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New Evidence for a Flux-independent Spectral Index of Sgr A* in the Near-infrared
Hadrien Paugnat, Tuan Do, Abhimat K. Gautam, Gregory D. Martinez, Andrea M. Ghez, Shoko Sakai, Grant C. Weldon, Matthew W. Hosek, Zoë Haggard, Kelly Kosmo O’Neil, Eric E. Becklin, Gunther Witzel, Jessica R. Lu and Keith Matthews The Astrophysical Journal 977(2) 228 (2024) https://doi.org/10.3847/1538-4357/ad8ac6
High-resolution, Mid-infrared Color Temperature Mapping of the Central 10″ of the Galaxy
Cuc K. Dinh, Anna Ciurlo, Mark R. Morris, Rainer Schödel, Andrea Ghez and Tuan Do The Astronomical Journal 167(1) 41 (2024) https://doi.org/10.3847/1538-3881/ad10a5
Parameter study for hot spot trajectories around SgrA*
First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring
The Event Horizon Telescope Collaboration, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Balokovic, Bidisha Bandyopadhyay, John Barrett, Michi Bauböck, Bradford A. Benson, Dan Bintley, Lindy Blackburn, Raymond Blundell, Katherine L. Bouman, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, et al. The Astrophysical Journal Letters 964(2) L25 (2024) https://doi.org/10.3847/2041-8213/ad2df0
New-generation maximum entropy method: a Lagrangian-based algorithm for dynamic reconstruction of interferometric data
Polarimetry and astrometry of NIR flares as event horizon scale, dynamical probes for the mass of Sgr A*
R. Abuter, N. Aimar, P. Amaro Seoane, A. Amorim, M. Bauböck, J. P. Berger, H. Bonnet, G. Bourdarot, W. Brandner, V. Cardoso, Y. Clénet, R. Davies, P. T. de Zeeuw, J. Dexter, A. Drescher, A. Eckart, F. Eisenhauer, H. Feuchtgruber, G. Finger, N. M. Förster Schreiber, A. Foschi, P. Garcia, F. Gao, Z. Gelles, E. Gendron, et al. Astronomy & Astrophysics 677 L10 (2023) https://doi.org/10.1051/0004-6361/202347416
A ‘coronal-mass-ejection’ model for flares in Sagittarius A*
Polarized signatures of adiabatically expanding hotspots in Sgr A*’s accretion flow
Joseph M Michail, Farhad Yusef-Zadeh, Mark Wardle and Devaky Kunneriath Monthly Notices of the Royal Astronomical Society 520(2) 2644 (2023) https://doi.org/10.1093/mnras/stad291
Multiwavelength Variability of Sagittarius A* in 2019 July
H. Boyce, D. Haggard, G. Witzel, S. von Fellenberg, S. P. Willner, E. E. Becklin, T. Do, A. Eckart, G. G. Fazio, M. A. Gurwell, J. L. Hora, S. Markoff, M. R. Morris, J. Neilsen, M. Nowak, H. A. Smith and S. Zhang The Astrophysical Journal 931(1) 7 (2022) https://doi.org/10.3847/1538-4357/ac6104
First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric
Event Horizon Telescope Collaboration, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Michi Bauböck, Bradford A. Benson, Dan Bintley, Lindy Blackburn, Raymond Blundell, Katherine L. Bouman, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, Silke Britzen, et al. The Astrophysical Journal Letters 930(2) L17 (2022) https://doi.org/10.3847/2041-8213/ac6756
Sgr A* X-ray flares from non-thermal particle acceleration in a magnetically arrested disc
Nicolas Scepi, Jason Dexter and Mitchell C Begelman Monthly Notices of the Royal Astronomical Society 511(3) 3536 (2022) https://doi.org/10.1093/mnras/stac337
High-resolution imaging of a black hole shadow with Millimetron orbit around lagrange point l2
S F Likhachev, A G Rudnitskiy, M A Shchurov, et al. Monthly Notices of the Royal Astronomical Society 511(1) 668 (2022) https://doi.org/10.1093/mnras/stac079
The Orbit and Nature of the Semidetached Stellar Companion of the Sgr A* Supermassive Black Hole
The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole
Ramesh Narayan, Daniel C. M. Palumbo, Michael D. Johnson, Zachary Gelles, Elizabeth Himwich, Dominic O. Chang, Angelo Ricarte, Jason Dexter, Charles F. Gammie, Andrew A. Chael, Kazunori Akiyama, Antxon Alberdi, Walter Alef, Juan Carlos Algaba, Richard Anantua, Keiichi Asada, Rebecca Azulay, Anne-Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Bradford A. Benson, Dan Bintley, Lindy Blackburn, Raymond Blundell, et al. The Astrophysical Journal 912(1) 35 (2021) https://doi.org/10.3847/1538-4357/abf117
Multiwavelength Observations of Sgr A*. I. 2019 July 18
The origin of hotspots around Sgr A*: orbital or pattern motion?
