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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005632naa a2201213 4500
001oai:DiVA.org:su-51506
003SwePub
008110110s2010 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-515062 URI
024a https://doi.org/10.1051/0004-6361/2010145822 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Codella, C.4 aut
2451 0a The CHESS spectral survey of star forming regions :b Peering into the protostellar shock L1157-B1. I. Shock chemical complexity
264 c 2010-07-16
264 1b EDP Sciences,c 2010
338 a print2 rdacarrier
500 a authorCount :69
520 a We present the first results of the unbiased survey of the L1157-B1 bow shock, obtained with HIFI in the framework of the key program Chemical HErschel Survey of Star forming regions (CHESS). The L1157 outflow is driven by a low-mass Class 0 protostar and is considered the prototype of the so-called chemically active outflows. The bright blue-shifted bow shock B1 is the ideal laboratory for studying the link between the hot (~1000-2000 K) component traced by H2 IR-emission and the cold (~10-20 K) swept-up material. The main aim is to trace the warm gas chemically enriched by the passage of a shock and to infer the excitation conditions in L1157-B1. A total of 27 lines are identified in the 555-636 GHz region, down to an average 3σ level of 30 mK. The emission is dominated by CO(5-4) and H2O(110-101) transitions, as discussed by Lefloch et al. in this volume. Here we report on the identification of lines from NH3, H2CO, CH3OH, CS, HCN, and HCO+. The comparison between the profiles produced by molecules released from dust mantles (NH3, H2CO, CH3OH) and that of H2O is consistent with a scenario in which water is also formed in the gas-phase in high-temperature regions where sputtering or grain-grain collisions are not efficient. The high excitation range of the observed tracers allows us to infer, for the first time for these species, the existence of a warm (≥200 K) gas component coexisting in the B1 bow structure with the cold and hot gas detected from ground. Herschel is an ESA space observatory with science instruments provided by European-led principal Investigator consortia and with important participation from NASA.Table 1 is only available in electronic form at http://www.aanda.org
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a ISM: individual objects: L1157
653 a ISM: molecules
653 a stars: formation
653 a Astronomy and astrophysics
653 a Astronomi och astrofysik
653 a Astronomy
653 a astronomi
700a Lefloch, B.4 aut
700a Ceccarelli, C.4 aut
700a Cernicharo, J.4 aut
700a Caux, E.4 aut
700a Lorenzani, A.4 aut
700a Viti, S.4 aut
700a Hily-Blant, P.4 aut
700a Parise, B.4 aut
700a Maret, S.4 aut
700a Nisini, B.4 aut
700a Caselli, P.4 aut
700a Cabrit, S.4 aut
700a Pagani, L.4 aut
700a Benedettini, M.4 aut
700a Boogert, A.4 aut
700a Gueth, F.4 aut
700a Melnick, G.4 aut
700a Neufeld, D.4 aut
700a Pacheco, S.4 aut
700a Salez, M.4 aut
700a Schuster, K.4 aut
700a Bacmann, A.4 aut
700a Baudry, A.4 aut
700a Bell, T.4 aut
700a Bergin, E. A.4 aut
700a Blake, G.4 aut
700a Bottinelli, S.4 aut
700a Castets, A.4 aut
700a Comito, C.4 aut
700a Coutens, A.4 aut
700a Crimier, N.4 aut
700a Dominik, C.4 aut
700a Demyk, K.4 aut
700a Encrenaz, P.4 aut
700a Falgarone, E.4 aut
700a Fuente, A.4 aut
700a Gerin, M.4 aut
700a Goldsmith, P.4 aut
700a Helmich, F.4 aut
700a Hennebelle, P.4 aut
700a Henning, Th.4 aut
700a Herbst, E.4 aut
700a Jacq, T.4 aut
700a Kahane, C.4 aut
700a Kama, M.4 aut
700a Klotz, A.4 aut
700a Langer, W.4 aut
700a Lis, D.4 aut
700a Lord, S.4 aut
700a Pearson, J.4 aut
700a Phillips, T.4 aut
700a Saraceno, P.4 aut
700a Schilke, P.4 aut
700a Tielens, X.4 aut
700a van der Tak, F.4 aut
700a van der Wiel, M.4 aut
700a Vastel, C.4 aut
700a Wakelam, V.4 aut
700a Walters, A.4 aut
700a Wyrowski, F.4 aut
700a Yorke, H.4 aut
700a Borys, C.4 aut
700a Delorme, Y.4 aut
700a Kramer, C.4 aut
700a Larsson, Bengtu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)bem
700a Mehdi, I.4 aut
700a Ossenkopf, V.4 aut
700a Stutzki, J.4 aut
710a Stockholms universitetb Institutionen för astronomi4 org
773t Astronomy and Astrophysicsd : EDP Sciencesg 518, s. L112-q 518<L112-x 0004-6361x 1432-0746
856u https://www.aanda.org/articles/aa/pdf/2010/10/aa14582-10.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-51506
8564 8u https://doi.org/10.1051/0004-6361/201014582

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