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91探花
Black Hole

Lensing of space time around a black hole. At 91探花 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.

Martin Bureau

Professor of Astrophysics

Research theme

  • Astronomy and astrophysics

Sub department

  • Astrophysics

Research groups

  • Galaxy formation and evolution
  • Hintze Centre for Astrophysical Surveys
martin.bureau@physics.ox.ac.uk
Telephone: 01865 (2)73377
Denys Wilkinson Building, room 701
  • About
  • Publications

The HASHTAG project I. A Survey of CO(3鈥2) Emission from the Star Forming Disc of M31

Monthly Notices of the Royal Astronomical Society 91探花 University Press (OUP) (2019)

Authors:

Zongnan Li, Zhiyuan Li, Matthew WL Smith, Christine D Wilson, Yu Gao, Stephen A Eales, Yiping Ao, Martin Bureau, Aeree Chung, Timothy A Davis, Richard de Grijs, David J Eden, Jinhua He, Tom M Hughes, Xuejian Jiang, Francisca Kemper, Isabella Lamperti, Bumhyun Lee, Chien-Hsiu Lee, Micha艂 J Micha艂owski, Harriet Parsons, Sarah Ragan, Peter Scicluna, Yong Shi, Xindi Tang, Neven Tomi膷i膰, Sebastien Viaene, Thomas G Williams, Ming Zhu

Abstract:

Abstract We present a CO(3鈥2) survey of selected regions in the M31 disc as part of the JCMT large programme, HARP and SCUBA-2 High-Resolution Terahertz Andromeda Galaxy Survey (HASHTAG). The 12 CO(3鈥2) fields in this survey cover a total area of 60 square arcminutes, spanning a deprojected radial range of 2 鈥 14聽kpc across the M31 disc. Combining these observations with existing IRAM 30m CO(1鈥0) observations and JCMT CO(3鈥2) maps of the nuclear region of M31, as well as dust temperature and star formation rate surface density maps, we are able to explore the radial distribution of the CO(3鈥2)/CO(1鈥0) integrated intensity ratio (R31) and its relationship with dust temperature and star formation. We find that the value of R31 between 2 鈥 9聽kpc galactocentric radius is 0.14, significantly lower than what is seen in the nuclear ring at 聽1聽kpc (R31 鈭 0.8), only to rise again to 0.27 for the fields centred on the 10聽kpc star forming ring. We also found that R31 is positively correlated with dust temperature, with Spearman鈥檚 rank correlation coefficient 蟻 = 0.55. The correlation between star formation rate surface density and CO(3鈥2) intensity is much stronger than with CO(1鈥0), with 蟻 = 0.54 compared to 鈥0.05, suggesting that the CO(3鈥2) line traces warmer and denser star forming gas better. We also find that R31 correlates well with star formation rate surface density, with 蟻 = 0.69.

The HASHTAG project I. A Survey of CO(3-2) Emission from the Star Forming Disc of M31

(2019)

Authors:

Zongnan Li, Zhiyuan Li, Matthew WL Smith, Christine D Wilson, Yu Gao, Stephen A Eales, Yiping Ao, Martin Bureau, Aeree Chung, Timothy A Davis, Richard de Grijs, David J Eden, Jinhua He, Tom M Hughes, Xuejian Jiang, Francisca Kemper, Isabella Lamperti, Bumhyun Lee, Chien-Hsiu Lee, Michal J Michalowski, Harriet Parsons, Sarah Ragan, Peter Scicluna, Yong Shi, Xindi Tang, Neven Tomicic, Sebastien Viaene, Thomas G Williams, Ming Zhu

The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

(2019)

Authors:

