How DREAMS are made: Emulating Satellite Galaxy and Subhalo Populations with Diffusion Models and Point Clouds

Posted by dbos MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Tri Nguyen, Francisco Villaescusa-Navarro, Siddharth Mishra-Sharma, Carolina Cuesta-Lazaro, Paul Torrey | Summary: The connection between galaxies and their host dark matter (DM) halos is critical to our understanding of cosmology, galaxy formation, and DM physics. To maximize the return of upcoming cosmological surveys, we need an accurate […]


Continue.. How DREAMS are made: Emulating Satellite Galaxy and Subhalo Populations with Diffusion Models and Point Clouds

How DREAMS are made: Emulating Satellite Galaxy and Subhalo Populations with Diffusion Models and Point Clouds

Posted by dbos MIT

Kavli Affiliate: Lina Necib | First 5 Authors: Tri Nguyen, Francisco Villaescusa-Navarro, Siddharth Mishra-Sharma, Carolina Cuesta-Lazaro, Paul Torrey | Summary: The connection between galaxies and their host dark matter (DM) halos is critical to our understanding of cosmology, galaxy formation, and DM physics. To maximize the return of upcoming cosmological surveys, we need an accurate […]


Continue.. How DREAMS are made: Emulating Satellite Galaxy and Subhalo Populations with Diffusion Models and Point Clouds

Superfluid-tight cryogenic receiver with continuous sub-Kelvin cooling for EXCLAIM

Posted by dbos Chicago

Kavli Affiliate: Jeffrey J. McMahon | First 5 Authors: Sumit Dahal, Peter A. R. Ade, Christopher J. Anderson, Alyssa Barlis, Emily M. Barrentine | Summary: The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a balloon-borne telescope designed to survey star formation over cosmological time scales using intensity mapping in the 420 – 540 GHz […]


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Reply to Comment on “A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp”

Posted by dbos Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Yang Huang, Qikang Feng, Tigran Khachaturyants, Huawei Zhang, Jifeng Liu | Summary: In this reply, we present a comprehensive analysis addressing the concerns raised by Dehnen et al. (2024) regarding our recent measurement of the disk warp precession using the `motion-picture’ method (Huang et al. 2024). We […]


Continue.. Reply to Comment on “A slightly oblate dark matter halo revealed by a retrograde precessing Galactic disk warp”

Impact of survey spatial variability on galaxy redshift distributions and the cosmological $3times2$-point statistics for the Rubin Legacy Survey of Space and Time (LSST)

Posted by dbos Stanford

Kavli Affiliate: Eric Charles | First 5 Authors: Qianjun Hang, Benjamin Joachimi, Eric Charles, John Franklin Crenshaw, Patricia Larsen | Summary: We investigate the impact of spatial survey non-uniformity on the galaxy redshift distributions for forthcoming data releases of the Rubin Observatory Legacy Survey of Space and Time (LSST). Specifically, we construct a mock photometry […]


Continue.. Impact of survey spatial variability on galaxy redshift distributions and the cosmological $3times2$-point statistics for the Rubin Legacy Survey of Space and Time (LSST)

Impact of survey spatial variability on galaxy redshift distributions and the cosmological $3times2$-point statistics for the Rubin Legacy Survey of Space and Time (LSST)

Posted by dbos Stanford

Kavli Affiliate: Eric Charles | First 5 Authors: Qianjun Hang, Benjamin Joachimi, Eric Charles, John Franklin Crenshaw, Patricia Larsen | Summary: We investigate the impact of spatial survey non-uniformity on the galaxy redshift distributions for forthcoming data releases of the Rubin Observatory Legacy Survey of Space and Time (LSST). Specifically, we construct a mock photometry […]


Continue.. Impact of survey spatial variability on galaxy redshift distributions and the cosmological $3times2$-point statistics for the Rubin Legacy Survey of Space and Time (LSST)

MusicMamba: A Dual-Feature Modeling Approach for Generating Chinese Traditional Music with Modal Precision

Posted by dbos Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jiatao Chen, Tianming Xie, Xing Tang, Jing Wang, Wenjing Dong | Summary: In recent years, deep learning has significantly advanced the MIDI domain, solidifying music generation as a key application of artificial intelligence. However, existing research primarily focuses on Western music and encounters challenges in generating melodies […]


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Diffraction Gratings for X-ray Spectroscopy

Posted by dbos MIT

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: Ralf K. Heilmann, David P. Huenemoerder, Jake A. McCoy, Randall L. McEntaffer, | Summary: X-ray diffraction gratings play an essential role in high-resolution spectroscopy of astrophysical phenomena. We present some scientific highlights from the X-ray grating spectrometers (XGS) on board of the Chandra and XMM/Newton missions, […]


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Diffraction Gratings for X-ray Spectroscopy

Posted by dbos MIT

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, David P. Huenemoerder, Jake A. McCoy, Randall L. McEntaffer, | Summary: X-ray diffraction gratings play an essential role in high-resolution spectroscopy of astrophysical phenomena. We present some scientific highlights from the X-ray grating spectrometers (XGS) on board of the Chandra and XMM/Newton missions, […]


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Development of the 220/270 GHz Receiver of BICEP Array

Posted by dbos Stanford

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: The BICEP/Keck Collaboration, :, Y. Nakato, P. A. R. Ade, Z. Ahmed | Summary: Measurements of B-mode polarization in the CMB sourced from primordial gravitational waves would provide information on the energy scale of inflation and its potential form. To achieve these goals, one must carefully characterize […]


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