Results 71 to 80 of about 104,518 (171)

Quasiperiodic Oscillations in GRB 210514A: a Case of a Newborn Supramassive Precessing Magnetar Collapsing into a Black Hole?

The Astrophysical Journal
Magnetar is proposed as one of the possible central engines for a gamma-ray burst (GRB). Recent studies show that if a magnetar has a rotational axis misaligned from the magnetic one, a periodic lightcurve pattern is expected with a period of seconds to ...
Le Zou, Ji-Gui Cheng
doaj   +1 more source

Ph2SCCO: A New Versatile CCO‐Fragment Transfer Reagent

Angewandte Chemie International Edition, Volume 64, Issue 47, November 17, 2025.
The synthesis, isolation, and full characterization of the unprecedented heterocumulene Ph2SCCO is presented. Starting from simple precursors, Ph2SCCO provides direct access to the valuable class of (bicyclic) α‐cyclopropylcarbonyl compounds. It has emerged from our reactivity studies as an excellent reagent for the CCO fragment transfer in organic ...
Qiu Sun, Julian Hauda, David Tymann, Patrick W. Antoni, Richard Goddard, Max M. Hansmann   +5 more
wiley   +1 more source

Atomistic Modeling of Methyl Formate and Glycolaldehyde Formation on Interstellar Dirty Ice Mantles via a “Radical + Ice” Mechanism

ChemPlusChem, Volume 90, Issue 11, November 10, 2025.
The presence of interstellar complex organic molecules (COMs) has been baffling astrochemists for a long time. Methyl formate and glycolaldehyde are widely detected but their abundances mismatch kinetic astrochemical model predictions. Here, the formation of these two COMs is characterized onto a mixed ice surface, highlighting the importance of ...
Jessica Perrero, Stefano Pantaleone, Piero Ugliengo, Albert Rimola   +3 more
wiley   +1 more source

The Structure of the Local Interstellar Medium. VII. Additional New Mg ii, Fe ii, and Mn ii Observations toward Stars within 100 pc

The Astrophysical Journal
We present new high-resolution ( R  ∼ 114,000), near-ultraviolet spectra in the direction of 36 nearby (
Azmain H. Nisak, Seth Redfield, Jeffrey L. Linsky, Brian E. Wood, Allison Youngblood   +4 more
doaj   +1 more source

The Microarcsecond Sky and Cosmic Turbulence

, 2004
Radio waves are imprinted with propagation effects from ionized media through which they pass. Owing to electron density fluctuations, compact sources (pulsars, masers, and compact extragalactic sources) can display a wide variety of scattering effects ...
A.G. de Bruyn, Armstrong, Bertsch, Bignall, Bloemen, Charnotskii, Claussen, Clegg, Codona, Coles, Cordes, Cordes, Cordes, Cordes, Cornwell, Dennett-Thorpe, Dennett-Thorpe, Dennett-Thorpe, Fiedler, Goldreich, Goldreich, Haffner, Hall, Harmon, Haverkorn, Heeschen, Hunter, J.-P. Macquart, J.M. Cordes, Jauncey, Jokipii, Jokipii, Jorstad, Kedziora-Chudczer, Lazio, Lazio, Lazio, Lithwick, Lithwick, Lovell, Macquart, McIvor, Minter, Minter, Ng, Oegerle, Palmer, Quirrenbach, Readhead, Readhead, Richter, Rickett, Rickett, Rickett, Rickett, Rogers, Romani, Savage, Sembach, Simonetti, Spangler, Spangler, Sridhar, Stinebring, Strong, T. Joseph W. Lazio, Tripp, Trotter, Vermeulen, Wilkinson, Witzel, Wolszczan, Yusef-Zadeh, Zensus   +73 more
core   +3 more sources

Detection of the buckminsterfullerene cation (C60+) in space

, 2013
In the early 90s, C60+ was proposed as the carrier of two diffuse interstellar bands (DIBs) at 957.7 and 963.2 nm, but a firm identification still awaits gas-phase spectroscopic data.
Berné, Berné, C. Joblin, G. Mulas, Joblin, Leger, Montillaud, Moutou, O. Berné, Pilleri, Rapacioli   +10 more
core   +2 more sources

Science of omics: a molecular space odyssey

Experimental Physiology, EarlyView.
Salomé Coppens, Christophe Hirtz, Margaux Vignon, Damian M. Bailey   +3 more
wiley   +1 more source

Transport of positrons in the interstellar medium [PDF]

, 2007
This work investigates some aspects of the transport of low-energy positrons in the interstellar medium (ISM). We consider resonance interactions with magnetohydrodynamic waves above the resonance threshold.
Ferriere, K., Gillard, W., Jean, P., Marcowith, A.   +3 more
core   +3 more sources

Reaction Networks For Interstellar Chemical Modelling: Improvements and Challenges

, 2010
We survey the current situation regarding chemical modelling of the synthesis of molecules in the interstellar medium. The present state of knowledge concerning the rate coefficients and their uncertainties for the major gas-phase processes -- ion ...
Agundez, M., Cuppen, H. M., Geppert, W., Herbst, E., Linnartz, H., Loison, J. C., Oberg, K., Pernot, P., Roueff, E., Smith, I. W. M., Talbi, D., Troe, J., Wakelam, V.   +12 more
core   +3 more sources

Multiphase turbulent interstellar medium: some recent results from radio astronomy

, 2015
The radio frequency 1.4 GHz transition of the atomic hydrogen is one of the important tracers of the diffuse neutral interstellar medium. Radio astronomical observations of this transition, using either a single dish telescope or an array interferometer,
Roy, Nirupam
core   +2 more sources