Results 51 to 60 of about 207,817 (216)

Feeding vs Falling. The growth and collapse of molecular clouds in a turbulent interstellar medium

, 2017
In order to understand the origin of observed molecular cloud properties, it is critical to understand how clouds interact with their environments during their formation, growth and collapse.
Ibáñez-Mejía, Juan C., Ralf S. Klessen, Baczynski, C., Juan C. Ibáñez-Mejía, Klessen, R., Mac Low, M., Ibáñez-Mejía, J., Mac Low, Mordecai-Mark, Mordecai-Mark Mac Low, Klessen, Ralf S., Baczynski, Christian, Christian Baczynski   +11 more
core   +1 more source

Clouds, photolysis and regional tropospheric ozone budgets. [PDF]

, 2009
We use a three-dimensional chemical transport model to examine the shortwave radiative effects of clouds on the tropospheric ozone budget. In addition to looking at changes in global concentrations as previous studies have done, we examine changes in ...
Wild, Oliver, Voulgarakis, A., Pyle, J. A., Savage, N. H., Carver, G. D.   +4 more
core   +5 more sources

Mapping Galactic Dust Emission and Extinction with H I, H II, and H2

The Astrophysical Journal
Neutral hydrogen (H i ) emission closely traces the dust column density at high Galactic latitudes and is thus a powerful tool for predicting dust extinction. However, the relation between H i column density N _HI and high-latitude dust emission observed
Yun-Ting Cheng, Brandon S. Hensley, Tzu-Ching Chang, Olivier Doré   +3 more
doaj   +1 more source

Investigation into Triggered Star Formation by Radiative Driven Implosion [PDF]

, 2016
When massive stars form, they emit strong, hydrogen ionising radiation fields into their molecular cloud environment, forming HII regions. This is believed to be capable of inducing effects which can trigger further star formation through a process known
Kinnear, Timothy Michael
core  

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

Boron abundances in diffuse interstellar clouds [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractWe present a comprehensive survey of B abundances in diffuse interstellar clouds from HST/STIS observations along 56 Galactic sight lines. Our sample is the result of a complete search of archival STIS data for the B II λ1362 resonance line, with each detection confirmed by the presence of absorption from other dominant ions at the same ...
Ritchey, A. M., Federman, S. R., Sheffer, Y., Lambert, D. L.   +3 more
openaire   +2 more sources

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, Volume 43, Issue 4, Page 2553-2584, June 2026.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

Complex K: Supernova Origin of Anomalous-velocity H i Structure

The Astrophysical Journal
We address one of the lingering mysteries of high-velocity clouds: If the anomalous negative velocities are the result of the approaching gas from old supernovae, then where are the receding counterparts of the expanding shells?
G. L. Verschuur, J. T. Schmelz, A. Escorza, A. Jorissen   +3 more
doaj   +1 more source

Advancing Heliophysics and Space Weather Modeling Through Open Science

Space Weather, Volume 24, Issue 6, June 2026.
Abstract We present a community‐wide effort to develop a strategy and action plan to advance heliophysics and space weather modeling through open science. While open science has the potential to enhance the quality and pace of scientific discovery, its application to scientific modeling requires more careful consideration regarding open data and open ...
C. Corti, M. M. Kuznetsova, M. A. Reiss, J. Yue, J. Karpen, C. N. Arge, F. Bacchini, C. Bard, S. Bruinsma, R. M. Caplan, L. K. S. Daldorff, P. J. Deka, C. R. DeVore, S. Elvidge, N. Ganushkina, J. D. Huba, B. V. Jackson, V. Jordanova, J. A. Linker, H. Liu, J. G. Luhmann, S. Markidis, P. Mayank, V. Merkin, N. Moens, D. Odstrcil, Y. A. Omelchenko, M. Palmroth, S. Poedts, A. J. Ridley, Y. Shou, V. Tenishev, D. R. Themens, G. Toth, W. Wang, R.‐P. Wilhelm, M. A. Young, B. Cecconi, M.‐Y. Chou, D. De Zeeuw, G. L. Delzanno, C. Didigu, M. El Alaoui, S. Fung, J. Green, Z. Huang, L. K. Jian, L. J. Landwer, M. Lesko, P. MacNeice, A. Masson, M. L. Mays, P. M. Mehta, M. S. Miesch, E. Palmerio, M. Petrenko, E. Provornikova, L. Rastätter, L. Rusaitis, N. Sachdeva, E. Samara, D. Sur, A. Taktakishvili, J. Topper, T. Tsui, C. Verbeke, J. Wang, C. Wiegand, M. Wiltberger, Y. Zheng, M. M. Bisi, M. K. Georgoulis, T. Kodikara, T. Pulkkinen, A. Chartier, D. da Silva, A. Faturahman, K. Garcia‐Sage, D. Kondrashov, V. E. Ledvina, W. Liu, C. Pandey, E. Resnick, C. Shi, R. S. Weigel, K. Whitman, I. Zakharenkova, K. Zhang   +87 more
wiley   +1 more source