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HerMES: Herschel-SPIRE observations of Lyman break galaxies

Rigopoulou, D. and Blain, A. and Bock, J. and Cooray, A. and Dowell, C. D. and Levenson, L. and Lu, N. and Nguyen, H. T. and Schulz, B. and Shupe, D. L. and Xu, C. K. and Zemcov, M. (2010) HerMES: Herschel-SPIRE observations of Lyman break galaxies. Monthly Notices of the Royal Astronomical Society, 409 (1). L7-L12. ISSN 0035-8711. http://resolver.caltech.edu/CaltechAUTHORS:20110509-110943988

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Abstract

We present first results of a study of the submillimetre (submm) (rest-frame far-infrared) properties of z ~ 3 Lyman break galaxies (LBGs) and their lower redshift counterparts BX/BM galaxies, based on Herschel-SPIRE observations of the Northern field of the Great Observatories Origins Deep Survey (GOODS-N). We use stacking analysis to determine the properties of LBGs well below the current limit of the survey. Although LBGs are not detected individually, stacking the infrared luminous LBGs (those detected with Spitzer at 24 μm) yields a statistically significant submm detection with mean flux 〈S_(250)〉= 5.9 ± 1.4 mJy confirming the power of SPIRE in detecting UV-selected high-redshift galaxies at submm wavelengths. In comparison, the Spitzer 24 μm detected BX/BM galaxies appear fainter with a stacked value of〈S_(250)〉= 2.7 ± 0.8 mJy. By fitting the spectral energy distributions (SEDs) we derive median infrared luminosities, L_(IR), of 2.8 × 10^(12) L_⊙ and 1.5 × 10^(11) L_⊙ for z ~ 3 LBGs and BX/BMs, respectively. We find that LIR estimates derived from present measurements are in good agreement with those based on UV data for z ~ 2 BX/BM galaxies, unlike the case for z ~ 3 infrared luminous LBGs where the UV underestimates the true L_(IR). Although sample selection effects may influence this result we suggest that differences in physical properties (such as morphologies, dust distribution and extent of star-forming regions) between z ~ 3 LBGs and z ~ 2 BX/BMs may also play a significant role.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1111/j.1745-3933.2010.00950.xDOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1111/j.1745-3933.2010.00950.x/abstract;jsessionid=5B10DBFF49335447F908E401B6D89DF4.d02t04PublisherUNSPECIFIED
Additional Information:© 2010 The Authors. Journal compilation © 2010 RAS. Accepted 2010 September 10. Received 2010 September 2; in original form 2010 June 20. Article first published online: 12 Oct. 2010. SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including University of Lethbridge (Canada); NAOC (China); CEA, LAM(France); IFSI, University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, University of Sussex (UK); Caltech, JPL, NHSC, University of Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC (UK) and NASA (USA). The data presented in this Letter will be released through the Herschel data base in Marseille HeDaM (hedam.oamp.fr/HerMES).
Group:TAPIR
Funders:
Funding AgencyGrant Number
CSA (Canada) UNSPECIFIED
NAOC (China) UNSPECIFIED
CEA (France)UNSPECIFIED
CNES (France) UNSPECIFIED
CNRS (France)UNSPECIFIED
ASI (Italy) UNSPECIFIED
MCINN (Spain)UNSPECIFIED
SNSB (Sweden) UNSPECIFIED
STFC (UK) UNSPECIFIED
NASAUNSPECIFIED
Subject Keywords:galaxies: high-redshift; galaxies: starburst; submillimetre: galaxies
Record Number:CaltechAUTHORS:20110509-110943988
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110509-110943988
Official Citation:Rigopoulou, D., Magdis, G., Ivison, R. J., Amblard, A., Arumugam, V., Aussel, H., Blain, A., Bock, J., Boselli, A., Buat, V., Burgarella, D., Castro-Rodríguez, N., Cava, A., Chanial, P., Clements, D. L., Conley, A., Conversi, L., Cooray, A., Dowell, C. D., Dwek, E., Eales, S., Elbaz, D., Farrah, D., Franceschini, A., Glenn, J., Griffin, M., Halpern, M., Hatziminaoglou, E., Huang, J.-S., Ibar, E., Isaak, ., Lagache, ., Levenson, L., Lu, N., Madden, S., Maffei, B., Mainetti, G., Marchetti, L., Nguyen, H. T., O’Halloran, B., Oliver, S. J., Omont, A., Page, M. J., Panuzzo, P., Papageorgiou, A., Pearson, C. P., Pérez-Fournon, I., Pohlen, M., Rizzo, D., Roseboom, I. G., Rowan-Robinson, M., Schulz, B., Scott, D., Seymour, N., Shupe, D. L., Smith, A. J., Stevens, J. A., Symeonidis, M., Trichas, M., Tugwell, K. E., Vaccari, M., Valtchanov, I., Vigroux, L., Wang, L., Wright, G., Xu, C. K. and Zemcov, M. (2010), HerMES: Herschel-SPIRE observations of Lyman break galaxies. Monthly Notices of the Royal Astronomical Society: Letters, 409: L7–L12. doi: 10.1111/j.1745-3933.2010.00950.x
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ID Code:23605
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:09 May 2011 18:33
Last Modified:23 Dec 2013 23:08

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