Challenges for ΛCDM: An update

L Perivolaropoulos, F Skara - New Astronomy Reviews, 2022 - Elsevier
A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

The final season reimagined: 30 tidal disruption events from the ZTF-I Survey

E Hammerstein, S van Velzen, S Gezari… - The Astrophysical …, 2022 - iopscience.iop.org
Tidal disruption events (TDEs) offer a unique way to study dormant black holes. While the
number of observed TDEs has grown thanks to the emergence of wide-field surveys in the …

The Zwicky Transient Facility Bright Transient Survey. II. A public statistical sample for exploring supernova demographics

DA Perley, C Fremling, J Sollerman… - The Astrophysical …, 2020 - iopscience.iop.org
We present a public catalog of transients from the Zwicky Transient Facility (ZTF) Bright
Transient Survey, a magnitude-limited (m< 19 mag in either the g or r filter) survey for …

Candidate electromagnetic counterpart to the binary black hole merger gravitational-wave event s190521g

MJ Graham, KES Ford, B McKernan, NP Ross, D Stern… - Physical review …, 2020 - APS
We report the first plausible optical electromagnetic counterpart to a (candidate) binary black
hole merger. Detected by the Zwicky Transient Facility, the electromagnetic flare is …

Candidate tidal disruption event AT2019fdr coincident with a high-energy neutrino

S Reusch, R Stein, M Kowalski, S Van Velzen… - Physical review …, 2022 - APS
The origins of the high-energy cosmic neutrino flux remain largely unknown. Recently, one
high-energy neutrino was associated with a tidal disruption event (TDE). Here we present …

Seventeen tidal disruption events from the first half of ZTF survey observations: entering a new era of population studies

S Van Velzen, S Gezari, E Hammerstein… - The Astrophysical …, 2021 - iopscience.iop.org
While tidal disruption events (TDEs) have long been heralded as laboratories for the study of
quiescent black holes, the small number of known TDEs and uncertainties in their emission …

Design and operation of the ATLAS transient science server

KW Smith, SJ Smartt, DR Young, JL Tonry… - Publications of the …, 2020 - iopscience.iop.org
Abstract The Asteroid Terrestrial impact Last Alert System (ATLAS) system consists of two
0.5 m Schmidt telescopes with cameras covering 29 square degrees at plate scale of 1.86 …

From discovery to the first month of the type II supernova 2023ixf: high and variable mass loss in the final year before explosion

D Hiramatsu, D Tsuna, E Berger, K Itagaki… - The Astrophysical …, 2023 - iopscience.iop.org
We present the discovery of the Type II supernova SN 2023ixf in M101 and follow-up
photometric and spectroscopic observations, respectively, in the first month and week of its …

A very luminous jet from the disruption of a star by a massive black hole

I Andreoni, MW Coughlin, DA Perley, Y Yao, W Lu… - Nature, 2022 - nature.com
Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when
supermassive black holes at the centres of galaxies violently disrupt a star that passes too …

Gaia Data Release 3-Summary of the variability processing and analysis

L Eyer, M Audard, B Holl, L Rimoldini… - Astronomy & …, 2023 - aanda.org
Context. Gaia has been in operations since 2014, and two full data releases (DR) have been
delivered so far: DR1 in 2016 and DR2 in 2018. The third Gaia data release expands from …