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Implication of Galaxy-scale Negative Feedback by One of the Most Powerful Multiphase Outflows in a Hyperluminous Infrared Galaxy at Intermediate Redshift
DOI: 10.3847/1538-4357/ad93ab Bibcode: 2025ApJ...979...32C

Imanishi, Masatoshi; Iono, Daisuke; Saito, Toshiki +12 more

Powerful galactic outflows driven by active galactic nuclei (AGNs) are commonly considered as one of the main mechanisms to regulate star formation in massive galaxies. Ultra- and hyperluminous IR galaxies (U/HyLIRGs) are thought to represent a transition phase of galaxies from a rapidly growing period to a quiescent status as gas is swept out by …

2025 The Astrophysical Journal
AKARI 0
Prediction of Star Formation Rates Using an Artificial Neural Network
DOI: 10.3847/1538-4357/ada366 Bibcode: 2025ApJ...980..177A

Woo, Jong-Hak; Ayubinia, Ashraf; Kim, Changseok +2 more

In this study we develop an artificial neural network to estimate the infrared (IR) luminosity and star formation rates (SFR) of galaxies. Our network is trained using "true" IR luminosity values derived from modeling the IR spectral energy distributions of FIR-detected galaxies. We explore five different sets of input features, each incorporating…

2025 The Astrophysical Journal
AKARI 0
ASKAP Observations of the Radio Shell in the Composite Supernova Remnant G310.6-1.6
DOI: 10.3847/1538-4357/adad66 Bibcode: 2025ApJ...980..162J

Hopkins, Andrew M.; Kothes, Roland; Lazarević, Sanja +12 more

We report the observations of the radio shell of the supernova remnant (SNR) G310.6–1.6 at 943 MHz from the Evolutionary Map of the Universe (EMU) and the Polarization Sky Survey of the Universe's Magnetism (POSSUM) surveys by using the Australian Square Kilometre Array Pathfinder (ASKAP). We detect polarized emission from the central pulsar wind …

2025 The Astrophysical Journal
AKARI 0
ALMA Observations of Peculiar Embedded Icy Objects
DOI: 10.3847/1538-4357/ada4ad Bibcode: 2025ApJ...981...49S

Onaka, Takashi; Sakon, Itsuki; Shimonishi, Takashi

We report the results of molecular line observations with the Atacama Large Millimeter/submillimeter Array (ALMA) toward two peculiar icy objects, which were discovered serendipitously by infrared spectroscopic survey of the Galactic plane with the AKARI satellite. Previous infrared observations have reported that both objects show deep ice and du…

2025 The Astrophysical Journal
AKARI 0