Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies

Y. D. Hezaveh, Daniel P Marrone, C. D. Fassnacht, J. S. Spilker, J. D. Vieira, J. E. Aguirre, K. A. Aird, M. Aravena, M. L N Ashby, M. Bayliss, B. A. Benson, L. E. Bleem, M. Bothwell, M. Brodwin, J. E. Carlstrom, C. L. Chang, S. C. Chapman, T. M. Crawford, A. T. Crites, C. De Breuck & 47 others T. De Haan, M. A. Dobbs, E. B. Fomalont, E. M. George, M. D. Gladders, A. H. Gonzalez, T. R. Greve, N. W. Halverson, F. W. High, G. P. Holder, W. L. Holzapfel, S. Hoover, J. D. Hrubes, K. Husband, T. R. Hunter, R. Keisler, A. T. Lee, E. M. Leitch, M. Lueker, D. Luong-Van, M. Malkan, V. McIntyre, J. J. McMahon, J. Mehl, K. M. Menten, S. S. Meyer, L. M. Mocanu, E. J. Murphy, T. Natoli, S. Padin, T. Plagge, C. L. Reichardt, A. Rest, J. Ruel, J. E. Ruhl, K. Sharon, K. K. Schaffer, L. Shaw, E. Shirokoff, B. Stalder, Z. Staniszewski, A. A. Stark, K. Story, K. Vanderlinde, A. Weiß, N. Welikala, R. Williamson

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

We present Atacama Large Millimeter/submillimeter Array (ALMA) 860 μm imaging of four high-redshift (z = 2.8-5.7) dusty sources that were detected using the South Pole Telescope (SPT) at 1.4 mm and are not seen in existing radio to far-infrared catalogs. At 1.″5 resolution, the ALMA data reveal multiple images of each submillimeter source, separated by 1″-3″, consistent with strong lensing by intervening galaxies visible in near-IR imaging of these sources. We describe a gravitational lens modeling procedure that operates on the measured visibilities and incorporates self-calibration- like antenna phase corrections as part of the model optimization, which we use to interpret the source structure. Lens models indicate that SPT0346-52, located at z = 5.7, is one of the most luminous and intensely star-forming sources in the universe with a lensing corrected FIR luminosity of 3.7 × 10 13 L and star formation surface density of 4200 M⊙yr -1 kpc-2. We find magnification factors of 5 to 22, with lens Einstein radii of 1.″1-2.″0 and Einstein enclosed masses of 1.6-7.2 × 1011 M. These observations confirm the lensing origin of these objects, allow us to measure their intrinsic sizes and luminosities, and demonstrate the important role that ALMA will play in the interpretation of lensed submillimeter sources.

Original languageEnglish (US)
Article number132
JournalAstrophysical Journal
Volume767
Issue number2
DOIs
StatePublished - Apr 20 2013

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galaxies
stars
visibility
antenna
luminosity
lenses
radio
calibration
gravitational lenses
magnification
modeling
catalogs
star formation
poles
antennas
universe
telescopes
optimization
radii

Keywords

  • galaxies: high-redshift
  • galaxies: starburst
  • gravitational lensing: strong
  • techniques: interferometric

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Hezaveh, Y. D., Marrone, D. P., Fassnacht, C. D., Spilker, J. S., Vieira, J. D., Aguirre, J. E., ... Williamson, R. (2013). Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies. Astrophysical Journal, 767(2), [132]. https://doi.org/10.1088/0004-637X/767/2/132

Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies. / Hezaveh, Y. D.; Marrone, Daniel P; Fassnacht, C. D.; Spilker, J. S.; Vieira, J. D.; Aguirre, J. E.; Aird, K. A.; Aravena, M.; Ashby, M. L N; Bayliss, M.; Benson, B. A.; Bleem, L. E.; Bothwell, M.; Brodwin, M.; Carlstrom, J. E.; Chang, C. L.; Chapman, S. C.; Crawford, T. M.; Crites, A. T.; De Breuck, C.; De Haan, T.; Dobbs, M. A.; Fomalont, E. B.; George, E. M.; Gladders, M. D.; Gonzalez, A. H.; Greve, T. R.; Halverson, N. W.; High, F. W.; Holder, G. P.; Holzapfel, W. L.; Hoover, S.; Hrubes, J. D.; Husband, K.; Hunter, T. R.; Keisler, R.; Lee, A. T.; Leitch, E. M.; Lueker, M.; Luong-Van, D.; Malkan, M.; McIntyre, V.; McMahon, J. J.; Mehl, J.; Menten, K. M.; Meyer, S. S.; Mocanu, L. M.; Murphy, E. J.; Natoli, T.; Padin, S.; Plagge, T.; Reichardt, C. L.; Rest, A.; Ruel, J.; Ruhl, J. E.; Sharon, K.; Schaffer, K. K.; Shaw, L.; Shirokoff, E.; Stalder, B.; Staniszewski, Z.; Stark, A. A.; Story, K.; Vanderlinde, K.; Weiß, A.; Welikala, N.; Williamson, R.

