Results 121 to 130 of about 39,097 (209)

Pitch-angle Focusing and Scattering of TeV Galactic Cosmic Rays Propagating in Local Interstellar Magnetic Fields

The Astrophysical Journal
We use Tibet AS γ anisotropy data for 4 TeV cosmic rays to investigate the properties of the pitch-angle focusing and diffusion caused by the interstellar magnetic field and turbulence.
N. D. Maalal, M. Zhang
doaj   +1 more source

Modeling the Optical Colors of Galactic Cirrus Clouds in the Stripe 82 Region

The Astronomical Journal
Observations have shown that the optical colors of Galactic cirrus clouds differ significantly from those of extragalactic sources; thus, they can be used to distinguish Galactic cirrus from extragalactic low surface brightness (LSB) features.
Kwang-Il Seon, Jongwan Ko, Woowon Byun, Jaehyun Lee, Young-Soo Jo   +4 more
doaj   +1 more source

Optical polarimetry of the accreting black hole X-ray binary Swift J1727.8−1613 over the state transition and radio ejections

Astronomy & Astrophysics
We present the first optical (BVR) polarimetric observations of Swift J1727.8−1613 during its 2023–2024 outburst. Observations were performed during the X-ray hard-to-soft state transition, the soft state, and the decaying hard state of the source.
Nitindala Anagha P., Veledina Alexandra, Kravtsov Vadim, Berdyugin Andrei V., Díaz Teodori María Alejandra, Piirola Vilppu, Sakanoi Takeshi, Kagitani Masato, Berdyugina Svetlana V., Poutanen Juri   +9 more
doaj   +1 more source

Scattering of Continuously Injected Pickup Ions of Oblique Pickup Angles in the Outer Heliosheath

The Astrophysical Journal
Pitch angle scattering of pickup ions (PUIs) in the outer heliosheath is studied using two-dimensional hybrid simulations, with the PUIs continuously injected at specified injection rates and pickup angles.
Ding Sheng, Kaijun Liu, Vladimir Florinski, Xiaocheng Guo   +3 more
doaj   +1 more source

A Multilayer Perceptron to Extend and Improve Diatomic Molecule Collision Rate Coefficients

The Astrophysical Journal
A data-driven approach to improve the accuracy of state-resolved molecular collision data for the relaxation of vibrationally and rotationally excited molecules is developed.
Ruihan Wang, Darin E. Mihalik, Benhui Yang, Phillip C. Stancil, Teri J. Price, Robert C. Forrey, Naduvalath Balakrishnan, Roman V. Krems   +7 more
doaj   +1 more source

Pulsar scattering and the ionized interstellar medium

, 2017
Fifty years after the discovery of the first pulsating neutron star, the field of pulsar science has grown into a multidisciplinary research field, working to address a wide range of problems in astrophysics -- from stellar evolution models to high precision tests of General Relativity to analysing the detailed structure of the Interstellar Medium in ...
openaire   +2 more sources

The WIRC+Pol Brown Dwarf Survey: A J-band Polarimetric Survey of 22 Brown Dwarfs

The Astrophysical Journal
We present a near-infrared spectropolarimetric survey of brown dwarfs conducted with the WIRC+Pol instrument on the Palomar 200 inch Hale Telescope. The primary survey goal was to investigate the presence of polarization signatures arising from cloudy ...
Maxwell A. Millar-Blanchaer, Ricky Nilsson, Samaporn Tinyanont, Dimitri Mawet, William Chang, Nemanja Jovanovic, Adric R. Riedel, Heather Knutson, Shreyas Vissapragada, Gautam Vasisht, Sagnick Mukherjee, Tiffany Kataria, Skyler Palatnick, Theodora Karalidi, Aritra Chakrabarty, Paulo A. Miles-Páez, Eugene Serabyn   +16 more
doaj   +1 more source

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

Space Sci Rev
Szalay JR, Provornikova E, Ayari E, Bzowski M, Christian ER, Funsten HO, Galli A, Gkioulidou M, Horányi M, Livi S, McComas DJ, Möbius E, Ogasawara K, Rahmanifard F, Rankin JS, Reisenfeld DB, Schwadron NA, Sternovsky Z, Swaczyna P, Turner D, Zank GP, Zirnstein EJ.   +21 more
europepmc   +1 more source

X-ray and γ-ray beam interstellar communication and implications for SETI. [PDF]

Sci Rep
Beveridge L, Bruhaug G.
europepmc   +1 more source

Investigation of positron scattering from atomic fluorine and fluorine-containing molecules. [PDF]

RSC Adv
Yadav A, Antony B.
europepmc   +1 more source