FAUST-XVII. Super deuteration in the planet-forming system IRS 63 where the streamer strikes the disk

L Podio, C Ceccarelli, C Codella, G Sabatini… - Astronomy & …, 2024 - aanda.org
Context. Recent observations suggest that planet formation starts early, in protostellar disks
of≤ 10 5 yr, which are characterized by strong interactions with the environment, such as …

Modelling deuterated isotopologues of methanol towards the pre-stellar core L1544

W Riedel, O Sipilä, E Redaelli, P Caselli… - Astronomy & …, 2023 - aanda.org
Context. In the extremely cold and dark environments of pre-stellar cores, methanol is
formed on the surface of interstellar dust grains and released into the gas phase via non …

Prestellar grain-surface origins of deuterated methanol in comet 67P/Churyumov–Gerasimenko

MN Drozdovskaya, IRHG Schroeder I… - Monthly Notices of …, 2021 - academic.oup.com
Deuterated methanol is one of the most robust windows astrochemists have on the
individual chemical reactions forming deuterium-bearing molecules and the …

Gas phase Elemental abundances in Molecular cloudS (GEMS)-IV. Observational results and statistical trends

M Rodríguez-Baras, A Fuente… - Astronomy & …, 2021 - aanda.org
Gas phase Elemental abundances in Molecular CloudS (GEMS) is an IRAM 30 m Large
Program designed to provide estimates of the S, C, N, and O depletions and gas ionization …

The central 1000 au of a pre-stellar core revealed with ALMA. I. 1.3 mm continuum observations

P Caselli, JE Pineda, B Zhao… - The Astrophysical …, 2019 - iopscience.iop.org
Stars like our Sun form in self-gravitating dense and cold structures within interstellar clouds
that are referred to as pre-stellar cores. Although much is known about the physical structure …

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Discovery of an extremely dense and compact object embedded in the prestellar core G208. 68 …

N Hirano, D Sahu, SY Liu, T Liu… - The Astrophysical …, 2024 - iopscience.iop.org
The internal structure of the prestellar core G208. 68-19.02-N2 (G208-N2) in the Orion
Molecular Cloud 3 (OMC-3) region has been studied with the Atacama Large Millimeter …

Similar levels of deuteration in the pre-stellar core L1544 and the protostellar core HH211

K Giers, S Spezzano, P Caselli, E Wirström… - Astronomy & …, 2023 - aanda.org
Context. In the centre of pre-stellar cores, deuterium fractionation is enhanced due to low
temperatures and high densities. Therefore, the chemistry of deuterated molecules can be …

Complex organic molecules in a very young hot corino, HOPS 373SW

JE Lee, G Baek, S Lee, JH Jeong, CH Kim… - The Astrophysical …, 2023 - iopscience.iop.org
We present the spectra of complex organic molecules (COMs) detected in HOPS 373SW
with the Atacama Large Millimeter/submillimeter Array (ALMA). HOPS 373SW, which is a …

H2CS deuteration maps towards the pre-stellar core L1544

S Spezzano, O Sipilä, P Caselli, SS Jensen… - Astronomy & …, 2022 - aanda.org
Context. Deuteration is a crucial tool for understanding the complexity of interstellar
chemical processes, especially when they involve the interplay of gas-phase and grain …

Chemistry and dynamics of the prestellar core L1544

O Sipilä, P Caselli, E Redaelli, S Spezzano - Astronomy & Astrophysics, 2022 - aanda.org
We aim to quantify the effect of chemistry on the infall velocity in the prestellar core L1544.
Previous observational studies have found evidence for double-peaked line profiles for the …