標(biāo)題: Titlebook: White Dwarfs: Cosmological and Galactic Probes; Edward M. Sion,Stéphane Vennes,Harry L. Shipman Book 2005 Springer Science+Business Media [打印本頁(yè)] 作者: Capricious 時(shí)間: 2025-3-21 18:42
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書目名稱White Dwarfs: Cosmological and Galactic Probes讀者反饋學(xué)科排名
作者: 織布機(jī) 時(shí)間: 2025-3-21 22:17 作者: assail 時(shí)間: 2025-3-22 04:28 作者: accomplishment 時(shí)間: 2025-3-22 06:19
Dark Halo Baryons not in Ancient White Dwarfs?mpact stellar objects in the dark mass is still poorly constrained. Microlensing experiments support the hypothesis that part of the Milky Way dark halo might be made of MACHOs with masses in the range 0.5– 0.8 solar mass. Ancient white dwarfs are generally considered as the most plausible candidate作者: 大廳 時(shí)間: 2025-3-22 10:24 作者: 入會(huì) 時(shí)間: 2025-3-22 13:24
White Dwarfs and Cataclysmic Variables in the FBS Seyferts, white dwarfs, hot subdwarfs, cataclysmic variables, etc. +33°<δ <+45° and +61°<δ<+90° regions at |b|>15° has been covered so far. 1103 blue stellar objects have been selected, including 716 new ones. Observations revealed 17 new white dwarfs and 3 cataclysmic variables, including a new br作者: 浮雕寶石 時(shí)間: 2025-3-22 20:54 作者: cunning 時(shí)間: 2025-3-22 21:12 作者: 修正案 時(shí)間: 2025-3-23 02:31
A Search for Variability in Cool White Dwarf Starswarfs (WDs) with absolute magnitude .. > +15 and color 0.5 < .?. < 1.3. Several hours of continuous observations were obtained for each target in an attempt to establish the frequency of microvariability in the temperature regime where collisionally induced absorption due to molecular hydrogen is po作者: 施舍 時(shí)間: 2025-3-23 09:28
Study of the Galactic Bulge Using New Planetary Nebulae Discovered on the AAO/UKST Hα Surveylge. Such objects are excellent tracers for Bulge dynamical studies, are less affected by metallicity bias and have strong emission lines facilitating accurate velocities. We present preliminary results on plans to exploit these significant new Bulge PNe. Until now the relatively small numbers previ作者: finale 時(shí)間: 2025-3-23 12:29 作者: 小木槌 時(shí)間: 2025-3-23 14:56 作者: 急急忙忙 時(shí)間: 2025-3-23 19:42 作者: LVAD360 時(shí)間: 2025-3-24 01:54 作者: Commemorate 時(shí)間: 2025-3-24 05:42
Kirshner on White Dwarfs, Supernovae, and Cosmologyigate white dwarf stars and binary systems containing white dwarfs. First, a lot of knowledge about the Universe is being hung on Type Ia supernovae. We have no really adequate picture of what stars make them. The class itself may not be a homogeneous class. While no one has definitively identified 作者: conspicuous 時(shí)間: 2025-3-24 07:07
White Dwarfs in Cataclysmic Variables: Probes of Accretion Historyese systems. Spectra from HST, FUSE, and the Sloan Digital Sky Survey reveal the range of temperatures, the rotation rates and the accretion geometries that are linked to the magnetic fields and the ages of the white dwarfs. Identifying these parameters allows us to obtain clues about how the evolut作者: 自傳 時(shí)間: 2025-3-24 11:21 作者: extrovert 時(shí)間: 2025-3-24 16:35 作者: ornithology 時(shí)間: 2025-3-24 23:04
