output
20092026
most citedJADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

361 citations

Showing 2023 · astro-ph.HEShow all

12 papers · 2 filters

astro-ph.HE2023★ 26 cited

Minutes-duration Optical Flares with Supernova Luminosities

Anna Y. Q. Ho, Daniel A. Perley, Ping Chen +74

In recent years, certain luminous extragalactic optical transients have been observed to last only a few days. Their short observed duration implies a different powering mechanism…

astro-ph.HE2023★ 109 cited

Precessing jet nozzle connecting to a spinning black hole in M87

Yuzhu Cui, Kazuhiro Hada, Tomohisa Kawashima +76

The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner…

astro-ph.HE2023★ 25 cited

Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova

Lindsey A. Kwok, Matthew R. Siebert, Joel Johansson +78

We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar "03fg-like" (or "super-Chandrasekhar") Type Ia supernova (SN Ia), in the nebular phase at 338…

astro-ph.HE2023★ 8 cited

Evidence for a gamma-ray molecular target in the enigmatic PeVatron candidate LHAASO J2108+5157

Eduardo de la Fuente, Ivan Toledano-Juárez, Kazumasa Kawata +11

To determine the nature of the PeVatron's emission (hadronic or leptonic), it is essential to characterize the physical parameters of the environment from where it originates. We u…

astro-ph.HE2023★ 6 cited

Coronal height constraint in IRAS 13224-3809 and 1H 0707-495 by the random forest regressor

N. Mankatwit, P. Chainakun, W. Luangtip +1

We develop a random forest regressor (RFR) machine learning model to trace the coronal evolution in two highly variable active galactic nuclei (AGNs) IRAS 13224-3809 and 1H 0707-49…

astro-ph.HE2023★ 5 cited

The Large Deficit of HMXB Emission from Luminous Infrared Galaxies: the Case of the Circumnuclear Starburst Ring in NGC 7552

Lacey West, Kristen Garofali, Bret D. Lehmer +5

Luminous infrared galaxies (LIRGs), the most extreme star-forming galaxies in the nearby (D30 Mpc) Universe, show a notable X-ray emission deficiency (up to a factor of 10…

astro-ph.HE2023★ 13 cited

GRB 201015A and the nature of low-luminosity soft gamma-ray bursts

M. Patel, B. P. Gompertz, P. T. O'Brien +20

GRB 201015A is a peculiarly low luminosity, spectrally soft gamma-ray burst (GRB), with s (time interval of detection of 90\% of photons from the GRB), a…

astro-ph.HE2023★ 7 cited

Revealing the intrinsic X-ray reverberation lags in IRAS 13224-3809 through the Granger causality test

P. Chainakun, N. Nakhonthong, W. Luangtip +1

The Granger causality is an econometric test for determining whether one time series is useful for forecasting another one with a certain Granger lag. Here, the light curves in the…

astro-ph.HE2023★ 65 cited

The High-Altitude Water Cherenkov (HAWC) Observatory in México: The Primary Detector

A. U. Abeysekara, A. Albert, R. Alfaro +140

The High-Altitude Water Cherenkov (HAWC) observatory is a second-generation continuously operated, wide field-of-view, TeV gamma-ray observatory. The HAWC observatory and its analy…

astro-ph.HE2023★ 26 cited

Spectral analysis of a parsec-scale jet in M87: Observational constraint on the magnetic field strengths in the jet

Hyunwook Ro, Motoki Kino, Bong Won Sohn +49

Because of its proximity and the large size of its black hole, M87 is one of the best targets for studying the launching mechanism of active galactic nucleus jets. Currently, magne…

astro-ph.HE2023★ 7 cited

Detailed Analysis of the TeV γ-Ray Sources 3HWC J1928+178, 3HWC J1930+188, and the New Source HAWC J1932+192

A. Albert, R. Alfaro, C. Alvarez +91

The latest High Altitude Water Cherenkov (HAWC) point-like source catalog up to 56 TeV reported the detection of two sources in the region of the Galactic plane at galactic longitu…

astro-ph.HE2023★ 27 cited

Collapsars as Sites of r-process Nucleosynthesis: Systematic Near-Infrared Follow-up of Type Ic-BL Supernovae

Shreya Anand, Jennifer Barnes, Sheng Yang +41

One of the open questions following the discovery of GW170817 is whether neutron star mergers are the only astrophysical sites capable of producing -process elements. Simulation…