C
Cherry Ng
Researcher at University of Toronto
Publications - 219
Citations - 14331
Cherry Ng is an academic researcher from University of Toronto. The author has contributed to research in topics: Pulsar & Millisecond pulsar. The author has an hindex of 50, co-authored 186 publications receiving 10978 citations. Previous affiliations of Cherry Ng include Search for extraterrestrial intelligence & University of Hong Kong.
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Algorithms for FFT Beamforming Radio Interferometers
TL;DR: In this article, the authors developed a formalism for describing the Fourier transform beamforming process and applied this formalism to derive a number of algorithms with a range of observational applications.
Posted Content
Searching For Gravitational Waves From Cosmological Phase Transitions With The NANOGrav 12.5-year dataset
Zaven Arzoumanian,Paul T. Baker,Harsha Blumer,B. Bécsy,Adam Brazier,Paul R. Brook,Sarah Burke-Spolaor,Maria Charisi,Shami Chatterjee,Siyuan Chen,James M. Cordes,Neil J. Cornish,Fronefield Crawford,H. Thankful Cromartie,Megan E. DeCesar,Paul Demorest,Timothy Dolch,Justin A. Ellis,Elizabeth C. Ferrara,William Fiore,Emmanuel Fonseca,Nathan Garver-Daniels,Peter A. Gentile,Deborah C. Good,Jeffrey S. Hazboun,A. Miguel Holgado,K. Islo,Ross J. Jennings,Megan L. Jones,Andrew R. Kaiser,David L. Kaplan,Luke Zoltan Kelley,Joey Shapiro Key,Nima Laal,Michael T. Lam,T. Joseph W. Lazio,Vincent S. H. Lee,Duncan R. Lorimer,Jing Luo,Ryan S. Lynch,Dustin R. Madison,Maura McLaughlin,Chiara M. F. Mingarelli,Andrea Mitridate,Cherry Ng,David J. Nice,Timothy T. Pennucci,Nihan Pol,Scott M. Ransom,Paul S. Ray,Brent J. Shapiro-Albert,Xavier Siemens,Joseph Simon,Renée Spiewak,Ingrid H. Stairs,Daniel R. Stinebring,Kevin Stovall,Jerry P. Sun,Joseph K. Swiggum,Stephen Taylor,J. E. Turner,Michele Vallisneri,Sarah J. Vigeland,Caitlin A. Witt,Kathryn M. Zurek +64 more
TL;DR: In this article, the authors search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5 year dataset and find that the signal from a first order phase transition is degenerate with that generated by Supermassive Black Hole Binary mergers.
Journal ArticleDOI
High angular resolution ALMA images of dust and molecules in the SN 1987A ejecta
Phil Cigan,Mikako Matsuura,Haley Louise Gomez,Remy Indebetouw,F. J. Abellan,Michael Gabler,Anita M. S. Richards,Dennis Alp,Timothy A. Davis,Hans-Thomas Janka,Jason Spyromilio,M. J. Barlow,David N. Burrows,Eli Dwek,Claes Fransson,Bryan Gaensler,Josefin Larsson,Patrice Bouchet,Peter Lundqvist,J. M. Marcaide,Cherry Ng,Sangwook Park,Patrick F. Roche,Jacco Th. van Loon,J. C. Wheeler,Giovanna Zanardo +25 more
TL;DR: In this article, high angular resolution (~80 mas) ALMA continuum images of the SN 1987A system, together with CO$J$=2 $\!\rightarrow\!$ 1, $J$ =6 $\! \rightarrow/!$ 5, and SiO $J=5 $\! ǫ 6 images, were presented, which clearly resolve the ejecta and ring (synchrotron continuum) components.
Journal ArticleDOI
PSR J1024-0719: A Millisecond Pulsar in an Unusual Long-Period Orbit
David L. Kaplan,Thomas Kupfer,David J. Nice,Andreas Irrgang,Ulrich Heber,Zaven Arzoumanian,Elif Beklen,Elif Beklen,Kathryn Crowter,Megan E. DeCesar,Paul Demorest,Timothy Dolch,Justin A. Ellis,Robert D. Ferdman,Elizabeth C. Ferrara,Emmanuel Fonseca,P. A. Gentile,Glenn Jones,Megan L. Jones,Simon Kreuzer,Michael T. Lam,Lina Levin,Duncan R. Lorimer,Ryan S. Lynch,Maura McLaughlin,Adam A. Miller,Cherry Ng,Timothy T. Pennucci,Thomas A. Prince,Scott M. Ransom,Paul S. Ray,Renée Spiewak,Ingrid H. Stairs,Ingrid H. Stairs,Kevin Stovall,Joseph K. Swiggum,Weiwei Zhu +36 more
TL;DR: In this article, the authors present updated radio timing observations along with new and archival optical data that show PSR J1024$-$0719 is most likely in a long period (2$-$20 kyr) binary system with a low-mass ($\approx 0.4\,M_\odot$) low-metallicity ($Z \approx -0.9\,$ dex) main sequence star.
Journal ArticleDOI
The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc
Zaven Arzoumanian,Paul T. Baker,Adam Brazier,Paul R. Brook,Sarah Burke-Spolaor,B. Bécsy,Maria Charisi,Shami Chatterjee,James M. Cordes,Neil J. Cornish,Fronefield Crawford,H. Thankful Cromartie,Megan E. DeCesar,Paul Demorest,Timothy Dolch,Rodney D. Elliott,Justin A. Ellis,Elizabeth C. Ferrara,Emmanuel Fonseca,Nathan Garver-Daniels,Peter A. Gentile,Deborah C. Good,Jeffrey S. Hazboun,K. Islo,Ross J. Jennings,Megan L. Jones,Andrew R. Kaiser,David L. Kaplan,Luke Zoltan Kelley,Joey Shapiro Key,Michael T. Lam,T. Joseph W. Lazio,Jing Luo,Ryan S. Lynch,Chung-Pei Ma,Dustin R. Madison,Maura McLaughlin,Chiara M. F. Mingarelli,Cherry Ng,David J. Nice,Timothy T. Pennucci,Nihan Pol,Scott M. Ransom,Paul S. Ray,Brent J. Shapiro-Albert,Xavier Siemens,Joseph Simon,Renée Spiewak,Ingrid H. Stairs,Daniel R. Stinebring,Kevin Stovall,Joseph K. Swiggum,Stephen Taylor,Michele Vallisneri,Sarah J. Vigeland,Caitlin A. Witt +55 more
TL;DR: In this article, the authors used upper limits on continuous GWs from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 11yr dataset to place constraints on putative supermassive black hole binaries in nearby massive galaxies.