標(biāo)題: Titlebook: Circumstellar Matter 1994; Proceedings of an In G. D. Watt,P. M. Williams Conference proceedings 1995 Springer Science+Business Media Dordr [打印本頁] 作者: 獨(dú)裁者 時(shí)間: 2025-3-21 18:56
書目名稱Circumstellar Matter 1994影響因子(影響力)
作者: 騙子 時(shí)間: 2025-3-21 21:08 作者: lavish 時(shí)間: 2025-3-22 01:49 作者: 范例 時(shí)間: 2025-3-22 05:21
Regulierung der Kulturberufe in Deutschlandor NGC 1333 IRAS 4 and IRAS 16293-2422, while L1551 IRS5 and HL Tau were only marginally detected. For GG Tau we measured a 2 . upper limit of 3%. The polarization is interpreted in terms of thermal emission by magnetically aligned dust grains in circumstellar disks or envelopes. We have found a def作者: CODE 時(shí)間: 2025-3-22 12:48 作者: NAIVE 時(shí)間: 2025-3-22 15:46
Regulierung der Kulturberufe in Deutschland progress in our observational understanding of low-mass protostars. Submillimeter continuum observations suggest that the youngest stellar objects detected in the near-/mid-IR range —the so-called Class I sources or “infrared protostars” — have only residual amounts of circumstellar material and ar作者: NAIVE 時(shí)間: 2025-3-22 20:13
Regulierung der Kulturberufe in Deutschlands of ammonia to investigate the molecular circumstellar environment on thousand AU scales. Although the dust spectra of these objects resemble one another, a variety of physical characteristics occur in the sample. In some circumstellar environments, NGC1333IRAS4A and S106FIR, ammonia bearing gas cl作者: 背叛者 時(shí)間: 2025-3-22 22:15
https://doi.org/10.1007/978-3-8350-9166-5. Detailed parameters are calculated, such as temperature, mass, luminosity and radial density dependence. On the basis of lifetime and luminosity arguments, the cores are found to be pre-protostellar in nature, undergoing the ambipolar diffusion phase prior to protostellar collapse. The cores do no作者: 不能約 時(shí)間: 2025-3-23 01:55
Regulierung der Kulturberufe in Deutschlandile lacking any known embedded infrared sources. Subsequent H.CO studies at the VLA and the JCMT have not provided a consistent model of the gas structure and kinematics. Here, we present the first high-velocity resolution maps in the 218 GHz and 352 GHz transitions of H.CO. Our multi-transition stu作者: 泥土謙卑 時(shí)間: 2025-3-23 06:16 作者: 輕率看法 時(shí)間: 2025-3-23 09:55 作者: 時(shí)代 時(shí)間: 2025-3-23 16:25 作者: lymphedema 時(shí)間: 2025-3-23 18:26 作者: Affluence 時(shí)間: 2025-3-24 00:20 作者: Fracture 時(shí)間: 2025-3-24 02:32
https://doi.org/10.1007/978-3-322-99358-8environments of low to intermediate mass stars. Depletions of gas-phase molecules, grain mantle evaporation, and shock interactions actively drive chemical processes in different regions around young stars. We present results for two systems, IRAS 05338-0624 and NGC 1333 IRAS 4, to illustrate the be作者: bacteria 時(shí)間: 2025-3-24 09:34
https://doi.org/10.1007/978-3-322-99358-8compared with line intensities of C.O and H.CO. We include in this analysis results from other sub-mm continuum surveys of compact HII regions, T-Tauri stars and class 0 YSO’s. The results provide a statistical sample of the long-wavelength dust spectra of ～ 60 Young Stellar Objects. Data are displa作者: Congruous 時(shí)間: 2025-3-24 13:27 作者: 卷發(fā) 時(shí)間: 2025-3-24 16:38 作者: PAEAN 時(shí)間: 2025-3-24 19:29 作者: Herbivorous 時(shí)間: 2025-3-25 02:27
https://doi.org/10.1007/978-3-8350-9166-5tellar disks around young stars. The CO emission flux and the detailed shape of the overtone bands are well matched by simple Keplerian disk models. A brief overview of the use of infrared CO emission as a diagnostic of the kinematics and conditions of gas in the inner disks of young stars is presented.作者: 黃瓜 時(shí)間: 2025-3-25 07:06
Klaudius Heda,Klaus Heine,Erich Oltmanns time-dependent radio sources which may be evidence for proto-stars losing their magnetic fields, and a `bullet’ which appears to be the head of a high velocity jet which causes the entrainment of molecular outflows.作者: Eviction 時(shí)間: 2025-3-25 11:16 作者: 爵士樂 時(shí)間: 2025-3-25 13:37 作者: temperate 時(shí)間: 2025-3-25 18:47
