Lens models of Herschel-selected galaxies from high-resolution near-IR observations
We present Keck-Adaptive Optics and Hubble Space Telescope high resolution near-infrared (IR) imaging for 500 μm bright candidate lensing systems identified by the Herschel Multi-tiered Extragalactic Survey and Herschel Astrophysical Terahertz Large Area Survey. Out of 87 candidates with near-IR ima...
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American Astronomical Society
2014
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| Online Access: | https://eprints.nottingham.ac.uk/42373/ |
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| author | Calanog, J.A. Fu, Hai Cooray, A. Wardlow, J. Ma, B. Amber, S. Baker, A.J. Baes, M. Bock, J. Bourne, N. Bussmann, R.S. Casey, C.M. Chapman, S.C. Clements, D.L. Conley, A. Dannerbauer, H. De Zotti, G. Dunne, L. Dye, S. Eales, S. Farrah, D. Furlanetto, C. Harris, A.I. Ivison, R.J. Kim, S. Maddox, S.J. Magdis, G. Messias, H. Michałowski, M.J. Negrello, M. Nightingale, J. O'Bryan, J.M. Oliver, S.J. Riechers, D. Scott, D. Serjeant, S. Simpson, J. Smith, M. Timmons, N. Thacker, C. Valiante, E. Vieira, J.D. |
| author_facet | Calanog, J.A. Fu, Hai Cooray, A. Wardlow, J. Ma, B. Amber, S. Baker, A.J. Baes, M. Bock, J. Bourne, N. Bussmann, R.S. Casey, C.M. Chapman, S.C. Clements, D.L. Conley, A. Dannerbauer, H. De Zotti, G. Dunne, L. Dye, S. Eales, S. Farrah, D. Furlanetto, C. Harris, A.I. Ivison, R.J. Kim, S. Maddox, S.J. Magdis, G. Messias, H. Michałowski, M.J. Negrello, M. Nightingale, J. O'Bryan, J.M. Oliver, S.J. Riechers, D. Scott, D. Serjeant, S. Simpson, J. Smith, M. Timmons, N. Thacker, C. Valiante, E. Vieira, J.D. |
| author_sort | Calanog, J.A. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We present Keck-Adaptive Optics and Hubble Space Telescope high resolution near-infrared (IR) imaging for 500 μm bright candidate lensing systems identified by the Herschel Multi-tiered Extragalactic Survey and Herschel Astrophysical Terahertz Large Area Survey. Out of 87 candidates with near-IR imaging, 15 (~17%) display clear near-IR lensing morphologies. We present near-IR lens models to reconstruct and recover basic rest-frame optical morphological properties of the background galaxies from 12 new systems. Sources with the largest near-IR magnification factors also tend to be the most compact, consistent with the size bias predicted from simulations and previous lensing models for submillimeter galaxies (SMGs). For four new sources that also have high-resolution submillimeter maps, we test for differential lensing between the stellar and dust components and find that the 880 μm magnification factor (μ880) is ~1.5 times higher than the near-IR magnification factor (μNIR), on average. We also find that the stellar emission is ~2 times more extended in size than dust. The rest-frame optical properties of our sample of Herschel-selected lensed SMGs are consistent with those of unlensed SMGs, which suggests that the two populations are similar. |
| first_indexed | 2025-11-14T19:48:33Z |
| format | Article |
| id | nottingham-42373 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:33Z |
| publishDate | 2014 |
