Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Henning T Schmidt"'
Autor:
Mark H. Stockett, James N. Bull, Henrik Cederquist, Suvasthika Indrajith, MingChao Ji, José E. Navarro Navarrete, Henning T. Schmidt, Henning Zettergren, Boxing Zhu
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-4 (2024)
Externí odkaz:
https://doaj.org/article/b9e71d1806834eba8018a237e9189611
Autor:
Mark H. Stockett, James N. Bull, Henrik Cederquist, Suvasthika Indrajith, MingChao Ji, José E. Navarro Navarrete, Henning T. Schmidt, Henning Zettergren, Boxing Zhu
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract After decades of searching, astronomers have recently identified specific Polycyclic Aromatic Hydrocarbons (PAHs) in space. Remarkably, the observed abundance of cyanonaphthalene (CNN, C10H7CN) in the Taurus Molecular Cloud (TMC-1) is six or
Externí odkaz:
https://doaj.org/article/76a69a384a9043afa1fbe1f6842b31f2
Autor:
Moa K. Kristiansson, Kiattichart Chartkunchand, Gustav Eklund, Odd M. Hole, Emma K. Anderson, Nathalie de Ruette, Magdalena Kamińska, Najeeb Punnakayathil, José E. Navarro-Navarrete, Stefan Sigurdsson, Jon Grumer, Ansgar Simonsson, Mikael Björkhage, Stefan Rosén, Peter Reinhed, Mikael Blom, Anders Källberg, John D. Alexander, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt, Dag Hanstorp
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
High-precision measurements are useful to find isotopic shifts and electron correlation. Here the authors measure electron affinity and hyperfine splitting of atomic oxygen with higher precision than previous studies.
Externí odkaz:
https://doaj.org/article/1148f9adc2aa4be4b1a0871f4639fa17
Autor:
Michael Gatchell, Naemi Florin, Suvasthika Indrajith, José Eduardo Navarro Navarrete, Paul Martini, MingChao Ji, Peter Reinhed, Stefan Rosén, Ansgar Simonsson, Henrik Cederquist, Henning T. Schmidt, Henning Zettergren
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 146 (2024)
We have studied the stability of C _59 anions as a function of time, from their formation on femtosecond timescales to their stabilization on second timescales and beyond, using a combination of theory and experiments. The ${{\rm{C}}}_{59}^{-}$ fragm
Externí odkaz:
https://doaj.org/article/70b89d38f5ac498ca36cb3110559fac4
Autor:
Michael Gatchell, João Ameixa, MingChao Ji, Mark H. Stockett, Ansgar Simonsson, Stephan Denifl, Henrik Cederquist, Henning T. Schmidt, Henning Zettergren
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Ion storage rings allow reactions to be studied over orders of magnitude in time, bridging the gap between typical experimental and astronomical timescales. Here the authors observe that polycyclic aromatic hydrocarbon fragments produced upon collisi
Externí odkaz:
https://doaj.org/article/51e04e4c2b6a4004a23b737bf419920f
Autor:
Gustav Eklund, Moa K. Kristiansson, K. C. Chartkunchand, Emma K. Anderson, Malcolm Simpson, Roland Wester, Henning T. Schmidt, Henning Zettergren, Henrik Cederquist, Wolf D. Geppert
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p L012016 (2022)
By repeatedly probing the a^{1}Δ excited state and the X^{3}Σ^{−} ground-state populations in a beam of CH^{−} ions stored in a cryogenic ion-beam storage ring for 100 s, we extract an intrinsic lifetime of 14.9±0.5 s for this excited state. T
Externí odkaz:
https://doaj.org/article/c082b0adfd5040c488697808ea60df47
Autor:
Jérôme Bernard, MingChao Ji, Suvasthika Indrajith, Mark H. Stockett, José E. Navarro Navarrete, Naoko Kono, Henrik Cederquist, Serge Martin, Henning T. Schmidt, Henning Zettergren
Publikováno v:
Physical Chemistry Chemical Physics. 25:10726-10740
High recurrent fluorescence rates of tetracene cations, C18H12, measured with two electrostatic ion rings, DESIREE and Mini-Ring, lead to much more effective radiative cooling than previously investigated PAH cations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76fdf33469d3b57aaefae63e890b05f9
https://doi.org/10.1039/d3cp00424d
https://doi.org/10.1039/d3cp00424d
Autor:
Jason W. L. Lee, Mark H. Stockett, Eleanor K. Ashworth, José E. Navarro Navarrete, Eva Gougoula, Diksha Garg, MingChao Ji, Boxing Zhu, Suvasthika Indrajith, Henning Zettergren, Henning T. Schmidt, James N. Bull
Publikováno v:
The journal of chemical physics 158, 174305 (2023). doi:10.1063/5.0147456
The journal of chemical physics 158, 174305 (2023). doi:10.1063/5.0147456
Naphthalene and azulene are isomeric polycyclic aromatic hydrocarbons (PAHs) and are topical in the context of astrochemistry due to the recent discovery of substituted na
Naphthalene and azulene are isomeric polycyclic aromatic hydrocarbons (PAHs) and are topical in the context of astrochemistry due to the recent discovery of substituted na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d07254b4112b664bfb21800da0bf3540
https://doi.org/10.1063/5.0147456
https://doi.org/10.1063/5.0147456
Publikováno v:
Physical Chemistry Chemical Physics. 24:12002-12010
We report measurements of the statistical vibrational autodetachment (VAD, also called thermionic emission) and radiative cooling rates of isolated para-benzoquinone (pBQ, C6H4O2) radical anions using the cryogenic electrostatic ion storage ring faci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::097cce731349524b13ab52382eb93a7c
https://doi.org/10.1039/d2cp00490a
https://doi.org/10.1039/d2cp00490a
Autor:
Jon Grumer, Gustav Eklund, Anish M. Amarsi, Paul S. Barklem, Stefan Rosén, MingChao Ji, Ansgar Simonsson, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt
Publikováno v:
Physical Review Letters. 130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::225c882ec5ff9a62b1f39b106a11ad7b
https://doi.org/10.1103/physrevlett.130.029901
https://doi.org/10.1103/physrevlett.130.029901