Romina Ahumada, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott F Anderson, Brett H Andrews, Borja Anguiano, Riccardo Arcodia, Eric Armengaud, Marie Aubert, Santiago Avila, Vladimir Avila-Reese, Carles Badenes, Christophe Balland, Kat Barger, Jorge K Barrera-Ballesteros, Sarbani Basu, Julian Bautista, Rachael L Beaton, Timothy C Beers, B Izamar T Benavides, Chad F Bender, Mariangela Bernardi, Matthew Bershady, Florian Beutler, Christian Moni Bidin, Jonathan Bird, Dmitry Bizyaev, Guillermo A Blanc, Michael R Blanton, Mederic Boquien, Jura Borissova, Jo Bovy, WN Brandt, Jonathan Brinkmann, Joel R Brownstein, Kevin Bundy, Martin Bureau, Adam Burgasser, Etienne Burtin, Mariana Cano-Diaz, Raffaella Capasso, Michele Cappellari, Ricardo Carrera, Solene Chabanier, William Chaplin, Michael Chapman, Brian Cherinka, Cristina Chiappini, Peter Doohyun Choi, S Drew Chojnowski, Haeun Chung, Nicolas Clerc, Damien Coffey, Julia M Comerford, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D Crane, Katia Cunha, Gabriele da Silva Ilha, Yu Sophia Dai, Sanna B Damsted, Jeremy Darling, James W Davidson, Roger Davies, Kyle Dawson, Nikhil De, Axel de la Macorra, Nathan De Lee, Anna Barbara de Andrade Queiroz, Alice Deconto Machado, Sylvain de la Torre, Flavia Dell'Agli, Helion du Mas des Bourboux, Aleksandar M Diamond-Stanic, Sean Dillon, John Donor, Niv Drory, Chris Duckworth, Tom Dwelly, Garrett Ebelke, Sarah Eftekharzadeh, Arthur Davis Eigenbrot, Yvonne P Elsworth, Mike Eracleous, Ghazaleh Erfanianfar, Stephanie Escoffier, Xiaohui Fan, Emily Farr, Jose G Fernandez-Trincado, Diane Feuillet, Alexis Finoguenov, Patricia Fofie, Amelia Fraser-McKelvie, Peter M Frinchaboy, Sebastien Fromenteau, Hai Fu, Lluis Galbany, Rafael A Garcia, DA Garcia-Hernandez, Luis Alberto Garma Oehmichen, Junqiang Ge, Marcio Antonio Geimba Maia, Doug Geisler, Joseph Gelfand, Julian Goddy, Jean-Marc Le Goff, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul Green, Catherine J Grier, Hong Guo, Julien Guy, Paul Harding, Sten Hasselquist, Adam James Hawken, Christian R Hayes, Fred Hearty, S Hekker, David W Hogg, Jon Holtzman, Danny Horta, Jiamin Hou, Bau-Ching Hsieh, Daniel Huber, Jason AS Hunt, J Ider Chitham, Julie Imig, Mariana Jaber, Camilo Eduardo Jimenez Angel, Jennifer A Johnson, Amy M Jones, Henrik Jonsson, Eric Jullo, Yerim Kim, Karen Kinemuchi, Charles C Kirkpatrick, George W Kite, Mark Klaene, Jean-Paul Kneib, Juna A Kollmeier, Hui Kong, Marina Kounkel, Dhanesh Krishnarao, Ivan Lacerna, Ting-Wen Lan, Richard R Lane, David R Law, Henry W Leung, Hannah Lewis, Cheng Li, Jianhui Lian, Lihwai Lin, Dan Long, Penelope Longa-Pena, Britt Lundgren, Brad W