GOODS–Herschel: an infrared main sequence for star-forming galaxies
David Elbaz,Mark Dickinson,Ho Seong Hwang,Tanio Díaz-Santos,Georgios E. Magdis,Benjamin Magnelli,D. Le Borgne,Frédéric Galliano,Maurilio Pannella,P. Chanial,Lee Armus,Vassilis Charmandaris,Vassilis Charmandaris,Emanuele Daddi,Herve Aussel,P. Popesso,Jeyhan S. Kartaltepe,Bruno Altieri,Ivan Valtchanov,D. Coia,Helmut Dannerbauer,Kalliopi Dasyra,Roger Leiton,Roger Leiton,Joseph M. Mazzarella,David M. Alexander,V. Buat,Denis Burgarella,R.-R. Chary,Roberto Gilli,Rob Ivison,Rob Ivison,Stéphanie Juneau,E. Le Floc'h,Dieter Lutz,G. E. Morrison,James Mullaney,Eric J. Murphy,Alexandra Pope,Douglas Scott,Mark Brodwin,Daniela Calzetti,C. Cesarsky,Stéphane Charlot,Herve Dole,Peter Eisenhardt,Henry C. Ferguson,N. M. Förster Schreiber,Dave Frayer,Mauro Giavalisco,Minh Huynh,Anton M. Koekemoer,Casey Papovich,Naveen A. Reddy,Christian Surace,Harry I. Teplitz,Min S. Yun,G. W. Wilson +57 more
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In this paper, the authors examined the infrared (IR) 3-500μm spectral energy distributions (SEDs) of galaxies at 0 < z < 2.5, supplemented by a local reference sample from IRAS, ISO, Spitzer, and AKARI data.Abstract:
We present the deepest 100 to 500 μm far-infrared observations obtained with the Herschel Space Observatory as part of the GOODS-Herschel key program, and examine the infrared (IR) 3–500 μm spectral energy distributions (SEDs) of galaxies at 0 < z < 2.5, supplemented by a local reference sample from IRAS, ISO, Spitzer, and AKARI data. We determine the projected star formation densities of local galaxies from their radio and mid-IR continuum sizes.
We find that the ratio of total IR luminosity to rest-frame 8 μm luminosity, IR8 (≡ L_(IR)^(tot)/L_8), follows a Gaussian distribution centered on IR8 = 4 (σ = 1.6) and defines an IR main sequence for star-forming galaxies independent of redshift and luminosity. Outliers from this main sequence produce a tail skewed toward higher values of IR8. This minority population ( 3 × 10^(10) L_⊙ kpc^(-2)) and a high specific star formation rate (i.e., starbursts). The rest-frame, UV-2700 A size of these distant starbursts is typically half that of main sequence galaxies, supporting the correlation between star formation density and starburst activity that is measured for the local sample.
Locally, luminous and ultraluminous IR galaxies, (U)LIRGs (L_(IR)^(tot)≥ 10^(11) L_☉), are systematically in the starburst mode, whereas most distant (U)LIRGs form stars in the “normal” main sequence mode. This confusion between two modes of star formation is the cause of the so-called “mid-IR excess” population of galaxies found at z > 1.5 by previous studies. Main sequence galaxies have strong polycyclic aromatic hydrocarbon (PAH) emission line features, a broad far-IR bump resulting from a combination of dust temperatures (T_(dust) ~ 15–50 K), and an effective T_(dust) ~ 31 K, as derived from the peak wavelength of their infrared SED. Galaxies in the starburst regime instead exhibit weak PAH equivalent widths and a sharper far-IR bump with an effective T_(dust)~ 40 K. Finally, we present evidence that the mid-to-far IR emission of X-ray active galactic nuclei (AGN) is predominantly produced by star formation and that candidate dusty AGNs with a power-law emission in the mid-IR systematically occur in compact, dusty starbursts. After correcting for the effect of starbursts on IR8, we identify new candidates for extremely obscured AGNs.read more
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The Interstellar Medium in High-redshift Submillimeter Galaxies as Probed by Infrared Spectroscopy*
Julie Wardlow,Asantha Cooray,Asantha Cooray,W. A. Osage,Nathan Bourne,David L. Clements,Helmut Dannerbauer,Helmut Dannerbauer,Loretta Dunne,Loretta Dunne,Simon Dye,Steve Eales,Duncan Farrah,C. Furlanetto,Edo Ibar,Rob Ivison,Rob Ivison,Steve Maddox,Steve Maddox,M. Michałowski,Dominik A. Riechers,Dimitra Rigopoulou,Douglas Scott,Matthew Smith,Lingyu Wang,Paul van der Werf,Elisabetta Valiante,Ivan Valtchanov,Aprajita Verma +28 more
TL;DR: In this paper, the conditions in the interstellar medium (ISM) in far-infrared luminous SMGs at z˜ 1-4.5 were examined by using Herschel-PACS.
