Spitzer Imaging of Herschel Lensed Sub-mm Galaxies

Asantha Cooray; Julie Wardlow; Sam Kim; Ali Khostovan; Ketron Mitchell-Wynne; Elizabeth Barton; Yan Gong; Alexandre Amblard; Paolo Serra; Jeff Cooke; Dominik Riechers; Benford Dominic; David Frayer; Jonathan Gardner; Hai Fu; Shane Bussmann; Mark Gurwell; Lerothodi Leeuw; Temi Pasquale; Alex Conley; Jamie Bock; Joaquin Vieira; Carrie Bridge; Jason Glenn; Michael Zemcov; Bernhard Schulz; David Shupe; Ros Hopwood; Mattia Negrello; Paola Andreani; David Clements; Helmut Dannerbauer; Gianfranco de Zotti; Loretta Dunne; James Dunlop; Steve Eales; Duncan Farrah; Rob Ivison; Matt Jarvis; Steve Maddox; Michal Michalowski; Alain Omont; Ismael Perez-Fournon; Dimitra Rigopoulou; Stephen Serjeant; Ian Smail; Mark Thompson; Mattia Vaccari; Aprajita Verma; Kirsten Coppin; Seb Oliver; Lingyu Wang

Spitzer Imaging of Herschel Lensed Sub-mm Galaxies

Asantha Cooray, Julie Wardlow, Sam Kim, Ali Khostovan, Ketron Mitchell-Wynne, Elizabeth Barton, Yan Gong, Alexandre Amblard, Paolo Serra, Jeff Cooke, Dominik Riechers, Benford Dominic, David Frayer, Jonathan Gardner, Hai Fu, Shane Bussmann, Mark Gurwell, Lerothodi Leeuw, Temi Pasquale, Alex ConleyJamie Bock, Joaquin Vieira, Carrie Bridge, Jason Glenn, Michael Zemcov, Bernhard Schulz, David Shupe, Ros Hopwood, Mattia Negrello, Paola Andreani, David Clements, Helmut Dannerbauer, Gianfranco de Zotti, Loretta Dunne, James Dunlop, Steve Eales, Duncan Farrah, Rob Ivison, Matt Jarvis, Steve Maddox, Michal Michalowski, Alain Omont, Ismael Perez-Fournon, Dimitra Rigopoulou, Stephen Serjeant, Ian Smail, Mark Thompson, Mattia Vaccari, Aprajita Verma, Kirsten Coppin, Seb Oliver, Lingyu Wang

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Sub-millimeter surveys have, in the last decade, revealed an unexpected population of high-redshift dust-obscured sub-mm galaxies (SMGs) which are forming stars at a tremendous rate. Due to steep number counts and the negative k-correction at sub-mm wavelengths sub-mm surveys are effective at finding intrinsically faint, gravitationally lensed galaxies. We have now produced a reliable list of about 150 bright lensed SMGs in 200 sq. deg of the Herschel-ATLAS and HerMES (the GTO program of the SPIRE Instrument team) surveys with Herschel-SPIRE. We propose Spitzer IRAC 3.6 and 4.5 micron imaging of 122 of these gravitationally lensed SMGs. The target SMGs are selected to maximally overlap with existing and planned multi-wavelength followup programs, without duplicating existing deep IRAC data. Using the proposed Spitzer data we will: (a) Extend the SEDs of z~ 1 to 5 lensed SMGs into the near-IR regime, where derived stellar masses are more reliable than those estimated at other wavelengths alone; (b) Combine with lens models from existing and planned high-resolution sub-mm imaging (SMA, CARMA, PdBI) to map the evolution of stellar mass as a function of redshift and star-formation rate (SFR); (c) Combine with existing and planned CO and CII molecular line measurements to map the evolution of dust-to-gas and stellar-to-gas mass ratios as a function of redshift and SFR; (d) Obtain snapshot statistics on the sub-mm galaxy evolution from z of 1 to 5 as a function of stellar, dust, and gas mass to study the role of mergers and AGN contribution that may regulate the starburst phenomenon; (e) Compare our results to those from numerical simulations of high-redshift starburst galaxies to investigate the physical conditions in SMGs, and their evolutionary pathways.

