Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Aklant K. Bhowmick, Laura Blecha, Paul Torrey, Luke Zoltan Kelley, Rainer Weinberger | Summary: The first "seeds" of supermassive black holes (BH) can range from $sim10^2-10^6~M_{odot}$. However, the lowest mass seeds ($lesssim10^3 M_{odot}$) are inaccessible to most cosmological simulations due to resolution limitations. We present our new […]


Continue.. Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog

Posted by dbos MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Michelle L. Hill, Stephen R. Kane, Paul A. Dalba, Mason MacDougall, Tara Fetherolf | Summary: The Transiting Exoplanet Survey Satellite (TESS) continues to dramatically increase the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable to radial velocity (RV) and atmospheric follow-up […]


Continue.. The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog

Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Posted by dbos MIT

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni, Takashi J. Moriya, Steve Schulze | Summary: Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility (ZTF). Here, we present […]


Continue.. Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Posted by dbos MIT

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni, Takashi J. Moriya, Steve Schulze | Summary: Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility (ZTF). Here, we present […]


Continue.. Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Near-IR clumps and their properties in high-z galaxies with JWST/NIRCam

Posted by dbos Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Boris S. Kalita, John D. Silverman, Emanuele Daddi, Wilfried Mercier, Luis C. Ho | Summary: Resolved stellar morphology of z>1 galaxies was inaccessible before JWST. This limitation, due to the impact of dust on rest-frame UV light, had withheld major observational conclusions required to understand the […]


Continue.. Near-IR clumps and their properties in high-z galaxies with JWST/NIRCam

Near-IR clumps and their properties in high-z galaxies with JWST/NIRCam

Posted by dbos Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Boris S. Kalita, John D. Silverman, Emanuele Daddi, Wilfried Mercier, Luis C. Ho | Summary: Resolved stellar morphology of $z>1$ galaxies was inaccessible before JWST. This limitation, due to the impact of dust on rest-frame UV light, had withheld major observational conclusions required to understand the […]


Continue.. Near-IR clumps and their properties in high-z galaxies with JWST/NIRCam

Integration of cognitive tasks into artificial general intelligence test for large models

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Youzhi Qu, Chen Wei, Penghui Du, Wenxin Che, Chi Zhang | Summary: During the evolution of large models, performance evaluation is necessarily performed on the intermediate models to assess their capabilities, and on the well-trained model to ensure safety before practical application. However, current model evaluations mainly […]


Continue.. Integration of cognitive tasks into artificial general intelligence test for large models

Integration of cognitive tasks into artificial general intelligence test for large models

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Youzhi Qu, Chen Wei, Penghui Du, Wenxin Che, Chi Zhang | Summary: During the evolution of large models, performance evaluation is necessarily performed on the intermediate models to assess their capabilities, and on the well-trained model to ensure safety before practical application. However, current model evaluations mainly […]


Continue.. Integration of cognitive tasks into artificial general intelligence test for large models

Integration of cognitive tasks into artificial general intelligence test for large models

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Youzhi Qu, Chen Wei, Penghui Du, Wenxin Che, Chi Zhang | Summary: During the evolution of large models, performance evaluation is necessarily performed to assess their capabilities and ensure safety before practical application. However, current model evaluations mainly rely on specific tasks and datasets, lacking a united […]


Continue.. Integration of cognitive tasks into artificial general intelligence test for large models

First detection of polarization in X-rays for PSR B0540-69 and its nebula

Posted by dbos MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Fei Xie, Josephine Wong, Fabio La Monaca, Roger W. Romani, Jeremy Heyl | Summary: We report on X-ray polarization measurements of the extra-galactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud (LMC), using a ~850 ks Imaging X-ray Polarimetry Explorer […]


Continue.. First detection of polarization in X-rays for PSR B0540-69 and its nebula