Results 51 to 60 of about 658,780 (159)

The Lyα Sky as Observed by New Horizons at 57 au

The Astronomical Journal
During 2023 September the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyα emission over most of the sky, at a range of ∼56.9 au from the Sun.
G. Randall Gladstone, J. Michael Shull, Wayne R. Pryor, Jonathan Slavin, Joshua A. Kammer, Tracy M. Becker, Tod R. Lauer, Marc Postman, John R. Spencer, Joel Wm. Parker, Kurt D. Retherford, Michael A. Velez, Maarten H. Versteeg, Michael W. Davis, Cynthia S. Froning, Camden D. Ertley, Nathaniel Cunningham, Jayant Murthy, Richard C. Henry, Seth Redfield, Carey M. Lisse, Kelsi N. Singer, Anne J. Verbiscer, Pontus C. Brandt, S. Alan Stern   +24 more
doaj   +1 more source

Turbulence and Diffusive Transport of Cosmic Rays in the Very Local Interstellar Medium

The Astrophysical Journal, 2023
We study the transport of fast charged particles, such as galactic cosmic rays, in the very local interstellar medium (VLISM), which is currently being explored by the two Voyager space probes.
V. Florinski, J. G. Alonso Guzman, J. Giacalone, J. A. le Roux, M. Opher   +4 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, Volume 111, Issue 9, Page 4015-4040, 1 September 2026.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

The practical application of fractal dimension in water treatment practice-the impact of polymer dosing [PDF]

, 2008
The application of floc fractal dimension has been investigated in this work to determine if this parameter can have operational significance in water treatment.
Jefferson, Bruce, Parsons, Simon A., Nixson, Nicholas, Jarvis, Peter, Henderson, Rita Kay   +4 more
core   +1 more source

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

Advanced Materials Interfaces, Volume 13, Issue 16, 18 August 2026.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

Interstellar Scattering of the VELA Pulsar

The Astrophysical Journal, 1974
The frequency dependence of the parameters of interstellar scattering between 837 and 8085 MHz for the Vela pulsar are consistent with thin-screen models of strong scattering. The magnitudes of the parameters indicate an anomalous turbulence along the path when they are compared with results for other pulsars with comparable column densities of free ...
openaire   +1 more source

Ne and Fe Abundances in the Interstellar Medium: Archival Study of Fe-L and Ne-K Edges in Chandra and XMM-Newton

The Astrophysical Journal
The abundance of elements in the interstellar medium is a key facet for many fields of astrophysical study. In the soft X-ray spectra, absorption by interstellar gas can result in deep absorption features that affect continuum measurements. In this paper,
D. L. Moutard, L. R. Corrales, I. Psaradaki, E. Temple, M. Shi   +4 more
doaj   +1 more source

Aharonov–Bohm Effect for Cooper Pairs in Kerr Spacetime: Gravitomagnetic Phase Shifts From Frame Dragging

Annalen der Physik, Volume 538, Issue 8, August 2026.
ABSTRACT The unification of quantum mechanics and general relativity remains a central problem in fundamental physics. Here, we study the gravitomagnetic Aharonov–Bohm (AB) effect for Cooper pairs in Kerr spacetime. Frame‐dragging by a rotating black hole (BH) generates an effective vector potential through the off‐diagonal metric term gtϕ$g_{t\phi }$,
Erdem Sucu, İzzet Sakallı
wiley   +1 more source

Interstellar Scattering And The Einstein Ring PKS 1830-211 [PDF]

Symposium - International Astronomical Union, 1996
The remarkably strong radio gravitational lens PKS 1830-211 consists of a one arcsecond diameter Einstein ring with two bright compact components located on opposite sides of the ring. We have obtained 22 GHz VLBA data on this source to determine the intrinsic angular sizes of the compact components.
D. L. Jones, R. A. Preston, D. W. Murphy, D. L. Meier, D. L. Jauncey, J. E. Reynolds, A. K. Tzioumis   +6 more
openaire   +1 more source

Early Grain Growth in the Young Protostellar Disk HH 212 Supported by Dust Self-scattering Modeling

The Astrophysical Journal
Grain growth in disks around young stars plays a crucial role in the formation of planets. Early grain growth has been suggested in the HH 212 protostellar disk by previous polarization observations.
Ying-Chi Hu, Chin-Fei Lee, Zhe-Yu Daniel Lin, Zhi-Yun Li, John J. Tobin, Shih-Ping Lai   +5 more
doaj   +1 more source