140 citations · 582 across the 11 of their papers we have counts for
11 papers
Comprehensive Ab Initio Quantum Computations of CO-H and CO-He Collisional Properties
Prajwal Niraula, Laurent Wiesenfeld, Nejmeddine Jaïdane +6
We present comprehensive \textsl{ab initio} fully quantum calculations of CO--H and CO--He collisional properties. Our framework combines CCSD(T) pote…
Ab initio quantum dynamics as a scalable solution to the exoplanet opacity challenge: A case study of CO in hydrogen atmosphere
Laurent Wiesenfeld, Prajwal Niraula, Julien de Wit +3
Light-matter interactions lie at the heart of our exploration of exoplanetary atmospheres. Interpreting data obtained by remote sensing is enabled by meticulous, time- and resource…
Seeds of Life in Space (SOLIS) III. Formamide in protostellar shocks: evidence for gas-phase formation
C. Codella, C. Ceccarelli, P. Caselli +47
Context: Modern versions of the Miller-Urey experiment claim that formamide (NHCHO) could be the starting point for the formation of metabolic and genetic macromolecules. Intri…
SOLIS II. Carbon-chain growth in the Solar-type protocluster OMC2-FIR4
F. Fontani, C. Ceccarelli, C. Favre +42
The interstellar delivery of carbon atoms locked into molecules might be one of the key ingredients for the emergence of life. Cyanopolyynes are carbon chains delimited at their tw…
Collisional excitation of NH3 by atomic and molecular hydrogen
N. Bouhafs, C. Rist, F. Daniel +4
We report extensive theoretical calculations on the rotation-inversion excitation of interstellar ammonia (NH3) due to collisions with atomic and molecular hydrogen (both para- and…
History of the solar-type protostar IRAS16293-2422 as told by the cyanopolyynes
A. A. Jaber, C. Ceccarelli, C. Kahane +9
Cyanopolyynes are chains of carbon atoms with an atom of hydrogen and a CN group on either side. They are detected almost everywhere in the ISM, as well as in comets. In the past,…
Collisional excitation of HC3N by para- and ortho-H2
A. Faure, F. Lique, L. Wiesenfeld
New calculations for rotational excitation of cyanoacetylene by collisions with hydrogen molecules are performed to include the lowest 38 rotational levels of HC3N and kinetic temp…
Collisional excitation of doubly and triply deuterated ammonia NDH and ND by H
F. Daniel, C. Rist, A. Faure +6
The availability of collisional rate coefficients is a prerequisite for an accurate interpretation of astrophysical observations, since the observed media often harbour densities w…
The CHESS survey of the L1157-B1 bow-shock: high and low excitation water vapor
G. Busquet, B. Lefloch, M. Benedettini +9
Molecular outflows powered by young protostars strongly affect the kinematics and chemistry of the natal molecular cloud through strong shocks resulting in substantial modification…
Radiation thermo-chemical models of protoplanetary discs. IV Modelling CO ro-vibrational emission from Herbig Ae discs
Wing-Fai Thi, Inga Kamp, Peter Woitke +3
The carbon monoxide rovibrational emission from discs around Herbig Ae stars and T Tauri stars with strong ultraviolet emissions suggests that fluorescence pumping from the ground…
First detection of Hydrogen Chloride towards protostellar shocks
C. Codella, C. Ceccarelli, S. Bottinelli +8
We present the first detection of hydrogen chlorine in a protostellar shock, by observing the fundamental transition at 626 GHz with the Herschel HIFI spectrometer. We detected two…