Observations of Disks around Protostellar Sources with Nobeyama Millimeter Array shows that the 98 GHz continuum emission tends to be weaker for embedded sources than for visible T Tauri stars, which is consistent with our previous interpretation of disk formation. Direct observations of the formation of a centrifugally supported viscous accretion disk around HL Tau is discussed.作者: aplomb 時(shí)間: 2025-3-25 22:28
Infrared CO Emission and Disks around Young Starstellar disks around young stars. The CO emission flux and the detailed shape of the overtone bands are well matched by simple Keplerian disk models. A brief overview of the use of infrared CO emission as a diagnostic of the kinematics and conditions of gas in the inner disks of young stars is presented.作者: 聰明 時(shí)間: 2025-3-26 03:27 作者: 作嘔 時(shí)間: 2025-3-26 04:20 作者: 門窗的側(cè)柱 時(shí)間: 2025-3-26 10:56 作者: Contracture 時(shí)間: 2025-3-26 16:16
http://image.papertrans.cn/c/image/226656.jpg作者: FISC 時(shí)間: 2025-3-26 18:43 作者: 石墨 時(shí)間: 2025-3-27 00:42 作者: 吸引力 時(shí)間: 2025-3-27 03:35
Conference proceedings 1995dinburgh, on Blackford Hill in 1884. Circumstellar Matter was selected as the topic because of important contributions toward research in the field by recent observations in the infrared and submillimetre, particularly with the two telescopes which the Observatory has both operated and built instru-作者: condone 時(shí)間: 2025-3-27 08:51 作者: 凹處 時(shí)間: 2025-3-27 12:15 作者: GIBE 時(shí)間: 2025-3-27 15:58
Near-IR Spectroscopy and the Photospheres of Embedded YSOsnresolved .CO(2–0) bandhead, which when combined with inferred CO excitation temperatures and optical depths clearly points to a photospheric rather than a disk origin for the bands. They also show that embedded Class Its are not rapidly rotating.作者: 滑動 時(shí)間: 2025-3-27 19:01
Theoretical Modelling of SiO Maser LineshapesR regimes can produce peculiar lineshapes. When many maser ‘cells’ were considered, distributed at random in the stellar envelope, the individual lineshapes were combined to produce synthetic spectra. Maser action is predicted in higher rotational transitions than those observed to date, for example the J=7-6 transition of v=2.作者: hair-bulb 時(shí)間: 2025-3-27 23:33
Sub-Mm and Far-Infrared Continuum Observations of Herbig-Haro Exciting Stars and Other YSO’syed on mm to FIR colour-colour diagrams, with the aim of trying to discriminate between different stages of star formation through general spectral characteristics, rather than detailed model fits to individual sources.作者: puzzle 時(shí)間: 2025-3-28 04:09
Extended Structures around YSO in Mid-IR Broad Emission Featuresin these clouds which do not exhibit UIR features (Elias 29 and R CrA) shows these sources to be point-like. We have produced morphological models based on the mid-IR images for the observed extended structures.作者: 門窗的側(cè)柱 時(shí)間: 2025-3-28 09:17
rvatory, Edinburgh, on Blackford Hill in 1884. Circumstellar Matter was selected as the topic because of important contributions toward research in the field by recent observations in the infrared and submillimetre, particularly with the two telescopes which the Observatory has both operated and bui作者: Acetaldehyde 時(shí)間: 2025-3-28 12:51 作者: 不近人情 時(shí)間: 2025-3-28 15:46
https://doi.org/10.1007/978-3-8350-9166-5uments, the cores are found to be pre-protostellar in nature, undergoing the ambipolar diffusion phase prior to protostellar collapse. The cores do not follow the r. density dependence predicted by the standard model, but are consistent with a recent model of magnetic support of cloud cores.作者: defuse 時(shí)間: 2025-3-28 21:08
Regulierung der Kulturberufe in Deutschlandture and kinematics. Here, we present the first high-velocity resolution maps in the 218 GHz and 352 GHz transitions of H.CO. Our multi-transition study, at velocity and spatial resolutions comparable to existing VLA data, has proven crucial to forming a coherent picture of the gas kinematics.作者: hankering 時(shí)間: 2025-3-29 01:48 作者: Outspoken 時(shí)間: 2025-3-29 05:04