In: Astrophysical Journal, Vol. 767, No. 2, 132, 20.04.2013.

Research output: Contribution to journalArticle

Hezaveh, YD, Marrone, DP, Fassnacht, CD, Spilker, JS, Vieira, JD, Aguirre, JE, Aird, KA, Aravena, M, Ashby, MLN, Bayliss, M, Benson, BA, Bleem, LE, Bothwell, M, Brodwin, M, Carlstrom, JE, Chang, CL, Chapman, SC, Crawford, TM, Crites, AT, De Breuck, C, De Haan, T, Dobbs, MA, Fomalont, EB, George, EM, Gladders, MD, Gonzalez, AH, Greve, TR, Halverson, NW, High, FW, Holder, GP, Holzapfel, WL, Hoover, S, Hrubes, JD, Husband, K, Hunter, TR, Keisler, R, Lee, AT, Leitch, EM, Lueker, M, Luong-Van, D, Malkan, M, McIntyre, V, McMahon, JJ, Mehl, J, Menten, KM, Meyer, SS, Mocanu, LM, Murphy, EJ, Natoli, T, Padin, S, Plagge, T, Reichardt, CL, Rest, A, Ruel, J, Ruhl, JE, Sharon, K, Schaffer, KK, Shaw, L, Shirokoff, E, Stalder, B, Staniszewski, Z, Stark, AA, Story, K, Vanderlinde, K, Weiß, A, Welikala, N & Williamson, R 2013, 'Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies', Astrophysical Journal, vol. 767, no. 2, 132. https://doi.org/10.1088/0004-637X/767/2/132
Hezaveh, Y. D. ; Marrone, Daniel P ; Fassnacht, C. D. ; Spilker, J. S. ; Vieira, J. D. ; Aguirre, J. E. ; Aird, K. A. ; Aravena, M. ; Ashby, M. L N ; Bayliss, M. ; Benson, B. A. ; Bleem, L. E. ; Bothwell, M. ; Brodwin, M. ; Carlstrom, J. E. ; Chang, C. L. ; Chapman, S. C. ; Crawford, T. M. ; Crites, A. T. ; De Breuck, C. ; De Haan, T. ; Dobbs, M. A. ; Fomalont, E. B. ; George, E. M. ; Gladders, M. D. ; Gonzalez, A. H. ; Greve, T. R. ; Halverson, N. W. ; High, F. W. ; Holder, G. P. ; Holzapfel, W. L. ; Hoover, S. ; Hrubes, J. D. ; Husband, K. ; Hunter, T. R. ; Keisler, R. ; Lee, A. T. ; Leitch, E. M. ; Lueker, M. ; Luong-Van, D. ; Malkan, M. ; McIntyre, V. ; McMahon, J. J. ; Mehl, J. ; Menten, K. M. ; Meyer, S. S. ; Mocanu, L. M. ; Murphy, E. J. ; Natoli, T. ; Padin, S. ; Plagge, T. ; Reichardt, C. L. ; Rest, A. ; Ruel, J. ; Ruhl, J. E. ; Sharon, K. ; Schaffer, K. K. ; Shaw, L. ; Shirokoff, E. ; Stalder, B. ; Staniszewski, Z. ; Stark, A. A. ; Story, K. ; Vanderlinde, K. ; Weiß, A. ; Welikala, N. ; Williamson, R. / Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies. In: Astrophysical Journal. 2013 ; Vol. 767, No. 2.
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TY - JOUR

T1 - Alma observations of spt-discovered, strongly lensed, dusty, star-forming galaxies

AU - Hezaveh, Y. D.

AU - Marrone, Daniel P

AU - Fassnacht, C. D.