Original language	English
Pages (from-to)	80156
Journal	Spitzer Proposal ID #80156
Publication status	Published - 1 May 2011

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http://adsabs.harvard.edu/abs/2011sptz.prop80156C

Cite this

Cooray, A., Wardlow, J., Kim, S., Khostovan, A., Mitchell-Wynne, K., Barton, E., Gong, Y., Amblard, A., Serra, P., Cooke, J., Riechers, D., Dominic, B., Frayer, D., Gardner, J., Fu, H., Bussmann, S., Gurwell, M., Leeuw, L., Pasquale, T., ... Wang, L. (2011). Spitzer Imaging of Herschel Lensed Sub-mm Galaxies. Spitzer Proposal ID #80156, 80156. http://adsabs.harvard.edu/abs/2011sptz.prop80156C

@article{df88b229a0c745cab8efa7390d9ba885,

title = "Spitzer Imaging of Herschel Lensed Sub-mm Galaxies",

abstract = "Sub-millimeter surveys have, in the last decade, revealed an unexpected population of high-redshift dust-obscured sub-mm galaxies (SMGs) which are forming stars at a tremendous rate. Due to steep number counts and the negative k-correction at sub-mm wavelengths sub-mm surveys are effective at finding intrinsically faint, gravitationally lensed galaxies. We have now produced a reliable list of about 150 bright lensed SMGs in 200 sq. deg of the Herschel-ATLAS and HerMES (the GTO program of the SPIRE Instrument team) surveys with Herschel-SPIRE. We propose Spitzer IRAC 3.6 and 4.5 micron imaging of 122 of these gravitationally lensed SMGs. The target SMGs are selected to maximally overlap with existing and planned multi-wavelength followup programs, without duplicating existing deep IRAC data. Using the proposed Spitzer data we will: (a) Extend the SEDs of z~ 1 to 5 lensed SMGs into the near-IR regime, where derived stellar masses are more reliable than those estimated at other wavelengths alone; (b) Combine with lens models from existing and planned high-resolution sub-mm imaging (SMA, CARMA, PdBI) to map the evolution of stellar mass as a function of redshift and star-formation rate (SFR); (c) Combine with existing and planned CO and CII molecular line measurements to map the evolution of dust-to-gas and stellar-to-gas mass ratios as a function of redshift and SFR; (d) Obtain snapshot statistics on the sub-mm galaxy evolution from z of 1 to 5 as a function of stellar, dust, and gas mass to study the role of mergers and AGN contribution that may regulate the starburst phenomenon; (e) Compare our results to those from numerical simulations of high-redshift starburst galaxies to investigate the physical conditions in SMGs, and their evolutionary pathways.",

author = "Asantha Cooray and Julie Wardlow and Sam Kim and Ali Khostovan and Ketron Mitchell-Wynne and Elizabeth Barton and Yan Gong and Alexandre Amblard and Paolo Serra and Jeff Cooke and Dominik Riechers and Benford Dominic and David Frayer and Jonathan Gardner and Hai Fu and Shane Bussmann and Mark Gurwell and Lerothodi Leeuw and Temi Pasquale and Alex Conley and Jamie Bock and Joaquin Vieira and Carrie Bridge and Jason Glenn and Michael Zemcov and Bernhard Schulz and David Shupe and Ros Hopwood and Mattia Negrello and Paola Andreani and David Clements and Helmut Dannerbauer and {de Zotti}, Gianfranco and Loretta Dunne and James Dunlop and Steve Eales and Duncan Farrah and Rob Ivison and Matt Jarvis and Steve Maddox and Michal Michalowski and Alain Omont and Ismael Perez-Fournon and Dimitra Rigopoulou and Stephen Serjeant and Ian Smail and Mark Thompson and Mattia Vaccari and Aprajita Verma and Kirsten Coppin and Seb Oliver and Lingyu Wang",

year = "2011",

month = may,

day = "1",

language = "English",

pages = "80156",

journal = "Spitzer Proposal ID #80156",

}

Cooray, A, Wardlow, J, Kim, S, Khostovan, A, Mitchell-Wynne, K, Barton, E, Gong, Y, Amblard, A, Serra, P, Cooke, J, Riechers, D, Dominic, B, Frayer, D, Gardner, J, Fu, H, Bussmann, S, Gurwell, M, Leeuw, L, Pasquale, T, Conley, A, Bock, J, Vieira, J, Bridge, C, Glenn, J, Zemcov, M, Schulz, B, Shupe, D, Hopwood, R, Negrello, M, Andreani, P, Clements, D, Dannerbauer, H, de Zotti, G, Dunne, L, Dunlop, J, Eales, S, Farrah, D, Ivison, R, Jarvis, M, Maddox, S, Michalowski, M, Omont, A, Perez-Fournon, I, Rigopoulou, D, Serjeant, S, Smail, I, Thompson, M, Vaccari, M, Verma, A, Coppin, K, Oliver, S & Wang, L 2011, 'Spitzer Imaging of Herschel Lensed Sub-mm Galaxies', Spitzer Proposal ID #80156, pp. 80156. <http://adsabs.harvard.edu/abs/2011sptz.prop80156C>

