Spitzer imaging of Herschel-atlas gravitationally lensed submillimeter sources

Astrophysical Journal Letters 728:1 PART II (2011)

Authors:

R Hopwood, J Wardlow, A Cooray, AA Khostovan, S Kim, M Negrello, E Da Cunha, D Burgarella, I Aretxaga, R Auld, M Baes, E Barton, F Bertoldi, DG Bonfield, R Blundell, S Buttiglione, A Cava, DL Clements, J Cooke, H Dannerbauer, A Dariush, G De Zotti, J Dunlop, L Dunne, S Dye, S Eales, J Fritz, D Frayer, MA Gurwell, DH Hughes, E Ibar, RJ Ivison, MJ Jarvis, G Lagache, L Leeuw, S Maddox, MJ Michałlowski, A Omont, E Pascale, M Pohlen, E Rigby, G Rodighiero, D Scott, S Serjeant, I Smail, DJB Smith, P Temi, MA Thompson, I Valtchanov, P Van Der Werf, A Verma, JD Vieira

Abstract:

We present physical properties of two submillimeter selected gravitationally lensed sources, identified in the Herschel Astrophysical Terahertz Large Area Survey. These submillimeter galaxies (SMGs) have flux densities >100 mJy at 500 μm, but are not visible in existing optical imaging. We fit light profiles to each component of the lensing systems in Spitzer IRAC 3.6 and 4.5 μm data and successfully disentangle the foreground lens from the background source in each case, providing important constraints on the spectral energy distributions (SEDs) of the background SMG at rest-frame optical-near-infrared wavelengths. The SED fits show that these two SMGs have high dust obscuration with AV ∼ 4-5 and star formation rates of ∼ 100 M⊙ yr-1. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies. © 2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A.

Search for a new heavy gauge boson W′ with event signature electron+missing transverse energy in pp̄ collisions at √s=1.96TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 83:3 (2011)

Authors:

T Aaltonen, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, P Barria, P Bartos, M Bauce, G Bauer, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, KR Bland, B Blumenfeld, A Bocci, A Bodek, D Bortoletto, J Boudreau, A Boveia, B Brau, L Brigliadori, A Brisuda, C Bromberg, E Brucken, M Bucciantonio, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, WH Chung, YS Chung, CI Ciobanu, MA Ciocci, A Clark, G Compostella, ME Convery, J Conway, M Corbo, M Cordelli, CA Cox, DJ Cox, F Crescioli, C Cuenca Almenar, J Cuevas, R Culbertson

Abstract:

We present a search for a new heavy charged vector boson W′ decaying to an electron-neutrino pair in pp̄ collisions at a center-of-mass energy of 1.96 TeV. The data were collected with the CDF II detector and correspond to an integrated luminosity of 5.3fb-1. No significant excess above the standard model expectation is observed and we set upper limits on σ•B(W′→eν). Assuming standard model couplings to fermions and the neutrino from the W′ boson decay to be light, we exclude a W′ boson with mass less than 1.12TeV/c2 at the 95% confidence level. © 2011 American Physical Society.

On the nature of the progenitors of three Type II‐P supernovae: 2004et, 2006my and 2006ov

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 410:4 (2011) 2767-2786

Authors:

RM Crockett, SJ Smartt, A Pastorello, JJ Eldridge, AW Stephens, JR Maund, S Mattila

Radiatively efficient accreting black holes in the hard state: the case study of H1743-322

(2011)

Authors:

M Coriat, S Corbel, L Prat, JCA Miller-Jones, D Cseh, AK Tzioumis, C Brocksopp, J Rodriguez, RP Fender, GR Sivakoff

Steady jets from radiatively efficient hard states in GRS 1915+105

(2011)

Authors:

A Rushton, R Spencer, R Fender, G Pooley