activity
20122023
most citedBlazar spectral variability as explained by a twisting inhomogeneous jet

199 citations · 856 across the 31 of their papers we have counts for

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Showing 2023Show all

6 papers · 1 filter

astro-ph.HE2023

SN 2022vqz: A Peculiar Subluminous Type Ia Supernova with Prominent Early Excess Emission

Gaobo Xi, Xiaofeng Wang, Gaici Li +22

We present extensive photometric and spectroscopic observations of the peculiar Type Ia supernova (SN Ia) 2022vqz. It shares many similarities with the SN 2002es-like SNe Ia, such…

astro-ph.GA2023

The Stellar Abundances and Galactic Evolution Survey (SAGES) -- -- I. General Description and the First Data Release (DR1)

Zhou Fan, Gang Zhao, Wei Wang +35

The Stellar Abundances and Galactic Evolution Survey (SAGES) of the northern sky is a specifically-designed multi-band photometric survey aiming to provide reliable stellar paramet…

astro-ph.HE2023

A Superluminous Supernova Lightened by Collisions with Pulsational Pair-instability Shells

Weili Lin, Xiaofeng Wang, Lin Yan +23

Superluminous supernovae are among the most energetic stellar explosions in the Universe, but their energy sources remain an open question. Here we present long-term observations o…

astro-ph.SR2023★ 11 cited

The Early Light Curve of a Type Ia Supernova 2021hpr in NGC 3147: Progenitor Constraints with the Companion Interaction Model

Gu Lim, Myungshin Im, Gregory S. H. Paek +19

The progenitor system of Type Ia supernovae (SNe Ia) is expected to be a close binary system of a carbon/oxygen white dwarf (WD) and a non-degenerate star or another WD. Here, we p…

astro-ph.HE2023★ 7 cited

Unusual Hard X-ray Flares Caught in NICER Monitoring of the Binary Supermassive Black Hole Candidate AT2019cuk/Tick Tock/SDSS J1430+2303

Megan Masterson, Erin Kara, Dheeraj R. Pasham +17

The nuclear transient AT2019cuk/Tick Tock/SDSS J1430+2303 has been suggested to harbor a supermassive black hole (SMBH) binary near coalescence. We report results from high-cadence…

astro-ph.HE2023★ 24 cited

The optical behaviour of BL Lacertae at its maximum brightness levels: a blend of geometry and energetics

C. M. Raiteri, M. Villata, S. G. Jorstad +13

In 2021 BL Lacertae underwent an extraordinary activity phase, which was intensively followed by the Whole Earth Blazar Telescope (WEBT) Collaboration. We present the WEBT optical…