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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The Herschel* PEP/HerMES luminosity function - I. Probing the evolution of PACS selected Galaxies to z ≃ 4
Monthly Notices of the Royal Astronomical Society, Volume 432, No. 1, Year 2013
Notification
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Description
We exploit the deep and extended far-IR data sets (at 70, 100 and 160 μm) of the Herschel Guaranteed Time Observation (GTO) PACS Evolutionary Probe (PEP) Survey, in combination with the Herschel Multi-tiered Extragalactic Survey data at 250, 350 and 500 μm, to derive the evolution of the rest-frame 35-, 60-, 90- and total infrared (IR) luminosity functions (LFs) up to z ~ 4.We detect very strong luminosity evolution for the total IR LF (LIR α (1 + z)3.55 ± 0.10 up to z ~ 2, and α (1 + z)1.62 ± 0.51 at 2 < z 4) combined with a density evolution (α (1 + z)-0.57 ± 0.22 up to z ~ 1 and α (1 + z)-3.92 ± 0.34 at 1 < z 4). In agreement with previous findings, the IR luminosity density (ρIR) increases steeply to z ~ 1, then flattens between z ~ 1 and z ~ 3 to decrease at z 3. Galaxies with different spectral energy distributions, masses and specific star formation rates (SFRs) evolve in very different ways and this large and deep statistical sample is the first one allowing us to separately study the different evolutionary behaviours of the individual IR populations contributing to ρIR. Galaxies occupying the well-established SFR-stellar mass main sequence (MS) are found to dominate both the total IR LF and ρIR at all redshifts, with the contribution from off-MS sources (≥0.6 dex above MS) being nearly constant (~20 per cent of the total ρIR) and showing no significant signs of increase with increasing z over the whole 0.8 < z < 2.2 range. Sources with mass in the range 10 ≤ log(M/M⊙) ≤ 11 are found to dominate the total IR LF, with more massive galaxies prevailing at the bright end of the high-z (2) LF. A two-fold evolutionary scheme for IR galaxies is envisaged: on the one hand, a starburst-dominated phase in which the Super Massive Black Holes (SMBH) grows and is obscured by dust (possibly triggered by a major merging event), is followed by an AGN-dominated phase, then evolving towards a local elliptical. On the other hand, moderately star-forming galaxies containing a low-luminosity AGN have various properties suggesting they are good candidates for systems in a transition phase preceding the formation of steady spiral galaxies. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
Authors & Co-Authors
Gruppioni, Carlotta
Unknown Affiliation
Pozzi, Francesca
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Rodighiero, Giulia
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Delvecchio, Ivan
Unknown Affiliation
Berta, Stefano
Unknown Affiliation
Pozzetti, Lucia
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Zamorani, Giovanni
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Andreani, Paola M.
Unknown Affiliation
Cimatti, Andrea
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Ilbert, Olivier
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Le Floc'H, Émeric
Unknown Affiliation
Lutz, Dieter
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Magnelli, Benjamin
Unknown Affiliation
Marchetti, Lucia
Unknown Affiliation
Monaco, P.
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Nordon, Raanan
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Oliver, Seb J.
Unknown Affiliation
Popesso, Paola
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Riguccini, Laurie A.
Unknown Affiliation
Roseboom, Isaac G.
Unknown Affiliation
Rosario, David J.V.
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Sargent, Mark T.
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Vaccari, Mattia
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Altieri, Bruno
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Aussel, Hervé
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Bongiovanni, Ángel Manuel
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Cepa, J.
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Daddi, Emmanuele
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Doḿinguez Sanchez, H.
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Elbaz, David
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Förster-Schreiber, Natascha M.F.
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Genzel, Reinhardt
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Iribarrem, A.
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Magliocchetti, Manuela
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Maiolino, Roberto
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Poglitsch, Albrecht
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García, Ana Maria Pérez
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Śanchez-Portal, Miguel
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Sturm, Eckhard
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Tacconi, Linda J.
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Valtchanov, Ivan
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Amblard, Alexandre
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Arumugam, Vinodiran
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Béthermin, Matthieu M.
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Bock, James J.
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Boselli, Alessandro
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Buat, Véronique
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Burgarella, Denis
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Castro-Rodriguéz, Nieves
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Cava, Antonio
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Chanial, Pierre F.
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Clements, David L.
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Conley, Alexander J.
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Cooray, Asantha Roshan
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Dowell, Charles Darren
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Dwek, Eli
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Eales, Stephen A.
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Franceschini, Alberto
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Glenn, Jason
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Griffin, Matthew J.
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Hatziminaoglou, Evanthia
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Ibar, E.
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Isaak, Kate G.
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Ivison, Robert J.
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Lagache, Guilaine
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Levenson, Louis R.
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Lu, Nanyao
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Madden, Suzanne C.
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Maffei, Bruno
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Mainetti, Gabrielle
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Nguyên, Hien Trong
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O'Halloran, Brian
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Page, Mathew J.
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Panuzzo, Pasquale
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Papageorgiou, Andreas
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Pearson, Christopher P.
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Pérez-Fournon, Ismael
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Pohlen, Michael
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Rigopoulou, Dimitra
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Rowan-Robinson, Michael
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Schulz, Bernhard
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Scott, Douglas J.
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Seymour, Nick
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Shupe, David L.
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Smith, Anthony J.
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Stevens, Jason A.
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Symeonidis, Myrto
Unknown Affiliation
Trichas, Markos
Unknown Affiliation
Tugwell, K. E.
Unknown Affiliation
Vigroux, Laurent G.
Unknown Affiliation
Wang, Lingyu
Unknown Affiliation
Wright, Gillian S.
Unknown Affiliation
Xu, Cong Kevin
Unknown Affiliation
Zemcov, Michael B.
Unknown Affiliation
Bardelli, S.
Unknown Affiliation
Carollo, Marcella C.
Unknown Affiliation
Contini, T.
Unknown Affiliation
Le Fèvre, Olivier
Unknown Affiliation
Lilly, Simon J.
Unknown Affiliation
Mainieri, V.
Unknown Affiliation
Statistics
Citations: 299
Authors: 100
Affiliations: 44
Identifiers
Doi:
10.1093/mnras/stt308
ISSN:
00358711
e-ISSN:
13652966
Study Design
Cross Sectional Study
Study Approach
Quantitative