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- National Astronomical Observatory of JapanJP175 papers
- The University of TokyoJP134 papers
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- Institute of Astronomy and Astrophysics, Academia SinicaTW99 papers
- Korea Astronomy and Space Science InstituteKR73 papers
- Tokyo Institute of TechnologyJP65 papers
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- Max Planck Institute for Radio AstronomyDE61 papers
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31 papers · 1 filter
Observational Evidence to Support a Dense Ambient Medium Shaping the Jet in 3C 84
Jongho Park, Motoki Kino, Hiroshi Nagai +4
Highly collimated relativistic jets are a defining feature of certain active galactic nuclei (AGN), yet their formation mechanism remains elusive. Previous observations and theoret…
Exact solution for rotating black holes in parity-violating gravity
Hiroaki W. H. Tahara, Kazufumi Takahashi, Masato Minamitsuji +1
It has recently been pointed out that one can construct invertible conformal transformations with a parity-violating conformal factor, which can be employed to generate a novel cla…
12CO and 13CO observation of the low-metallicity dwarf galaxy DDO 154
Shinya Komugi, Miku Inaba, Tetsuo Shindou
The conversion factor from carbon monoxide (CO) intensity to molecular gas mass is a source of large uncertainty in understanding gas and its relation to star formation in galaxies…
First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization
The Event Horizon Telescope Collaboration
Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy. EHT images in linear polariza…
Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes
Freek Roelofs, Michael D. Johnson, Andrew Chael +4
The Event Horizon Telescope (EHT) is a millimeter very long baseline interferometry (VLBI) array that has imaged the apparent shadows of the supermassive black holes M87* and Sagit…
First Sagittarius A* Event Horizon Telescope Results. VI: Testing the Black Hole Metric
The Event Horizon Telescope Collaboration
Astrophysical black holes are expected to be described by the Kerr metric. This is the only stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies…