標(biāo)題: Titlebook: Astrometric Binaries; An International Con Zdeněk Kopal,Jürgen Rahe Book 1985 D. Reidel Publishing Company, Dordrecht, Holland 1985 astrome [打印本頁(yè)] 作者: Inveigle 時(shí)間: 2025-3-21 17:48
書(shū)目名稱(chēng)Astrometric Binaries影響因子(影響力)
作者: 信條 時(shí)間: 2025-3-21 21:55 作者: staging 時(shí)間: 2025-3-22 00:33 作者: 分開(kāi)如此和諧 時(shí)間: 2025-3-22 06:14
Weitere Arten geistigen Eigentumss recognized by everybody, that many essential properties of stars can only be obtained from observations of close and wide binaries..It is the aim of this contribution to see how binaries can help us to better understand binaries and single stars, even if the existence of the latter is not yet definitely confirmed.作者: expdient 時(shí)間: 2025-3-22 11:43
Project HIPPARCOSf basic project features to astronomers and astrophysicists not familiar with astrometric techniques by exploiting updated technical information on project parameters not generally available in the open literature.作者: 搜集 時(shí)間: 2025-3-22 14:24
High Resolution Problems in Astrometry and Spectroscopy of Binaries and Their Significance for the Ps recognized by everybody, that many essential properties of stars can only be obtained from observations of close and wide binaries..It is the aim of this contribution to see how binaries can help us to better understand binaries and single stars, even if the existence of the latter is not yet definitely confirmed.作者: ABASH 時(shí)間: 2025-3-22 21:00
Weitere Arten geistigen Eigentumster. My talk shall be divided into the following parts: (1) Bessel’s course of life and family; (2) Education in astronomy in Bremen; (3) Fundamenta Astronomiae; (4) Fundamental observations at the Konigsberg Observatory (or according to S.Newcomb (1906): the German School of Astrometry); (5) 61 Cygni; (6) Bibliography of Bessel’s original works.作者: hurricane 時(shí)間: 2025-3-23 00:11
Friedrich Wilhelm Bessel (1784–1846)ter. My talk shall be divided into the following parts: (1) Bessel’s course of life and family; (2) Education in astronomy in Bremen; (3) Fundamenta Astronomiae; (4) Fundamental observations at the Konigsberg Observatory (or according to S.Newcomb (1906): the German School of Astrometry); (5) 61 Cygni; (6) Bibliography of Bessel’s original works.作者: 大包裹 時(shí)間: 2025-3-23 03:06 作者: Cardiac-Output 時(shí)間: 2025-3-23 07:23 作者: gentle 時(shí)間: 2025-3-23 10:08 作者: 責(zé)怪 時(shí)間: 2025-3-23 15:32 作者: 逢迎春日 時(shí)間: 2025-3-23 20:32
https://doi.org/10.1007/978-3-658-31489-7n’s working definition of a true binary should be extended if it were to include all true binaries, (d) The doubles are probably stars of Population I. (e) The logarithm to the base 10 of the cumulative counts can be represented by an empirical relation A + B(△. - 1.5) + C(△. - 1.5)..作者: 瑣碎 時(shí)間: 2025-3-23 22:48 作者: forthy 時(shí)間: 2025-3-24 06:06 作者: BLANC 時(shí)間: 2025-3-24 07:54 作者: Working-Memory 時(shí)間: 2025-3-24 14:12 作者: 戰(zhàn)役 時(shí)間: 2025-3-24 18:06
Astrometric Binaries and Their Role in Double Star Astronomylass of visual binaries, as illustrated by systems where the perturbing unseen component has been rendered visible by more powerful instruments, as in the case of Sirius B, predicted by Bessel, Procyon B, and Ross 614.作者: BLUSH 時(shí)間: 2025-3-24 19:24
Prefacee International Astronomical Union. The first meeting was organized in 1959 and dealt with Variable Stars, the last one was held in 1981 and focussed on ‘Binary and Multiple Stars as Tracers of Stellar Evolution’.作者: DAUNT 時(shí)間: 2025-3-25 00:25 作者: EXTOL 時(shí)間: 2025-3-25 03:36
Friedrich Wilhelm Bessel (1784–1846)stronomer F. W. Bessel. You have given me a welcome opportunity to express an appreciation of Bessel’s work which has marked the beginning of research on the motion of stars and which was pioneer work on astrometric binaries and on the determination of stellar distances. Bessel has established the f作者: TAP 時(shí)間: 2025-3-25 11:08
