Jun Yang
VLBI representerar Very Long Baseline Interferometry. Med den nya tekniken kan astronomer syntetisera den kosmiska radiovåg som observeras samtidigt av flera teleskop över stora avstånd, och på så sätt producera bilder för avlägsna radiokällor, t.ex. det svarta hålets skugga i M87, med en upplösning på upp till ~10 mikrobågsekunder. Dr Jun Yang är senior forskningsingenjör vid Onsala rymdobservatorium. Han är ansvarig för driften av astronomiska VLBI-observationer med 20-m och 25-m teleskopen. Han är också en sällan skådad expert på det komplexa VLBI-systemet (observationer, felsökning, kalibrering, korrelation, datareduktion, etc.). Dr Jun Yang är också senior radioastronom. Han har ganska breda vetenskapsintressen. Han har undersökt olika astrofysiska radiotransienter: Fast Radio Bursts (FRBs), Gamma-Ray Bursts (GRBs), X-Ray Binaries (XRBs), novaer och Tidal Disruption Events (TDEs). Dessutom är han ganska intresserad av att studera radiostrålar som drivs av massiva och supermassiva svarta hål i aktiva galaktiska kärnor.
Visar 67 publikationer
A link between repeating and non-repeating fast radio bursts through their energy distributions
A Centiparsec-scale Compact Radio Core in the Nearby Galaxy M60
VLBI detection of the AE Aqr twin, LAMOST J024048.51+195226.9
Milliarcsecond localization of the hyperactive repeating FRB 20220912A
Mildly relativistic motion in the radio-quiet quasar PG 1351+640
Toward Microarcsecond Astrometry for the Innermost Wobbling Jet of the BL Lacertae Object OJ 287
Filming the evolution of symbiotic novae with VLBI: The 2021 explosion of RS Oph
VLBI observations of a sample of Palomar-Green quasars - I. Parsec-scale morphology
VLBI astrometry on the white dwarf pulsar AR Scorpii
The innermost jet in the hidden ultra-luminous X-ray source Cygnus X-3
A long-lived compact jet in the black hole X-ray binary candidate AT2019wey
A repeating fast radio burst source in a globular cluster
Structural and spectral properties of Galactic plane variable radio sources
Burst timescales and luminosities as links between young pulsars and fast radio bursts
Milliarcsecond Localization of the Repeating FRB 20201124A
Multiwavelength View of the Close-by GRB 190829A Sheds Light on Gamma-Ray Burst Physics
Is there a sub-parsec-scale jet base in the nearby dwarf galaxy NGC 4395?
The X-shaped Radio Galaxy J0725+5835 is Associated with an AGN Pair
Radio interferometric imaging of RS Oph bipolar ejecta for the 2021 nova outburst
A parsec-scale faint jet in the nearby changing-look Seyfert galaxy Mrk 590
The jet collimation profile at high resolution in BL Lacertae
Detection of two bright radio bursts from magnetar SGR 1935 + 2154
A compact core-jet structure in the changing-look Seyfert NGC 2617
The nearby extreme accretion and feedback system PDS 456: finding a complex radio-emitting nucleus
X-ray spectral evolution in an X-ray changing-look AGN NGC 1365 with variable column density
Evolving parsec-scale radio structure in the most distant blazar known
Compact Bright Radio-loud AGNs. III. A Large VLBA Survey at 43 GHz
A two-sided but significantly beamed jet in the supercritical accretion quasar IRAS F11119+3257
Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates
Compact radio emission indicates a structured jet was produced by a binary neutron star merger
The jet of fsrq pks 1229-02 and its misidentification as a γ-ray agn
Extended Catalog of Winged or X-shaped Radio Sources from the FIRST Survey
Probing the gravitational redshift with an Earth-orbiting satellite
Imaging and Variability Studies of CTA 102 during the 2016 January γ-ray Flare
Revealing two radio-active galactic nuclei extremely near PSR J0437−4715
RadioAstron gravitational redshift experiment: Status update
The Most Compact Bright Radio-loud AGNs. II. VLBA Observations of 10 Sources at 43 and 86 GHz
Constraining the radio jet proper motion of the high-redshift quasar J2134− 0419 at z= 4.3
Single-dish and VLBI observations of Cygnus X-3 during the 2016 giant flare episode
Multi-messenger Observations of a Binary Neutron Star Merger
NGC 5252: a pair of radio-emitting active galactic nuclei?
VLBI observations of four radio quasars at z > 4: blazars or not?
VLBI With GNSS-signals on an Intercontinental Baseline – A progress report
Discovery of five low-luminosity active galactic nuclei at the centre of the Perseus cluster
VLBA 24 and 43 GHz observations of massive binary black hole candidate PKS 1155 + 251
No apparent superluminal motion in the first-known jetted tidal disruption event Swift J1644+5734
FRB 150418: clues to its nature from European VLBI Network and e-MERLIN observations
Swift J1644+5734: the EVN view
The SFXC software correlator for very long baseline interferometry: algorithms and implementation
VLBI detection of the internal shocks in nova V959 Mon
Binary orbits as the driver of gamma-ray emission and mass ejection in classical novae
A comprehensive radio view of the extremely bright gamma-ray burst 130427A
The Wettzell-Onsala G130128 experiment – VLBI-observations of a GLONASS satellite
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