標題: Titlebook: Extragalactic Radio Sources; Proceedings of the 1 R. Ekers,C. Fanti,L. Padrielli Conference proceedings 1996 International Astronomical Uni [打印本頁] 作者: BID 時間: 2025-3-21 20:01
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(wǎng)絡(luò)公開度
書目名稱Extragalactic Radio Sources網(wǎng)絡(luò)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: effrontery 時間: 2025-3-21 22:54
https://doi.org/10.1007/978-3-8349-8522-4 observations of Cygnus A at 22 & 43 GHz, which reveal evidence for subluminal motion in jet and counter-jet, and 86 GHz VLBI observations of two extreme γ—blazars, suggesting a tight correlation between their γ—ray activity and the generation of jets.作者: nuclear-tests 時間: 2025-3-22 01:53
Das digitalisierte Kontrollorgan?1 in comparison to the status of 0528+134 in the EGRET energy range. The uncertainties in the flux densities quoted there are less than 5% at 10.55 GHz and lower frequencies, while slightly exceeding this value at 32 GHz and 86 GHz.作者: Pandemic 時間: 2025-3-22 07:09
https://doi.org/10.1007/978-3-322-84818-5 found a single component with . = 8 × 10. K. One year later, within one week of the peak of flare at 3 mm λ, observations with Haystack, Kitt Peak and Hat Creek observatories revealed a component comparable in size and flux density with . = 7 × 10. K. Table 1 details the source models for the two experiments.作者: 多骨 時間: 2025-3-22 12:09 作者: AORTA 時間: 2025-3-22 13:08 作者: AORTA 時間: 2025-3-22 20:13 作者: ear-canal 時間: 2025-3-22 23:46
Conference proceedings 1996ve days, to update their knowledge of thephysics and statistical properties of powerful extragalactic radiosources. .Since their discovery in the fifties enormous progress has been made.The existence of superluminal motions in the cores of radio sources,the presence there of a black hole surrounded 作者: 教唆 時間: 2025-3-23 03:56 作者: 是比賽 時間: 2025-3-23 06:42 作者: Ejaculate 時間: 2025-3-23 12:19 作者: Perineum 時間: 2025-3-23 14:53 作者: Meditate 時間: 2025-3-23 20:00
The Sub-Parsec Scale Jets of AGN observations of Cygnus A at 22 & 43 GHz, which reveal evidence for subluminal motion in jet and counter-jet, and 86 GHz VLBI observations of two extreme γ—blazars, suggesting a tight correlation between their γ—ray activity and the generation of jets.作者: HUMID 時間: 2025-3-24 01:03 作者: Bureaucracy 時間: 2025-3-24 03:28
A Dramatic (and Invisible!) Flare in NRAO 530 found a single component with . = 8 × 10. K. One year later, within one week of the peak of flare at 3 mm λ, observations with Haystack, Kitt Peak and Hat Creek observatories revealed a component comparable in size and flux density with . = 7 × 10. K. Table 1 details the source models for the two experiments.作者: Suppository 時間: 2025-3-24 09:06
High Frequency Radio Observations of the Nucleus of Cen Arays (Kinzer et al. 1995). In the radio domain, the emission from the core dominates at high frequencies and a considerable effort was made to study variability at 22 and 43 GHz for more than ten years (Botti & Abraham 1995).作者: Macronutrients 時間: 2025-3-24 13:23 作者: Inferior 時間: 2025-3-24 16:13 作者: florid 時間: 2025-3-24 20:00
Betriebs- und Wirtschaftsinformatikfar side jets are similar. This was interpreted as the result of free-free absorption in an ionized medium that lies in front of the counterjet but not in front of the near-side jet. An accretion disk or torus has an appropriate geometry to show this effect (for an analysis, see Levinson .., 1995).作者: CROW 時間: 2025-3-25 02:39 作者: sperse 時間: 2025-3-25 06:26
Constraints on the Accretion Region in NGC 1275 from VLBA Observations of the Counterjetfar side jets are similar. This was interpreted as the result of free-free absorption in an ionized medium that lies in front of the counterjet but not in front of the near-side jet. An accretion disk or torus has an appropriate geometry to show this effect (for an analysis, see Levinson .., 1995).作者: Entropion 時間: 2025-3-25 08:31
