New aspects for new generation telescopes     

Eva K. Grebel 《Astrophysics and Space Science》2003,284(2):947-956

A selection of future observing facilities relevant to galaxy evolution science covering the wavelength range from X-rays to the radio regime are summarized. Scientific aspects that can be investigated with these next generation telescopes are briefly discussed. While prospects look bright for highly advanced and innovative future facilities, it will be important to ensure that human resources in observational astronomy and theory – both in terms of expertise, funding, and available positions – are keeping pace with the technological developments. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

An exoplanet in orbit around τ¹ Gruis     

Hugh R. A. Jones  R. Paul Butler  C. G. Tinney  Geoffrey W. Marcy  Alan J. Penny  Chris McCarthy  Brad D. Carter 《Monthly notices of the Royal Astronomical Society》2003,341(3):948-952

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Evidence for an Ionized Rotating Structure Around RW Aur     

Ana I. Gómez de Castro  Eva Verdugo 《Astrophysics and Space Science》2004,292(1-4):691-696

Profiles of the UV semiforbidden lines of C III and Si III of RW Aur have been obtained with the HST/STIS. The C III profile shows two high velocity components at v = ± 170 km s^?1 and a central one. The Si III profile is very broad (FWHM = 293 km s^?1) and the high velocity components are unresolved. It is shown that the high velocity components are most probably produced in a rotating belt alike the detected in other sources of bipolar outflows. A radius between 2.7 R _* and the corotation radius (6.1 R _*) is derived and a log T _e (K) ?4.7 and log n _e(cm ^?3) = 11.6 are estimated. The belt is clumpy and the most likely source of heating is local X-rays radiation, probably associated with the release of magnetic energy.  相似文献   

Liquidus temperatures of komatiites and the effect of cooling rate on element partitioning between olivine and komatiitic melt     

Paolo A. Sossi  Hugh St. C. O’Neill 《Contributions to Mineralogy and Petrology》2016,171(5):49

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Association of gold with uraninite and pyrobitumen in the metavolcanic rock hosted hydrothermal Au-U mineralisation at Rompas,Peräpohja Schist Belt,northern Finland     

Ferenc Molnár  Harry Oduro  Nick D. J. Cook  Esa Pohjolainen  Ágnes Takács  Hugh O’Brien  Lassi Pakkanen  Bo Johanson  Richard Wirth 《Mineralium Deposita》2016,51(5):681-702

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Normalized evaluation of the performance,capacity and availability of catalogue services: a pilot study based on INfrastruture for SPatial InfoRmation in Europe     

Tomáš Řezník  Radoslav Chudý  Eva Mičietová 《International Journal of Digital Earth》2016,9(4):325-341

Geographic information has a great potential to be re-used when supported by mechanisms for its discovery. Above all, the quality of a catalogue service is the key feature supporting users in the discovery process. So far, there have been in existence various methodologies dealing with the normalized evaluation of quality with respect to catalogue services. Their biggest weakness seems to be in the depth of quality testing, i.e. some influences are beyond the scope of evaluation of these methodologies with respect to quality in catalogue services. In this study, the quality of 45 catalogue services across Europe was verified with the proposed normalized evaluation methodology originating from documents within the INfrastruture for SPatial InfoRmation in Europe (INSPIRE) framework. This paper discusses the (statistical) influence of factors that may significantly change the results of catalogue service testing. The proposals for improving the existing INSPIRE normalized evaluation procedure are applicable for any spatial data infrastructure and/or Digital Earth component using the Open Geospatial Consortium Catalogue Service for the Web as a basis.  相似文献   

Comparison of modelled- and remote sensing- derived daily snow line altitudes at Ulugh Muztagh,northern Tibetan Plateau   总被引：1，自引：0，他引：1  

Marinka SPIESS  Eva HUINTJES  Christoph SCHNEIDER 《山地科学学报》2016,13(4):593-613

The ice cap Ulugh Muztagh in the central Kunlun Shan at the northern fringe of the Tibetan Plateau is a very isolated region with arid cold conditions. No observational, meteorological or glaciological ground truth data is available. Using the Moderate-resolution Imaging Spectroradiometer(MODIS) Level 1 radiance Swath Data(MOD02QKM) with a spatial resolution of 250 m, transient snow lines during the months of July to September in 2001 to 2014 are derived. Results are used to calibrate the physical based Coupled Snowpack and Ice surface energy and Mass balance model(COSIMA). The model runs on a representative detail region of Ulugh Muztagh(UM) on a digital elevation model with the same spatial resolution as the MODIS bands. In the absence of field observations, the model is driven solely by dynamically downscaled global analysis data from the High Asia Refined analysis(HAR). We compare remote sensing derived and modelled mean regional transient snow line altitudes in the course of consecutive summer seasons in 2008 to 2010. The resulting snow line altitude(SLA) and annual equilibrium line altitude(ELA) proxy of both methods coincide very well in their interannual variability in accordance with interannual variability of climatic conditions. Since SLAs of both methods do notconsistently agree on a daily basis a usage of remote sensing derived SLAs for model calibration in the absence of field observation data is only limitedly feasible for daily analysis. ELA approximation using the highest SLA at the end of ablation period may not be applied to UM because the negative winter mass balance(MB) is not reflected in the summer SLA. The study reveals moderate negative MB for UM throughout the modelling period. The mean regional MB of UM accounts for-523±410 mm w.e. a-1 in the modelling period. Hence UM seems not to belong to the area of the ‘Karakorum anomaly' comprising a region of positive mass balances in recent years which has its centre presumably in the Western Kunlun Shan.  相似文献   

The Characteristics of Solar X-Class Flares and CMEs: A Paradigm for Stellar Superflares and Eruptions?     

Louise K. Harra  Carolus J. Schrijver  Miho Janvier  Shin Toriumi  Hugh Hudson  Sarah Matthews  Magnus M. Woods  Hirohisa Hara  Manuel Guedel  Adam Kowalski  Rachel Osten  Kanya Kusano  Theresa Lueftinger 《Solar physics》2016,291(6):1761-1782

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Late Miocene accelerated exhumation of the Daliang Mountains,southeastern margin of the Tibetan Plateau   总被引：2，自引：0，他引：2  

Bin Deng  Shu-gen Liu  Eva Enkelmann  Zhi-wu Li  Todd A. Ehlers  Luba Jansa 《International Journal of Earth Sciences》2015,104(4):1061-1081

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Felsic Magmatic Evolution and the Role of Post-Collisional Process in Continental Crustal Growth at Convergent Margins: Insights from the Western Part of the Central Qilian Belt, Northwestern China     

WANG Chao  LI Rong-She  SMITHIES R. Hugh  LI Meng  PENG Yan 《《地质学报》英文版》2015,89(Z2):92-93

<正>1 Introduction Long-lived early Palaeozoic magmatism in the Qilian orogen,of the Northeastern Tibet Plateau,formed an extensive linear belt of plutonic and volcanic rocks as a result of subduction of the Proto-Tethyan Ocean beneath,and subsequent accretion of resulting arc crust onto,the proto-margin of the North China Craton(NCC)(Song et  相似文献