Book 2005eas of the book, white dwarf supernovae, cosmology, accretion physics and galactic structure. The reviews include introductory material that they build upon...The book is suitable and most useful to advanced undergraduates, graduate students and scientific professionals (e.g. astronomers, astrophysicists, cosmologists, physicists). .作者: 云狀 時(shí)間: 2025-3-24 23:41
Spectroscopic and Photometric Observations of White Dwarfs in Globular Clustersly agree within the mutual error bars, the low resolution and S/N of the spectra prevent us from setting constraints stronger than the ones derived from the photometry alone, apart from verifying the hydrogen-rich nature of the targets.作者: BULLY 時(shí)間: 2025-3-25 04:00
Cool Halo White Dwarfs from GSCIIenheimer et al. (2001) result is also provided. The local space density estimated from the two independent samples is about ～ 10 .M⊙pc . and is consistent with the canonical local mass density of the halo WDs.作者: Lumbar-Spine 時(shí)間: 2025-3-25 07:59
The White Dwarf Population in the 2QZ and Sloan Surveysotometric and 2QZ spectroscopic data sets. Our main objectives are to measure the scale-height and luminosity function of the population, determine its formation history and examine evidence for spectral evolutionary effects.作者: antedate 時(shí)間: 2025-3-25 11:57 作者: Incorporate 時(shí)間: 2025-3-25 16:21 作者: 冒煙 時(shí)間: 2025-3-25 20:44
Surveys for Double Degenerate Progenitors of Supernovae Type Iaf the progenitor systems and to perform an observational test of the DD scenario supernovae of type Ia. We explain how parameters of the binaries can be derived from various methods. Results for a sample of DDs are presented and discussed.作者: Generic-Drug 時(shí)間: 2025-3-26 04:00
White Dwarfs in Cataclysmic Variables: Probes of Accretion Historys that are linked to the magnetic fields and the ages of the white dwarfs. Identifying these parameters allows us to obtain clues about how the evolution of single white dwarfs differs from those in close binary environments and how the cooling sequence is affected by the mass transfer.作者: hidebound 時(shí)間: 2025-3-26 06:04 作者: 鐵塔等 時(shí)間: 2025-3-26 09:01 作者: decode 時(shí)間: 2025-3-26 14:44 作者: 蝕刻術(shù) 時(shí)間: 2025-3-26 19:46
Number Counts of White Dwarfs: The Impact of GAIAclude, among others, a reliable determination of the age of our galactic disk, a better knowledge of the structure of the halo of the Milky Way or the reconstruction of the past history of the Star Formation Rate of the galactic disk.作者: coalition 時(shí)間: 2025-3-26 21:41
Dark Halo Baryons not in Ancient White Dwarfs?ithin the magnitude-proper motion range, where such objects can be safely discriminated from any standard population..A robust range of scenarii for a galaxy halo, made of only 3 to 5% in mass of ancient white dwarfs, predicts the detection of 1 to 2 such objects in our survey, if the halo is at lea作者: 彩色 時(shí)間: 2025-3-27 02:07
The Core/Envelope Symmetry in Pulsating White Dwarf Stars show how the signatures of composition transition zones brought about by physically distinct processes may be used to help alleviate this potential ambiguity in our asteroseismological interpretation of the pulsation frequencies.作者: 白楊 時(shí)間: 2025-3-27 06:54
Type Ia Supernovae and Cosmologyge-scale structure surveys, we find a best fit for Ω. and Ω. of 0.28 and 0.72, respectively — essentially identical to the recent . results (and having comparable precision). The sum of the densities, ～ 1.0, agrees with extensive measurements of the cosmic microwave background radiation, including .作者: 發(fā)現(xiàn) 時(shí)間: 2025-3-27 10:07 作者: BRACE 時(shí)間: 2025-3-27 16:15
