157 citations
- Centre National de la Recherche ScientifiqueFR7 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR7 papers
- Université Grenoble AlpesFR7 papers
- Institut de Recherche en Astrophysique et PlanétologieFR6 papers
- Université Fédérale de Toulouse Midi-PyrénéesFR6 papers
- Université Toulouse III - Paul SabatierFR6 papers
- Arcetri Astrophysical ObservatoryIT5 papers
- Institut de Radioastronomie MillimétriqueFR4 papers
- Spanish National ObservatoryES4 papers
- The University of TokyoJP4 papers
- University College LondonGB4 papers
- Aix-Marseille UniversitéFR3 papers
9 papers
Singular Graphs with Dihedral Group Action
Ali Sltan Ali AL-Tarimshawy, J. Siemons
Let be a simple undirected graph on a finite vertex set and let be its adjacency matrix. Then is {\it singular} if is singular. The problem of characterising singul…
Electronic and Optical Properties of γ- and θ- Alumina by First Principle Calculations
Ahmed S. Jbara, Zulkafli Othaman, H. A. Rahnamaye Aliabad +1
The electronic and optical parameters of γ-Al2O3 and θ-Al2O3 have been studied by using the first principle within the framework of density function theory (DFT). The computational…
First measurement of the 14N/15N ratio in the analogue of the Sun progenitor OMC-2 FIR4
Claudine Kahane, Ali Jaber Al-Edhari, Cecilia Ceccarelli +3
We present a complete census of the 14N/15N isotopic ratio in the most abundant N-bearing molecules towards the cold envelope of the protocluster OMC-2 FIR4, the best known Sun pro…
Seeds Of Life In Space (SOLIS): The organic composition diversity at 300--1000 au scale in Solar-type star forming regions
C. Ceccarelli, P. Caselli, F. Fontani +43
Complex organic molecules have been observed for decades in the interstellar medium. Some of them might be considered as small bricks of the macromolecules at the base of terrestri…
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…