| publisher | American Astronomical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-423732020-05-04T16:59:01Z https://eprints.nottingham.ac.uk/42373/ Lens models of Herschel-selected galaxies from high-resolution near-IR observations Calanog, J.A. Fu, Hai Cooray, A. Wardlow, J. Ma, B. Amber, S. Baker, A.J. Baes, M. Bock, J. Bourne, N. Bussmann, R.S. Casey, C.M. Chapman, S.C. Clements, D.L. Conley, A. Dannerbauer, H. De Zotti, G. Dunne, L. Dye, S. Eales, S. Farrah, D. Furlanetto, C. Harris, A.I. Ivison, R.J. Kim, S. Maddox, S.J. Magdis, G. Messias, H. Michałowski, M.J. Negrello, M. Nightingale, J. O'Bryan, J.M. Oliver, S.J. Riechers, D. Scott, D. Serjeant, S. Simpson, J. Smith, M. Timmons, N. Thacker, C. Valiante, E. Vieira, J.D. We present Keck-Adaptive Optics and Hubble Space Telescope high resolution near-infrared (IR) imaging for 500 μm bright candidate lensing systems identified by the Herschel Multi-tiered Extragalactic Survey and Herschel Astrophysical Terahertz Large Area Survey. Out of 87 candidates with near-IR imaging, 15 (~17%) display clear near-IR lensing morphologies. We present near-IR lens models to reconstruct and recover basic rest-frame optical morphological properties of the background galaxies from 12 new systems. Sources with the largest near-IR magnification factors also tend to be the most compact, consistent with the size bias predicted from simulations and previous lensing models for submillimeter galaxies (SMGs). For four new sources that also have high-resolution submillimeter maps, we test for differential lensing between the stellar and dust components and find that the 880 μm magnification factor (μ880) is ~1.5 times higher than the near-IR magnification factor (μNIR), on average. We also find that the stellar emission is ~2 times more extended in size than dust. The rest-frame optical properties of our sample of Herschel-selected lensed SMGs are consistent with those of unlensed SMGs, which suggests that the two populations are similar. American Astronomical Society 2014-12-08 Article PeerReviewed Calanog, J.A., Fu, Hai, Cooray, A., Wardlow, J., Ma, B., Amber, S., Baker, A.J., Baes, M., Bock, J., Bourne, N., Bussmann, R.S., Casey, C.M., Chapman, S.C., Clements, D.L., Conley, A., Dannerbauer, H., De Zotti, G., Dunne, L., Dye, S., Eales, S., Farrah, D., Furlanetto, C., Harris, A.I., Ivison, R.J., Kim, S., Maddox, S.J., Magdis, G., Messias, H., Michałowski, M.J., Negrello, M., Nightingale, J., O'Bryan, J.M., Oliver, S.J., Riechers, D., Scott, D., Serjeant, S., Simpson, J., Smith, M., Timmons, N., Thacker, C., Valiante, E. and Vieira, J.D. (2014) Lens models of Herschel-selected galaxies from high-resolution near-IR observations. Astrophysical Journal, 797 (2). p. 138. ISSN 1538-4357 galaxies: star formation; gravitational lensing: strong; submillimeter: galaxies http://iopscience.iop.org/article/10.1088/0004-637X/797/2/138/meta doi:10.1088/0004-637X/797/2/138 doi:10.1088/0004-637X/797/2/138 |
| spellingShingle | galaxies: star formation; gravitational lensing: strong; submillimeter: galaxies Calanog, J.A. Fu, Hai Cooray, A. Wardlow, J. Ma, B. Amber, S. Baker, A.J. Baes, M. Bock, J. Bourne, N. Bussmann, R.S. Casey, C.M. Chapman, S.C. Clements, D.L. Conley, A. Dannerbauer, H. De Zotti, G. Dunne, L. Dye, S. Eales, S. Farrah, D. Furlanetto, C. Harris, A.I. Ivison, R.J. Kim, S. Maddox, S.J. Magdis, G. Messias, H. Michałowski, M.J. Negrello, M. Nightingale, J. O'Bryan, J.M. Oliver, S.J. Riechers, D. Scott, D. Serjeant, S. Simpson, J. Smith, M. Timmons, N. Thacker, C. Valiante, E. Vieira, J.D. Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title | Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title_full | Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title_fullStr | Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title_full_unstemmed | Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title_short | Lens models of Herschel-selected galaxies from high-resolution near-IR observations |
| title_sort | lens models of herschel-selected galaxies from high-resolution near-ir observations |
| topic | galaxies: star formation; gravitational lensing: strong; submillimeter: galaxies |
| url | https://eprints.nottingham.ac.uk/42373/ https://eprints.nottingham.ac.uk/42373/ https://eprints.nottingham.ac.uk/42373/ |