SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8
dc.contributor.author | Bothwell, M. S. | en_US |
dc.contributor.author | Aguirre, J. E. | en_US |
dc.contributor.author | Chapman, S. C. | en_US |
dc.contributor.author | Marrone, D. P. | en_US |
dc.contributor.author | Vieira, J. D. | en_US |
dc.contributor.author | Ashby, M. L. N. | en_US |
dc.contributor.author | Aravena, M. | en_US |
dc.contributor.author | Benson, B. A. | en_US |
dc.contributor.author | Bock, J. J. | en_US |
dc.contributor.author | Bradford, C. M. | en_US |
dc.contributor.author | Brodwin, M. | en_US |
dc.contributor.author | Carlstrom, J. | en_US |
dc.contributor.author | Crawford, T. M. | en_US |
dc.contributor.author | de Breuck, C. | en_US |
dc.contributor.author | Downes, T. P. | en_US |
dc.contributor.author | Fassnacht, C. D. | en_US |
dc.contributor.author | Gonzalez, A. H. | en_US |
dc.contributor.author | Greve, T. R. | en_US |
dc.contributor.author | Gullberg, B. | en_US |
dc.contributor.author | Hezaveh, Y. | en_US |
dc.contributor.author | Holder, G. P. | en_US |
dc.contributor.author | Holzapfel, W. L. | en_US |
dc.contributor.author | Ibar, E. | en_US |
dc.contributor.author | Ivison, R. | en_US |
dc.contributor.author | Kamenetzky, J. | en_US |
dc.contributor.author | Keisler, R. | en_US |
dc.contributor.author | Lupu, R. E. | en_US |
dc.contributor.author | Ma, J. | en_US |
dc.contributor.author | Malkan, M. | en_US |
dc.contributor.author | McIntyre, V. | en_US |
dc.contributor.author | Murphy, E. J. | en_US |
dc.contributor.author | Nguyen, H. T. | en_US |
dc.contributor.author | Reichardt, C. L. | en_US |
dc.contributor.author | Rosenman, M. | en_US |
dc.contributor.author | Spilker, J. S. | en_US |
dc.contributor.author | Stalder, B. | en_US |
dc.contributor.author | Stark, A. A. | en_US |
dc.contributor.author | Strandet, M. | en_US |
dc.contributor.author | Vernet, J. | en_US |
dc.contributor.author | Weiss, A. | en_US |
dc.contributor.author | Welikala, N. | en_US |
dc.date.accessioned | 2014-03-12T19:21:05Z | |
dc.date.available | 2014-03-12T19:21:05Z | |
dc.date.issued | 2013-09-12 | en_US |
dc.identifier.citation | Bothwell, M. S., J. E. Aguirre, S. C. Chapman, D. P. Marrone, et al. 2013. "SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8." Astrophysical Journal, 779 (1):67 | en_US |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/10222/45481 | |
dc.identifier.uri | http://dx.doi.org/10.1088/0004-637X/779/1/67 | |
dc.description.abstract | We present observations of SPT-S J053816-5030.8, a gravitationally-lensed dusty star forming galaxy (DSFG) at z = 2.7817, first discovered at millimeter wavelengths by the South Pole Telescope. SPT 0538-50 is typical of the brightest sources found by wide-field millimeter-wavelength surveys, being lensed by an intervening galaxy at moderate redshift (in this instance, at z = 0.441). We present a wide array of multi-wavelength spectroscopic and photometric data on SPT 0538-50, including data from ALMA, Herschel PACS and SPIRE, Hubble, Spitzer, VLT, ATCA, APEX, and the SMA. We use high resolution imaging from HST to de-blend SPT 0538-50, separating DSFG emission from that of the foreground lens. Combined with a source model derived from ALMA imaging (which suggests a magnification factor of 21 +/- 4), we derive the intrinsic properties of SPT 0538-50, including the stellar mass, far-IR luminosity, star formation rate, molecular gas mass, and - using molecular line fluxes - the excitation conditions within the ISM. The derived physical properties argue that we are witnessing compact, merger-driven star formation in SPT 0538-50, similar to local starburst galaxies, and unlike that seen in some other DSFGs at this epoch. | en_US |
dc.relation.ispartof | Astrophysical Journal | |
dc.title | SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8 | en_US |
dc.title.alternative | arXiv:1309.3275 [astro-ph] | en_US |
dc.type | article | en_US |
dc.identifier.volume | 779 | |
dc.identifier.issue | 1 | |
dc.identifier.startpage | 67 | en_US |