Galaxy formation and evolution

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Herschel observations and a model for IRAS 08572+3915: A candidate for the most luminous infrared galaxy in the local (z < 0.2) Universe

Monthly Notices of the Royal Astronomical Society: Letters 437:1 (2013)

Authors:

A Efstathiou, C Pearson, D Farrah, D Rigopoulou, J Gracía-Carpio, A Verma, HWW Spoon, J Afonso, J Bernard-Salas, DL Clements, A Cooray, D Cormier, M Etxaluze, J Fischer, E Gonźalez-Alfonso, P Hurley, V Lebouteiller, SJ Oliver, M Rowan-Robinson, E Sturm

Abstract:

We present Herschel photometry and spectroscopy, carried out as part of the Herschel ultraluminous infrared galaxy (ULIRG) survey, and a model for the infrared to submillimetre emission of the ULIRG IRAS 08572+3915. This source shows one of the deepest known silicate absorption features and no polycyclic aromatic hydrocarbon emission. The model suggests that this object is powered by an active galactic nucleus (AGN) with a fairly smooth torus viewed almost edge-on and a very young starburst. According to our model, the AGN contributes about 90 per cent of the total luminosity of 1.1 × 1013 L⊙, which is about a factor of 5 higher than previous estimates. The large correction of the luminosity is due to theanisotropy of the emission of the best-fitting torus. Similar corrections may be necessary for other local and high-z analogues. This correction implies that IRAS 08572+3915 at a redshift of 0.058 35 may be the nearest hyperluminous infrared galaxy and probably the most luminous infrared galaxy in the local (z < 0.2) Universe. IRAS 08572+3915 shows a low ratio of [C II] to IR luminosity (log L[C II]/LIR < -3.8) and a [OI]63 μm to [CII]158 μm line ratio of about 1 that supports the model presented in this Letter ©2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
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Erratum to The herschel* pep/hermes luminosity function - i. probing the evolution of PACS selected galaxies to z ̃ 4 [MNRAS 436, (2013) 2875-2876]

Monthly Notices of the Royal Astronomical Society 436:3 (2013) 2875-2876

Authors:

C Gruppioni, L Pozzetti, G Zamorani, H Doḿlnguez-Śanchez, R Genzel, P Chania, S Bardelli, E Zucca, F Pozzi, I Delvecchio, A Cimatti, G Rodighiero, L Marchetti, M Vaccari, A Franceschini, G Mainetti, S Berta, D Lutz, B Magnelli, R Nordon, P Popesso, DJ Rosario, N F orster Schreiber, A Poglitsch, E Sturm, L Tacconi, P Andreani, A Iribarrem, E Hatziminaoglou, V Mainieri, O Ilbert, A Boselli, V Buat, D Burgarella, O Le F evre, E Le Floc'h, L Riguccini, M Sargent, H Aussel, E Daddi, D Elbaz, M Bethermin, S Madden, P Panuzzo, L Monaco, S Oliver, I Roseboom, AJ Smith, L Wang, V Arumugam, RJ Ivison, B Altieri, A Ṕerez Garćla, M Sanchez-Portal, I Valtchanov, A Bongiovanni, J Cepa, N Castro-Rodŕlguez, I Ṕerez-Fournon, M Magliocchetti, R Maiolino, A Amblard, J Bock, A Cooray, CD Dowell, L Levenson, N Lu, HT Nguyen, B Schulz, DL Shupe, CK Xu, M Zemcov, A Cava, DL Clements, B O'Halloran, M Rowan-Robinson, A Conley, J Glenn, E Dwek, S Eales, M Griffin, A Papageorgiou, M Pohlen, E Ibar, G Wright, K Isaak, G Lagache, B Maffei, MJ Page, N Seymour, M Symeonidis, KE Tugwell, CP Pearson, D Rigopoulou, D Scott, JA Stevens, M Trichas, L Vigroux, M Carollo, S Lilly, T Contini, A Renzini, M Scodeggio
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NGC1266 as a Local Candidate for Rapid Cessation of Star Formation

(2013)

Authors:

Katherine Alatalo, Kristina Nyland, Genevieve Graves, Kristen Shapiro Griffin, Pierre-Alain Duc, Michele Cappellari, Richard M McDermid, Timothy A Davis, Alison F Crocker, Lisa M Young, Philip Chang, Nicholas Scott, Sabrina L Cales, Estelle Bayet, Leo Blitz, Maxime Bois, Frédéric Bournaud, Martin Bureau, Roger L Davies, P Tim de Zeeuw, Eric Emsellem, Sadegh Khochfar, Davor Krajnović, Harald Kuntschner, Raffaella Morganti, Thorsten Naab, Tom Oosterloo, Marc Sarzi, Paolo Serra, Anne-Marie Weijmans
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A low-mass cut-off near the hydrogen burning limit for Salpeter-like initial mass functions in early-type galaxies

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 436:1 (2013) 253-258

Authors:

Matteo Barnabè, Chiara Spiniello, Léon VE Koopmans, Scott C Trager, Oliver Czoske, Tommaso Treu
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Shock Excited Molecules in NGC 1266: ULIRG conditions at the center of a Bulge Dominated Galaxy

(2013)

Authors:

EW Pellegrini, JD Smith, MG Wolfire, BT Draine, AF Crocker, KV Croxall, P van der Werf, DA Dale, D Rigopoulou, CD Wilson, E Schinnerer, BA Groves, K Kreckel, KM Sandstrom, L Armus, D Calzetti, EJ Murphy, F Walter, J Koda, E Bayet, P Beirao, AD Bolatto, M Bradford, E Brinks, L Hunt, R Kennicutt, JH Knapen, AK Leroy, E Rosolowsky, L Vigroux, RHB Hopwood
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