Results 91 to 100 of about 1,062,764 (241)
The Powerful Shocks in RS Oph: NuSTAR X-Ray Data and a Complete Review
The Astrophysical JournalIn the 2021 outburst of RS Ophiuchi, the gamma-ray and the X-ray flux were measured quasi-simultaneously from day 1 after the optical peak, offering the first comprehensive view of shocks in a nova occurring in a symbiotic system. We present a previously
Marina Orio +6 more
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SPECTROSCOPIC MONITORING OF THE B[E] OBJECTS FSCMA AND MOCAM
Odessa Astronomical Publications, 2019 Objects with the B[e] phenomenon exhibit permitted and forbidden emission lines due to the presence of circumstellar ionized gas and large infrared excesses due to processing of the stellar radiation by circumstellar dust.
A. K. Kuratova +10 more
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Sustainable Development, EarlyView.ABSTRACT Integrating eco‐design practices in product development from the start is essential for fashion accessories like bags and backpacks, which involve complex manufacturing, diverse materials, and strong socio‐cultural meanings. Building on this premise and drawing from the Lifecycle Design Strategy Wheel, this study aims to characterize the eco ...
Francesco Paolo Lagrasta +2 more
wiley +1 more source
Geometric Correction for Wind Accretion in Binary Systems
The Astrophysical JournalThe Bondi–Hoyle–Lyttleton (BHL) accretion model is widely used to describe how a compact object accretes material from a companion's stellar wind in binary systems.
Emilio Tejeda, Jesús A. Toalá
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Sustainable Development, EarlyView.ABSTRACT The circular economy (CE) is increasingly promoted as a strategy for addressing environmental degradation and resource inefficiencies. Despite growing policy support, CE implementation remains fragmented in many resource‐intensive industries, particularly in emerging economies. This study investigates barriers to CE adoption in China's textile
Muhammad Shahjahan Usmani
wiley +1 more source
Ultraviolet spectroscopy of old novae and symbiotic stars [PDF]
, 1981 The IUE spectra are presented for two old novae and for two of the symbiotic variables. Prominent emission line spectra are revealed as a continuum whose appearance is effected by the system inclination.
Ferland, G. J. +3 more
core
Ancient Nova Shells of RX Pup Indicate Evolution of Mass Transfer Rate
The Astrophysical Journal LettersRX Pup is a symbiotic binary that experienced a nova outburst in the 1970s. Here we report a discovery of a ∼1300 yr old nova shell around the system and a possible detection of a ∼7000 yr old nova shell. Together with the nova shell ejected in the 1970s,
Krystian Iłkiewicz +4 more
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History, EarlyView.Abstract During the 1960s, Mexico's Institutional Revolutionary Party (PRI) embraced Chinese overtures for a commercial opening as consistent with its anti‐imperialist posture, thereby foreshadowing the diplomatic opening to China in 1972. Yet this professed ideological pluralism was eclipsed by an underlying allegiance to the United States' anti ...
YIXIN TIAN
wiley +1 more source
Pre-nova Observations of T CrB: A View from the CHARA Array
The Astrophysical Journal LettersT Coronae Borealis (T CrB, HD 143454) is a symbiotic recurrent nova consisting of a red giant and white dwarf with recent eruptions in 1866 and 1946 and an anticipated eruption in the mid-2020s.
Ryan Norris +40 more
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International Journal of Urban and Regional Research, EarlyView.Abstract From desert ski resorts to subtropical Winter Games, there is a global proliferation of ‘mission‐impossible’ mega‐projects. The prevailing frameworks of city branding and urban entrepreneurism fail to explain the political logics behind these seemingly irrational projects.
Yiqiu Liu, Sven Daniel Wolfe
wiley +1 more source