Lyke, J Ted Mackereth, Chelsea L MacLeod, Steven R Majewski, Arturo Manchado, Claudia Maraston, Paul Martini, Thomas Masseron, Karen L Masters, Savita Mathur, Richard M McDermid, Andrea Merloni, Michael Merrifield, Szabolcs Meszaros, Andrea Miglio, Dante Minniti, Rebecca Minsley, Takamitsu Miyaji, Faizan Gohar Mohammad, Benoit Mosser, Eva-Maria Mueller, Demitri Muna, Andrea Munoz-Gutierrez, Adam D Myers, Seshadri Nadathur, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Rebecca Jean Nevin, Jeffrey A Newman, David L Nidever, Christian Nitschelm, Pasquier Noterdaeme, Julia E O'Connell, Matthew D Olmstead, Daniel Oravetz, Audrey Oravetz, Yeisson Osorio, Zachary J Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro A Palicio, Hsi-An Pan, Kaike Pan, James Parker, Romain Paviot, Sebastien Peirani, Karla Pena Ramrez, Samantha Penny, Will J Percival, Ismael Perez-Fournon, Ignasi Perez-Rafols, Patrick Petitjean, Matthew M Pieri, Marc Pinsonneault, Vijith Jacob Poovelil, Joshua Tyler Povick, Abhishek Prakash, Adrian M Price-Whelan, M Jordan Raddick, Anand Raichoor, Amy Ray, Sandro Barboza Rembold, Mehdi Rezaie, Rogemar A Riffel, Rogerio Riffel, Hans-Walter Rix, Annie C Robin, A Roman-Lopes, Carlos Roman-Zuniga, Benjamin Rose, Ashley J Ross, Graziano Rossi, Kate Rowlands, Kate HR Rubin, Mara Salvato, Ariel G Sanchez, Laura Sanchez-Menguiano, Jose R Sanchez-Gallego, Conor Sayres, Adam Schaefer, Ricardo P Schiavon, Jaderson S Schimoia, Edward Schlafly, David Schlegel, Donald P Schneider, Mathias Schultheis, Axel Schwope, Hee-Jong Seo, Aldo Serenelli, Arman Shafieloo, Shoaib Jamal Shamsi, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Raphael Shirley, Victor Silva Aguirre, Joshua D Simon, MF Skrutskie, Anze Slosar, Rebecca Smethurst, Jennifer Sobeck, Bernardo Cervantes Sodi, Diogo Souto, David V Stark, Keivan G Stassun, Matthias Steinmetz, Dennis Stello, Julianna Stermer, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S Stringfellow, Amelia Stutz, Genaro Suarez, Jing Sun, Manuchehr Taghizadeh-Popp, Michael S Talbot, Jamie Tayar, Aniruddha R Thakar, Riley Theriault, Daniel Thomas, Zak C Thomas, Jeremy Tinker, Rita Tojeiro, Hector Hernandez Toledo, Christy A Tremonti, Nicholas W Troup, Sarah Tuttle, Eduardo Unda-Sanzana, Marica Valentini, Jaime Vargas-Gonzalez, Mariana Vargas-Magana, Jose Antonio Vazquez-Mata, M Vivek, David Wake, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, Vivienne Wild, John C Wilson, Robert F Wilson, Nathan Wolthuis, WM Wood-Vasey, Renbin Yan, Meng Yang, Christophe Yeche, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Cheng Zhao, Gongbo Zhao, Zheng Zheng, Zheng Zheng, Guangtun Zhu, Hu Zou

