Results 31 to 40 of about 121 (117)
Herschel/HIFI spectroscopy of the intermediate mass protostar NGC 7129 FIRS 2 [PDF]
Astronomy and Astrophysics, 2010 HERSCHEL-HIFI observations of water from the intermediate mass protostar NGC7129 FIRS 2 provide a powerful diagnostic of the physical conditions in this star formation environment. Six spectral settings, covering four H216O and two H218O lines, were observed and all but one H218O line were detected. The four H2 16 O lines discussed here share a similar Johnstone, D., Fich, M., Mccoey, C., van Kempen, T. A., Fuente, A., Kristensen, L. E., Cernicharo, J., Caselli, P., Visser, R., Plume, R., Herczeg, G. J., van Dishoeck, E. F., Wampfler, S., Bachiller, R., Baudry, Alain, Benedettini, M., Bergin, E., Benz, A. O., Bjerkeli, P., Blake, G., Bontemps, Sylvain, Braine, J., Bruderer, S., Codella, C., Daniel, F., Di Giorgio, A. M., Dominik, C., Doty, S. D., Encrenaz, P., Giannini, T., Goicoechea, J. R., de Graauw, Th., Helmich, F., Herpin, Fabrice, Hogerheijde, M. R., Jacq, T., Jørgensen, J. K., Larsson, B., Lis, D., Liseau, R., Marseille, M., Melnick, G., Neufeld, D., Nisini, B., Olberg, M., Parise, B., Pearson, Justin, Risacher, C., Santiago-García, J., Saraceno, P., Shipman, R., Tafalla, M., van Der Tak, F., Wyrowski, F., Yildiz, U. A., Caux, E., Honingh, N., Jellema, W., Schieder, R., Teyssier, D., Whyborn, N. +60 moreopenaire +7 more sourcesHerschel/HIFI observations of [CII] and [13CII] in PDRs
, 2012 Recently, we introduced detailed isotopic chemistry into the KOSMA-tau model for photon-dominated regions (PDRs) to give theoretical predictions for the abundance of the carbon isotopologues as a function of PDR parameters. Combined with radiative transfer computations for specific geometries, we estimated the possible intensity ratio of the [CII ...Ossenkopf, V., Röllig, M., Neufeld, D. A., Pilleri, P., Lis, D. C., Fuente, A., van der Tak, F. F. S., Bergin, E. +7 moreopenaire +2 more sourcesHerschelobservations of EXtra-Ordinary Sources (HEXOS): The present and future of spectral surveys withHerschel/HIFI [PDF]
Astronomy and Astrophysics, 2010 We present initial results from the Herschel GT key program: Herschel observations of EXtra-Ordinary Sources (HEXOS) and outline the promise and potential of spectral surveys with Herschel/HIFI. The HIFI instrument offers unprecedented sensitivity, as well as continuous spectral coverage across the gaps imposed by the atmosphere, opening up a largely ...Bergin, E. A., Phillips, T. G., Comito, C., Crockett, N. R., Lis, D. C., Schilke, P., Wang, S., Bell, T. A., Blake, G. A., Bumble, B., Caux, E., Cabrit, S., Ceccarelli, C., Cernicharo, J., Daniel, F., de Graauw, Th., Dubernet, M.-L., Emprechtinger, M., Encrenaz, P., Falgarone, E., Gerin, M., Giesen, T. F., Goicoechea, J. R., Goldsmith, P. F., Gupta, H., Hartogh, P., Helmich, F. P., Herbst, E., Joblin, C., Johnstone, D., Kawamura, J. H., Langer, W. D., Latter, W. B., Lord, S. D., Maret, S., Martin, P. G., Melnick, G. J., Menten, K. M., Morris, P., Müller, H. S. P., Murphy, J. A., Neufeld, D. A., Ossenkopf, V., Pagani, L., Pearson, J. C., Pérault, M., Plume, R., Roelfsema, P., Qin, S.-L., Salez, M., Schlemmer, S., Stutzki, J., Tielens, A. G. G. M., Trappe, N., van Der Tak, F. F. S., Vastel, C., Yorke, H. W., Yu, S., Zmuidzinas, J. +58 moreopenaire +8 more sourcesHerschel-HIFI view of mid-IR quiet massive protostellar objects [PDF]
Astronomy & Astrophysics, 2016 31 pages, 15 figures, accepted in A&A main Journal on January ...Herpin, Fabrice, Chavarria, L., Jacq, T., Braine, J., van Der Tak, F., Wyrowski, F., van Dishoeck, E. F., Baudry, Alain, Bontemps, Sylvain, Kristensen, L., Schmalzl, M., Mata, J. +11 moreopenaire +6 more sourcesHERSCHELOBSERVATIONS OF EXTRAORDINARY SOURCES: ANALYSIS OF THE FULLHERSCHEL/HIFI MOLECULAR LINE SURVEY OF SAGITTARIUS B2(N) [PDF]
