Zobrazeno 1 - 10
of 841
pro vyhledávání: '"A. Belloche"'
Publikováno v:
A&A 691, A88 (2024)
Context. IRAS 16293E is a rare case of a prestellar core being subjected to the effects of at least one outflow.Aims. We want to disentangle the actual structure of the core from the outflow impact and evaluate the evolutionary stage of the core. Met
Externí odkaz:
http://arxiv.org/abs/2409.10093
Publikováno v:
A&A 688, A201 (2024)
Methanol is an abundant molecule in space. The column density of CH$_3^{18}$OH is in some star-forming regions so high that the search for CH$_3^{17}$OH is promising. But only very few transition frequencies of CH$_3^{17}$OH with a microwave accuracy
Externí odkaz:
http://arxiv.org/abs/2407.01139
Autor:
Harju, Jorma, Vastel, Charlotte, Sipilae, Olli, Redaelli, Elena, Caselli, Paola, Pineda, Jaime E., Belloche, Arnaud, Wyrowski, Friedrich
Publikováno v:
A&A 688, A117 (2024)
(abridged) We have mapped the prestellar core H-MM1 in Ophiuchus in rotational lines of ortho-H2D+ (oH2D+), N2H+, and DCO+ at the wavelength 0.8 mm with the Large APEX sub-Millimeter Array (LAsMA) multibeam receiver of the Atacama Pathfinder EXperime
Externí odkaz:
http://arxiv.org/abs/2405.20004
Autor:
Dhariwal, Aditya, Speak, Thomas H., Zeng, Linshan, Rashidi, Amirhossein, Moore, Brendan, Berné, Olivier, Remijan, Anthony J., Schroetter, Ilane, McGuire, Brett A., Rivilla, Víctor M., Belloche, Arnaud, Jørgensen, Jes K., Djuricanin, Pavle, Momose, Takamasa, Cooke, Ilsa R.
Infrared emission features toward interstellar gas of the IC 348 star cluster in Perseus have been recently proposed to originate from the amino acid tryptophan. The assignment was based on laboratory infrared spectra of tryptophan pressed into pelle
Externí odkaz:
http://arxiv.org/abs/2405.16773
Nuclear spin ratios of deuterated ammonia in prestellar cores. LAsMA observations of H-MM1 and Oph D
Autor:
Harju, Jorma, Pineda, Jaime E., Sipilä, Olli, Caselli, Paola, Belloche, Arnaud, Wyrowski, Friedrich, Riedel, Wiebke, Redaelli, Elena, Vasyunin, Anton I.
We determine the ortho/para ratios of NH2D and NHD2 in two dense, starless cores, where their formation is supposed to be dominated by gas-phase reactions, which, in turn, is predicted to result in deviations from the statistical spin ratios. The Lar
Externí odkaz:
http://arxiv.org/abs/2311.08006
We want to investigate the influence of the powerful outflow driven by the hot core Sgr B2(N1) on the gas molecular inventory of the surrounding medium. We used the data taken as part of the 3 mm imaging spectral-line survey ReMoCA (Re-exploring Mole
Externí odkaz:
http://arxiv.org/abs/2310.11339
Autor:
Gong, Y., Du, F. J., Henkel, C., Jacob, A. M., Belloche, A., Wang, J. Z., Menten, K. M., Yang, W., Quan, D. H., Bop, C. T., Ortiz-León, G. N., Tang, X. D., Rugel, M. R., Liu, S.
Publikováno v:
A&A 679, A39 (2023)
Protonated hydrogen cyanide, HCNH$^{+}$, plays a fundamental role in astrochemistry because it is an intermediary in gas-phase ion-neutral reactions within cold molecular clouds. However, the impact of the environment on the chemistry of HCNH$^{+}$ r
Externí odkaz:
http://arxiv.org/abs/2308.15521
Autor:
Müller, H. S. P., Garrod, R. T., Belloche, A., Rivilla, V. M., Menten, K. M., Jiménez-Serra, I., Martín-Pintado, J., Lewen, F., Schlemmer, S.
Publikováno v:
Mon. Not. R. Astron. Soc., 523, 2887-2917 (2023)
Methylamine has been the only simple alkylamine detected in the interstellar medium for a long time. With the recent secure and tentative detections of vinylamine and ethylamine, respectively, dimethylamine has become a promising target for searches
Externí odkaz:
http://arxiv.org/abs/2305.11656
Autor:
Szabó, Zs. M., Gong, Y., Yang, W., Menten, K. M., Bayandina, O. S., Cyganowski, C. J., Kóspál, Á., Ábrahám, P., Belloche, A., Wyrowski, F.
FU Orionis (FUor) and EX Lupi (EXor) type objects are two groups of peculiar and rare pre-main sequence low-mass stars that are undergoing powerful accretion outbursts during their early stellar evolution. Water masers are widespread in star forming
Externí odkaz:
http://arxiv.org/abs/2305.00736
Autor:
Szabó, Zs. M., Gong, Y., Menten, K. M., Yang, W., Cyganowski, C. J., Kóspál, Á., Ábrahám, P., Belloche, A., Wyrowski, F.
Publikováno v:
A&A 672, A158 (2023)
FU Orionis (FUor) and EX Lupi (EXor) type objects represent two small, but rather spectacular groups of low-mass, young eruptive stars. Outbursts of several magnitudes are observed, attributed to enhanced accretion from the circumstellar disk onto th
Externí odkaz:
http://arxiv.org/abs/2302.03371