Prof. Dimitra Rigopoulou: Publications

A Complete 16 mu m Selected Galaxy Sample at z similar to 1: Mid-infrared Spectral Energy Distributions

ASTROPHYSICAL JOURNAL 912:2 (2021) ARTN 161

Authors:

J-S Huang, Y-S Dai, SP Willner, SM Faber, C Cheng, H Xu, H Yan, S Wu, X Shao, C Hao, X Xia, D Rigopoulou, M Pereira Santaella, G Magdis, I Cortzen, GG Fazio, P Assmann, L Fan, M Musin, Z Wang, KC Xu, C He, G Jin, A Esamdin

Resolved Neutral Outflow from a Lensed Dusty Star Forming Galaxy at z=2.09

(2021)

Authors:

Kirsty M Butler, Paul P van der Werf, Matus Rybak, Tiago Costa, Pierre Cox, Axel Weiß, Michał J Michałowski, Dominik A Riechers, Dimitra Rigopoulou, Lucia Marchetti, Stephen Eales, Ivan Valtchanov

The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies

(2021)

Authors:

S García-Burillo, A Alonso-Herrero, C Ramos Almeida, O González-Martín, F Combes, A Usero, S Hönig, M Querejeta, EKS Hicks, LK Hunt, D Rosario, R Davies, PG Boorman, AJ Bunker, L Burtscher, L Colina, T Díaz-Santos, P Gandhi, I García-Bernete, B García-Lorenzo, K Ichikawa, M Imanishi, T Izumi, A Labiano, NA Levenson, E López-Rodríguez, C Packham, M Pereira-Santaella, C Ricci, D Rigopoulou, D Rouan, T Shimizu, M Stalevski, K Wada, D Williamson

Are local ULIRGs powered by AGN? The sub-kpc view of the 220 GHz continuum. PUMA II

(2021)

Authors:

M Pereira-Santaella, L Colina, S García-Burillo, I Lamperti, E González-Alfonso, M Perna, S Arribas, A Alonso-Herrero, S Aalto, F Combes, A Labiano, J Piqueras-López, D Rigopoulou, P van der Werf

Integral field spectroscopy of luminous infrared main-sequence galaxies at cosmic noon

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 503:4 (2021) 5329-5350

Authors:

L Hogan, D Rigopoulou, GE Magdis, M Pereira-Santaella, I García-Bernete, N Thatte, K Grisdale, J-S Huang

Abstract:

ABSTRACT We present the results of an integral field spectroscopy survey of a sample of dusty (ultra) luminous infrared galaxies (U/LIRGs) at 2 < z < 2.5 using KMOS on the Very Large Telescope. The sample has been drawn from Herschel deep field surveys and benefits from ancillary multiwavelength data. Our goal is to investigate the physical characteristics, kinematics, and the drivers of star formation in the galaxies whose contribution dominates the peak of the cosmic star formation density. Two-thirds of the sample are main-sequence galaxies in contrast to the starburst nature of local U/LIRGs. Our kinematic study, unique in its focus on z ∼ 2 dusty star-forming galaxies, uses the H α emission line to find that ∼40 per cent appear to be isolated discs based on the ratio of rotational velocity to the velocity dispersion, suggesting steady-state mechanisms are sufficient to power the large star formation rates (SFRs). The ratio of obscured to unobscured star formation indicates the sample of galaxies experiences less dust obscuration compared to intermediate and local counterparts, while also hosting cooler dust than local U/LIRGs. In addition to H α we detect [N ii] 6583 Å in our targets and show the gas-phase metallicities do not exhibit the metal deficiency of local U/LIRGs. These results indicate that, despite their extreme IR luminosity, the underlying mechanisms driving the massive SFRs found at cosmic noon are due to scaled up disc galaxies as opposed to mergers.

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