14. What type of star is the Sun now? A.Red Dwarf star B.Neutron star C.Super Giant star D.Yellow Dwarf star 相关知识点: 试题来源: 解析 D 按光谱类型划分的,太阳的光谱型为G2,属于黄色,“矮”指小或低的意思,也就是说太阳是黄色且光度相对较低的一类. 太阳是一颗黄矮星,黄矮星的寿命大致...
It might be explained by the intense heating from the hot white dwarf and the hot accretion disk of the target. The high mass accretion rate $\\dot{M} = 8imes 10^{-9} M_{\\sun}$ yr$^{-1}$, the broad and single-peaked H$\\alpha$ emission profile, and the presence of an S...
We describe a survey of ancient solar-type stars down to main-sequence effective temperatures Teff ≥ 5300 K and within 42 pc of the Sun. The underlying Gaia-based, volume-complete parent sample consists of 1633 sources, dominated by Population I. The design of the survey is such that ...
Artoria Pendragon (アルトリア・ペンドラゴン, Arutoria Pendoragon?, also romanized as Arturia and Altria), Class Name Saber (セイバー, Seibā?), is one of the main characters of Fate/Zero and one of the three main heroines of Fate/stay night. She is the
Our sun must have rotated more rapidly in its past, as is suggested by observations of many rapidly rotating young solar-type stars. Here we explore ... BP Brown,MK Browning,AS Brun,... - 《Astrophysical Journal》 被引量: 124发表: 2008年 Asteroseismology of Solar-Type and Red-Giant S...
We show that the mass-loss rates of active late-type dwarf stars must be significantly lower than recent estimates of up to 5 × 10 -10 M ⊙ yr -1, 4 orders of magnitude higher than that of the Sun. First, we present aperture-synthesis observations at 3.5 mm of the dMe flare stars...
We report the results of a high-resolution spectroscopic survey of all the stars more luminous than MV = 6.5聽mag within 14.5聽pc from the Sun. The Hipparc... CA Prieto,PS Barklem,DL Lambert,... - 《Astronomy & Astrophysics》 被引量: 202发表: 2004年 Rotational evolution of low mass ...
Massive amounts of magical energy emanate from the Sun Fortress. Da Vinci reveals the corpse of a Demon God who died in the Time Temple is at the castle’s core. Golden Demon Taikou Hideyoshi (Andras) appears and announces the creation of an eternal golden paradise. Nobukatsu proclaims that...
A type definition file, useful for using Cesium with TypeScript - cesium-type-definitions/index.d.ts at master · hnipps/cesium-type-definitions
Sun, J. C., Ma, A. & Lanier, L. L. IL-15-independent NK cell response to mouse cytomegalovirus infection. J. Immunol. 183, 2911–2914 (2009). CAS PubMed PubMed Central Google Scholar Baranek, T. et al. Differential responses of immune cells to type I interferon contribute to host...