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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.

Dr Rebecca Bowler

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Research theme

  • Astronomy and astrophysics

Sub department

  • Astrophysics

Research groups

  • Beecroft Institute for Particle Astrophysics and Cosmology
  • Galaxy formation and evolution
rebecca.bowler@physics.ox.ac.uk
  • About
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  • Publications

MIGHTEE: the continuum survey Data Release 1

Monthly Notices of the Royal Astronomical Society Oxford University Press 536:3 (2024) 2187-2211

Authors:

Catherine Hale, Ian Heywood, Matthew Jarvis, Imogen Whittam, Philip Best, Fangxia An, Rebecca Bowler, Ian Harrison, Allison Matthews, Dan Smith, Russ Taylor, Mattia Vaccari

Abstract:

The MeerKAT International GHz Tiered Extragalactic Exploration Survey (MIGHTEE) is one of the large survey projects using the MeerKAT telescope, covering four fields that have a wealth of ancillary data available. We present Data Release 1 of the MIGHTEE continuum survey, releasing total intensity images and catalogues over ∼20 deg2, across three fields at ∼1.2-1.3 GHz. This includes 4.2 deg2 over the Cosmic Evolution Survey (COSMOS) field, 14.4 deg2 over the XMM Large-Scale Structure (XMM-LSS) field and deeper imaging over 1.5 deg2 of the Extended Chandra Deep Field South (CDFS). We release images at both a lower resolution (7–9 arcsec) and higher resolution (∼5 arcsec). These images have central rms sensitivities of ∼1.3 −2.7 μJy beam−1 (∼1.2 −3.6 μJy beam−1) in the lower (higher) resolution images respectively. We also release catalogues comprised of ∼144 000 (∼114 000) sources using the lower (higher) resolution images. We compare the astrometry and flux-density calibration with the Early Science data in the COSMOS and XMM-LSS fields and previous radio observations in the CDFS field, finding broad agreement. Furthermore, we extend the source counts at the ∼10 μJy level to these larger areas (∼20 deg2) and, using the areal coverage of MIGHTEE we measure the sample variance for differing areas of sky. We find a typical sample variance of 10-20percnt for 0.3 and 0.5 sq. deg. sub-regions at S1.4 ≤ 200 μJy, which increases at brighter flux densities, given the lower source density and expected higher galaxy bias for these sources.
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The ALMA-CRISTAL Survey: Spatially Resolved Star Formation Activity and Dust Content in 4 < z < 6 Star-forming Galaxies

The Astrophysical Journal American Astronomical Society 976:1 (2024) 70

Authors:

Juno Li, Elisabete Da Cunha, Jorge González-López, Manuel Aravena, Ilse De Looze, NM Förster Schreiber, Rodrigo Herrera-Camus, Justin Spilker, Ken-ichi Tadaki, Loreto Barcos-Munoz, Andrew J Battisti, Jack E Birkin, Rebecca AA Bowler, Rebecca Davies, Tanio Díaz-Santos, Andrea Ferrara, Deanne B Fisher, Jacqueline Hodge, Ryota Ikeda, Meghana Killi, Lilian Lee, Daizhong Liu, Dieter Lutz, Ikki Mitsuhashi, Thorsten Naab, Ana Posses, Monica Relaño, Manuel Solimano, Hannah Übler, Stefan Anthony van der Giessen, Vicente Villanueva
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The ALMA-CRISTAL survey: Dust temperature and physical conditions of the interstellar medium in a typical galaxy at z = 5.66

Astronomy & Astrophysics EDP Sciences 691 (2024) a133

Authors:

V Villanueva, R Herrera-Camus, J González-López, M Aravena, RJ Assef, M Baeza-Garay, L Barcos-Muñoz, S Bovino, RAA Bowler, E da Cunha, I De Looze, T Diaz-Santos, A Ferrara, NM Förster Schreiber, H Algera, R Ikeda, M Killi, I Mitsuhashi, T Naab, M Relano, J Spilker, M Solimano, M Palla, SH Price, A Posses, K Tadaki, K Telikova, H Übler
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Characterising the contribution of dust-obscured star formation at z ≳ 5 using 18 serendipitously identified [C ii] emitters

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 534:3 (2024) 2062-2085

Authors:

IF van Leeuwen, RJ Bouwens, PP van der Werf, JA Hodge, S Schouws, M Stefanon, HSB Algera, M Aravena, LA Boogaard, RAA Bowler, E da Cunha, P Dayal, R Decarli, V Gonzalez, H Inami, I de Looze, L Sommovigo, BP Venemans, F Walter, L Barrufet, A Ferrara, L Graziani, APS Hygate, P Oesch, M Palla, L Rowland, R Schneider
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JADES NIRSpec initial data release for the Hubble Ultra Deep Field

Astronomy & Astrophysics EDP Sciences 690 (2024) a288

Authors:

Andrew J Bunker, Alex J Cameron, Emma Curtis-Lake, Peter Jakobsen, Stefano Carniani, Mirko Curti, Joris Witstok, Roberto Maiolino, Francesco D’Eugenio, Tobias J Looser, Chris Willott, Nina Bonaventura, Kevin Hainline, Hannah Übler, Christopher NA Willmer, Aayush Saxena, Renske Smit, Stacey Alberts, Santiago Arribas, William M Baker, Stefi Baum, Rachana Bhatawdekar, Rebecca AA Bowler, Kristan Boyett, Stephane Charlot, Zuyi Chen, Jacopo Chevallard, Chiara Circosta, Christa DeCoursey, Anna de Graaff, Eiichi Egami, Daniel J Eisenstein, Ryan Endsley, Pierre Ferruit, Giovanna Giardino, Ryan Hausen, Jakob M Helton, Raphael E Hviding, Zhiyuan Ji, Benjamin D Johnson, Gareth C Jones, Nimisha Kumari, Isaac Laseter, Nora Lützgendorf, Michael V Maseda, Erica Nelson, Eleonora Parlanti, Michele Perna, Bernard J Rauscher, Tim Rawle, Hans-Walter Rix, Marcia Rieke, Brant Robertson, Bruno Rodríguez Del Pino, Lester Sandles, Jan Scholtz, Katherine Sharpe, Maya Skarbinski, Daniel P Stark, Fengwu Sun, Sandro Tacchella, Michael W Topping, Natalia C Villanueva, Imaan EB Wallace, Christina C Williams, Charity Woodrum
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