Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Blakesley Burkhart"'
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 2, p L26 (2024)
We investigate the contribution of host galaxies to the overall dispersion measures (DMs) for fast radio bursts (FRBs) using the Feedback in Realistic Environments (FIRE-2) cosmological zoom-in simulation suite. We calculate DMs from every star parti
Externí odkaz:
https://doaj.org/article/91d7273753214fd1a515aa8235863963
Autor:
Shyam H. Menon, Lachlan Lancaster, Blakesley Burkhart, Rachel S. Somerville, Avishai Dekel, Mark R. Krumholz
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L28 (2024)
The observed rest-UV luminosity function at cosmic dawn ( z ∼ 8–14) measured by JWST revealed an excess of UV-luminous galaxies relative to many prelaunch theoretical predictions. A high star formation efficiency (SFE) and a top-heavy initial mas
Externí odkaz:
https://doaj.org/article/de99a4d9442b46ad92e36ac9a6ff720e
Autor:
Claire E. Williams, William Lake, Smadar Naoz, Blakesley Burkhart, Tommaso Treu, Federico Marinacci, Yurina Nakazato, Mark Vogelsberger, Naoki Yoshida, Gen Chiaki, Yeou S. Chiou, Avi Chen
Publikováno v:
The Astrophysical Journal Letters, Vol 960, Iss 2, p L16 (2024)
The James Webb Space Telescope (JWST) is capable of probing extremely early eras of our Universe, when the supersonic relative motions between dark matter and baryonic overdensities modulate structure formation ( z ≳ 10). We study low-mass galaxy f
Externí odkaz:
https://doaj.org/article/14f7008a9718412d9de3d7d5244bd182
Autor:
Blakesley Burkhart, Shmuel Bialy, Daniel Seifried, Stefanie Walch, Erika Hamden, Thomas J. Haworth, Keri Hoadley, Shuo Kong, Madisen Johnson, Sarah Jeffreson, Mark R. Krumholz, Min-Young Lee, Amiel Sternberg, Neal J. Turner
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 269 (2024)
Molecular hydrogen (H _2 ) formation and dissociation are key processes that drive the gas life cycle in galaxies. Using the SImulating the LifeCycle of Molecular Clouds zoom-in simulation suite, we explore the utility of future observations of H _2
Externí odkaz:
https://doaj.org/article/5e489eb99da049be9e950f2c2426d64d
Autor:
William Lake, Claire E. Williams, Smadar Naoz, Federico Marinacci, Blakesley Burkhart, Mark Vogelsberger, Naoki Yoshida, Gen Chiaki, Avi Chen, Yeou S. Chiou
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 115 (2024)
At high redshifts ( z ≳ 12), the relative velocity between baryons and dark matter (the so-called streaming velocity) significantly affects star formation in low-mass objects. Streaming substantially reduces the abundance of low-mass gas objects wh
Externí odkaz:
https://doaj.org/article/9cb75c05b3024192ba78298012b908ef
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 2 (2024)
Advancing our understanding of astrophysical turbulence is bottlenecked by the limited resolution of numerical simulations that may not fully sample scales in the inertial range. Machine-learning (ML) techniques have demonstrated promise in upscaling
Externí odkaz:
https://doaj.org/article/9daa6f0deed84a6fb8c8778da6087aa6
Autor:
Sultan Hassan, Christopher C. Lovell, Piero Madau, Marc Huertas-Company, Rachel S. Somerville, Blakesley Burkhart, Keri L. Dixon, Robert Feldmann, Tjitske K. Starkenburg, John F. Wu, Christian Kragh Jespersen, Joseph D. Gelfand, Ankita Bera
Publikováno v:
The Astrophysical Journal Letters, Vol 958, Iss 1, p L3 (2023)
An unprecedented array of new observational capabilities are starting to yield key constraints on models of the epoch of first light in the Universe. In this Letter we discuss the implications of the UV radiation background at cosmic dawn inferred by
Externí odkaz:
https://doaj.org/article/356c4203e7b64c46a0ec2d5c329cb998
Autor:
William Lake, Smadar Naoz, Federico Marinacci, Blakesley Burkhart, Mark Vogelsberger, Claire E. Williams, Yeou S. Chiou, Gen Chiaki, Yurina Nakazato, Naoki Yoshida
Publikováno v:
The Astrophysical Journal Letters, Vol 956, Iss 1, p L7 (2023)
The formation mechanism of globular clusters (GCs) has long been debated by astronomers. It was recently proposed that supersonically induced gas objects (SIGOs)–which formed in the early Universe due to the supersonic relative motion of baryons an
Externí odkaz:
https://doaj.org/article/09316db268c6426bb812e1047817bd2b
Autor:
Megan Taylor Tillman, Blakesley Burkhart, Stephanie Tonnesen, Simeon Bird, Greg L. Bryan, Daniel Anglés-Alcázar, Romeel Davé, Shy Genel
Publikováno v:
The Astrophysical Journal Letters, Vol 945, Iss 1, p L17 (2023)
Active galactic nuclei (AGNs) feedback models are generally calibrated to reproduce galaxy observables such as the stellar mass function and the bimodality in galaxy colors. We use variations of the AGN feedback implementations in the IllustrisTNG (T
Externí odkaz:
https://doaj.org/article/2551a921976f42c2ab34e7eed3f23b2d
Autor:
Megan Taylor Tillman, Blakesley Burkhart, Stephanie Tonnesen, Simeon Bird, Greg L. Bryan, Daniel Anglés-Alcázar, Sultan Hassan, Rachel S. Somerville, Romeel Davé, Federico Marinacci, Lars Hernquist, Mark Vogelsberger
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 228 (2023)
We explore the role of galactic feedback on the low-redshift Ly α (Ly α ) forest ( z ≲ 2) statistics and its potential to alter the thermal state of the intergalactic medium. Using the Cosmology and Astrophysics with Machine Learning Simulations
Externí odkaz:
https://doaj.org/article/566a9eaa71ae444c83cb692b7bca2f5a