Negative ions in space

TJ Millar, C Walsh, TA Field - Chemical reviews, 2017 - ACS Publications
Until a decade ago, the only anion observed to play a prominent role in astrophysics was H–
. The bound–free transitions in H–dominate the visible opacity in stars with photospheric …

Ion chemistry in space

M Larsson, WD Geppert, G Nyman - Reports on Progress in …, 2012 - iopscience.iop.org
We review the gas-phase chemistry in extraterrestrial space that is driven by reactions with
atomic and molecular ions. Ions are ubiquitous in space and are potentially responsible for …

First storage of ion beams in the Double Electrostatic Ion-Ring Experiment: DESIREE

HT Schmidt, RD Thomas, M Gatchell… - Review of Scientific …, 2013 - pubs.aip.org
First storage of ion beams in the Double Electrostatic Ion-Ring Experiment: DESIREE | Review
of Scientific Instruments | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella Alt …

The double electrostatic ion ring experiment: A unique cryogenic electrostatic storage ring for merged ion-beams studies

RD Thomas, HT Schmidt, G Andler… - Review of Scientific …, 2011 - pubs.aip.org
We describe the design of a novel type of storage device currently under construction at
Stockholm University, Sweden, using purely electrostatic focussing and deflection elements …

Cooling dynamics of energized naphthalene and azulene radical cations

JWL Lee, MH Stockett, EK Ashworth… - The Journal of …, 2023 - pubs.aip.org
Naphthalene and azulene are isomeric polycyclic aromatic hydrocarbons (PAHs) and are
topical in the context of astrochemistry due to the recent discovery of substituted …

Experimental investigations into astrophysically relevant ionic reactions

WD Geppert, M Larsson - Chemical reviews, 2013 - ACS Publications
There is not a single Nobel Prize in chemistry awarded to an extraterrestrial chemical
discovery. This is in sharp contrast to the Nobel Prizes in physics, where about 10 prizes …

Photodetachment as a destruction mechanism for CN− and C3N− anions in circumstellar envelopes

SS Kumar, D Hauser, R **dra, T Best… - The Astrophysical …, 2013 - iopscience.iop.org
Absolute photodetachment cross sections of two anions of astrophysical importance CN−
and C 3 N− were measured to be (1.18±(0.03) stat (0.17) sys)× 10− 17 cm 2 and …

Precision Lifetime Measurements of in a Cryogenic Electrostatic Ion-Beam Trap

P Reinhed, A Orbán, J Werner, S Rosén, RD Thomas… - Physical review …, 2009 - APS
We have developed a small purely electrostatic ion-beam trap which may be operated in
thermal equilibrium at precisely controlled temperatures down to 10 K. Thus, we avoid …

Simultaneous electrostatic trap** of merged cation & anion beams

A Bogot, O Lioubashevski, O Heber… - Physical Chemistry …, 2023 - pubs.rsc.org
Simultaneous trap** of merged cation and anion beams in the hybrid electrostatic ion
beam trap (HEIBT) opens new opportunities for the study of the interactions of isolated …

Electrostatic storage rings for atomic and molecular physics

HT Schmidt - Physica Scripta, 2015 - iopscience.iop.org
A significant number of electrostatic ion-storage rings have been built since the late 1990s or
are currently in their construction or commisioning phases. In this short contribution, we …