TY - JOUR

T1 - Spitzer Imaging of Herschel Lensed Sub-mm Galaxies

AU - Cooray, Asantha

AU - Wardlow, Julie

AU - Kim, Sam

AU - Khostovan, Ali

AU - Mitchell-Wynne, Ketron

AU - Barton, Elizabeth

AU - Gong, Yan

AU - Amblard, Alexandre

AU - Serra, Paolo

AU - Cooke, Jeff

AU - Riechers, Dominik

AU - Dominic, Benford

AU - Frayer, David

AU - Gardner, Jonathan

AU - Fu, Hai

AU - Bussmann, Shane

AU - Gurwell, Mark

AU - Leeuw, Lerothodi

AU - Pasquale, Temi

AU - Conley, Alex

AU - Bock, Jamie

AU - Vieira, Joaquin

AU - Bridge, Carrie

AU - Glenn, Jason

AU - Zemcov, Michael

AU - Schulz, Bernhard

AU - Shupe, David

AU - Hopwood, Ros

AU - Negrello, Mattia

AU - Andreani, Paola

AU - Clements, David

AU - Dannerbauer, Helmut

AU - de Zotti, Gianfranco

AU - Dunne, Loretta

AU - Dunlop, James

AU - Eales, Steve

AU - Farrah, Duncan

AU - Ivison, Rob

AU - Jarvis, Matt

AU - Maddox, Steve

AU - Michalowski, Michal

AU - Omont, Alain

AU - Perez-Fournon, Ismael

AU - Rigopoulou, Dimitra

AU - Serjeant, Stephen

AU - Smail, Ian

AU - Thompson, Mark

AU - Vaccari, Mattia

AU - Verma, Aprajita

AU - Coppin, Kirsten

AU - Oliver, Seb

AU - Wang, Lingyu

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Sub-millimeter surveys have, in the last decade, revealed an unexpected population of high-redshift dust-obscured sub-mm galaxies (SMGs) which are forming stars at a tremendous rate. Due to steep number counts and the negative k-correction at sub-mm wavelengths sub-mm surveys are effective at finding intrinsically faint, gravitationally lensed galaxies. We have now produced a reliable list of about 150 bright lensed SMGs in 200 sq. deg of the Herschel-ATLAS and HerMES (the GTO program of the SPIRE Instrument team) surveys with Herschel-SPIRE. We propose Spitzer IRAC 3.6 and 4.5 micron imaging of 122 of these gravitationally lensed SMGs. The target SMGs are selected to maximally overlap with existing and planned multi-wavelength followup programs, without duplicating existing deep IRAC data. Using the proposed Spitzer data we will: (a) Extend the SEDs of z~ 1 to 5 lensed SMGs into the near-IR regime, where derived stellar masses are more reliable than those estimated at other wavelengths alone; (b) Combine with lens models from existing and planned high-resolution sub-mm imaging (SMA, CARMA, PdBI) to map the evolution of stellar mass as a function of redshift and star-formation rate (SFR); (c) Combine with existing and planned CO and CII molecular line measurements to map the evolution of dust-to-gas and stellar-to-gas mass ratios as a function of redshift and SFR; (d) Obtain snapshot statistics on the sub-mm galaxy evolution from z of 1 to 5 as a function of stellar, dust, and gas mass to study the role of mergers and AGN contribution that may regulate the starburst phenomenon; (e) Compare our results to those from numerical simulations of high-redshift starburst galaxies to investigate the physical conditions in SMGs, and their evolutionary pathways.

AB - Sub-millimeter surveys have, in the last decade, revealed an unexpected population of high-redshift dust-obscured sub-mm galaxies (SMGs) which are forming stars at a tremendous rate. Due to steep number counts and the negative k-correction at sub-mm wavelengths sub-mm surveys are effective at finding intrinsically faint, gravitationally lensed galaxies. We have now produced a reliable list of about 150 bright lensed SMGs in 200 sq. deg of the Herschel-ATLAS and HerMES (the GTO program of the SPIRE Instrument team) surveys with Herschel-SPIRE. We propose Spitzer IRAC 3.6 and 4.5 micron imaging of 122 of these gravitationally lensed SMGs. The target SMGs are selected to maximally overlap with existing and planned multi-wavelength followup programs, without duplicating existing deep IRAC data. Using the proposed Spitzer data we will: (a) Extend the SEDs of z~ 1 to 5 lensed SMGs into the near-IR regime, where derived stellar masses are more reliable than those estimated at other wavelengths alone; (b) Combine with lens models from existing and planned high-resolution sub-mm imaging (SMA, CARMA, PdBI) to map the evolution of stellar mass as a function of redshift and star-formation rate (SFR); (c) Combine with existing and planned CO and CII molecular line measurements to map the evolution of dust-to-gas and stellar-to-gas mass ratios as a function of redshift and SFR; (d) Obtain snapshot statistics on the sub-mm galaxy evolution from z of 1 to 5 as a function of stellar, dust, and gas mass to study the role of mergers and AGN contribution that may regulate the starburst phenomenon; (e) Compare our results to those from numerical simulations of high-redshift starburst galaxies to investigate the physical conditions in SMGs, and their evolutionary pathways.

M3 - Article

SP - 80156

JO - Spitzer Proposal ID #80156

JF - Spitzer Proposal ID #80156

ER -

Spitzer Imaging of Herschel Lensed Sub-mm Galaxies

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