Millimeter Polarimetry of Star-Forming Regions: Magnetic Field Structure around Low-Mass Stars polarization is interpreted in terms of thermal emission by magnetically aligned dust grains in circumstellar disks or envelopes. We have found a definite geometrical relation between the polarization and other circumstellar structure.作者: 制度 時(shí)間: 2025-3-29 10:19 作者: Cocker 時(shí)間: 2025-3-29 13:51 作者: 條街道往前推 時(shí)間: 2025-3-29 17:30 作者: 江湖騙子 時(shí)間: 2025-3-29 20:55
Grundlagen zur Versicherungsaufsicht,ive young stars, and offer our best prospect for making a complete census of star-forming regions in the Galaxy. Using radio interferometers the structure of the regions can be probed on angular scales of 1 milliarcsecond. The use of masers as probes of the physical conditions in these regions is discussed.作者: 生命 時(shí)間: 2025-3-30 03:25 作者: 許可 時(shí)間: 2025-3-30 08:05
Regulierung der Kulturberufe in Deutschlandnresolved .CO(2–0) bandhead, which when combined with inferred CO excitation temperatures and optical depths clearly points to a photospheric rather than a disk origin for the bands. They also show that embedded Class Its are not rapidly rotating.作者: CRUDE 時(shí)間: 2025-3-30 12:16 作者: 一瞥 時(shí)間: 2025-3-30 14:28
https://doi.org/10.1007/978-3-322-99358-8yed on mm to FIR colour-colour diagrams, with the aim of trying to discriminate between different stages of star formation through general spectral characteristics, rather than detailed model fits to individual sources.作者: 蜿蜒而流 時(shí)間: 2025-3-30 20:18
Regulierung und Kontrolle von Bankenin these clouds which do not exhibit UIR features (Elias 29 and R CrA) shows these sources to be point-like. We have produced morphological models based on the mid-IR images for the observed extended structures.作者: 公社 時(shí)間: 2025-3-31 00:15
Circumstellar Envelopes and Disks of Pre-Main Sequence Starsccrete substantial amounts of mass may be seen through their dusty infalling envelopes even at optical wavelengths, because of the presence of holes or large departures from spherical symmetry in the envelopes. The evidence for this picture is summarized in the context of one well-studied young star作者: Infelicity 時(shí)間: 2025-3-31 04:03
Observations of Disks around Protostellar Sources with Nobeyama Millimeter Array shows that the 98 GHz continuum emission tends to be weaker for embedded sources than for visible T Tauri stars, which is consistent with our previous interpretation of disk formation. Direct observations of the formation of a centrifugally supported viscous accretion disk around HL Tau is discusse作者: 不可思議 時(shí)間: 2025-3-31 05:04
Near-IR Spectroscopy and the Photospheres of Embedded YSOsrtone absorption bands of varying strength in the K window, whether they have optical counterparts or not. Class I sources tend to show featureless 2 . continua even though a S/N > 100 was achieved. High resolution (R=17000) echelle spectra were also obtained for a sub-sample of YSOs. Most show an u作者: pericardium 時(shí)間: 2025-3-31 11:03
Millimeter Polarimetry of Star-Forming Regions: Magnetic Field Structure around Low-Mass Starsor NGC 1333 IRAS 4 and IRAS 16293-2422, while L1551 IRS5 and HL Tau were only marginally detected. For GG Tau we measured a 2 . upper limit of 3%. The polarization is interpreted in terms of thermal emission by magnetically aligned dust grains in circumstellar disks or envelopes. We have found a def作者: Nonconformist 時(shí)間: 2025-3-31 16:40
Infrared CO Emission and Disks around Young Starstellar disks around young stars. The CO emission flux and the detailed shape of the overtone bands are well matched by simple Keplerian disk models. A brief overview of the use of infrared CO emission as a diagnostic of the kinematics and conditions of gas in the inner disks of young stars is presen作者: 灰姑娘 時(shí)間: 2025-3-31 21:12 作者: 檢查 時(shí)間: 2025-3-31 22:54 作者: 爵士樂 時(shí)間: 2025-4-1 02:08 作者: ALIAS 時(shí)間: 2025-4-1 09:41 作者: hardheaded 時(shí)間: 2025-4-1 14:11 作者: 無法破譯 時(shí)間: 2025-4-1 16:44
Theoretical Modelling of SiO Maser Lineshapeshe circumstellar envelope supporting the masers. The lineshape of a single maser spot is likely to be dominated by conditions of complete velocity redistribution (CVR) for low to moderate amplification, changing to NVR (no velocity redistribution) only for strongly saturating masers. Both CVR and NV作者: Fester 時(shí)間: 2025-4-1 18:51
