261 citations · 2.6k across the 62 of their papers we have counts for
11 papers · 1 filter
Nitrogen oxide in protostellar envelopes and shocks: the ASAI survey
C. Codella, S. Viti, B. Lefloch +8
The high-sensitivity of the IRAM 30-m ASAI unbiased spectral survey in the mm-window allows us to detect NO emission towards both the Class I object SVS13-A and the protostellar ou…
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…
Deuterated methanol on Solar System scale around the HH212 protostar
E. Bianchi, C. Codella, C. Ceccarelli +13
Context: Methanol is thought to be mainly formed during the prestellar phase and its deuterated form keeps memory of the conditions at that epoch. Thanks to the unique combination…
The onset of energetic particle irradiation in Class 0 protostars
C. Favre, A. Lopez-Sepulcre, C. Ceccarelli +11
The early stages of low-mass star formation are likely to be subject to intense ionization by protostellar energetic MeV particles. As a result, the surrounding gas is enriched in…
Complex organics in IRAS 4A revisited with ALMA and PdBI: Striking contrast between two neighbouring protostellar cores
A. López-Sepulcre, N. Sakai, R. Neri +13
We used the Atacama Large (sub-)Millimeter Array (ALMA) and the IRAM Plateau de Bure Interferometer (PdBI) to image, with an angular resolution of 0.5 (120 au) and 1 (235 a…
Detection of the HCNH and HCNH ions in the L1544 pre-stellar core
David Quénard, Charlotte Vastel, Cecilia Ceccarelli +3
The L1544 pre-stellar core was observed as part of the ASAI (Astrochemical Surveys At IRAM) Large Program. We report the first detection in a pre-stellar core of the HCNH and H…