Results 11 to 20 of about 300,769 (347)
Giant Star-Shaped Nitrogen-Doped Nanographenes [PDF]
Angewandte Chemie International Edition, 2018 Star-shaped nanographenes are large monodisperse polycyclic aromatic hydrocarbons that extend in size beyond the nanometer and have shown a lot of promise in a wide range of applications including electronics, energy conversion and sensing. Herein we report a new family of giant star-shaped N-doped nanographenes with diameters up to 6.5 nm. Furthermore,
Juan P. Mora‐Fuentes +5 more
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The Astrophysical Journal, 2015 The internal rotation of post-main sequence stars is investigated, in response to the convective pumping of angular momentum toward the stellar core, combined with a tight magnetic coupling between core and envelope. The spin evolution is calculated using model stars of initial mass 1, 1.5 and $5\,M_\odot$, taking into account mass loss on the giant ...
Yevgeni Kissin, Christopher Thompson
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Planets around Giant Stars [PDF]
AIP Conference Proceedings, 2011 8 pages, 6 figures, Part of PlanetsbeyondMS/2010 proceedings http://arxiv.org/html/1011 ...
Quirrenbach, A. +2 more
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Precise radial velocities of giant stars [PDF]
Astronomy & Astrophysics, 2006 Context: Future astrometric missions such as SIM PlanetQuest need very stable reference stars. K giants have large luminosities, which place them at large distances and thus the jitter of their photocenters by companions is relatively small. Therefore K giants would be best suited as references.
Hekker, S. +6 more
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Superflares on Giant Stars [PDF]
Astronomy Reports, 2018 7 pages, 3 figures, 1 table.
Katsova, M.M. +4 more
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Stellar loci IV. red giant stars [PDF]
Research in Astronomy and Astrophysics, 2021 Abstract In the fourth paper of this series, we present the metallicity-dependent Sloan Digital Sky Survey (SDSS) stellar color loci of red giant stars, using a spectroscopic sample of red giants in the SDSS Stripe 82 region. The stars span a range of 0.55 – 1.2 mag in color g – i, –0.3 – –2.5 in metallicity [Fe/H], and have values of ...
Zhang, Ruoyi +5 more
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Journal of Lithic Studies, 2017 Native American myths, legends and oral traditions are rich with stories of giant beings existing in ancient times. They all talk of giant Thunderers or Thunder-beings, giant snakes and great Thunderbirds.
Herman E. Bender
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Kepler-432: a red giant interacting with one of its two long period giant planets [PDF]
, 2015 We report the discovery of Kepler-432b, a giant planet ($M_b = 5.41^{+0.32}_{-0.18} M_{\rm Jup}, R_b = 1.145^{+0.036}_{-0.039} R_{\rm Jup}$) transiting an evolved star $(M_\star = 1.32^{+0.10}_{-0.07} M_\odot, R_\star = 4.06^{+0.12}_{-0.08} R_\odot ...
Aguirre, Victor Silva +31 more
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Monthly Notices of the Royal Astronomical Society: Letters, 2020 ABSTRACT With the spatial resolution of the Atacama Large Millimetre Array (ALMA), dusty galaxies in the distant Universe typically appear as single, compact blobs of dust emission, with a median half-light radius, ≈1 kpc. Occasionally, strong gravitational lensing by foreground galaxies or galaxy clusters has probed spatial scales 1–2 ...
R J Ivison +7 more
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Wobbling Jets in Common Envelope Evolution
The Astrophysical Journal, 2023 We find that the convective motion in the envelopes of red supergiant (RSG) stars supplies a non-negligible stochastic angular momentum to the mass that a secondary star accretes in a common envelope evolution (CEE), such that jets that the secondary ...
Noam Dori, Ealeal Bear, Noam Soker
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