0067-0057 they build upon...The book is suitable and most useful to advanced undergraduates, graduate students and scientific professionals (e.g. astronomers, astrophysicists, cosmologists, physicists). .978-90-481-6932-0978-1-4020-3725-2Series ISSN 0067-0057 Series E-ISSN 2214-7985 作者: VEIL 時(shí)間: 2025-3-27 20:30 作者: 欲望小妹 時(shí)間: 2025-3-27 22:30
C. Reylé,M. Crézé,V. Mohan,A. C. Robin,J.-C. Cuillandre,O. Le Fèvre,H. J. McCracken,Y. Mellier作者: 過(guò)渡時(shí)期 時(shí)間: 2025-3-28 05:18
Stéphane Vennes,Adéla Kawka,Scott M. Croom,Brian J. Boyle,Robert J. Smith,Tom Shanks,Phil Outram,Lan作者: 黑豹 時(shí)間: 2025-3-28 09:44 作者: 指耕作 時(shí)間: 2025-3-28 14:03 作者: URN 時(shí)間: 2025-3-28 15:05 作者: infelicitous 時(shí)間: 2025-3-28 18:45
dlung des Problems erst m?glich werden lassen. Die Konstruktion von theoretischen Modellen ist typisch für die Physik. Ein . kann man in gewisser Weise mit einer . vergleichen, die das für die aktuelle Fragestellung Wesentliche betont und allen . wegl?sst. Ein Modell ist deshalb stets nur für einen 作者: Euphonious 時(shí)間: 2025-3-29 02:07
D. Carollo,A. Spagna,M.G. Lattanzi,R.L. Smart,B. McLean,S.T. Hodgkin,L. TerranegraBehandlung des Problems erst m?glich werden lassen. Die Konstruktion von.ist typisch für die Physik. Ein . kann man in gewisser Weise mit einer . vergleichen, die das für die aktuelle Fragestellung Wesentliche betont und allen . wegl??t. Ein Modell ist deshalb stets nur für einen bestimmten Problemk作者: interpose 時(shí)間: 2025-3-29 06:36
A.M. Mickaelianl in der Pleuelstange, interessieren in der Regel nicht. Sie sorgen für gewisse . der Teilchen miteinander. Durch diese sind die Bewegungen der Teilchen eines makroskopischen mechanischen Systems im Allgemeinen nicht v?llig frei. Man sagt, sie seien eingeschr?nkt durch gewisse.Zwangskr?fte.作者: 單調(diào)性 時(shí)間: 2025-3-29 08:39 作者: accomplishment 時(shí)間: 2025-3-29 11:55
Dayal Wickramasinghe,Christopher A. Tout,Enik? Reg?s,Jarrod Hurley,Onno Polseküle, wobei der Unterschied zur kinetischen Energie makroskopischer K?rper in der . besteht. Ein Beispiel m?ge dies erl?utern. Bewegt sich ein gasgefüllter Luftballon, so interpretieren wir die Bewegungsenergie des Schwerpunktes als kinetische Energie des makroskopischen Systems. Hinzu kommt dann a作者: Diuretic 時(shí)間: 2025-3-29 16:28
Harry L. Shipmanlen in mehrere unabh?ngige, gew?hnliche Differentialgleichungen zu zerlegen. Man nennt dieses Verfahren ., das wir im übrigen schon an vielen Stellen dieses . angewendet haben. Natürlich lassen sich nicht alle Probleme .. Es gelingt allerdings insbesondere bei Teilchenbewegungen in einem ..作者: 流眼淚 時(shí)間: 2025-3-29 23:18 作者: 勾引 時(shí)間: 2025-3-29 23:59
Paula Szkody,Edward M. Sion,Boris T. G?nsicke. Dabei mu? die verbleibende Variable nicht notwendig die Dimension einer . haben; es kann sich zum Beispiel auch um einen Winkel oder ?hnliches handeln. Wir werden deshalb in diesem Kapitel, um den allgemeineren Aspekt anzudeuten, für die Variable des Potentials stets den für . Koordinaten üblichen作者: 無(wú)所不知 時(shí)間: 2025-3-30 07:55
Astrophysics and Space Science Libraryhttp://image.papertrans.cn/w/image/1027975.jpg作者: SKIFF 時(shí)間: 2025-3-30 11:56
