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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.

Michele Cappellari

Professor of Astrophysics

Research theme

  • Astronomy and astrophysics

Sub department

  • Astrophysics

Research groups

  • Galaxy formation and evolution
  • Extremely Large Telescope
michele.cappellari@physics.ox.ac.uk
Telephone: 01865 (2)73647
Denys Wilkinson Building, room 755
  • About
  • Publications

Being KLEVER at cosmic noon: ionised gas outflows are inconspicuous in low-mass star-forming galaxies but prominent in massive AGN hosts

(2022)

Authors:

Alice Concas, Roberto Maiolino, Mirko Curti, Connor Hayden-Pawson, Michele Cirasuolo, Gareth C Jones, Amata Mercurio, Francesco Belfiore, Giovanni Cresci, Fergus Cullen, Filippo Mannucci, Alessandro Marconi, Michele Cappellari, Claudia Cicone, Yingjie Peng, Paulina Troncoso
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The seventeenth data release of the sloan digital sky surveys: complete release of MaNGA, MaStar, and APOGEE-2 data

Astrophysical Journal Supplement American Astronomical Society 259:2 (2022) 35

Authors:

Abdurro'uf, Katherine Accetta, Conny Aerts, Victor Silva Aguirre, Romina Ahumada, Nikhil Ajgaonkar, N Filiz Ak, Shadab Alam, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott F Anderson, Brett H Andrews, Borja Anguiano, Erik Aquino-Ortiz, Alfonso Aragon-Salamanca, Maria Argudo-Fernandez, Metin Ata, Marie Aubert, Vladimir Avila-Reese, Carles Badenes, Rodolfo H Barba, Kat Barger, Jorge K Barrera-Ballesteros, Rachael L Beaton, Timothy C Beers, Francesco Belfiore, Chad F Bender, Mariangela Bernardi, Matthew A Bershady, Florian Beutler, Christian Moni Bidin, Jonathan C Bird, Dmitry Bizyaev, Guillermo A Blanc, Michael R Blanton, Nicholas Fraser Boardman, Adam S Bolton, Mederic Boquien, Jura Borissova, Jo Bovy, Wn Brandt, Jordan Brown, Joel R Brownstein, Marcella Brusa, Johannes Buchner, Kevin Bundy, Joseph N Burchett, Martin Bureau, Adam Burgasser

Abstract:

This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal of surveying over 10,000 nearby galaxies. The complete release of the MaNGA Stellar Library accompanies this data, providing observations of almost 30,000 stars through the MaNGA instrument during bright time. DR17 also contains the complete release of the Apache Point Observatory Galactic Evolution Experiment 2 survey that publicly releases infrared spectra of over 650,000 stars. The main sample from the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), as well as the subsurvey Time Domain Spectroscopic Survey data were fully released in DR16. New single-fiber optical spectroscopy released in DR17 is from the SPectroscipic IDentification of ERosita Survey subsurvey and the eBOSS-RM program. Along with the primary data sets, DR17 includes 25 new or updated value-added catalogs. This paper concludes the release of SDSS-IV survey data. SDSS continues into its fifth phase with observations already underway for the Milky Way Mapper, Local Volume Mapper, and Black Hole Mapper surveys.
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WISDOM Project - X. The morphology of the molecular ISM in galaxy centres and its dependence on galaxy structure

Monthly Notices of the Royal Astronomical Society Oxford University Press (2022)

Authors:

Timothy A Davis, Jindra Gensior, Martin Bureau, Michele Cappellari, Woorak Choi, Jacob S Elford, JM Diederik Kruijssen, Federico Lelli, Fu-Heng Liang, Lijie Liu, Ilaria Ruffa, Toshiki Saito, Marc Sarzi, Andreas Schruba, Thomas G Williams

Abstract:

We use high-resolution maps of the molecular interstellar medium (ISM) in the centres of eighty-six nearby galaxies from the millimetre-Wave Interferometric Survey of Dark Object Masses (WISDOM) and Physics at High Angular Resolution in Nearby GalaxieS (PHANGS) surveys to investigate the physical mechanisms setting the morphology of the ISM at molecular cloud scales. We show that early-type galaxies tend to have smooth, regular molecular gas morphologies, while the ISM in spiral galaxy bulges is much more asymmetric and clumpy when observed at the same spatial scales. We quantify these differences using non-parametric morphology measures (Asymmetry, Smoothness and Gini), and compare these measurements with those extracted from idealised galaxy simulations. We show that the morphology of the molecular ISM changes systematically as a function of various large scale galaxy parameters, including galaxy morphological type, stellar mass, stellar velocity dispersion, effective stellar mass surface density, molecular gas surface density, star formation efficiency and the presence of a bar. We perform a statistical analysis to determine which of these correlated parameters best predicts the morphology of the ISM. We find the effective stellar mass surface (or volume) density to be the strongest predictor of the morphology of the molecular gas, while star formation and bars maybe be important secondary drivers. We find that gas self-gravity is not the dominant process shaping the morphology of the molecular gas in galaxy centres. Instead effects caused by the depth of the potential well such as shear, suppression of stellar spiral density waves and/or inflow affect the ability of the gas to fragment.
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WISDOM Project -- X. The morphology of the molecular ISM in galaxy centres and its dependence on galaxy structure

(2022)

Authors:

Timothy A Davis, Jindra Gensior, Martin Bureau, Michele Cappellari, Woorak Choi, Jacob S Elford, JM Diederik Kruijssen, Federico Lelli, Fu-Heng Liang, Lijie Liu, Ilaria Ruffa, Toshiki Saito, Marc Sarzi, Andreas Schruba, Thomas G Williams
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SDSS-IV MaNGA: Understanding Ionized Gas Turbulence Using Integral Field Spectroscopy of 4500 Star-forming Disk Galaxies

The Astrophysical Journal American Astronomical Society 928:1 (2022) 58

Authors:

David R Law, Francesco Belfiore, Matthew A Bershady, Michele Cappellari, Niv Drory, Karen L Masters, Kyle B Westfall, Dmitry Bizyaev, Kevin Bundy, Kaike Pan, Renbin Yan
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