The Astrophysical Journal, 2014 A sensitive broadband molecular line survey of the Sagittarius B2(N) star-forming region has been obtained with the HIFI instrument on the Herschel Space Observatory, offering the first high-spectral resolution look at this well-studied source in a wavelength region largely inaccessible from the ground (625-157 um).Neill, Justin, Bergin, Edwin, Lis, Dariusz, Schilke, Peter, Crockett, Nathan, Favre, Cécile, Emprechtinger, Martin, Comito, Claudia, Qin, Sheng-Li, Anderson, Dana, Burkhardt, Andrew, Chen, Jo-Hsin, Harris, Brent, Lord, Steven, Mcguire, Brett, Mcneill, Trevor, Monje, Raquel, Phillips, Thomas, Steber, Amanda, Vasyunina, Tatiana, Yu, Shanshan +20 moreopenaire +4 more sourcesHerschel/HIFI observations of molecular lines toward G10.47+0.03
Frontiers in Astronomy and Space Sciences We present a spectral line analysis of the hot molecular core G10.47 + 0.03 (hereafter, G10). Our aim is to determine molecular abundances and excitation conditions across a wide spectral range inaccessible to ground-based observatories.Mondal, Indrajit, Gorai, Prasanta, Das, Ankan, Mondal, Suman Kumar, Fedriani, R., Li, Xiaohu, Mahapatra, Parama, Banik, Sabyaasachi, Qin, Sheng-Li +8 moreopenaire +3 more sourcesHIFISTARS Herschel/HIFI observations of VY Canis Majoris
, 2013 Aims. The study of the molecular gas in the circumstellar envelopes of evolved stars is normally undertaken by observing lines of CO (and other species) in the millimetre-wave domain. In general, the excitation requirements of the observed lines are low at these wavelengths, and therefore these observations predominantly probe the cold outer envelope ...Alcolea, J., Bujarrabal, V., Planesas, P., Teyssier, D., Cernicharo, J., De Beck, Elvire, Decin, Leen, Dominik, C., Justtanont, K., de Koter, Alex, Marston, A.P., Melnick, G., Menten, K.M., Neufeld, D.A., Olofsson, H., Schmidt, M., Schöier, F.L., Szczerba, R., Waters, L.BF.M. +18 moreopenaire +1 more sourceHerschel/HIFI discovery of interstellar chloronium (H2Cl+) [Letter]
, 2010 We report the first detection of chloronium, H2Cl+, in the interstellar medium, using the HIFI instrument aboard the Herschel Space Observatory. The 212–101 lines of ortho-HCl+ and ortho-HCl+ are detected in absorption towards NGC 6334I, and the 111–000 transition of para-HCl+ is detected in absorption towards NGC 6334I and Sgr B2(S).Lis, D. C., Pearson, J. C., Neufeld, D. A., Schilke, P., Mueller, H. S. P., Gupta, H., Bell, T. A., Comito, C., Phillips, T. G., Bergin, E. A., Ceccarelli, C., Goldsmith, P. F., Blake, G. A., Bacmann, A., Baudry, A., Benedettini, M., Benz, A., Black, J., Boogert, A., Bottinelli, S., Cabrit, S., Caselli, P., Castets, A., Caux, E., Cernicharo, J., Codella, C., Coutens, A., Crimier, N., Crockett, N. R., Daniel, F., Demyk, K., Dominic, C., Dubernet, M. -L., Emprechtinger, M., Encrenaz, P., Falgarone, E., Fuente, A., Gerin, M., Giesen, T. F., Goicoechea, J. R., Helmich, F., Hennebelle, P., Henning, Th., Herbst, E., Hily-Blant, P., Hjalmarson, A., Hollenbach, D., Jack, T., Joblin, C., Johnstone, D., Kahane, C., Kama, M., Kaufman, M., Klotz, A., Langer, W. D., Larsson, B., Le Bourlot, J., Lefloch, B., Le Petit, F., Li, D., Liseau, R., Lord, S. D., Lorenzani, A., Maret, S., Martin, P. G., Melnick, G. J., Menten, K. M., Morris, P., Murphy, J. A., Nagy, Z., Nisini, B., Ossenkopf, V., Pacheco, S., Pagani, L., Parise, Berengere, Perault, M., Plume, R., Qin, S. -L., Roueff, E., Salez, M., Sandqvist, A., Saraceno, P., Schlemmer, S., Schuster, K., Snell, R., Stutzki, J., Tielens, A., Trappe, N., van der Tak, F. F. S., van der Wiel, M. H. D., van Dishoeck, E., Vastel, C., Viti, S., Wakelam, V., Walters, A., Wang, S., Wyrowski, F., Yorke, H. W., Yu, S., Zmuidzinas, J., Delorme, Y., Desbat, J. -P., Guesten, R., Krieg, J. -M., Delforge, B. +104 moreopenaire Herschel /HIFI spectral line survey of the Orion Bar
, 2017 International ...Nagy, Z., Choi, Y., Ossenkopf-Okada, V., van Der Tak, F., Bergin, E., Gerin, M., Joblin, C., Röllig, M., Simon, R., Stutzki, J. +9 moreopenaire +2 more sources
