Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Hassel, G. E."'
Autor:
Persson, C. M., Olofsson, A. O. H., Gal, R. Le, Wirström, E. S., Hassel, G. E., Herbst, E., Olberg, M., Faure, A., Hily-Blant, P., Black, J. H., Gerin, M., Lis, D., Wyrowski, F.
Publikováno v:
A&A 586, A128 (2016)
We have used the Herschel-HIFI instrument to observe both nuclear spin symmetries of amidogen (NH2) towards the high-mass star-forming regions W31C (G10.6-0.4), W49N (G43.2-0.1), W51 (G49.5-0.4) and G34.3+0.1. The aim is to investigate the ratio of n
Externí odkaz:
http://arxiv.org/abs/1511.05486
Autor:
Furuya, K., Aikawa, Y., Hincelin, U., Hassel, G. E., Bergin, E. A., Vasyunin, A. I., Herbst, Eric
Publikováno v:
A&A 584, A124 (2015)
We investigate the water deuteration ratio and ortho-to-para nuclear spin ratio of H2 (OPR(H2)) during the formation and early evolution of a molecular cloud, following the scenario that accretion flows sweep and accumulate HI gas to form molecular c
Externí odkaz:
http://arxiv.org/abs/1510.05135
Autor:
Persson, C. M., Hajigholi, M., Hassel, G. E., Olofsson, A. O. H., Black, J. H., Herbst, E., Müller, H. S. P., Cernicharo, J., Wirström, E. S., Olberg, M., Hjalmarson, Å., Lis, D. C., Cuppen, H. M., Gerin, M., Menten, K. M.
Publikováno v:
A&A 567, A130 (2014)
The understanding of interstellar nitrogen chemistry has improved significantly with recent results from the Herschel Space Observatory. To set even better constraints, we report here on deep searches for the NH+ ground state rotational transition J=
Externí odkaz:
http://arxiv.org/abs/1407.1823
Autor:
Persson, C. M., Gerin, M., Mookerjea, B., Black, J. H., Olberg, M., Goicoechea, J. R., Hassel, G. E., Falgarone, E., Levrier, F., Menten, K. M., Pety, J.
Publikováno v:
A&A 568, A37 (2014)
We present high resolution [NII] 205 micrometer ^3P_1-^3P_0 spectra obtained with Herschel-HIFI towards a small sample of far-infrared bright star forming regions in the Galactic plane: W31C (G10.6-0.4), W49N (G43.2-0.1), W51 (G49.5-0.4), and G34.3+0
Externí odkaz:
http://arxiv.org/abs/1406.3052
Autor:
Mookerjea, B., Vastel, C., Hassel, G. E., Gerin, M., Pety, J., Goldsmith, P. F., Black, J. H., Giesen, T., Harrison, T., Persson, C. M., Stutzki, J.
In the framework of the Herschel/PRISMAS Guaranteed Time Key Program, the line of sight to the distant ultracompact HII region W51e2 has been observed using several selected molecular species. Most of the detected absorption features are not associat
Externí odkaz:
http://arxiv.org/abs/1404.0121
Autor:
Persson, C. M., De Luca, M., Mookerjea, B., Olofsson, A. O. H., Black, J. H., Gerin, M., Herbst, E., Bell, T. A., Coutens, A., Godard, B., Goicoechea, J. R., Hassel, G. E., Hily-Blant, P., Menten, K. M., Muller, H. S. P, Pearson, J. C., Yu, S.
Publikováno v:
Astronomy & Astrophysics, 2012, 543, 145
We have used the Herschel-HIFI instrument to observe interstellar nitrogen hydrides along the sight-lines towards W49N and G10.6-0.4 in order to elucidate the production pathways leading to nitrogen-bearing species in diffuse gas. All detections show
Externí odkaz:
http://arxiv.org/abs/1208.3979
Autor:
Persson, C. M., Black, J. H., Cernicharo, J., Goicoechea, J. R., Hassel, G. E., Herbst, E., Gerin, M., De Luca, M., Bell, T. A., Coutens, A., Falgarone, E., Goldsmith, P. F., Gupta, H., Kazmierczak, M., Lis, D. C., Mookerjea, B., Neufeld, D. A., Pearson, J., Phillips, T. G., Sonnentrucker, P., Stutzki, J., Vastel, C., Yu, S., Boulanger, F., Dartois, E., Encrenaz, P., Geballe, T. R., Giesen, T., Godard, B., Gry, C., Hennebelle, P., Hily-Blant, P., Joblin, C., Kolos, R., Krelowski, J., Martin-Pintado, J., Menten, K., Monje, R., Perault, M., Plume, R., Salez, M., Schlemmer, S., Schmidt, M., Teyssier, D., Peron, I., Cais, P., Gaufre, P., Cros, A., Ravera, L., Morris, P., Lord, S., Planesas, P.
The HIFI instrument on board the Herschel Space Observatory has been used to observe interstellar nitrogen hydrides along the sight-line towards G10.6-0.4 in order to improve our understanding of the interstellar chemistry of nitrogen. We report obse
Externí odkaz:
http://arxiv.org/abs/1007.2550
Context: Chemical models of dense cloud cores often utilize the so-called pseudo-time-dependent approximation, in which the physical conditions are held fixed and uniform as the chemistry occurs. In this approximation, the initial abundances chosen,
Externí odkaz:
http://arxiv.org/abs/1003.3423
Autor:
Persson, C. M., Hajigholi, M., Hassel, G. E., Olofsson, A. O. H., Black, J. H., Herbst, E., Müller, H. S. P., Cernicharo, J., Wirström, E. S., Olberg, M., Hjalmarson, Å., Lis, D. C., Cuppen, H. M., Gerin, M., Menten, K. M.
The understanding of interstellar nitrogen chemistry has improved significantly with recent results from the Herschel Space Observatory. To set even better constraints, we report here on deep searches for the NH^+ ground state rotational transition J
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od________38::fa20599dc9ef4a1beb5e2ef5713b28fc
https://resolver.caltech.edu/CaltechAUTHORS:20141010-144701465
https://resolver.caltech.edu/CaltechAUTHORS:20141010-144701465
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