Project HIPPARCOSthe scientific instrumentation and on an explanation of how scientific objectives can be achieved. The purpose is to provide quantitative visibility of basic project features to astronomers and astrophysicists not familiar with astrometric techniques by exploiting updated technical information on pr作者: reperfusion 時(shí)間: 2025-3-25 13:44 作者: 美學(xué) 時(shí)間: 2025-3-25 17:22
High Resolution Problems in Astrometry and Spectroscopy of Binaries and Their Significance for the Premarkable evolution has resulted now in the reversed situation with the painful question, at least for some of us: do single stars really exist?.It is recognized by everybody, that many essential properties of stars can only be obtained from observations of close and wide binaries..It is the aim of作者: floaters 時(shí)間: 2025-3-25 23:11
Statistical Models for HIPPARCOS Binariesr axes, the mass-ratios, and the eccentricities. The model is ‘calibrated’ to give correct numbers of observed visual binaries and is then used to study the (closer) binaries of relevance for the HIPPARCOS mission. One main purpose is to estimate the influence of astrometric binaries observed by the作者: byline 時(shí)間: 2025-3-26 00:40 作者: 軍械庫(kù) 時(shí)間: 2025-3-26 07:40 作者: 怪物 時(shí)間: 2025-3-26 12:16
On the Determination of Double Star Orbitsder derivatives in the development of the appropriate equations of condition. Also, some improvements of the Kowalsky-Seeliger method are suggested which improve the accuracy of the orbit used as first approximation.作者: 堅(jiān)毅 時(shí)間: 2025-3-26 13:17
Distribution of Astrometric Binaries in Various Galactic Latitudes. < 20° and . > 40° is nearly twice as large as the galactic concentration of stars in general. (b) The astrographic catalogues are not complete in the fainter magnitudes. (c)The large value of the ratio .:.. (observed to optical number of pairs) from Kreiken’s formula shows that almost all stars in作者: 完成 時(shí)間: 2025-3-26 19:58 作者: Arb853 時(shí)間: 2025-3-26 22:23
http://image.papertrans.cn/b/image/163575.jpg作者: Obsequious 時(shí)間: 2025-3-27 02:50 作者: 壟斷 時(shí)間: 2025-3-27 07:07 作者: faucet 時(shí)間: 2025-3-27 12:58 作者: 教育學(xué) 時(shí)間: 2025-3-27 16:52
Forschen – Patentieren – VerwertenOn the basis of Bessel’s classical papers . and . compact formulae are given to interpret the observed variations in the shifted lines of SS433 in terms of nutational and precessional effects of a disk in a binary system作者: 催眠藥 時(shí)間: 2025-3-27 18:08
Forschen – Patentieren – VerwertenConcepts of relativistic astrometry — such as Weyl’s stellar compass or the concept of ‘flat-space plus forces’ — are discussed. To visualize effects from light deflection pictures showing the stellar sky as seen from the vicinity of a strongly gravitating source are presented.作者: graphy 時(shí)間: 2025-3-28 00:00
Forschen – Patentieren – VerwertenFollowing the kind invitation of Prof. Kopal, I am going to refer at this Conference on current work carried out by the IAU Commission 26, after having circulated a letter to all members to collect recent information at various places. I am grateful to those who replied in time for this report, which will also contain some personal considerations.作者: embolus 時(shí)間: 2025-3-28 05:23 作者: FLAGR 時(shí)間: 2025-3-28 07:46 作者: elucidate 時(shí)間: 2025-3-28 11:57 作者: 娘娘腔 時(shí)間: 2025-3-28 17:12 作者: 急性 時(shí)間: 2025-3-28 22:29 作者: Evocative 時(shí)間: 2025-3-29 02:04
Relativistic AstrometryConcepts of relativistic astrometry — such as Weyl’s stellar compass or the concept of ‘flat-space plus forces’ — are discussed. To visualize effects from light deflection pictures showing the stellar sky as seen from the vicinity of a strongly gravitating source are presented.作者: invade 時(shí)間: 2025-3-29 04:47
