A. Roy

发表

Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre

A. Niell, D. Werthimer, S. Doeleman, 2008, Nature.

First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

S. T. Timmer, Chih-Wei L. Huang, Alexander W. Raymond, 2019, 1906.11238.

A southern OH megamaser survey.

J. Whiteoak, R. Norris, A. Roy, 1992 .

First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole

Chih-Wei L. Huang, Alexander W. Raymond, K. Souccar, 2019, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. II. Array and Instrumentation

Kevin A. Dudevoir, Daniel C. M. Palumbo, S. T. Timmer, 2019, 1906.11239.

WVR calibration applied to European VLBI observing sessions

A. Nothnagel, R. Haas, A. Roy, 2007 .

A VLA Survey of Rich Clusters of Galaxies II. The Stronger Sources: Maps, Polarisations and Identifications

A. Roy, O. Slee, A. Savage, 1994 .

An extreme example of a radio relic in Abell 4038

A. Roy, O. Slee, 1998 .

Four Extreme Relic Radio Sources in Clusters of Galaxies

H. Andernach, A. Roy, M. Ehle, 2001, astro-ph/0105267.

Radio-excess infrared galaxies: a new population of active galaxies?

R. Norris, A. Roy, 1997 .

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

Chih-Wei L. Huang, Alexander W. Raymond, K. Souccar, 2019, The Astrophysical Journal.

Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution

Daniel C. M. Palumbo, S. T. Timmer, Chih-Wei L. Huang, 2020 .

Monitoring the Morphology of M87* in 2009–2017 with the Event Horizon Telescope

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020, The Astrophysical Journal.

Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020, Physical Review Letters.

Seyfert galaxies and the radio—far-infrared correlation

R. Norris, J. Reynolds, A. Roy, 1998 .

Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

Marcos Emir Moreno Nolasco, Chih-Wei L. Huang, P. K. Leung, 2022, The Astrophysical Journal Letters.

Detection of Intrinsic Source Structure at ∼3 Schwarzschild Radii with Millimeter-VLBI Observations of SAGITTARIUS A*

Alan E. E. Rogers, Roger Cappallo, Kazunori Akiyama, 2018, 1805.09223.

First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration

Chih-Wei L. Huang, P. K. Leung, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

Selective Dynamical Imaging of Interferometric Data

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

Molecular tori in AGN: a search using excited states of OH

A. Roy, C. Impellizzeri, C. Henkel, 2005, astro-ph/0611850.

Molecular tori in AGN: a search using excited states of OH

A. Roy, C. Impellizzeri, C. Henkel, 2005, astro-ph/0611850.

Detection of the H92α recombination line from NGC 4945

W. Goss, T. Oosterloo, A. Roy, 2010 .

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration

Chih-Wei L. Huang, P. K. Leung, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

A Universal Power-law Prescription for Variability from Synthetic Images of Black Hole Accretion Flows

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

Characterizing and Mitigating Intraday Variability: Reconstructing Source Structure in Accreting Black Holes with mm-VLBI

Daniel C. M. Palumbo, Michael F. Wondrak, P. K. Leung, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric

Chih-Wei L. Huang, P. K. Leung, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass

Chih-Wei L. Huang, P. K. Leung, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

Marcos Emir Moreno Nolasco, Chih-Wei L. Huang, P. K. Leung, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

Chih-Wei L. Huang, P. K. Leung, Alexander W. Raymond, 2022, The Astrophysical Journal Letters.

Event Horizon Telescope Results . I . the Shadow of the Supermassive Black Hole

Alexander W. Raymond, B. Benson, J. Henning, 2019 .

Resolving the Inner Parsec of the Blazar J1924–2914 with the Event Horizon Telescope

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal.

Parsec-Scale Images of Flat-Spectrum Radio Sources in Seyfert Galaxies

A. Roy, A. Wilson, C. Mundell, 1999, astro-ph/9908255.

The Ionization Fraction in the Obscuring “Torus” of an Active Galactic Nucleus

A. Roy, E. Colbert, K. Weaver, 1998, astro-ph/9805279.

The Bonn Correlation Center

A. Roy, W. Alef, J. Wagner, 2019 .

COMPACT RADIO CORES IN SEYFERT GALAXIES

R. Norris, J. Reynolds, A. Roy, 1994, astro-ph/9404080.

Jet–cloud collisions in the jet of the Seyfert galaxy NGC 3079

T. Krichbaum, A. Roy, E. Middelberg, 2007, astro-ph/0702481.

Water vapour at high redshift: Arecibo monitoring of the megamaser in MG J0414+0534

National Radio Astronomy Observatory, Bonn, Dwingeloo, 2011, 1103.4301.

