[PDF] Top 20 La Estrategia de Seguridad Nacional de Estados Unidos de 2006
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Light variations of massive stars (alpha Cyg variables). XV. The LMC supergiants R99 (LBV), R103, R123 (LBV) and R128
... the light and colour curves (in log intensity scale) as a function of Julian Date during two months in ...the variations is of the order of a few ...maximum light and red at minimum light, ... See full document
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Light variations of massive stars (alpha Cyg variables). XVIII. The B[e] supergiants S 18 in the SMC and R 66 = HDE 268835 and R 126 = HD 37974 in the LMC
... the light minimum of 1987 and the number 2 the average of the two maxima of 1987 and 1989 ...minimum light of the ∼ 2 y oscillation is ob- vious from the wide distance between extrema “a” and “d” in the two ... See full document
17
HIPPARCOS photometry of 24 variable massive stars (alpha Cygni variables)
... The light curve has been described by van Genderen et ...micro variations noticed during the rise to maximum bright- ness of other LBVs (in Paper I they are called the 100 d–type micro ... See full document
10
Identification of a population of X ray emitting massive stars in the galactic plane
... Ofpe/WN9 stars, the broadness of this line and the He I feature are both reminiscent of an early-type WN star (WNE) of the WN4–6 variety (Figer et ...WNE stars are up to two magnitudes fainter than Ofpe/WN9 ... See full document
119
The Cognitive Structures of Turkish Pre servise Teachers in Relation to the Concept of Light
... The word association test consists of 2 stages. During the first stage of the independent word association test, the participants were asked to write down the concepts which were evoked by the stimulant word during a ... See full document
14
Stellar winds near massive black holes - the case of the S-stars
... To simulate accretion, we make use of the concept of a sink particle. Any gas particles that pass within the accretion radius of the sink particle are considered to be accreted. Their mass, linear and angular momenta are ... See full document
7
Analytical Approximation to the Dynamics of a Binary Stars System with Time Depending Mass Variation
... consideration. This means that we will only consider the transference of mass between the two stars. With respect an inertial reference system (fixed with respect the fixed Galaxies), the non relativistic motion ... See full document
7
Structure and evolution of the envelopes of deeply embedded massive young stars
... in massive young stellar objects, non- thermal pressure is more important for the support against gravitational collapse, while thermal pressure dominates for low-mass ... See full document
36
Self-gravitating disc candidates around massive young stars
... There have been several recent detections of candidate Keplerian discs around massive young protostars. Given the relatively large disc-to-star mass ratios in these systems, and their young ages, it is worth ... See full document
21
On the Ultimate Fate of Massive Neutron Stars in an Ever Expanding Universe
... of massive neutron stars (-MANs) to be much larger than the nuclear ...neutron stars, whose masses are between two and five solar masses have ever been ...of stars shortly after the Big ... See full document
159
Exceptionally massive and bright, the earliest stars changed the course of cosmic history
... of stars. In contrast, the stars that arise from molecular gas clouds are born in complex environments that have been altered by the effects of previ- ous star ... See full document
5
Gravitational Higgs Mechanism in Inspiraling Scalarized NS WD Binary
... In NS-WD binary, a spontaneous scalarization, in analogy with the sponta- neous magnetization in ferromagnet, tends to occur for the massive NS [5], which changes the microphysics in the interior of NS and ... See full document
18
The earliest fragmentation in molecular clouds : and its connection to star formation
... Observationally it is hard to be sure which structures will gravitationally decouple from their environment and are hence ‘pre-stellar’ in nature (i.e. will form stars in their future). Observations of molecular ... See full document
167
Ground-based exploration of the outer Solar system by serendipitous stellar occultations
... other stars, and provides some clues on the comet belt observed around the β-Pictoris system, and rings or disc-like features akin to Kuiper belts around other young ... See full document
28
On the Light Massive Flavor Dependence of the Top Quark Mass
... of massive quarks lighter than Q with the main focus on the top ...lighter massive quarks and the momentum regions between them and also to precisely control the large order asymptotic ... See full document
8
MASSIVE MIMO TECHNOLOGY FOR VISIBLE LIGHT COMMUNICATION (VLC)
... Visible Light Communications (VLC), and the idea of using LEDs for both illumination and data communications The main drivers for this technology include the increasing popularity of solid-state lighting, longer ... See full document
5
Self gravitating disc candidates around massive young stars
... is the inferred dust temperature. We adopt the same opacity law and dust temperature as used for each observation, and we also adopt a common observer assumption that the disc is optically thin, which is unlikely to be ... See full document
158
The Role of Stellar Feedback in Star Cluster Formation
... unbound stars generally remain, which arise from the same underlying continuum of stellar ...of stars that are born within gravitationally-bound star clusters is related to the overall cloud star formation ... See full document
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8-12-2013 12:00 AM The atmospheric chemistry of magnetic Bp stars
... the variations quite closely mimic the variations observed in the star’s iron lines ...the variations occur within ±200 km/s of line ...in stars with dominant dipolar ...other stars ... See full document
27
Classification of variable stars in the WFCAM Transit Survey
... The studies of variable stars have been one of the main fields of research in astronomy. In recent years, time-resolved photometric surveys have marked a memorable boom in time-domain astronomy. Projects such as ... See full document
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