https://doi.org/10.1007/1-4020-3725-2Bulge; Cosmology; Star; Type Ia supernovae; Universe; White dwarf stars; accretion physics; cosmochronology作者: 來(lái)這真柔軟 時(shí)間: 2025-3-30 14:27 作者: 他去就結(jié)束 時(shí)間: 2025-3-30 18:42 作者: ORBIT 時(shí)間: 2025-3-30 21:12
Influence of Metallicity in the Determination of the Age of Halo White DwarfsThe authors study the effect of metallicity on post-AGB evolution and on the properties of remnant cores, and they examine the implications for distinct white dwarf populations in the Galactic disk and in the halo.作者: 襲擊 時(shí)間: 2025-3-31 01:43
How Far Can We Trust Type Ia Supernovae as Standard Candles?We review the various possibilities that have been proposed as progenitors of Type Ia supernovae (SNe Ia) from the point of view of binary evolution and population synthesis. Depending on the nature of the progenitor, there may be systematic effects that cannot be calibrated by local observations that could undermine their use as standard candles.作者: Coma704 時(shí)間: 2025-3-31 08:50
Accretion in Cataclysmic Variable StarsWe consider accretion onto the white dwarfs in cataclysmic variables in relation to nova eruptions, dwarf nova outbursts, hibernation and non-radial oscillations.作者: dictator 時(shí)間: 2025-3-31 11:21
Population Synthesis for Progenitors of Type Ia Supernovaehe rate of SNe Ia ν. ～ 10. yr. both in old and young populations are merging white dwarfs. In young populations (～ 1 Gyr) edge-lit detonations in semidetached systems with nondegenerate helium star donors are also able to support a similar ν.. The estimated current Galactic rate of SN Ia with single-degenerate progenitors is ～ 10. yr..作者: foppish 時(shí)間: 2025-3-31 16:26
alische Problem galt dabei jeweils als gel?st, sobald die Bahnkurve . eines jeden Massenpunktes aus vorgegebenen Kraftgleichungen abgeleitet war. Bei einem makroskopischen Festk?rper mit seinen etwa . Teilchen pro cm. wird das Konzept des Massenpunktes natürlich fragwürdig. Es ist allerdings auch zu作者: 推遲 時(shí)間: 2025-3-31 21:28
D. Carollo,A. Spagna,M.G. Lattanzi,R.L. Smart,B. McLean,S.T. Hodgkin,L. Terranegraalische Problem galt dabei jeweils als gel?st, sobald die Bahnkurve ..(.) eines jeden Massenpunktes aus vorgegebenen Kraftgleichungen abgeleitet war. Bei einem makroskopischen Festk?rper mit seinen etwa 10. Teilchen pro cm. wird das Konzept des Massenpunktes natürlich fragwürdig. Es ist allerdings a作者: 我不怕?tīng)奚?nbsp; 時(shí)間: 2025-4-1 00:01 作者: cancer 時(shí)間: 2025-4-1 03:41 作者: chassis 時(shí)間: 2025-4-1 09:22
Dayal Wickramasinghe,Christopher A. Tout,Enik? Reg?s,Jarrod Hurley,Onno Polsnzuführen. Das wird uns in der Statistischen Mechanik wesentlich glatter gelingen. In der Thermodynamik bleibt es gewisserma?en bei einem gefühlsm??igen Selbstverst?ndnis dieses Begriffs..Der Erste Hauptsatz, den wir in diesem Abschnitt formulieren wollen, macht eine Aussage über das Wesen der W?rme作者: 性別 時(shí)間: 2025-4-1 13:05
Harry L. Shipman wichtigen Beispielen praktische L?sungsmethoden erarbeiten wollen. Das theoretisch-quantenmechanische Grundproblem liegt stets in der L?sung der Schr?dinger-Gleichung, d. h. in dem Eigenwertproblem des Hamilton-Operators. Die Schr?dinger-Gleichung ist im allgemeinen eine partielle Differentialgleic作者: 現(xiàn)代 時(shí)間: 2025-4-1 15:55