Tatsuya Matsumoto, Chi-Ho Chan and Tsvi Piran Monthly Notices of the Royal Astronomical Society 497(2) 2385 (2020) https://doi.org/10.1093/mnras/staa2095
Dynamically important magnetic fields near the event horizon of Sgr A*
A parameter survey of Sgr A* radiative models from GRMHD simulations with self-consistent electron heating
J Dexter, A Jiménez-Rosales, S M Ressler, et al. Monthly Notices of the Royal Astronomical Society 494(3) 4168 (2020) https://doi.org/10.1093/mnras/staa922
Spacetime Tomography Using the Event Horizon Telescope
Paul Tiede, Hung-Yi Pu, Avery E. Broderick, Roman Gold, Mansour Karami and Jorge A. Preciado-López The Astrophysical Journal 892(2) 132 (2020) https://doi.org/10.3847/1538-4357/ab744c
Evidence for a jet and outflow from Sgr A*: a continuum and spectral line study
Sgr A* near-infrared flares from reconnection events in a magnetically arrested disc
J Dexter, A Tchekhovskoy, A Jiménez-Rosales, et al. Monthly Notices of the Royal Astronomical Society 497(4) 4999 (2020) https://doi.org/10.1093/mnras/staa2288
Effect of Electromagnetic Interaction on Galactic Center Flare Components
Arman Tursunov, Michal Zajaček, Andreas Eckart, Martin Kološ, Silke Britzen, Zdeněk Stuchlík, Bozena Czerny and Vladimír Karas The Astrophysical Journal 897(1) 99 (2020) https://doi.org/10.3847/1538-4357/ab980e
Impact of intrinsic polarization of Sgr A* historical flares on (polarization) properties of their X-ray echoes
Ildar Khabibullin, Eugene Churazov and Rashid Sunyaev Monthly Notices of the Royal Astronomical Society 498(3) 4379 (2020) https://doi.org/10.1093/mnras/staa2619
Fifty Years of Energy Extraction from Rotating Black Hole: Revisiting Magnetic Penrose Process
A possible model for the long-term flares of Sgr A*
Toru Okuda, Chandra B Singh, Santabrata Das, Ramiz Aktar, Anuj Nandi and Elisabete M de Gouveia Dal Pino Publications of the Astronomical Society of Japan 71(3) (2019) https://doi.org/10.1093/pasj/psz021
Simultaneous X-Ray and Infrared Observations of Sagittarius A*'s Variability
H. Boyce, D. Haggard, G. Witzel, S. P. Willner, J. Neilsen, J. L. Hora, S. Markoff, G. Ponti, F. Baganoff, E. E. Becklin, G. G. Fazio, P. Lowrance, M. R. Morris and H. A. Smith The Astrophysical Journal 871(2) 161 (2019) https://doi.org/10.3847/1538-4357/aaf71f
The central light-year of the Milky Way: How stars and gas live in a relativistic environment of a super-massive black hole
Multiwavelength Light Curves of Two Remarkable Sagittarius A* Flares
G. G. Fazio, J. L. Hora, G. Witzel, S. P. Willner, M. L. N. Ashby, F. Baganoff, E. Becklin, S. Carey, D. Haggard, C. Gammie, A. Ghez, M. A. Gurwell, J. Ingalls, D. Marrone, M. R. Morris and H. A. Smith The Astrophysical Journal 864(1) 58 (2018) https://doi.org/10.3847/1538-4357/aad4a2
On the charge of the Galactic centre black hole
Michal Zajaček, Arman Tursunov, Andreas Eckart and Silke Britzen Monthly Notices of the Royal Astronomical Society 480(4) 4408 (2018) https://doi.org/10.1093/mnras/sty2182
The black hole at the Galactic Center: Observations and models
Variability Timescale and Spectral Index of Sgr A* in the Near Infrared: Approximate Bayesian Computation Analysis of the Variability of the Closest Supermassive Black Hole
G. Witzel, G. Martinez, J. Hora, S. P. Willner, M. R. Morris, C. Gammie, E. E. Becklin, M. L. N. Ashby, F. Baganoff, S. Carey, T. Do, G. G. Fazio, A. Ghez, W. J. Glaccum, D. Haggard, R. Herrero-Illana, J. Ingalls, R. Narayan and H. A. Smith The Astrophysical Journal 863(1) 15 (2018) https://doi.org/10.3847/1538-4357/aace62
Bright X-ray flares from Sgr A*
G. D. Karssen, M. Bursa, A. Eckart, et al. Monthly Notices of the Royal Astronomical Society 472(4) 4422 (2017) https://doi.org/10.1093/mnras/stx2312
Dynamical Imaging with Interferometry
Michael D. Johnson, Katherine L. Bouman, Lindy Blackburn, Andrew A. Chael, Julian Rosen, Hotaka Shiokawa, Freek Roelofs, Kazunori Akiyama, Vincent L. Fish and Sheperd S. Doeleman The Astrophysical Journal 850(2) 172 (2017) https://doi.org/10.3847/1538-4357/aa97dd
A magnetohydrodynamic model for multiwavelength flares from Sagittarius A⋆ (I): model and the near-infrared and X-ray flares
Ya-Ping Li, Feng Yuan and Q. Daniel Wang Monthly Notices of the Royal Astronomical Society 468(3) 2552 (2017) https://doi.org/10.1093/mnras/stx655
The Milky Way’s Supermassive Black Hole: How Good a Case Is It?
