Results 21 to 30 of about 30,122 (121)
The Astrophysical Journal, 2023 We present deep upper limits from the 2014 Murchison Widefield Array Phase I observing season, with a particular emphasis on identifying the spectral fingerprints of extremely faint radio frequency interference (RFI) contamination in the 21 cm power ...
Michael J. Wilensky +9 more
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Turbulent Gas-rich Disks at High Redshift: Bars and Bulges in a Radial Shear Flow
The Astrophysical JournalRecent observations of high-redshift galaxies ( z ≲ 7) reveal that a substantial fraction have turbulent, gas-rich disks with well-ordered rotation and elevated levels of star formation.
Joss Bland-Hawthorn +3 more
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4 open, 2020 The neutron-star collision revealed by the event GW170817 gave us a first glimpse of a possible birthplace of most of our heavy elements. The multi-messenger nature of this historical event combined gravitational waves, a gamma-ray burst and optical ...
Lunney David
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Gravitational lensing reveals cool gas within 10-20 kpc around a quiescent galaxy
Communications PhysicsWhile quiescent galaxies have comparable amounts of cool gas in their outer circumgalactic medium (CGM) compared to star-forming galaxies, they have significantly less interstellar gas.
Tania M. Barone +14 more
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Physics at the University of Lviv since the 17th century until the second world war: Addenda to the bibliography [PDF]
Studia Historiae Scientiarum, 2016 Previously, an attempt was made to compile in a series of papers a complete bibliography of works related to physics at the University of Lviv. The period since the foundation of the University in 1661 until the division of the Chair of Physics in 1872 ...
Andrij Rovenchak, Olena Kiktyeva
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The Astrophysical Journal, 2023 This paper represents an effort to provide robust constraints on the galaxy–halo connection and simultaneously test the Planck ΛCDM cosmology using a fully numerical model of small-scale galaxy clustering.
Gillian D. Beltz-Mohrmann +3 more
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ENSINO DE ASTRONOMIA NO BRASIL - 1850 A 1951 - UM OLHAR PELO COLÉGIO PEDRO II
Ensaio Pesquisa em Educação em Ciências, 2010 The teaching of Astronomy in Brazil is analyzed in the 18 programs of the Pedro II School, relative to the 1841 to 1951 reforms, based on the understanding that the curriculum is the result of a process made up of conflicts and disputes between different
Yassuko Hosoume +2 more
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Probing Binary Architectures of Lithium-rich Giants in GALAH with COSMIC and Stellar Models
The Astrophysical JournalSurface lithium is depleted when a star goes through the first dredge-up phase, yet 1% of red giants are found to be Li rich. The formation mechanism for these remains uncertain. We combine observational constraints from Galactic Archaeology with HERMES (
Maryum Sayeed +7 more
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Optical Color of Type Ib and Ic Supernovae and Implications for Their Progenitors
The Astrophysical Journal, 2023 Type Ib and Ic supernovae (SNe Ib/Ic) originate from hydrogen-deficient massive star progenitors, of which the exact properties are still much debated.
Harim Jin +2 more
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The Astrophysical JournalWe present the discovery of a unique Lyman-continuum (LyC) emitter at z = 3.088. The LyC emission was detected using the Hubble Space Telescope WFC3/UVIS F336W filter, covering a rest-frame wavelength range of 760–900 Å. The peak signal-to-noise ratio of
Anshu Gupta +11 more
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