize the spectral shape. The first is the ., ?, defined as the slope of the fit curve at the geometric mean of the lowest and highest observing frequency. As a measure of the spectral curvature we derived the ., Δα, along the fit curve between the lowest and highest observing frequency, i.e. Δα po作者: intrigue 時間: 2025-3-31 03:29 作者: athlete’s-foot 時間: 2025-3-31 08:40
1743-9213 d the physical processes associated with them, but there were also papers on statistical studies and cosmology. The symposium was attended by 209 scientists from 18 countries.978-94-009-7783-9978-94-009-7781-5Series ISSN 1743-9213 Series E-ISSN 2352-2186 作者: inclusive 時間: 2025-3-31 10:11 作者: BRAVE 時間: 2025-3-31 17:02
High Resolution VLA Observations of Quasars with Distorted Radio Stucture,isplaced components reported previously for these sources are indeed connected with the quasars themselves and, therefore, the distortions are not simply projection effects. We also report the discovery of a very narrow northwesterly pointing jet in the quasar 3C 275.1.作者: 安裝 時間: 2025-3-31 18:12 作者: 牽索 時間: 2025-4-1 00:57 作者: strain 時間: 2025-4-1 03:03
https://doi.org/10.1007/978-3-663-05229-6 the collimated jet energy into a diffuse emission region. Despite their usually low brightness these diffuse emission regions dominate the internal energy content in particles and fields, even for the collimated doubles. Note that only 1% of the total energy in Cyg A is in the hot spots (Perola, 1981).作者: LAP 時間: 2025-4-1 07:51