Probing the Magnetic Field Structure in
on Black Hole Horizon Scales with Polarized Radiative Transfer Simulations
Roman Gold, Jonathan C. McKinney, Michael D. Johnson and Sheperd S. Doeleman The Astrophysical Journal 837(2) 180 (2017) https://doi.org/10.3847/1538-4357/aa6193
Sixteen years of X-ray monitoring of Sagittarius A*: Evidence for a decay of the faint flaring rate from 2013 August, 13 months before a rise in the bright flaring rate
FAR INFRARED VARIABILITY OF SAGITTARIUS A*: 25.5 hr OF MONITORING WITH HERSCHEL*
Jordan M. Stone, D. P. Marrone, C. D. Dowell, B. Schulz, C. O. Heinke and F. Yusef-Zadeh The Astrophysical Journal 825(1) 32 (2016) https://doi.org/10.3847/0004-637X/825/1/32
Statistical and theoretical studies of flares from Sagittarius A⋆
Resolved magnetic-field structure and variability near the event horizon of Sagittarius A*
Michael D. Johnson, Vincent L. Fish, Sheperd S. Doeleman, Daniel P. Marrone, Richard L. Plambeck, John F. C. Wardle, Kazunori Akiyama, Keiichi Asada, Christopher Beaudoin, Lindy Blackburn, Ray Blundell, Geoffrey C. Bower, Christiaan Brinkerink, Avery E. Broderick, Roger Cappallo, Andrew A. Chael, Geoffrey B. Crew, Jason Dexter, Matt Dexter, Robert Freund, Per Friberg, Roman Gold, Mark A. Gurwell, Paul T. P. Ho, Mareki Honma, et al. Science 350(6265) 1242 (2015) https://doi.org/10.1126/science.aac7087
Equations of Motion in Relativistic Gravity
A. Eckart, S. Britzen, M. Valencia-S., et al. Fundamental Theories of Physics, Equations of Motion in Relativistic Gravity 179 759 (2015) https://doi.org/10.1007/978-3-319-18335-0_22
Rubrik
S. Britzen, A. Eckart, C. Lämmerzahl, J. Roland, M. Brockamp, E. Hackmann, J. Kunz, A. Macias, R. Malchow, N. Sabha and B. Shahzamanian Astronomische Nachrichten 336(5) 471 (2015) https://doi.org/10.1002/asna.201512178
SPITZER/IRAC OBSERVATIONS OF THE VARIABILITY OF Sgr A* AND THE OBJECT G2 AT 4.5 μm
Multi-Epoch VERA Observations of Sagittarius A*. I. Images and Structural Variability
Kazunori Akiyama, Rohta Takahashi, Mareki Honma, Tomoaki Oyama and Hideyuki Kobayashi Publications of the Astronomical Society of Japan 65(4) (2013) https://doi.org/10.1093/pasj/65.4.91
Oscillation Phenomena in the Disk around the Massive Black Hole Sagittarius A*
Makoto Miyoshi, Zhi-Qiang Shen, Tomoaki Oyama, Rohta Takahashi and Yoshiaki Kato Publications of the Astronomical Society of Japan 63(5) 1093 (2011) https://doi.org/10.1093/pasj/63.5.1093
The near-infrared spectral index of Sagittarius A* derived fromKs- andH-band flare statistics