The Interstellar Medium In Galaxies Seen A Billion Years After The Big Bang [PDF]
, 2015 Evolution in the measured rest frame ultraviolet spectral slope and ultraviolet to optical flux ratios indicate a rapid evolution in the dust obscuration of galaxies during the first 3 billion years of cosmic time (z>4).
P. Capak +13 more
semanticscholar +1 more source
Discovery of a Long Thermonuclear X-Ray Burst from the Ultracompact Binary 4U 1850–087
The Astrophysical JournalWe report the detection of a long X-ray burst from the ultracompact binary 4U 1850–087. The type I X-ray burst was observed on MJD 60171.65 by the Monitor of All-sky X-ray Image and Neutron Star Interior Composition Explorer (NICER). We analyze the NICER
Yongqi Lu +4 more
doaj +1 more source
The Interaction of Relativistic Spacecrafts with the Interstellar Medium [PDF]
, 2016 The Breakthrough Starshot initiative aims to launch a gram-scale spacecraft to a speed of v ∼ 0.2c, capable of reaching the nearest star system, α Centauri, in about 20 years.
Thiem C. Hoang +3 more
semanticscholar +1 more source
The galactic environment of the Sun [PDF]
, 1999 The interstellar cloud surrounding the solar system regulates the galactic environment of the Sun and constrains the physical characteristics of the interplanetary medium.
Frisch, P. C.
core +3 more sources
Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles?
Angewandte Chemie International Edition, EarlyView.A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Rahel Arns +6 more
wiley +1 more source
OO Leo: An Active Contact Binary with Possible Solar-like Differential Rotation
The Astrophysical JournalWith Transiting Exoplanet Survey Satellite (TESS) high-precision photometry and Large Sky Area Multi-object Fiber Spectroscopic Telescope medium-resolution spectra, we present the first light and radial velocity curve analyses for the eclipsing binary OO
Zi-Bin Meng +4 more
doaj +1 more source
Supersonic turbulence and structure of interstellar molecular clouds [PDF]
, 2002 The interstellar medium (ISM) provides a unique laboratory for highly supersonic, driven hydrodynamics turbulence. We present a theory of such turbulence, confirm it by numerical simulations, and use the results to explain observational properties of ...
B. Dubrulle +28 more
core +2 more sources
Chemical Properties of an Aryloxenium Cation with a Triplet Electronic Ground State
Chemistry – A European Journal, Accepted Article.Aryloxenium cations contain a formally positively‐charged, monovalent oxygen atom with an incomplete electron shell. In spite of this unusual structural element, they are key intermediates in many important processes, such as biological oxidation reactions and the industrial generation of thermoplastics.
Tuong V. Nguyen +2 more
wiley +1 more source
Quenching and Recovery of Persistent X-Ray Emission during a Superburst in 4U 1820–30
The Astrophysical JournalWe report the superburst from 4U 1820–30 in 2021 observed by the Monitor of All-sky X-ray Image and Neutron star Interior Composition Explorer (NICER).
Zhijiao Peng +8 more
doaj +1 more source
On the Deuterium-to-hydrogen Ratio of the Interstellar Medium [PDF]
, 2016 Observational studies show that the global deuterium-to-hydrogen ratio in the local interstellar medium (ISM) is about 90% of the primordial ratio predicted by Big Bang nucleosynthesis.
D. Weinberg
semanticscholar +1 more source