Bibcode
Rigopoulou, D.; Roseboom, I. G.; Rowan-Robinson, M.; Zemcov, M.; Yan, L.; Xu, C. K.; Wang, L.; Scott, D.; Schulz, B.; Seymour, N.; Scoville, N.; Riechers, D.; Pohlen, M.; Viero, M.; Vieira, J. D.; Trichas, M.; Symeonidis, M.; Strom, A.; Shupe, D. L.; Smith, A. J.; Streblyanska, A.; Vaccari, M.; Pérez-Fournon, I.; Pearson, C. P.; Papageorgiou, A.; Panuzzo, P.; Page, M. J.; Omont, A.; Oliver, S. J.; O'Halloran, B.; Nguyen, H. T.; Neri, R.; Negrello, M.; Martínez-Navajas, P.; Marsden, G.; Marchetti, L.; Levenson, L.; Lagache, G.; Kim, S.; Ivison, R. J.; Ibar, E.; Hyde, A.; Hopwood, R.; Hatziminaoglou, E.; Harris, A. I.; Gurwell, M. A.; Griffin, M.; González Solares, E. A.; Glenn, J.; Gavazzi, R.; Fu, Hai; Frazer, C.; Frayer, D. T.; Franceschini, A.; Ferrero, P.; Farrah, D.; Eales, S.; Dye, S.; Dowell, C. D.; Cox, P.; Conley, A.; Clements, D. L.; Chapman, S. C.; Chapin, E.; Chanial, P.; Cava, A.; Castro-Rodríguez, N.; Casey, C. M.; Carpenter, J. M.; Calanog, J.; Cabrera-Lavers, A.; Bussmann, R. S.; Burgarella, D.; Buat, V.; Bridge, C.; Boselli, A.; Bock, J.; Blundell, R.; Béthermin, M.; Baker, A. J.; Aussel, H.; Arumugam, V.; Amblard, A.; De Bernardis, Francesco; Cooray, Asantha; Wardlow, Julie L.
Referencia bibliográfica
The Astrophysical Journal, Volume 762, Issue 1, article id. 59, 28 pp. (2013).
Advertised on:
1
2013
Revista
Número de citas
169
Número de citas referidas
154
Descripción
We present a list of 13 candidate gravitationally lensed submillimeter
galaxies (SMGs) from 95 deg2 of the Herschel Multi-tiered
Extragalactic Survey, a surface density of 0.14 ± 0.04
deg–2. The selected sources have 500 μm flux
densities (S 500) greater than 100 mJy. Gravitational lensing
is confirmed by follow-up observations in 9 of the 13 systems (70%), and
the lensing status of the four remaining sources is undetermined. We
also present a supplementary sample of 29 (0.31 ± 0.06
deg–2) gravitationally lensed SMG candidates with S
500 = 80-100 mJy, which are expected to contain a higher
fraction of interlopers than the primary candidates. The number counts
of the candidate lensed galaxies are consistent with a simple
statistical model of the lensing rate, which uses a foreground matter
distribution, the intrinsic SMG number counts, and an assumed SMG
redshift distribution. The model predicts that 32%-74% of our S
500 >= 100 mJy candidates are strongly gravitationally
lensed (μ >= 2), with the brightest sources being the most robust;
this is consistent with the observational data. Our statistical model
also predicts that, on average, lensed galaxies with S 500 =
100 mJy are magnified by factors of ~9, with apparently brighter
galaxies having progressively higher average magnification, due to the
shape of the intrinsic number counts. 65% of the sources are expected to
have intrinsic 500 μm flux densities less than 30 mJy. Thus, samples
of strongly gravitationally lensed SMGs, such as those presented here,
probe below the nominal Herschel detection limit at 500 μm. They are
good targets for the detailed study of the physical conditions in
distant dusty, star-forming galaxies, due to the lensing magnification,
which can lead to spatial resolutions of ~0.''01 in the source plane.
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