73 citations · 267 across the 11 of their papers we have counts for
11 papers
Electron impact ro-vibrational transitions and dissociative recombination of H2+ and HD+: Rate coefficients and astrophysical implications
Riyad Hassaine, Emerance Djuissi, Nicolina Pop +11
Context. Molecular hydrogen and its cation H+2 are among the first species formed in the early Universe, and play a key role in the thermal and chemical evolution of the primordial…
The unbiased Diffusion Monte Carlo: a versatile tool for two-electron systems confined in different geometries
Gaia Micca Longo, Carla Maria Coppola, Domenico Giordano +1
Computational codes based on the Diffusion Monte Carlo method can be used to determine the quantum state of two-electron systems confined by external potentials of various nature a…
Temperature and density dependent cooling function for H with updated H/H collisional rates
Carla Maria Coppola, François Lique, Francesca Mazzia +2
The energy transfer among the components in a gas determines its fate. Especially at low temperatures, inelastic collisions drive the cooling and the heating mechanisms. In the ear…
Non-thermal photons and direct photodissociation of H2, HD and HeH+ in the chemistry of the primordial Universe
C. M. Coppola, M. V. Kazandjian, D. Galli +2
Non-thermal photons deriving from radiative transitions among the internal ladder of atoms and molecules are an important source of photons in addition to thermal and stellar sourc…
Constraining cloud parameters using high density gas tracers in galaxies
M. V. Kazandjian, I. Pelupessy, R. Meijerink +4
Far-infrared molecular emission is an important tool used to understand the excitation mechanisms of the gas in the inter-stellar medium of star-forming galaxies. In the present wo…
State-to-state vibrational kinetics of H and H in a post-shock cooling gas with primordial composition
C. M. Coppola, G. Mizzi, D. Bruno +4
The radiative cooling of shocked gas with primordial chemical composition is an important process relevant to the formation of the first stars and structures, as well as taking pla…
Role of the H channel in the primordial star formation under strong radiation field and the critical intensity for the supermassive star formation
Kazuyuki Sugimura, Carla M. Coppola, Kazuyuki Omukai +2
We investigate the role of the H_2^+ channel on H_2 molecule formation during the collapse of primordial gas clouds immersed in strong radiation fields which are assumed to have th…
Non-thermal photons and H2 formation in the early Universe
Carla Maria Coppola, Daniele Galli, Francesco Palla +2
The cosmological recombination of H and He at z \sim 1000 and the formation of H2 during the dark ages produce a non-thermal photon excess in the Wien tail of the cosmic microwave…
Non-equilibrium H formation in the early Universe: energy exchanges, rate coefficients and spectral distortions
Carla Maria Coppola, Roberto D'Introno, Daniele Galli +2
Energy exchange processes play a crucial role in the early Universe, affecting the thermal balance and the dynamical evolution of the primordial gas. In the present work we focus o…
Vibrational level population of H and H in the early Universe
Carla M. Coppola, Savino Longo, Mario Capitelli +2
We formulate a vibrationally resolved kinetics for molecular hydrogen and its cation in the primordial Universe chemistry. Formation, destruction and relaxation processes for each…
Radiative cooling functions for primordial molecules
Carla Maria Coppola, Lorenzo Lodi, Jonathan Tennyson
Cooling of primordial gas plays a crucial role in the birth of the first structures in our Universe. Due to the low fractional abundance of molecular species at high redshifts, spo…