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Observation of H2O in a strongly lensed Herschel -ATLAS source at z = 2.3

Astronomy and Astrophysics 530 (2011)

Authors:

A Omont, R Neri, P Cox, R Lupu, M Guélin, P Van Der Werf, A Weiß, R Ivison, M Negrello, L Leeuw, M Lehnert, I Smail, A Verma, AJ Baker, A Beelen, JE Aguirre, M Baes, F Bertoldi, DL Clements, A Cooray, K Coppin, H Dannerbauer, G De Zotti, S Dye, N Fiolet, D Frayer, R Gavazzi, D Hughes, M Jarvis, M Krips, MJ Michałowski, EJ Murphy, D Riechers, S Serjeant, AM Swinbank, P Temi, M Vaccari, JD Vieira, R Auld, B Buttiglione, A Cava, A Dariush, L Dunne, SA Eales, J Fritz, H Gomez, E Ibar, S Maddox, E Pascale, M Pohlen, E Rigby, DJB Smith, J Bock, CM Bradford, J Glenn, KS Scott, J Zmuidzinas

Abstract:

The Herschel survey, H-ATLAS, with its large areal coverage, has recently discovered a number of bright, strongly lensed high-z submillimeter galaxies. The strong magnification makes it possible to study molecular species other than CO, which are otherwise difficult to observe in high-z galaxies. Among the lensed galaxies already identified by H-ATLAS, the source J090302.9-014127B (SDP.17b) at z = 2.305 is remarkable because of its excitation conditions and a tentative detection of the H2O 202-111 emission line (Lupu et al. 2010, ApJ, submitted). We report observations of this line in SDP.17b using the IRAM interferometer equipped with its new 277-371 GHz receivers. The H2O line is detected at a redshift of z = 2.3049 ± 0.0006, with a flux of 7.8 ± 0.5 Jy km s-1 and a FWHM of 250 ± 60 km s-1. The new flux is 2.4 times weaker than the previous tentative detection, although both remain marginally consistent within 1.6σ. The intrinsic line luminosity and ratio of H2O(2 02 - 111)/CO(8 - 7) are comparable with those of the nearby starburst/enshrouded-AGN Mrk 231, and the ratio I(H2O)/L FIR is even higher, suggesting that SDP.17b could also host a luminous AGN. The detection of a strong H2O 202 - 1 11 line in SDP.17b implies an efficient excitation mechanism of the water levels that must occur in very dense and warm interstellar gas probably similar to Mrk 231. © 2011 ESO.
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THE SINS SURVEY OF z ∼ 2 GALAXY KINEMATICS: PROPERTIES OF THE GIANT STAR-FORMING CLUMPS**Based on observations at the Very Large Telescope (VLT) of the European Southern Observatory (ESO), Paranal, Chile (ESO program IDs 076.A-0527, 079.A-0341, 080.A-0330, 080.A-0339, 080.A-0635, 183.A-0781).

The Astrophysical Journal American Astronomical Society 733:2 (2011) 101

Authors:

R Genzel, S Newman, T Jones, NM Förster Schreiber, K Shapiro, S Genel, SJ Lilly, A Renzini, LJ Tacconi, N Bouché, A Burkert, G Cresci, P Buschkamp, CM Carollo, D Ceverino, R Davies, A Dekel, F Eisenhauer, E Hicks, J Kurk, D Lutz, C Mancini, T Naab, Y Peng, A Sternberg, D Vergani, G Zamorani
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The VLT-FLAMES Tarantula Survey

Astronomy & Astrophysics EDP Sciences 530 (2011) a108

Authors:

CJ Evans, WD Taylor, V Hénault-Brunet, H Sana, A de Koter, S Simón-Díaz, G Carraro, T Bagnoli, N Bastian, JM Bestenlehner, AZ Bonanos, E Bressert, I Brott, MA Campbell, M Cantiello, JS Clark, E Costa, PA Crowther, SE de Mink, E Doran, PL Dufton, PR Dunstall, K Friedrich, M Garcia, M Gieles, G Gräfener, A Herrero, ID Howarth, RG Izzard, N Langer, DJ Lennon, J Maíz Apellániz, N Markova, F Najarro, J Puls, OH Ramirez, C Sabín-Sanjulián, SJ Smartt, VE Stroud, J Th van Loon, JS Vink, NR Walborn
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The VLT-FLAMES survey of massive stars: atmospheric parameters and rotational velocity distributions for B-type stars in the Magellanic Clouds⋆ (Corrigendum)

Astronomy & Astrophysics EDP Sciences 530 (2011) c1

Authors:

I Hunter, DJ Lennon, PL Dufton, C Trundle, S Simón-Díaz, SJ Smartt, RSI Ryans, CJ Evans
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Search for supersymmetry in pp collisions at √s=7TeV in events with two photons and missing transverse energy

Physical Review Letters 106:21 (2011)

Authors:

S Chatrchyan, V Khachatryan, AM Sirunyan, A Tumasyan, W Adam, T Bergauer, M Dragicevic, J Erö, C Fabjan, M Friedl, R Frühwirth, VM Ghete, J Hammer, S Hänsel, M Hoch, N Hörmann, J Hrubec, M Jeitler, G Kasieczka, W Kiesenhofer, M Krammer, D Liko, I Mikulec, M Pernicka, H Rohringer, R Schöfbeck, J Strauss, F Teischinger, P Wagner, W Waltenberger, G Walzel, E Widl, CE Wulz, V Mossolov, N Shumeiko, J Suarez Gonzalez, L Benucci, EA De Wolf, X Janssen, T Maes, L Mucibello, S Ochesanu, B Roland, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, N Van Remortel, F Blekman, S Blyweert, J D'hondt, O Devroede, R Gonzalez Suarez, A Kalogeropoulos, J Maes, M Maes, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, O Charaf, B Clerbaux, G De Lentdecker, V Dero, APR Gay, GH Hammad, T Hreus, PE Marage, L Thomas, C Vander Velde, P Vanlaer, V Adler, A Cimmino, S Costantini, M Grunewald, B Klein, J Lellouch, A Marinov, J Mccartin, D Ryckbosch, F Thyssen, M Tytgat, L Vanelderen, P Verwilligen, S Walsh, N Zaganidis, S Basegmez, G Bruno, J Caudron, L Ceard, E Cortina Gil, J De Favereau De Jeneret, C Delaere, D Favart, A Giammanco, G Grégoire, J Hollar, V Lemaitre, J Liao, O Militaru

Abstract:

A search for supersymmetry in the context of general gauge-mediated breaking with the lightest neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest is presented. The data sample corresponds to an integrated luminosity of 36pb-1 recorded by the CMS experiment at the LHC. The search is performed by using events containing two or more isolated photons, at least one hadronic jet, and significant missing transverse energy. No excess of events at high missing transverse energy is observed. Upper limits on the signal cross section for general gauge-mediated supersymmetry between 0.3 and 1.1 pb at the 95% confidence level are determined for a range of squark, gluino, and neutralino masses, excluding supersymmetry parameter space that was inaccessible to previous experiments. © 2011 American Physical Society.
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