Journal ArticleDOI
A molecular line scan in the Hubble Deep Field North
Roberto Decarli,Fabian Walter,Chris Carilli,Dominik A. Riechers,Pierre Cox,Roberto Neri,Manuel Aravena,Manuel Aravena,Eric F. Bell,Frank Bertoldi,Dario Colombo,E. da Cunha,Emanuele Daddi,Mark Dickinson,D. Downes,Richard S. Ellis,Lindley Lentati,Roberto Maiolino,Karl M. Menten,H.-W. Rix,Mark Sargent,Daniel P. Stark,Benjamin J. Weiner,Achim Weiss +23 more
TL;DR: In this article, the authors presented a molecular line scan in the Hubble Deep Field North (HDF-N) that covers the entire 3mm window (79-115 GHz) using the IRAM Plateau de Bure Interferometer.
Journal ArticleDOI
UV TO IR LUMINOSITIES AND DUST ATTENUATION DETERMINED FROM ∼4000 K-SELECTED GALAXIES AT 1 < z < 3 IN THE ZFOURGE SURVEY*
Ben Forrest,Kim-Vy Tran,Adam Tomczak,Adam Tomczak,Adam Broussard,Ivo Labbé,Casey Papovich,Mariska Kriek,Rebecca Allen,Michael J. Cowley,Michael J. Cowley,Mark Dickinson,Karl Glazebrook,Josha van Houdt,Hanae Inami,Glenn G. Kacprzak,Lalitwadee Kawinwanichakij,Daniel D. Kelson,Patrick J. McCarthy,Andrew J. Monson,Glenn Morrison,Themiya Nanayakkara,S. Eric Persson,Ryan Quadri,Lee R. Spitler,Lee R. Spitler,Caroline M. S. Straatman,Vithal Tilvi,Vithal Tilvi +28 more
TL;DR: In this paper, a set of composite galaxy spectral energy distributions (SEDs) was built by de-redshifting and scaling multi-wavelength photometry from galaxies in the ZFOURGE survey, covering the CDFS, COSMOS, and UDS fields.
Journal ArticleDOI
A Submillimeter Perspective on the GOODS Fields (SUPER GOODS) - I. An Ultradeep SCUBA-2 Survey of the GOODS-N
Lennox L. Cowie,Amy J. Barger,Amy J. Barger,Li-Yen Hsu,Chian-Chou Chen,Frazer N. Owen,Wei-Hao Wang +6 more
TL;DR: In this paper, the authors presented a deep SCUBA-2 survey of the GOODS-N at both 850 and 450 micron (central rms noise of 0.28mJy and 2.6 mJy, respectively).
Journal ArticleDOI
A complete census of Herschel-detected infrared sources within the HST Frontier Fields
T. D. Rawle,T. D. Rawle,Bruno Altieri,Eiichi Egami,Pablo G. Pérez-González,Frédéric Boone,B. Clement,Rob Ivison,Rob Ivison,Johan Richard,Wiphu Rujopakarn,Wiphu Rujopakarn,Ivan Valtchanov,Gregory Walth,Benjamin J. Weiner,Andrew Blain,Miroslava Dessauges-Zavadsky,Jean-Paul Kneib,Dieter Lutz,G. Rodighiero,Daniel Schaerer,Daniel Schaerer,Ian Smail +22 more
TL;DR: In this paper, a complete census of all Herschel-detected sources within the six massive lensing clusters of the HST Frontier Fields (HFF) is presented, with a robust legacy catalogue of 263 sources with Herschel fluxes, primarily based on imaging from the Herschel Lensing Survey and PEP/HerMES Key Programmes.
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