Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy
We present a source-plane reconstruction of a Herschel and Planck-detected gravitationally lensed dusty star-forming galaxy (DSFG) at z = 1.68 using Hubble, Submillimeter Array (SMA), and Keck observations. The background submillimeter galaxy (SMG) is strongly lensed by a foreground galaxy cluster a...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
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American Astronomical Society
2016
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| Online Access: | https://eprints.nottingham.ac.uk/42360/ |
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| author | Timmons, Nicholas Cooray, A. Riechers, D.A. Nayyeri, H. Fu, Hai Jullo, Eric Gladders, Michael D. Baes, Maarten Bussmann, R.S. Calanog, Jae Clements, D.L. da Cunha, E. Dye, S. Eales, S.A. Furlanetto, C. Gonzalez-Nuevo, J. Greenslade, J. Gurwell, M. Messias, Hugo Michalowski, M.J. Oteo, I. Pérez-Fournón, I. Scott, Douglas Valiante, E. |
| author_facet | Timmons, Nicholas Cooray, A. Riechers, D.A. Nayyeri, H. Fu, Hai Jullo, Eric Gladders, Michael D. Baes, Maarten Bussmann, R.S. Calanog, Jae Clements, D.L. da Cunha, E. Dye, S. Eales, S.A. Furlanetto, C. Gonzalez-Nuevo, J. Greenslade, J. Gurwell, M. Messias, Hugo Michalowski, M.J. Oteo, I. Pérez-Fournón, I. Scott, Douglas Valiante, E. |
| author_sort | Timmons, Nicholas |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We present a source-plane reconstruction of a Herschel and Planck-detected gravitationally lensed dusty star-forming galaxy (DSFG) at z = 1.68 using Hubble, Submillimeter Array (SMA), and Keck observations. The background submillimeter galaxy (SMG) is strongly lensed by a foreground galaxy cluster at z = 0.997 and appears as an arc with a length of ∼15″ in the optical images. The continuum dust emission, as seen by SMA, is limited to a single knot within this arc. We present a lens model with source-plane reconstructions at several wavelengths to show the difference in magnification between the stars and dust, and highlight the importance of multi-wavelength lens models for studies involving lensed DSFGs. We estimate the physical properties of the galaxy by fitting the flux densities to model spectral energy distributions leading to a magnification-corrected starformation rate (SFR) of 390 ± 60 M yr−1 and a stellar mass of 1.1 ± 0.4 10 x 11 M. These values are consistent with high-redshift massive galaxies that have formed most of their stars already. The estimated gas-to-baryon fraction, molecular gas surface density, and SFR surface density have values of 0.43 ± 0.13, 350 ± 200 M pc−2, and ~ 12 7 M yr−1 kpc−2, respectively. The ratio of SFR surface density to molecular gas surface density puts this among the most star-forming systems, similar to other measured SMGs and local ULIRGs. |
| first_indexed | 2025-11-14T19:48:30Z |
| format | Article |
| id | nottingham-42360 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:30Z |
| publishDate | 2016 |
| publisher | American Astronomical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-423602020-05-04T18:12:03Z https://eprints.nottingham.ac.uk/42360/ Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy Timmons, Nicholas Cooray, A. Riechers, D.A. Nayyeri, H. Fu, Hai Jullo, Eric Gladders, Michael D. Baes, Maarten Bussmann, R.S. Calanog, Jae Clements, D.L. da Cunha, E. Dye, S. Eales, S.A. Furlanetto, C. Gonzalez-Nuevo, J. Greenslade, J. Gurwell, M. Messias, Hugo Michalowski, M.J. Oteo, I. Pérez-Fournón, I. Scott, Douglas Valiante, E. We present a source-plane reconstruction of a Herschel and Planck-detected gravitationally lensed dusty star-forming galaxy (DSFG) at z = 1.68 using Hubble, Submillimeter Array (SMA), and Keck observations. The background submillimeter galaxy (SMG) is strongly lensed by a foreground galaxy cluster at z = 0.997 and appears as an arc with a length of ∼15″ in the optical images. The continuum dust emission, as seen by SMA, is limited to a single knot within this arc. We present a lens model with source-plane reconstructions at several wavelengths to show the difference in magnification between the stars and dust, and highlight the importance of multi-wavelength lens models for studies involving lensed DSFGs. We estimate the physical properties of the galaxy by fitting the flux densities to model spectral energy distributions leading to a magnification-corrected starformation rate (SFR) of 390 ± 60 M yr−1 and a stellar mass of 1.1 ± 0.4 10 x 11 M. These values are consistent with high-redshift massive galaxies that have formed most of their stars already. The estimated gas-to-baryon fraction, molecular gas surface density, and SFR surface density have values of 0.43 ± 0.13, 350 ± 200 M pc−2, and ~ 12 7 M yr−1 kpc−2, respectively. The ratio of SFR surface density to molecular gas surface density puts this among the most star-forming systems, similar to other measured SMGs and local ULIRGs. American Astronomical Society 2016-09-16 Article PeerReviewed Timmons, Nicholas, Cooray, A., Riechers, D.A., Nayyeri, H., Fu, Hai, Jullo, Eric, Gladders, Michael D., Baes, Maarten, Bussmann, R.S., Calanog, Jae, Clements, D.L., da Cunha, E., Dye, S., Eales, S.A., Furlanetto, C., Gonzalez-Nuevo, J., Greenslade, J., Gurwell, M., Messias, Hugo, Michalowski, M.J., Oteo, I., Pérez-Fournón, I., Scott, Douglas and Valiante, E. (2016) Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy. Astrophysical Journal, 829 (1). pp. 1-11. ISSN 1538-4357 cosmology: observations – galaxies: evolution – infrared: galaxies – submillimeter: galaxies http://iopscience.iop.org/article/10.3847/0004-637X/829/1/21/meta doi:10.3847/0004-637X/829/1/21 doi:10.3847/0004-637X/829/1/21 |
| spellingShingle | cosmology: observations – galaxies: evolution – infrared: galaxies – submillimeter: galaxies Timmons, Nicholas Cooray, A. Riechers, D.A. Nayyeri, H. Fu, Hai Jullo, Eric Gladders, Michael D. Baes, Maarten Bussmann, R.S. Calanog, Jae Clements, D.L. da Cunha, E. Dye, S. Eales, S.A. Furlanetto, C. Gonzalez-Nuevo, J. Greenslade, J. Gurwell, M. Messias, Hugo Michalowski, M.J. Oteo, I. Pérez-Fournón, I. Scott, Douglas Valiante, E. Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title | Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title_full | Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title_fullStr | Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title_full_unstemmed | Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title_short | Multi-wavelength lens construction of a Planck and Herschel-detected star-bursting galaxy |
| title_sort | multi-wavelength lens construction of a planck and herschel-detected star-bursting galaxy |
| topic | cosmology: observations – galaxies: evolution – infrared: galaxies – submillimeter: galaxies |
| url | https://eprints.nottingham.ac.uk/42360/ https://eprints.nottingham.ac.uk/42360/ https://eprints.nottingham.ac.uk/42360/ |