The Environment of OJ 287: Nearby Galaxies and a Long Optical Jet?econd seeing conditions from the whole 1 Jy sample (Stickel et al. 1991) of BL Lac objects. The aims of this study are: 1. to search for very close companions to the BL Lacs, 2. to study the large scale galaxy clustering around the BL Lacs and 3. to study the BL Lac hosts themselves.作者: 盟軍 時間: 2025-3-25 12:17
https://doi.org/10.1007/978-3-322-85746-0ry made while Jansky was investigating for the Bell Telephone Laboratories the sources of radio interferences with a rotating antenna array operating at about 14 m wavelength. The study of local disturbances was of primary importance in the rapid development of radio communications which had been geared by the Marconi’s discovery.作者: 釋放 時間: 2025-3-25 18:10
https://doi.org/10.1007/978-3-642-80583-7 was made with the VLBA. The dual-frequency observations identify the core of the radio source, while the multi-epoch observations show the complex structural evolution at a resolution of 0.1 pc. Subluminal motion of ≈ 0.15c is evident. Structural changes are observed on time scales shorter than four months.作者: 剛開始 時間: 2025-3-25 23:29 作者: Asseverate 時間: 2025-3-26 03:15 作者: 無法破譯 時間: 2025-3-26 07:27 作者: 情愛 時間: 2025-3-26 12:27
Monitoring the Jet in Centaurus a at 0.1 Parsec Resolution was made with the VLBA. The dual-frequency observations identify the core of the radio source, while the multi-epoch observations show the complex structural evolution at a resolution of 0.1 pc. Subluminal motion of ≈ 0.15c is evident. Structural changes are observed on time scales shorter than four months.作者: 太空 時間: 2025-3-26 14:44 作者: 來這真柔軟 時間: 2025-3-26 19:24 作者: 膽小鬼 時間: 2025-3-26 21:10 作者: Transfusion 時間: 2025-3-27 02:34
https://doi.org/10.1007/978-3-8350-9452-9s consistent with a stationary bright region located 4 to 5 mas from the core and motion of the other features with apparent velocities of 0.4 to 0.7 mas/yr. Our high resolution 1.3 cm image indicates that the ‘jet’ breaks up into 5 or more distinct features.作者: 鞭子 時間: 2025-3-27 06:20 作者: jungle 時間: 2025-3-27 10:15 作者: STIT 時間: 2025-3-27 14:13 作者: 忍受 時間: 2025-3-27 20:00 作者: Middle-Ear 時間: 2025-3-27 23:50 作者: congenial 時間: 2025-3-28 02:29
https://doi.org/10.1007/978-3-8349-8522-4scale — regions of active galactic nuclei (AGN), which are self-absorbed at lower frequencies. Here we briefly present preliminary results from recent observations of Cygnus A at 22 & 43 GHz, which reveal evidence for subluminal motion in jet and counter-jet, and 86 GHz VLBI observations of two extr作者: 其他 時間: 2025-3-28 07:52
Das digitalisierte Kontrollorgan? NRL Green Bank Interferometer. The observing methods are described elsewhere (Reich .., 1993; Pohl .., 1995). The radio lightcurves are given in Fig.1 in comparison to the status of 0528+134 in the EGRET energy range. The uncertainties in the flux densities quoted there are less than 5% at 10.55 GH作者: START 時間: 2025-3-28 10:58
https://doi.org/10.1007/978-3-322-84818-5anged from its pre-outburst state. Observations with Haystack, Kitt Peak and Owens Valley observatories in April 1994, prior to the onset of the flare found a single component with . = 8 × 10. K. One year later, within one week of the peak of flare at 3 mm λ, observations with Haystack, Kitt Peak an作者: 包租車船 時間: 2025-3-28 17:50
Informationstheorie und Codierungd as > 100 MeV gamma-ray sources with the Energetic Gamma-Ray Telescope (EGRET) on board the . (Thompson .. 1995). These are the first results in a continuing program of VLBI observations of southern EGRET identifications with the Southern Hemisphere VLBI Experiment (SHEVE) array of telescopes (Jaun作者: hemorrhage 時間: 2025-3-28 20:01 作者: 事物的方面 時間: 2025-3-29 01:01 作者: defibrillator 時間: 2025-3-29 04:06
