Results 21 to 30 of about 121 (117)

DEUTERATED MOLECULES IN ORION KL FROMHERSCHEL/HIFI [PDF]

The Astrophysical Journal, 2013
39 pages, 12 figures. Accepted for publication in ApJ.
Neill, Justin L., Crockett, Nathan R., Bergin, Edwin A., Pearson, John C., Xu, Li-Hong   +4 more
openaire   +2 more sources

Herschel observations of extraordinary sources: full Herschel/HIFI molecular line survey of Sagittarius B2(M) [PDF]

Astronomy & Astrophysics, 2021
Context. We present a full analysis of a broadband spectral line survey of Sagittarius B2 (Main), one of the most chemically rich regions in the Galaxy located within the giant molecular cloud complex Sgr B2 in the central molecular zone. Aims. Our goal is to derive the molecular abundances and temperatures of the high-mass star-forming region Sgr B2(M)
T. Möller, P. Schilke, A. Schmiedeke, E. A. Bergin, D. C. Lis, Á. Sánchez-Monge, A. Schwörer, C. Comito   +7 more
openaire   +4 more sources

Herschel/HIFI discovery of interstellar chloronium (H₂Cl⁺) [PDF]

Astronomy and Astrophysics, 2010
Accepted for publication in A&A, HIFI Special Issue; 4 pages, 2 figures, 1 ...
Lis, D. C., Pearson, J. C., Neufeld, D. A., Schilke, P., Müller, 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, Alain, Benedettini, M., Benz, A., Black, J., Boogert, A., Bottinelli, S., Cabrit, S., Caselli, P., Castets, Alain, 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, Pierre, Hjalmarson, Å., Hollenbach, D., Jacq, 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, B., Pérault, 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, Valentine, Walters, A., Wang, S., Wyrowski, F., Yorke, H. W., Yu, S., Zmuidzinas, J., Delorme, Y., Desbat, J.-P., Güsten, R., Krieg, J.-M., Delforge, B.   +104 more
openaire   +6 more sources

Herschel/HIFI observations of ionised carbon in theβPictoris debris disk [PDF]

Astronomy & Astrophysics, 2014
10 pages, 7 figures, published in A&A. v2: Revised section 5.4 and figure 6, results unchanged. Changed x- and y-axis of figure 5. Some other minor changes.
Cataldi, G., Brandeker, A., Olofsson, G., Larsson, B., Liseau, R., Blommaert, J., Fridlund, M., Ivison, R., Pantin, E., Sibthorpe, B., Vandenbussche, B., Wu, Y.   +11 more
openaire   +2 more sources

Uranus’s and Neptune’s Stratospheric Water Abundance and Vertical Profile from Herschel-HIFI* [PDF]

The Planetary Science Journal, 2022
Abstract Here we present new constraints on Uranus’s and Neptune’s externally sourced stratospheric water abundance using disk-averaged observations of the 557 GHz emission line from Herschel’s Heterodyne Instrument for the Far-Infrared. Derived stratospheric column water abundances are
N. A. Teanby, P. G. J. Irwin, M. Sylvestre, C. A. Nixon, M. A. Cordiner   +4 more
openaire   +4 more sources

Herschel/HIFI observations of red supergiants and yellow hypergiants [PDF]

Astronomy & Astrophysics, 2012
Red supergiant stars (RSGs) and yellow hypergiant stars (YHGs) are believed to be the high-mass counterparts of stars in the AGB and early post-AGB phases. We study the mass-loss in the post main-sequence evolution of massive stars, through the properties of their envelopes in the intermediate and warm gas layers.
Teyssier, D., Quintana-Lacaci, G., Marston, A.P., Bujarrabal, V., Alcolea, J., Cernicharo, J., Decin, L., Dominik, C., Justtanont, K., de Koter, A., Melnick, G., Menten, K.M., Neufeld, D.A., Olofsson, H., Planesas, P., Schmidt, M., Soria-Ruiz, R., Schöier, F.L., Szczerba, R., Waters, L.B.F.M.   +19 more
openaire   +5 more sources

The first results from the Herschel-HIFI mission [PDF]

Advances in Space Research, 2012
This paper contains a summary of the results from the first years of observations with the HIFI instrument onboard ESA's Herschel space observatory. The paper starts by outlining the goals and possibilities of far-infrared and submillimeter astronomy, the limitations of the Earth's atmosphere, and the scientific scope of the Herschel-HIFI mission.
openaire   +2 more sources

Herschel/HIFI line surveys: Discovery of interstellar chloronium (H2Cl+) [PDF]

AIP Conference Proceedings, 2015
Prior to the launch of Herschel, HCl was the only chlorine-containing molecule detected in the interstellar medium (ISM). However, chemical models have identified chloronium, H_2Cl^+, as a relatively abundant species that is potentially detectable. H_2Cl^+ was predicted to be most abundant in the environments where the ultraviolet radiation is strong ...
openaire   +2 more sources

Herschel/HIFI observations of O-rich AGB stars: molecular inventory [PDF]

Astronomy & Astrophysics, 2012
Spectra, taken with the heterodyne instrument, HIFI, aboard the Herschel Space Observatory, of O-rich asymptotic giant branch (AGB) stars which form part of the guaranteed time key program HIFISTARS are presented. The aim of this program is to study the dynamical structure, mass-loss driving mechanism, and chemistry of the outflows from AGB stars as a ...
Justtanont, K., Khouri, T., Maercker, M., Alcolea, J., Decin, L., Olofsson, H., Schöier, F.L., Bujarrabal, V., Marston, A.P., Teyssier, D., Cernicharo, J., Dominik, C., de Koter, A., Melnick, G., Menten, K.M., Neufeld, D., Planesas, P., Schmidt, M., Szczerba, R., Waters, R.   +19 more
openaire   +4 more sources

PROBING THE RADIAL TEMPERATURE STRUCTURE OF PROTOPLANETARY DISKS WITH HERSCHEL /HIFI [PDF]

The Astrophysical Journal, 2013
Herschel/HIFI spectroscopic observations of CO J=10-9, CO J=16-15 and [CII] towards HD 100546 are presented. The objective is to resolve the velocity profile of the lines to address the emitting region of the transitions and directly probe the distribution of warm gas in the disk.
Fedele, D., Bruderer, S., Van Dishoeck, E., Hogerheijde, M., Panic, O., Brown, J., Henning, T.   +6 more
openaire   +3 more sources