نتایج جستجو برای: companion events
تعداد نتایج: 337440 فیلتر نتایج به سال:
We report on a total of 20 occultation events of 16 binary sources, observed in the near infrared in the course of routine lunar occultation programs at the TIRGO andCalar Alto observatories. The results consist in either discoveries of new binaries, or in re-observations of known or suspected binaries where only incomplete information was available. This paper is the third in a series of simil...
It has long been known that galaxy interactions are associated with enhanced star formation. In a companion paper, we explored this connection by applying a variety of statistics to SDSS data. In particular, we showed that specific star formation rates of galaxies are higher if they have close neighbours. Here we apply exactly the same techniques to AGN in the survey, showing that close neighbo...
نگارش یک مقاله علمی –پژوهش سازمان یافته و قابل قبول کاملا حائز اهمیت است. بخش بحث و گفتگو در مقالات تحقیقی یافته های تحقیق را گزارش میدهد، نتایج را تفسیر میکند، ودلایل و نقش نظریه ها را توضیح میدهد. هدف این مطالعه تحقیق در مورد چگونگی ساخته شدن ادعاها و توصیه ها و چگونگی تشخیص ریز ساختارها (نقل قولها ، قطعیت نماها ، تعدیل نما ) در بخش بحث مقالات تحقیق است . بدین منظور 40 مقاله از مجلات معتبر زب...
How can di¤erent individualsprobability assignments to some events be aggregated into a collective probability assignment? Although there are several classic results on this problem, they all assume that the agendaof relevant events forms a -algebra, hence, is closed under taking disjunctions (unions) or conjunctions (intersections) of events. This assumption is overly demanding: in practice...
The recently discovered peculiar gamma-ray burst GRB 200826A poses a dilemma for the collapsar model. Although all other characteristics of are consistent with it being Type II (i.e., collapse massive star) event, observed duration event is only approximately 1 s, which at odds predicted allowable timescale range event. To resolve this dilemma, {\it Letter} proposes that original could be an in...
The direct detection of a stellar system that explodes as a Type Ia supernova (SN Ia) has not yet been successful. Various indirect methods have been used to investigate SN Ia progenitor systems but none have produced conclusive results. A prediction of single-degenerate models is that H(or He-) rich material from the envelope of the companion star should be swept up by the SN ejecta in the exp...
Many young, massive stars are found in close binaries. Using population synthesis simulationswe predict the likelihood of a companion star being present when these massive stars end their lives as core-collapse supernovae (SNe). We focus on stripped-envelope SNe, whose progenitors have lost their outer hydrogen and possibly helium layers before explosion. We use these results to interpret new ...
We report the detection of a radial velocity companion to SDSS J091709.55+463821.8, the lowest mass white dwarf currently known with M ∼ 0.17M⊙. The radial velocity of the white dwarf shows variations with a semiamplitude of 148.8 ± 6.9 km s and a period of 7.5936 ± 0.0024 hours, which implies a companion mass of M ≥ 0.28M⊙. The lack of evidence of a companion in the optical photometry forces a...
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