Datenschutz und Datensicherung, compact core with a one sided jet (Jauncey et al. 1995). The compact core is highly variable in wavelengths ranging from the radio region to X and γ rays (Kinzer et al. 1995). In the radio domain, the emission from the core dominates at high frequencies and a considerable effort was made to study v作者: 記成螞蟻 時間: 2025-3-29 07:36
Informationsverarbeitung am Neuen MarktHz (Walker .., 1994), and simultaneously in Global VLBI observations at 22 GHz (Vermeulen .., 1994). Comparison of these images indicated a strongly inverted spectrum in this feature, but the interpretation was clouded by the two-year difference between the epochs of observation. To resolve this amb作者: 有幫助 時間: 2025-3-29 14:07
Betriebs- und Wirtschaftsinformatiktions on the VLBA. at 8.4 GHz (Walker .., 1994) and in Global VLBI observations at 22 GHz (Vermeulen .., 1994). The jet/counterjet length ratio, brightness ratio at 22 GHz, and speeds, as measured over many years with VLBI, fit a simple beaming model with symmetric jets oriented at 30–50 degrees to 作者: GRAZE 時間: 2025-3-29 17:53
Informationsverarbeitung in Bauunternehmenacross inhomogeneous networks. The higher observing frequency and increased spatial resolution diminishes the chances of finding ideal VLBI polarization calibrators. The advent of the Very Long Baseline Array (VLBA), which has standardized feeds with low instrumental polarization, has minimized thes作者: Blood-Vessels 時間: 2025-3-29 21:01
https://doi.org/10.1007/978-3-8350-9452-9s consistent with a stationary bright region located 4 to 5 mas from the core and motion of the other features with apparent velocities of 0.4 to 0.7 mas/yr. Our high resolution 1.3 cm image indicates that the ‘jet’ breaks up into 5 or more distinct features.作者: exigent 時間: 2025-3-30 02:12 作者: 完全 時間: 2025-3-30 05:41
Lehr- und Forschungstexte Psychologieh flux outbursts. The components have been interpreted as weak relativistic shocks associated with opposed jets. Recent dramatic changes in the nucleus of BL Lac have been seen: optical spectra (Lawrence .. 1995) show the presence of broad-line Hα and [NII] emission lines. The single-dish radio flux作者: 商業(yè)上 時間: 2025-3-30 12:10
Schriftenreihe Markt und Marketingal Dynamics Program. Such data provide valuable maps which are useful to track superluminal components on short time scales (Charlot 1992). We have mapped and model-fitted OJ287 at ten epochs separated by intervals of a few months between 1985.4 and 1988.1 (Fig. 1a). The structure of OJ287 over this作者: 擋泥板 時間: 2025-3-30 13:07 作者: 暴露他抗議 時間: 2025-3-30 19:38 作者: Carbon-Monoxide 時間: 2025-3-30 22:06 作者: 整體 時間: 2025-3-31 02:33
International Astronomical Union Symposiahttp://image.papertrans.cn/e/image/319977.jpg作者: 性別 時間: 2025-3-31 06:36 作者: Asparagus 時間: 2025-3-31 09:55 作者: 并排上下 時間: 2025-3-31 14:05
Extragalactic Radio Sources978-94-009-0295-4Series ISSN 1743-9213 Series E-ISSN 2352-2186 作者: chapel 時間: 2025-3-31 18:30
Guglielmo Marconi and Radioastronomyitself a recognition of the widespread feeling of a historical link between the great discovery of Guglielmo Marconi and the birth of radioastronomy. Obviously, it is not a direct link. We all well know that the birth of radioastronomy must be traced back to the year 1932 when Karl Jansky recognized作者: Facilities 時間: 2025-4-1 00:46
The Sub-Parsec Scale Jets of AGNscale — regions of active galactic nuclei (AGN), which are self-absorbed at lower frequencies. Here we briefly present preliminary results from recent observations of Cygnus A at 22 & 43 GHz, which reveal evidence for subluminal motion in jet and counter-jet, and 86 GHz VLBI observations of two extr
