Results 51 to 60 of about 41,542 (217)

Physical Structure of Small Wolf-Rayet Ring Nebulae [PDF]

, 1998
We have selected the seven most well-defined WR ring nebulae in the LMC (Br 2, Br 10, Br 13, Br 40a, Br 48, Br 52, and Br 100) to study their physical nature and evolutionary stages. New CCD imaging and echelle observations have been obtained for five of
Breysacher J., Chu Y.-H., Chu Y.-H., Conti P. S., Davies R. D., Donald R. Garnett, Esteban C., Garcia-Segura G., Garcia-Segura G., Haynes R. F., Henize K. G., Hutsemekers D., Kerstin Weis, Langer N., Rosado M., Shaver P. A., Smith L. J., Smith L. J., Solf J., van der Hucht K. A., Weis K., Weis K., You-Hua Chu   +22 more
core   +2 more sources

Two Types of q$$ q $$‐Gaussian Distributions Used to Study the Diffusion in a Finite Region

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this work, we explore both the ordinary q$$ q $$‐Gaussian distribution and a new one defined here, determining both their mean and variance, and we use them to construct solutions of the q$$ q $$‐deformed diffusion differential equation. This approach allows us to realize that the standard deviation of the distribution must be a function of
Won Sang Chung, L. M. Nieto, Soroush Zare, Hassan Hassanabadi   +3 more
wiley   +1 more source

University Scholar Series: Michael Kaufman [PDF]

, 2015
H2O in Interstellar Space: How the Universe Conspires to Make Water Everywhere On October 28, 2015, Dr. Michael Kaufman spoke in the University Scholar Series hosted by Provost Andy Feinstein at the Dr. Martin Luther King, Jr. Library.
Kaufman, Michael
core   +1 more source

An Investigation of Disk Thickness in M51 from Hα, Paα, and Mid-infrared Power Spectra

The Astrophysical Journal
Power spectra (PS) of high-resolution images of M51 (NGC 5194) taken with the Hubble Space Telescope and the James Webb Space Telescope (JWST) have been examined for evidence of disk thickness in the form of a change in slope between large scales, which ...
Bruce G. Elmegreen, Daniela Calzetti, Angela Adamo, Karin Sandstrom, Daniel Dale, Varun Bajaj, Martha L. Boyer, Ana Duarte-Cabral, Ryan Chown, Matteo Correnti, Julianne J. Dalcanton, Bruce T. Draine, Brandt Gaches, John S. Gallagher III, Kathryn Grasha, Benjamin Gregg, Leslie K. Hunt, Kelsey E. Johnson, Robert Kennicutt Jr., Ralf S. Klessen, Adam K. Leroy, Sean Linden, Anna F. McLeod, Matteo Messa, Göran Östlin, Mansi Padave, Julia Roman-Duval, J. D. Smith, Fabian Walter, Tony D. Weinbeck   +29 more
doaj   +1 more source

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, EarlyView.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

3D dynamical evolution of the interstellar gas in the Gould Belt [PDF]

Astronomy & Astrophysics, 2003
15 pages, 9 figures, accepted for publication in Astronomy & ...
Isabelle Grenier, C. Perrot
openaire   +4 more sources

Comparing simulated $^{26}$Al maps to gamma-ray measurements [PDF]

, 2019
© ESO 2019.Context. The diffuse gamma-ray emission of $^{26}{\rm Al}$ at 1.8 MeV reflects ongoing nucleosynthesis in the Milky Way, and traces massive-star feedback in the interstellar medium due to its 1 Myr radioactive lifetime.
Diehl, Roland, Fujimoto, Yusuke, Greiner, Jochen, Krause, Martin G. H., Krumholz, Mark R., Pleintinger, Moritz M. M., Siegert, Thomas   +6 more
core   +3 more sources

Implication of the Velocity Dispersion Scalings on High-mass Star Formation in Molecular Clouds

The Astronomical Journal
This paper is aimed at exploring the implications of velocity-dispersion scalings on high-mass star formation in molecular clouds, including the scalings of Larson’s linewidth–size ( σ – R ) and ratio–mass surface density ( ${ \mathcal L }$ – Σ; here ${ \
An-Xu Luo, Hong-Li Liu, Sheng-Li Qin, Dong-ting Yang, Sirong Pan   +4 more
doaj   +1 more source

MgO surface lattice phonons observation during interstellar ice transition

Scientific Reports, 2021
Relevant information on the origins of the solar system and the early evolution of life itself can be derive from systematic and controlled exploration of water ice here on Earth.
A. Chavarría-Sibaja, S. Marín-Sosa, E. Bolaños-Jiménez, M. Hernández-Calderón, O. A. Herrera-Sancho   +4 more
doaj   +1 more source

The futuristic manifolds of REM sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since one of its first descriptions 70 years ago, rapid eye movement sleep has continually inspired and excited new generations of sleep researchers. Despite significant advancements in understanding its neurocircuitry, underlying mechanisms and microstates, many questions regarding its function, especially beyond the early neurodevelopment ...
Liborio Parrino, Ivana Rosenzweig
wiley   +1 more source