DISCOVERY OF A MULTIPLY LENSED SUBMILLIMETER GALAXY IN EARLY HerMES HERSCHEL/SPIRE* DATA
| Title | DISCOVERY OF A MULTIPLY LENSED SUBMILLIMETER GALAXY IN EARLY HerMES HERSCHEL/SPIRE* DATA |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Conley, A, Cooray, A, Vieira, JD, Solares, EAG, Kim, S, Aguirre, JE, Amblard, A, Auld, R, Baker, AJ, Beelen, A, Blain, A, Blundell, R, Bock, J, Bradford, CM, Bridge, C, Brisbin, D, Burgarella, D, Carpenter, JM, Chanial, P, Chapin, E, Christopher, N, Clements, DL, Cox, P, Djorgovski, SG, Dowell, CD, Eales, S, Earle, L, Ellsworth-Bowers, TP, Farrah, D, Franceschini, A, Frayer, D, Fu, H, Gavazzi, R, Glenn, J, Griffin, M, Gurwell, MA, Halpern, M, Ibar, E, Ivison, RJ, Jarvis, M, Kamenetzky, J, Krips, M, Levenson, L, Lupu, R, Mahabal, A, Maloney, PD, Maraston, C, Marchetti, L, Marsden, G, Matsuhara, H, Mortier, AMJ, Murphy, E, Naylor, BJ, Neri, R, Nguyen, HT, Oliver, SJ, Omont, A, Page, MJ, Papageorgiou, A, Pearson, CP, Perez-Fournon, I, Pohlen, M, Rangwala, N, Rawlings, JI, Raymond, G, Riechers, D, Rodighiero, G, Roseboom, IG, Rowan-Robinson, M, Schulz, B, Scott, D, Scott, K, Serra, P, Seymour, N, Shupe, DL, Smith, AJ, Symeonidis, M, Tugwell, KE, Vaccari, M, Valiante, E, Valtchanov, I, Verma, A, Viero, MP, Vigroux, L, Wang, L, Wiebe, D, Wright, G, Xu, CK, Zeimann, G, Zemcov, M, Zmuidzinas, J |
| Journal | Astrophysical Journal Letters |
| Volume | 732 |
| Date Published | May |
| ISBN Number | 2041-8205 |
| Accession Number | WOS:000293133200017 |
| Abstract | We report the discovery of a bright (f (250 mu m) > 400 mJy), multiply lensed submillimeter galaxy HERMES J105751.1+573027 in Herschel/SPIRE Science Demonstration Phase data from the HerMES project. Interferometric 880 mu m Submillimeter Array observations resolve at least four images with a large separation of similar to 9 ''. A high-resolution adaptive optics K(p) image with Keck/NIRC2 clearly shows strong lensing arcs. Follow-up spectroscopy gives a redshift of z = 2.9575, and the lensing model gives a total magnification of mu similar to 11 +/-1. The large image separation allows us to study the multi-wavelength spectral energy distribution (SED) of the lensed source unobscured by the central lensing mass. The far-IR/millimeter-wave SED is well described by a modified black-body fit with an unusually warm dust temperature, 88 +/- 3 K. We derive a lensing-corrected total IR luminosity of (1.43 +/- 0.09) x 10(13) L(circle dot), implying a star formation rate of similar to 2500 M(circle dot) yr(-1). However, models primarily developed from brighter galaxies selected at longer wavelengths are a poor fit to the full optical-to-millimeter SED. A number of other strongly lensed systems have already been discovered in early Herschel data, and many more are expected as additional data are collected. |