WISDOM project 鈥 V. Resolving molecular gas in Keplerian rotation around the supermassive black hole in NGC鈥0383

Monthly Notices of the Royal Astronomical Society 91探花 University Press (OUP) 490:1 (2019) 319-330

Authors:

Eve V North, Timothy A Davis, Martin Bureau, Michele Cappellari, Satoru Iguchi, Lijie Liu, Kyoko Onishi, Marc Sarzi, Mark D Smith, Thomas G Williams

Abstract:

ABSTRACT As part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM), we present a measurement of the mass of the supermassive black hole (SMBH) in the nearby early-type galaxy NGC鈥0383 (radio source 3C鈥031). This measurement is based on Atacama Large Millimeter/sub-millimeter Array (ALMA) cycle 4 and 5 observations of the 12CO(2鈥1) emission line with a spatial resolution of 58聽脳聽32鈥塸c2 (0.18聽arcsec聽脳聽0.1聽arcsec). This resolution, combined with a channel width of 10鈥塳m鈥塻鈭1, allows us to well resolve the radius of the black hole sphere of influence (measured as RSOI聽= 316鈥塸c鈥壜=聽鈥0.98聽arcsec), where we detect a clear Keplerian increase of the rotation velocities. NGC鈥0383 has a kinematically relaxed, smooth nuclear molecular gas disc with weak ring/spiral features. We forward model the ALMA data cube with the Kinematic Molecular Simulation (KinMS) tool and a Bayesian Markov Chain Monte Carlo method to measure an SMBH mass of (4.2聽卤聽0.7)聽脳 109鈥塎鈯, a F160W-band stellar mass-to-light ratio that varies from 2.8聽卤聽0.6鈥塎鈯/L$_{\odot ,\, \mathrm{F160W}}$ in the centre to 2.4聽卤聽0.3鈥塎鈯$/\rm L_{\odot ,\, \mathrm{F160W}}$ at the outer edge of the disc and a molecular gas velocity dispersion of 8.3聽卤聽2.1鈥塳m鈥塻鈭1(all 3蟽 uncertainties). We also detect unresolved continuum emission across the full bandwidth, consistent with synchrotron emission from an active galactic nucleus. This work demonstrates that low-J CO emission can resolve gas very close to the SMBH ($\approx 140\, 000$ Schwarzschild radii) and hence that the molecular gas method is highly complimentary to megamaser observations, as it can probe the same emitting material.

SIGNALS: I. Survey description

Monthly Notices of the Royal Astronomical Society 91探花 University Press (OUP) 489:4 (2019) 5530-5546

Authors:

L Rousseau-Nepton, RP Martin, C Robert, L Drissen, P Amram, S Prunet, T Martin, I Moumen, A Adamo, A Alarie, P Barmby, A Boselli, F Bresolin, M Bureau, L Chemin, RC Fernandes, F Combes, C Crowder, L Della聽Bruna, S Duarte聽Puertas, F Egusa, B Epinat, VF Ksoll, M Girard, V G贸mez聽Llanos, D Gouliermis, K Grasha, C Higgs, J Hlavacek-Larrondo, I-T Ho, J Iglesias-P谩ramo, G Joncas, ZS Kam, P Karera, RC Kennicutt, RS Klessen, S Lianou, L Liu, Q Liu, A Luiz de聽Amorim, JD Lyman, H Martel, B Mazzilli-Ciraulo, AF McLeod, A-L Melchior, I Millan, M Moll谩, R Momose, C Morisset, H-A Pan, AK Pati, A Pellerin, E Pellegrini, I P茅rez, A Petric, H Plana, D Rahner, T Ruiz聽Lara, L S谩nchez-Menguiano, K Spekkens, G Stasi艅ska, M Takamiya, N Vale聽Asari, JM V铆lchez

Abstract:

ABSTRACT SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing programme designed to investigate massive star formation and H鈥塱i regions in a sample of local extended galaxies. The programme will use the imaging Fourier transform spectrograph SITELLE at the Canada鈥揊rance鈥揌awaii Telescope. Over 355聽h (54.7 nights) have been allocated beginning in fall 2018 for eight consecutive semesters. Once completed, SIGNALS will provide a statistically reliable laboratory to investigate massive star formation, including over 50鈥000 resolved H鈥塱i regions: the largest, most complete, and homogeneous data base of spectroscopically and spatially resolved extragalactic H鈥塱i regions ever assembled. For each field observed, three datacubes covering the spectral bands of the filters SN1 (363鈥386鈥塶m), SN2 (482鈥513鈥塶m), and SN3 (647鈥685鈥塶m) are gathered. The spectral resolution selected for each spectral band is 1000, 1000, and 5000, respectively. As defined, the project sample will facilitate the study of small-scale nebular physics and many other phenomena linked to star formation at a mean spatial resolution of 鈭20鈥塸c. This survey also has considerable legacy value for additional topics, including planetary nebulae, diffuse ionized gas, and supernova remnants. The purpose of this paper is to present a general outlook of the survey, notably the observing strategy, galaxy sample, and science requirements.

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