6 papers
A search for narrowband technosignatures from LTT 3780 with the Allen Telescope Array and the Karl G. Jansky Very Large Array
Chenoa D. Tremblay, Sofia Z. Sheikh, Vishal Gajjar +9
The LTT3780 system hosts two known exoplanets-LTT3780b, a rocky super-Earth, and LTT3780c, a temperate sub-Neptune-orbiting a nearby M dwarf on opposite sides of the radius valley.…
High Frequency Wideband Study of FRB 20240114A with the Allen Telescope Array
Param Joshi, Vishal Gajjar, Joel Earwicker +14
We present a high-frequency, wideband observing campaign of the hyperactive repeating fast radio burst FRB 20240114A with the Allen Telescope Array. Between 27 January and 29 Octob…
A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array
Sofia Z. Sheikh, Valeria Garcia Lopez, Isabel Gerrard +12
In 2025 July, the third-ever interstellar object, 3I/ATLAS, was discovered on its ingress into the Solar System. Similar to the NASA Voyager missions sent in 1977, science probes b…
A Narrowband Technosignature Search Toward the Hycean Candidate K2-18b Using the VLA and MeerKAT
C. D. Tremblay, S. Chaudhary, Megan G. Li +12
K2-18b, a sub-Neptune exoplanet located in the habitable zone of its host star, has emerged as an important target for atmospheric characterization and assessments of potential hab…
The Most Luminous Known Fast Blue Optical Transient AT 2024wpp: Unprecedented Evolution and Properties in the X-rays and Radio
A. J. Nayana, Raffaella Margutti, Eli Wiston +34
We present X-ray (0.3--79 keV) and radio (0.25--203 GHz) observations of the most luminous Fast Blue Optical Transient (LFBOT) AT\,2024wpp at , spanning 2--280 days after…
The First Radio-Bright Off-Nuclear TDE 2024tvd Reveals the Fastest-Evolving Double-Peaked Radio Emission
Itai Sfaradi, Raffaella Margutti, Ryan Chornock +34
We present the first multi-epoch broadband radio and millimeter monitoring of an off-nuclear TDE using the VLA, ALMA, ATA, AMI-LA, and the SMA. The off-nuclear TDE 2024tvd exhibits…