Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources

R. Hopwood; J. Wardlow; A. Cooray; A. A. Khostovan; S. Kim; M. Negrello; E. da Cunha; D. Burgarella; I. Aretxaga; R. Auld; M. Baes; E. Barton; F. Bertoldi; D. G. Bonfield; R. Blundell; S. Buttiglione; A. Cava; D. L. Clements; J. Cooke; H. Dannerbauer; A. Dariush; G. de Zotti; J. Dunlop; L. Dunne; S. Dye; S. Eales; J. Fritz; D. Frayer; M. A. Gurwell; D. H. Hughes; E. Ibar; R. J. Ivison; M. J. Jarvis; G. Lagache; L. Leeuw; S. Maddox; M. J. Michałowski; A. Omont; E. Pascale; M. Pohlen; E. Rigby; G. Rodighiero; D. Scott; S. Serjeant; I. Smail; D. J. B. Smith; P. Temi; M. A. Thompson; I. Valtchanov; P. van der Werf; A. Verma; J. D. Vieira

doi:10.1088/2041-8205/728/1/L4

Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources

R. Hopwood, J. Wardlow, A. Cooray, A. A. Khostovan, S. Kim, M. Negrello, E. da Cunha, D. Burgarella, I. Aretxaga, R. Auld, M. Baes, E. Barton, F. Bertoldi, D. G. Bonfield, R. Blundell, S. Buttiglione, A. Cava, D. L. Clements, J. Cooke, H. DannerbauerA. Dariush, G. de Zotti, J. Dunlop, L. Dunne, S. Dye, S. Eales, J. Fritz, D. Frayer, M. A. Gurwell, D. H. Hughes, E. Ibar, R. J. Ivison, M. J. Jarvis, G. Lagache, L. Leeuw, S. Maddox, M. J. Michałowski, A. Omont, E. Pascale, M. Pohlen, E. Rigby, G. Rodighiero, D. Scott, S. Serjeant, I. Smail, D. J. B. Smith, P. Temi, M. A. Thompson, I. Valtchanov, P. van der Werf, A. Verma, J. D. Vieira

School of Physics and Astronomy

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Abstract / Description of output

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 A V ~ 4-5 and star formation rates of ~100 M sun yr-1. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies.

Original language	English
Article number	L4
Journal	Astrophysical Journal Letters
Volume	728
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/728/1/L4
Publication status	Published - 1 Feb 2011

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10.1088/2041-8205/728/1/L4

http://adsabs.harvard.edu/abs/2011ApJ...728L...4H

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Hopwood, R., Wardlow, J., Cooray, A., Khostovan, A. A., Kim, S., Negrello, M., da Cunha, E., Burgarella, D., Aretxaga, I., Auld, R., Baes, M., Barton, E., Bertoldi, F., Bonfield, D. G., Blundell, R., Buttiglione, S., Cava, A., Clements, D. L., Cooke, J., ... Vieira, J. D. (2011). Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources. Astrophysical Journal Letters, 728(1), Article L4. https://doi.org/10.1088/2041-8205/728/1/L4

@article{be985b4a00ce467cb80e6fb899d6e420,

title = "Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources",

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 A V ~ 4-5 and star formation rates of ~100 M sun yr-1. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies.",

author = "R. Hopwood and J. Wardlow and A. Cooray and Khostovan, {A. A.} and S. Kim and M. Negrello and {da Cunha}, E. and D. Burgarella and I. Aretxaga and R. Auld and M. Baes and E. Barton and F. Bertoldi and Bonfield, {D. G.} and R. Blundell and S. Buttiglione and A. Cava and Clements, {D. L.} and J. Cooke and H. Dannerbauer and A. Dariush and {de Zotti}, G. and J. Dunlop and L. Dunne and S. Dye and S. Eales and J. Fritz and D. Frayer and Gurwell, {M. A.} and Hughes, {D. H.} and E. Ibar and Ivison, {R. J.} and Jarvis, {M. J.} and G. Lagache and L. Leeuw and S. Maddox and Micha{\l}owski, {M. J.} and A. Omont and E. Pascale and M. Pohlen and E. Rigby and G. Rodighiero and D. Scott and S. Serjeant and I. Smail and Smith, {D. J. B.} and P. Temi and Thompson, {M. A.} and I. Valtchanov and {van der Werf}, P. and A. Verma and Vieira, {J. D.}",