VLBI observations of weak sources using fast frequency switching

H. Falcke, A. Roy, R. Walker, 2004, astro-ph/0412564.

Tracing the merger rate of the Universe with APERTIF and ASKAP

A. Roy, J. McKean, 2009, 0910.1136.

Solving the polarization problem in ALMA-VLBI observations

J. Conway, A. Roy, I. Martí-Vidal, 2015, 1504.06579.

Direct Imaging of a Toroidal Magnetic Field in the Inner Jet of NRAO 150

T. Krichbaum, A. Roy, I. Martí-Vidal, 2016 .

6.7 GHz methanol absorption toward the Seyfert 2 galaxy NGC 3079

K. Menten, A. Roy, C. Impellizzeri, 2008, 0805.1063.

Parsec-scale radio cores in spiral galaxies

J. Reynolds, A. Roy, E. Sadler, 1995 .

The molecular torus in NGC 1052

A. Roy, C. Henkel, V. Impellizzeri, 2009 .

Radio recombination lines from the starburst galaxy NGC 3256

W. Goss, A. Roy, K. Anantharamaiah, 2005, astro-ph/0502448.

Extreme Relic Radio Sources in Four Southern Clusters

H. Andernach, A. Roy, M. Ehle, 2002 .

Long term Arecibo monitoring of the water megamaser in MG J0414+0534

Bonn, Dwingeloo, H Germany, 2012, Proceedings of the International Astronomical Union.

A VLA survey of rich clusters of galaxies IV. an analysis of the results

H. Andernach, A. Roy, O. Slee, 1998 .

A VLA survey of rich clusters of galaxies, III. The weaker sources: maps and identifications

H. Andernach, A. Roy, O. Slee, 1996 .

Molecular tori in AGN: a search using excited states of OH

A. Roy, C. Impellizzeri, C. Henkel, 2005, astro-ph/0611850.

The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal Supplement Series.

Parsec-scale jets and tori in seyfert galaxies

H. Falcke, R. Norris, T. Krichbaum, 2000, astro-ph/0012159.

Pathway to the Square Kilometre Array - The German White Paper -

A. Merloni, G. Kauffmann, M. Zwaan, 2013, 1301.4124.

Verification of Radiative Transfer Schemes for the EHT

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020, The Astrophysical Journal.

UvA-DARE (Digital Academic SYMBA: An end-to-end VLBI synthetic data generation pipeline Simulating Event Horizon Telescope observations of M 87

S., H. Falcke, T. Lauer, 2020 .

First M87 Event Horizon Telescope Results. VII. Polarization of the Ring

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal Letters.

First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal Letters.

Motion and properties of nuclear radio components in Seyfert galaxies seen with VLBI

H. Falcke, R. Norris, T. Krichbaum, 2004, astro-ph/0402142.

MODELING SEVEN YEARS OF EVENT HORIZON TELESCOPE OBSERVATIONS WITH RADIATIVELY INEFFICIENT ACCRETION FLOW MODELS

Kazunori Akiyama, Alan L. Roy, Katherine Rosenfeld, 2016, 1602.07701.

A gravitationally lensed water maser in the early Universe

O. Wucknitz, A. Roy, J. McKean, 2008, Nature.

The Compact Radio Sources in the Nucleus of NGC 1068

Edward J. M. Colbert, James S. Ulvestad, Alan L. Roy, 1998 .

Subrelativistic Radio Jets and Parsec-Scale Absorption in Two Seyfert Galaxies

H. Falcke, T. Krichbaum, A. Roy, 1999, astro-ph/9903378.

The radio core of the ultraluminous infrared galaxy F00183−7111: watching the birth of a quasar

E. Lenc, R. Norris, A. Roy, 2011, 1107.3895.

SYMBA: An end-to-end VLBI synthetic data generation pipeline

F. Roelofs, M. Janssen, I. Natarajan, 2020, Astronomy & Astrophysics.

The Event Horizon Telescope Image of the Quasar NRAO 530

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, The Astrophysical Journal.

Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, Nature Astronomy.

Constraints on black-hole charges with the 2017 EHT observations of M87*

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, Physical Review D.

Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

F. G. Saturni, Daniel C. M. Palumbo, Chih-Wei L. Huang, 2021, 2104.06855.

Polarimetric Properties of Event Horizon Telescope Targets from ALMA

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal Letters.

The ALMA Phasing System: A Beamforming Capability for Ultra-high-resolution Science at (Sub)Millimeter Wavelengths

W. Alef, G. B. Crew, S. S. Doeleman, 2017, 1711.06770.

Calibration of mixed-polarization interferometric observations Tools for the reduction of interferometric data from elements with linear and circular polarization receivers

Alan Roy, John Conway, Ivan Marti-Vidal, 2016, 1601.04266.

Constraints on blackhole charges with the 2017 EHT observations of M 87 *

Chih-Wei L. Huang, H. Falcke, T. Lauer, 2021 .

Detection of the H92α recombination line from the starbursts in the Circinus galaxy and NGC 1808

W. Goss, A. Roy, K. Anantharamaiah, 2008, 0802.3175.

A search for gravitationally lensed water masers in dusty quasars and star-forming galaxies

Aifa, A. Roy, Mpifr, 2010, 1009.0290.

Real time cosmology - A direct measure of the expansion rate of the Universe

D. Champion, A. Roy, A. Lobanov, 2015, 1501.03822.

A Subparsec Radio Jet or Disk in NGC 4151

Edward J. M. Colbert, James S. Ulvestad, Alan L. Roy, 1998 .

Real time cosmology - A direct measure of the expansion rate of the University with the SKA

D. Champion, A. Roy, A. Lobanov, 2014 .

Chandra Observations of the Disruption of the Cool Core in A133

H. Andernach, A. Roy, C. Sarazin, 2002, astro-ph/0204188.

The 1.4 mm Core of Centaurus A: First VLBI Results with the South Pole Telescope

John E. Carlstrom, Daniel P. Marrone, Ryan Keisler, 2018, The Astrophysical Journal.

First M87 Event Horizon Telescope Results and the Role of ALMA

H. Falcke, D. James, L. Rezzolla, 2019, 1910.10193.

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

Daniel C. M. Palumbo, Marcos Emir Moreno Nolasco, Michael F. Wondrak, 2023, 2311.08680.

First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, 2311.08679.

First M87 Event Horizon Telescope Results. II. Array and Instrumentation

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019 .

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, The Astrophysical Journal.

The Variability of the Black Hole Image in M87 at the Dynamical Timescale

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal.

The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. II. Array and Instrumentation

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, 1906.11239.

First 230 GHz VLBI fringes on 3C 279 using the APEX Telescope

W. Alef, A. P. Marscher, J. Weintroub, 2015, 1506.03244.

UvA-DARE (Digital Academic Repository) Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

F. G. Saturni, Daniel C. M. Palumbo, Chih-Wei L. Huang, 2022 .

First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, The Astrophysical Journal Letters.

First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, The Astrophysical Journal Letters.

Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020 .

230 GHz VLBI OBSERVATIONS OF M87: EVENT‐HORIZON‐SCALE STRUCTURE DURING AN ENHANCED VERY‐HIGH‐ENERGY γ ?> ‐RAY STATE IN 2012

Alan E. E. Rogers, Roger Cappallo, Kazunori Akiyama, 2015, 1505.03545.

The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal Supplement Series.

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2021, The Astrophysical Journal Letters.

A Search for Pulsars around Sgr A* in the First Event Horizon Telescope Data Set

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2023, The Astrophysical Journal.

Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020, Physical Review Letters.

UvA-DARE (Digital Academic Repository) Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2020 .

Detection of the H92α recombination line from NGC 4945

W. Goss, T. Oosterloo, A. Roy, 2010, 1006.4564.

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration

Daniel C. M. Palumbo, Chih-Wei L. Huang, Alexander W. Raymond, 2019, The Astrophysical Journal.

First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

Daniel C. M. Palumbo, Michael F. Wondrak, Chih-Wei L. Huang, 2022, The Astrophysical Journal Letters.

Conversion from linear to circular polarization in FPGA in real time

G. Tuccari, Koyel Das, R. Keller, 2011, 1102.5274.

DBBC3 the new wide-band backend for VLBI

Gino Tuccari, Walter Alef, Rüdiger Haas, 2019, Proceedings of 14th European VLBI Network Symposium & Users Meeting — PoS(EVN2018).