Results 41 to 50 of about 1,287,571 (199)

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

High spatial resolution galactic 3D extinction mapping with IPHAS [PDF]

, 2008
We present an algorithm (MEAD, for 'Mapping Extinction Against Distance') which will determine intrinsic (r' - i') colour, extinction, and distance for early-A to K4 stars extracted from the IPHAS r'/ i'/H alpha photometric data base.
R. A. H. Morris, Napiwotzki, Ralf, A. A. Zijlstra, Drew, J. E., Sale, Stuart E., J. E. Drew, N. A. Walton, Phillipps, S., Steeghs, D., P. J. Groot, Gaensicke, B. T., Unruh, Y.C., Morris, R.A.H., S. Phillipps, Groot, P., Sale, S.E., Sale, S. E., R. Napiwotzki, Drew, J.E., Morris, R. A H, M.J. Irwin, C. Knigge, Zijlstra, A.A., Napiwotzki, R., R. Greimel, Morris, R. A. H., Knigge, Christian, Groot, P.J., Gänsicke, B. T., A. Mampaso, Walton, N.A., Unruh, Y. C., Irwin, M. J., Mampaso, A., Knigge, C., Zijlstra, A. A.; id_orcid, Y. C. Unruh, Greimel, R., D. Steeghs, Irwin, M.J., Phillips, S., Gänsicke, B.T., Zijlstra, A. A., Groot, P. J., B. T. Gänsicke, Walton, N. A., Stuart E. Sale   +46 more
core   +3 more sources

Near-discovery Observations of Interstellar Comet 3I/ATLAS with the NASA Infrared Telescope Facility

The Astrophysical Journal Letters
Interstellar objects are comets and asteroids that formed around other stars but were ejected before they could accrete into exoplanets. They therefore represent a rare opportunity to compare the the building blocks of planets in the solar system to ...
Theodore Kareta, Chansey Champagne, Lucas McClure, Joshua Emery, Benjamin N. L. Sharkey, James Bauer, Michael S. Connelley, John Rayner, Cristina A. Thomas, Vishnu Reddy, Megan Firgard   +10 more
doaj   +1 more source

Size Matters: Barrier Heights and Widths in the Kinetics Of Tautomerisation and Rotamerisation of Thiotropolone and Its Five‐ and Three‐Membered Cyclic Analogues

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT Recent experiments by Nunes et al. have demonstrated that unprecedented control of chemical reactions is possible by narrowband infrared vibrational photo‐excitation at low temperatures in inert matrices. The generated higher energy level conformers may then undergo rotamerisation and tautomerisation reactions which provide extremely useful ...
Judith Wurmel, John M. Simmie
wiley   +1 more source

From a Different Star: 3I/ATLAS in the Context of the Ōtautahi–Oxford Interstellar Object Population Model

The Astrophysical Journal Letters
The discovery of the third interstellar object (ISO), 3I/ATLAS (“3I”), provides a rare chance to directly observe a small body from another solar system.
Matthew J. Hopkins, Rosemary C. Dorsey, John C. Forbes, Michele T. Bannister, Chris J. Lintott, Brayden Leicester   +5 more
doaj   +1 more source

Interstellar extinction from photometric surveys: application to four high-latitude areas

Open Astronomy, 2018
Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct cross-identification of objects from various surveys. It yields a
Malkov Oleg, Karpov Sergey, Kilpio Elena, Sichevsky Sergey, Chulkov Dmitry, Dluzhnevskaya Olga, Kovaleva Dana, Kniazev Alexei, Mickaelian Areg, Mironov Alexey, Murthy Jayant, Sytov Alexey, Zhao Gang, Zhukov Aleksandr   +13 more
doaj   +1 more source

Cis–Trans Rotational Isomerism of Formic Acid, Sulfur, and Selenium Analogues and Their Dimers: Chemical Kinetics Under Interstellar Conditions

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT We present chemical kinetic rate constants for the cis to trans isomerisation or rotamerization of monomeric seleno‐, thio‐, and formic acids and that of three of their dimeric species, based on variational transition state theory and multidimensional tunneling calculations in the gas‐phase, from 10 K to 300 K. These provide, firstly, reliable
Judith Wurmel, John M. Simmie
wiley   +1 more source

The interstellar object significance scale (Loeb Scale): astronomical classification of interstellar objects

International Journal of Astrobiology
Abstract The Vera C. Rubin Observatory is expected to increase interstellar object (ISO) detections from a few over the past decade to potentially one per few months, demanding a systematic classification scheme. We present the Interstellar Object Significance Scale (IOSS), also known in the literature as the Loeb Scale, a 0–10 ...
Omer Eldadi, Gershon Tenenbaum, Abraham Loeb   +2 more
openaire   +1 more source

A Portrait throughout Perihelion of the NH2-rich Interstellar Comet 2I/Borisov

The Planetary Science Journal
The interstellar comet 2I/Borisov is the first interstellar object where compositional characterisation was possible throughout its entire perihelion passage.
Sophie E. Deam, Michele T. Bannister, Cyrielle Opitom, Matthew M. Knight, Léa Ferellec, Ryan Ridden-Harper, Darryl Z. Seligman, Alan Fitzsimmons, Aurélie Guilbert-Lepoutre, Emmanuel Jehin, Laurent Jorda, Michael Marsset, Youssef Moulane, Philippe Rousselot, Pierre Vernazza, Bin Yang   +15 more
doaj   +1 more source

Proximity Proteomics Maps Candidate Cellular Uptake Pathways for Cell‐Derived Nanovesicles

Small Methods, EarlyView.
TurboID‐based dual‐sided proteomics compares mechanically generated cell‐derived nanovesicles with naturally secreted small extracellular vesicles. Vesicle proteomes define candidate interaction signatures, while recipient‐cell proximity labelling identifies exposure‐associated proteins.
Eisuke Kanao, Ryosuke Mizuta, Saki Tarao, Yukika Hara, Yuka Li, Kazunari Akiyoshi, Yasushi Ishihama, Koshi Imami, Yoshihiro Sasaki   +8 more
wiley   +1 more source