Current Work on Binary and Multiple StarsFollowing the kind invitation of Prof. Kopal, I am going to refer at this Conference on current work carried out by the IAU Commission 26, after having circulated a letter to all members to collect recent information at various places. I am grateful to those who replied in time for this report, which will also contain some personal considerations.作者: 疏忽 時(shí)間: 2025-3-29 09:34 作者: HERTZ 時(shí)間: 2025-3-29 14:25
Work on Astrometric Binaries in ChinaThe investigations of astrometric binary systems, currently carried out in the People’s Republic of China, are described and discussed.作者: 不自然 時(shí)間: 2025-3-29 16:18
Close Triple Star SystemsTriple star systems, especially those in which one star has very small mass may be more common than has been generally considered. Here is summarized some of the recent evidence supporting this possibility.作者: 先鋒派 時(shí)間: 2025-3-29 22:45
Prefacee International Astronomical Union. The first meeting was organized in 1959 and dealt with Variable Stars, the last one was held in 1981 and focussed on ‘Binary and Multiple Stars as Tracers of Stellar Evolution’.作者: 他一致 時(shí)間: 2025-3-30 01:53
On the Observation of Double Stars for the Determination of Their Proper Motions the visual method only. In some declination zones these stars have been observed at a few observatories of the USSR and in Strasbourg, Santiago de Chile and Beograd. The importance of further DS observations, particularly in the southern sky, is stressed.作者: 盟軍 時(shí)間: 2025-3-30 04:49 作者: 外表讀作 時(shí)間: 2025-3-30 12:03 作者: 鳴叫 時(shí)間: 2025-3-30 16:02 作者: 真 時(shí)間: 2025-3-30 18:13
Weitere Arten geistigen Eigentumsstronomer F. W. Bessel. You have given me a welcome opportunity to express an appreciation of Bessel’s work which has marked the beginning of research on the motion of stars and which was pioneer work on astrometric binaries and on the determination of stellar distances. Bessel has established the f作者: Albumin 時(shí)間: 2025-3-30 20:49 作者: 南極 時(shí)間: 2025-3-31 03:01
Forschen – Patentieren – Lizenzierennd multiple systems. Because of the Hipparcos observation technique, these systems have to be divided in a few particular categories that are described and discussed. Each of them leads to specific considerations concerning the contribution of the Hipparcos observations. The category of very close p作者: 時(shí)間等 時(shí)間: 2025-3-31 07:42
Weitere Arten geistigen Eigentumsremarkable evolution has resulted now in the reversed situation with the painful question, at least for some of us: do single stars really exist?.It is recognized by everybody, that many essential properties of stars can only be obtained from observations of close and wide binaries..It is the aim of作者: 變色龍 時(shí)間: 2025-3-31 10:53 作者: 浮夸 時(shí)間: 2025-3-31 16:31 作者: CLAP 時(shí)間: 2025-3-31 20:32 作者: 妨礙議事 時(shí)間: 2025-3-31 21:55 作者: Armory 時(shí)間: 2025-4-1 04:10 作者: 未成熟 時(shí)間: 2025-4-1 06:14
Barbara Engler,Julia Gerstenberge of binaries. Available evidence points toward the assumption that we encounter here primarily a specific technique of observation rather than a specific type of objects. This technique addresses itself to moderately wide pairs among nearby stars, with a in the ‘grey area’ around 10 AU, objects who作者: 瑣碎 時(shí)間: 2025-4-1 13:03 作者: 蒸發(fā) 時(shí)間: 2025-4-1 18:20
Mediale Fremde. , sehen — , erkennen?e International Astronomical Union. The first meeting was organized in 1959 and dealt with Variable Stars, the last one was held in 1981 and focussed on ‘Binary and Multiple Stars as Tracers of Stellar Evolution’.作者: 喚起 時(shí)間: 2025-4-1 19:06
Barbara Engler,Julia Gerstenberg the visual method only. In some declination zones these stars have been observed at a few observatories of the USSR and in Strasbourg, Santiago de Chile and Beograd. The importance of further DS observations, particularly in the southern sky, is stressed.
