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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.
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IDENTIFICATION OF A POPULATION OF X-RAY-EMITTING MASSIVE STARS IN THE GALACTIC PLANE

The Astrophysical Journal American Astronomical Society 727:2 (2011) 105

Authors:

Gemma E Anderson, BM Gaensler, David L Kaplan, Bettina Posselt, Patrick O Slane, Stephen S Murray, Jon C Mauerhan, Robert A Benjamin, Crystal L Brogan, Deepto Chakrabarty, Jeremy J Drake, Janet E Drew, Jonathan E Grindlay, Jaesub Hong, T Joseph W Lazio, Julia C Lee, Danny TH Steeghs, Marten H van Kerkwijk
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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
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Steady jets from radiatively efficient hard states in GRS 1915+105

(2011)

Authors:

A Rushton, R Spencer, R Fender, G Pooley
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VLBI constraints on the "jet-line" of Cygnus X-1

(2011)

Authors:

Anthony Rushton, James Miller-Jones, Zsolt Paragi, Thomas Maccarone, Guy Pooley, Valeriu Tudose, Rob Fender, Ralph Spencer, Vivek Dhawan, Michael Garrett
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