Results 71 to 80 of about 419,985 (168)

Origin of the Twice-90° Rotations of the Polarization Angle in GRB 170114A and GRB 160821A

The Astrophysical Journal
The observed abrupt twice-90° rotations of the polarization angle (PA) in the prompt phase of gamma-ray bursts (GRBs) are difficult to understand within the current one-emitting-shell models.
Xu Wang, Mi-Xiang Lan, Qing-Wen Tang, Xue-Feng Wu, Zi-Gao Dai   +4 more
doaj   +1 more source

Synchrotron Polarization of a Hybrid Distribution of Relativistic Thermal and Nonthermal Electrons in Gamma-Ray Burst Prompt Emission

The Astrophysical Journal
Synchrotron polarization of relativistic nonthermal electrons in gamma-ray bursts (GRBs) has been widely studied. However, recent numerical simulations of relativistic shocks and magnetic reconnection have found that a more realistic electron ...
Cheng Kangfa, Jirong Mao, Zhao Xiaohong, Liu Hongbang, Merlin Kole, Nicolas Produit, Chen Zhifu   +6 more
doaj   +1 more source

A framework for untangling the consequences of artificial light at night on species interactions. [PDF]

Philos Trans R Soc Lond B Biol Sci, 2023
Seymoure B, Dell A, Hölker F, Kalinkat G.   +3 more
europepmc   +1 more source

The O₂ A-Band in the Fluxes and Polarization of Starlight Reflected by Earth-Like Exoplanets

, 2017
Earth-like, potentially habitable exoplanets are prime targets in the search for extraterrestrial life. Information about their atmospheres and surfaces can be derived by analyzing the light of the parent star reflected by the planet.
Fauchez, Thomas, Thomas Fauchez, Stam, Daphne M., Rossi, L.C.G. (author), Stam, D.M. (author), Fauchez, Thomas (author), Rossi, Loic, Daphne M. Stam, Loic Rossi   +8 more
core   +1 more source

OH Maser Polarimetric Observations of Planetary Nebulae

The Astrophysical Journal
We present full-polarization observations of the four ground-state transitions of OH, carried out with the Australia Telescope Compact Array toward two very young planetary nebulae (PNe), IRAS 16333−4807 and IRAS 17393−2727. We detect Zeeman splitting in
L. Uscanga, M. D. Gray, J. F. Gómez, J. A. Green, K. Asanok, L. F. Miranda, M. A. Trinidad, G. Anglada, P. Boumis   +8 more
doaj   +1 more source

Upconversion Luminescence Response of a Single YVO₄:Yb, Er Particle. [PDF]

Micromachines (Basel), 2023
Zharkov DK, Leontyev AV, Shmelev AG, Nurtdinova LA, Nurtdinova LA, Chuklanov AP, Nurgazizov NI, Nikiforov VG.   +7 more
europepmc   +1 more source

B-fields and Dust in Interstellar Filaments Using Dust Polarization (BALLAD-POL). IV. Grain Alignment Mechanisms in the Cocoon Nebula (IC 5146) Using Polarization Observations from JCMT/POL-2

The Astrophysical Journal
The polarization of starlight and thermal dust emission from aligned nonspherical grains provides a powerful tool for tracing magnetic field morphologies and strengths in the diffuse interstellar medium to star-forming regions, and constraining the ...
Saikhom Pravash, Thiem Hoang, Archana Soam, Eun Jung Chung, Diep Ngoc Pham, Nguyen Bich Ngoc, Le Ngoc Tram   +6 more
doaj   +1 more source

Synchrotron Circular Polarization in Gamma-Ray Burst Prompt Optical Emission: Relativistic Thermal Electron Contribution

The Astrophysical Journal
Synchrotron circular polarization of a nonthermal power-law electron distribution in gamma-ray bursts (GRBs) has been studied. However, some numerical simulations have shown that the resulting distribution of electrons is a combination of a thermal ...
Kangfa Cheng, Jirong Mao, Xiaohong Zhao, Hongbang Liu, Zhegeng Chen, Gaojin Yu, Zhifu Chen   +6 more
doaj   +1 more source

Extreme Starlight Polarization Efficiency toward ζ Ophiuchi: A Case for Line-of-sight Foreground Subtraction

The Astronomical Journal
Despite the pervasive nature of interstellar dust and its impact on nearly all observations, most dust corrections employ line-of-sight averages over large angular scales.
Jordan A. Bartlett, Henry A. Kobulnicky
doaj   +1 more source

Uncovering the chiral bias of meteoritic isovaline through asymmetric photochemistry. [PDF]

Nat Commun, 2023
Bocková J, Jones NC, Topin J, Hoffmann SV, Meinert C.   +4 more
europepmc   +1 more source