year = "2011",

month = feb,

day = "1",

doi = "10.1088/2041-8205/728/1/L4",

language = "English",

volume = "728",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

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Hopwood, R, Wardlow, J, Cooray, A, Khostovan, AA, Kim, S, Negrello, M, da Cunha, E, Burgarella, D, Aretxaga, I, Auld, R, Baes, M, Barton, E, Bertoldi, F, Bonfield, DG, Blundell, R, Buttiglione, S, Cava, A, Clements, DL, Cooke, J, Dannerbauer, H, Dariush, A, de Zotti, G, Dunlop, J, Dunne, L, Dye, S, Eales, S, Fritz, J, Frayer, D, Gurwell, MA, Hughes, DH, Ibar, E, Ivison, RJ, Jarvis, MJ, Lagache, G, Leeuw, L, Maddox, S, Michałowski, MJ, Omont, A, Pascale, E, Pohlen, M, Rigby, E, Rodighiero, G, Scott, D, Serjeant, S, Smail, I, Smith, DJB, Temi, P, Thompson, MA, Valtchanov, I, van der Werf, P, Verma, A & Vieira, JD 2011, 'Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources', Astrophysical Journal Letters, vol. 728, no. 1, L4. https://doi.org/10.1088/2041-8205/728/1/L4

TY - JOUR

T1 - Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources

AU - Hopwood, R.

AU - Wardlow, J.

AU - Cooray, A.

AU - Khostovan, A. A.

AU - Kim, S.

AU - Negrello, M.

AU - da Cunha, E.

AU - Burgarella, D.

AU - Aretxaga, I.

AU - Auld, R.

AU - Baes, M.

AU - Barton, E.

AU - Bertoldi, F.

AU - Bonfield, D. G.

AU - Blundell, R.

AU - Buttiglione, S.

AU - Cava, A.

AU - Clements, D. L.

AU - Cooke, J.

AU - Dannerbauer, H.

AU - Dariush, A.

AU - de Zotti, G.

AU - Dunlop, J.

AU - Dunne, L.

AU - Dye, S.

AU - Eales, S.

AU - Fritz, J.

AU - Frayer, D.

AU - Gurwell, M. A.

AU - Hughes, D. H.

AU - Ibar, E.

AU - Ivison, R. J.

AU - Jarvis, M. J.

AU - Lagache, G.

AU - Leeuw, L.

AU - Maddox, S.

AU - Michałowski, M. J.

AU - Omont, A.

AU - Pascale, E.

AU - Pohlen, M.

AU - Rigby, E.

AU - Rodighiero, G.

AU - Scott, D.

AU - Serjeant, S.

AU - Smail, I.

AU - Smith, D. J. B.

AU - Temi, P.

AU - Thompson, M. A.

AU - Valtchanov, I.

AU - van der Werf, P.

AU - Verma, A.

AU - Vieira, J. D.

PY - 2011/2/1

Y1 - 2011/2/1

N2 - 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 A V ~ 4-5 and star formation rates of ~100 M sun yr-1. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies.

AB - 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 A V ~ 4-5 and star formation rates of ~100 M sun yr-1. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies.

UR - http://www.scopus.com/inward/record.url?scp=79960248285&partnerID=8YFLogxK

U2 - 10.1088/2041-8205/728/1/L4

DO - 10.1088/2041-8205/728/1/L4

M3 - Article

SN - 2041-8205

VL - 728

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L4

ER -

Spitzer Imaging of Herschel-atlas Gravitationally Lensed Submillimeter Sources

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