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Black Hole

Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.

Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.

Prof. Dimitra Rigopoulou

Professor of Astrophysics

Research theme

  • Astronomy and astrophysics

Sub department

  • Astrophysics

Research groups

  • Galaxy formation and evolution
Dimitra.Rigopoulou@physics.ox.ac.uk
Telephone: 01865 (2)73296
Denys Wilkinson Building, room 75419514947
  • About
  • Publications

The roles of star formation and AGN activity of IRS sources in the HerMES fields

(2013)

Authors:

Anna Feltre, Evanthia Hatziminaoglou, Antonio Hernán-Caballero, Jacopo Frtiz, Alberto Franceschini, Jamie Bock, Asantha Cooray, Duncan Farrah, Eduardo A Gonzalez-Solares, Edo Ibar, Kate G Isaak, Barbara Lo Faro, Lucia Marchetti, Seb J Oliver, Mathew J Page, Dimitra Rigopoulou, Isaac G Roseboom, Myrto Symeonidis, Mattia Vaccari
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Herschel-SPIRE-Fourier Transform Spectroscopy of the nearby spiral galaxy IC342

(2013)

Authors:

D Rigopoulou, PD Hurley, BM Swinyard, J Virdee, KV Croxall, RHB Hopwood, T Lim, GE Magdis, CP Pearson, E Pellegrini, E Polehampton, J-D Smith
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Seds: The spitzer extended deep survey. Survey design, photometry, and deep irac source counts

Astrophysical Journal 769:1 (2013)

Authors:

MLN Ashby, SP Willner, GG Fazio, JS Huang, R Arendt, P Barmby, G Barro, EF Bell, R Bouwens, A Cattaneo, D Croton, R Davé, JS Dunlop, E Egami, S Faber, K Finlator, NA Grogin, P Guhathakurta, L Hernquist, JL Hora, G Illingworth, A Kashlinsky, AM Koekemoer, DC Koo, I Labbé, Y Li, L Lin, H Moseley, K Nandra, J Newman, K Noeske, M Ouchi, M Peth, D Rigopoulou, B Robertson, V Sarajedini, L Simard, HA Smith, Z Wang, R Wechsler, B Weiner, G Wilson, S Wuyts, T Yamada, H Yan

Abstract:

The Spitzer Extended Deep Survey (SEDS) is a very deep infrared survey within five well-known extragalactic science fields: the UKIDSS Ultra-Deep Survey, the Extended Chandra Deep Field South, COSMOS, the Hubble Deep Field North, and the Extended Groth Strip. SEDS covers a total area of 1.46 deg 2 to a depth of 26 AB mag (3σ) in both of the warm Infrared Array Camera (IRAC) bands at 3.6 and 4.5 μm. Because of its uniform depth of coverage in so many widely-separated fields, SEDS is subject to roughly 25% smaller errors due to cosmic variance than a single-field survey of the same size. SEDS was designed to detect and characterize galaxies from intermediate to high redshifts (z = 2-7) with a built-in means of assessing the impact of cosmic variance on the individual fields. Because the full SEDS depth was accumulated in at least three separate visits to each field, typically with six-month intervals between visits, SEDS also furnishes an opportunity to assess the infrared variability of faint objects. This paper describes the SEDS survey design, processing, and publicly-available data products. Deep IRAC counts for the more than 300,000 galaxies detected by SEDS are consistent with models based on known galaxy populations. Discrete IRAC sources contribute 5.6 ± 1.0 and 4.4 ± 0.8 nW m-2 sr-1 at 3.6 and 4.5 μm to the diffuse cosmic infrared background (CIB). IRAC sources cannot contribute more than half of the total CIB flux estimated from DIRBE data. Barring an unexpected error in the DIRBE flux estimates, half the CIB flux must therefore come from a diffuse component. © 2013. The American Astronomical Society. All rights reserved.
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Far-IR Emission From Dust-Obscured Galaxies

(2013)

Authors:

JA Calanog, J Wardlow, Hai Fu, A Cooray, RJ Assef, J Bock, CM Casey, A Conley, D Farrah, E Ibar, J Kartaltepe, G Magdis, L Marchetti, SJ Oliver, I Perez-Fournon, D Riechers, D Rigopoulou, IG Roseboom, B Schulz, Douglas Scott, M Symeonidis, M Vaccari, M Viero, M Zemcov
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Herschel-ATLAS/GAMA: What determines the far-infrared properties of radio-galaxies?

(2013)

Authors:

Jasmeer Virdee, Martin Hardcastle, Steven Rawlings, Dimitra Rigopoulou, Tom Mauch, Matt Jarvis, Aprajita Verma, Daniel Smith, Ian Heywood, Sarah White, Martin Baes, Asantha Cooray, Gianfranco De Zotti, Steve Eales, Michal Michalowski, Nathan Bourne, Ali Dariush, Loretta Dunne, Rosalind Hopwood, Eduardo Ibar, Steve Maddox, Matthew Smith, Elisabetta Valiante
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