AU - Spilker, J. S.

AU - Vieira, J. D.

AU - Aguirre, J. E.

AU - Aird, K. A.

AU - Aravena, M.

AU - Ashby, M. L N

AU - Bayliss, M.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Bothwell, M.

AU - Brodwin, M.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Chapman, S. C.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - De Breuck, C.

AU - De Haan, T.

AU - Dobbs, M. A.

AU - Fomalont, E. B.

AU - George, E. M.

AU - Gladders, M. D.

AU - Gonzalez, A. H.

AU - Greve, T. R.

AU - Halverson, N. W.

AU - High, F. W.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hoover, S.

AU - Hrubes, J. D.

AU - Husband, K.

AU - Hunter, T. R.

AU - Keisler, R.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Lueker, M.

AU - Luong-Van, D.

AU - Malkan, M.

AU - McIntyre, V.

AU - McMahon, J. J.

AU - Mehl, J.

AU - Menten, K. M.

AU - Meyer, S. S.

AU - Mocanu, L. M.

AU - Murphy, E. J.

AU - Natoli, T.

AU - Padin, S.

AU - Plagge, T.

AU - Reichardt, C. L.

AU - Rest, A.

AU - Ruel, J.

AU - Ruhl, J. E.

AU - Sharon, K.

AU - Schaffer, K. K.

AU - Shaw, L.

AU - Shirokoff, E.

AU - Stalder, B.

AU - Staniszewski, Z.

AU - Stark, A. A.

AU - Story, K.

AU - Vanderlinde, K.

AU - Weiß, A.

AU - Welikala, N.

AU - Williamson, R.

PY - 2013/4/20

Y1 - 2013/4/20

N2 - We present Atacama Large Millimeter/submillimeter Array (ALMA) 860 μm imaging of four high-redshift (z = 2.8-5.7) dusty sources that were detected using the South Pole Telescope (SPT) at 1.4 mm and are not seen in existing radio to far-infrared catalogs. At 1.″5 resolution, the ALMA data reveal multiple images of each submillimeter source, separated by 1″-3″, consistent with strong lensing by intervening galaxies visible in near-IR imaging of these sources. We describe a gravitational lens modeling procedure that operates on the measured visibilities and incorporates self-calibration- like antenna phase corrections as part of the model optimization, which we use to interpret the source structure. Lens models indicate that SPT0346-52, located at z = 5.7, is one of the most luminous and intensely star-forming sources in the universe with a lensing corrected FIR luminosity of 3.7 × 10 13 L and star formation surface density of 4200 M⊙yr -1 kpc-2. We find magnification factors of 5 to 22, with lens Einstein radii of 1.″1-2.″0 and Einstein enclosed masses of 1.6-7.2 × 1011 M⊙. These observations confirm the lensing origin of these objects, allow us to measure their intrinsic sizes and luminosities, and demonstrate the important role that ALMA will play in the interpretation of lensed submillimeter sources.

AB - We present Atacama Large Millimeter/submillimeter Array (ALMA) 860 μm imaging of four high-redshift (z = 2.8-5.7) dusty sources that were detected using the South Pole Telescope (SPT) at 1.4 mm and are not seen in existing radio to far-infrared catalogs. At 1.″5 resolution, the ALMA data reveal multiple images of each submillimeter source, separated by 1″-3″, consistent with strong lensing by intervening galaxies visible in near-IR imaging of these sources. We describe a gravitational lens modeling procedure that operates on the measured visibilities and incorporates self-calibration- like antenna phase corrections as part of the model optimization, which we use to interpret the source structure. Lens models indicate that SPT0346-52, located at z = 5.7, is one of the most luminous and intensely star-forming sources in the universe with a lensing corrected FIR luminosity of 3.7 × 10 13 L and star formation surface density of 4200 M⊙yr -1 kpc-2. We find magnification factors of 5 to 22, with lens Einstein radii of 1.″1-2.″0 and Einstein enclosed masses of 1.6-7.2 × 1011 M⊙. These observations confirm the lensing origin of these objects, allow us to measure their intrinsic sizes and luminosities, and demonstrate the important role that ALMA will play in the interpretation of lensed submillimeter sources.

KW - galaxies: high-redshift

KW - galaxies: starburst

KW - gravitational lensing: strong

KW - techniques: interferometric

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