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The Effects of Selection Biases on the Analysis of Localised Fast Radio Bursts
Jerome Seebeck, Vikram Ravi, Liam Connor +3
The objects that emit extragalatic fast radio bursts (FRBs) remain unidentified. Studies of the host galaxies and environments of accurately localised ( arcsec) FRBs pro…
Deep Radio Interferometric Imaging with POLISH: DSA-2000 and weak lensing
Liam Connor, Katherine L. Bouman, Vikram Ravi +1
Radio interferometry allows astronomers to probe small spatial scales that are often inaccessible with single-dish instruments. However, recovering the radio sky from an interferom…
The Unanticipated Phenomenology of the Blazar PKS~2131021: A Unique Super-Massive Black Hole Binary Candidate
S. O'Neill, S. Kiehlmann, A. C. S. Readhead +24
Most large galaxies host supermassive black holes in their nuclei and are subject to mergers, which can produce a supermassive black hole binary (SMBHB), and hence periodic signatu…
A transient radio source consistent with a merger-triggered core collapse supernova
Dillon Z. Dong, Gregg Hallinan, Ehud Nakar +10
A core-collapse supernova occurs when exothermic fusion ceases in the core of a massive star, typically due to exhaustion of nuclear fuel. Theory predicts that fusion could be inte…
The nascent milliquasar VT J154843.06+220812.6: tidal disruption event or extreme accretion-state change?
Jean J. Somalwar, Vikram Ravi, Dillon Dong +5
We present detailed multiwavelength follow up of a nuclear radio flare, VT J154843.06+220812.6, hereafter VT J1548. VT J1548 was selected as a mJy radio flare in 3 GHz ob…
Measuring interstellar turbulence in fast radio burst host galaxies
Dana Simard, Vikram Ravi
Turbulence is a vital part of the interstellar medium (ISM) of galaxies, contributing significantly to galaxy energy budgets and acting as a regulator of star formation. Despite th…
The observed impact of galaxy halo gas on fast radio bursts
Liam Connor, Vikram Ravi
Galaxies and groups of galaxies exist in dark-matter halos filled with diffuse gas. The diffuse gas represents up to 80\% of the mass in baryonic matter within the halos(1,2), but…
The host galaxy and persistent radio counterpart of FRB 20201124A
Vikram Ravi, Casey J. Law, Dongzi Li +7
The physical properties of fast radio burst (FRB) host galaxies provide important clues towards the nature of FRB sources. The 16 FRB hosts identified thus far span three orders of…
Multi-wavelength follow-up of FRB 180309
Kshitij Aggarwal, Sarah Burke-Spolaor, Nicolas Tejos +5
We report on the results of multi-wavelength follow-up observations with Gemini, VLA, and ATCA, to search for a host galaxy and any persistent radio emission associated with FRB 18…
FIRST J153350.8+272729: the radio afterglow of a decades-old tidal disruption event
Vikram Ravi, Hannah Dykaar, Jackson Codd +6
We present the discovery of the fading radio transient FIRST J153350.8+272729. The source had a maximum observed 5-GHz radio luminosity of erg s in 1986, bu…
Galactic Radio Explorer: an all-sky monitor for bright radio bursts
Liam Connor, Kiran A. Shila, Shrinivas R. Kulkarni +6
We present the Galactic Radio Explorer (GReX), an all-sky monitor to probe the brightest bursts in the radio sky. Building on the success of STARE2, we will search for fast radio b…