Zobrazeno 1 - 10
of 247
pro vyhledávání: '"Frank C van den Bosch"'
Publikováno v:
The Astrophysical Journal, Vol 976, Iss 2, p 197 (2024)
The abundance of satellite galaxies is set by the hierarchical assembly of their host halo. We leverage this to investigate the low-mass end ( M _H < 10 ^11 M _⊙ ) of the stellar-to-halo mass relation (SHMR), which is key to constraining theories o
Externí odkaz:
https://doaj.org/article/433aee74cdb9451f94c306aea482af91
Autor:
Aritra Ghosh, C. Megan Urry, Meredith C. Powell, Rhythm Shimakawa, Frank C. van den Bosch, Daisuke Nagai, Kaustav Mitra, Andrew J. Connolly
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 142 (2024)
The relationship between galaxy size and environment has remained enigmatic, with over a decade of conflicting results. We present one of the first comprehensive studies of the variation of galaxy radius with environment beyond the local Universe and
Externí odkaz:
https://doaj.org/article/7234d5ce00f5473d8da9f96d18b70a89
Autor:
Pieter van Dokkum, Imad Pasha, Maria Luisa Buzzo, Stephanie LaMassa, Zili Shen, Michael A. Keim, Roberto Abraham, Charlie Conroy, Shany Danieli, Kaustav Mitra, Daisuke Nagai, Priyamvada Natarajan, Aaron J. Romanowsky, Grant Tremblay, C. Megan Urry, Frank C. van den Bosch
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 2, p L50 (2023)
The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it. Here we report the serendipitous discovery of an extremely narrow linear fe
Externí odkaz:
https://doaj.org/article/87adffeaee424ef597adbe75441bedd8
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 65 (2023)
We develop a linear perturbative formalism to compute the response of an inhomogeneous stellar disk embedded in a nonresponsive dark matter (DM) halo to various perturbations like bars, spiral arms, and encounters with satellite galaxies. Without sel
Externí odkaz:
https://doaj.org/article/14d249f6cbf24cf2a29b700c190286b1
Autor:
Dhruba Dutta Chowdhury, Frank C. van den Bosch, Pieter van Dokkum, Victor H. Robles, Hsi-Yu Schive, Tzihong Chiueh
Publikováno v:
The Astrophysical Journal, Vol 949, Iss 2, p 68 (2023)
Fuzzy dark matter (FDM), consisting of ultralight bosons, is an intriguing alternative to cold dark matter. Numerical simulations solving the Schrödinger–Poisson (SP) equation, which governs FDM dynamics, show that FDM halos consist of a central s
Externí odkaz:
https://doaj.org/article/548cdf8570ab4bd094dcf8e7c78d8c15
Autor:
Kuan Wang, Yao-Yuan Mao, Andrew R Zentner, Hong Guo, Johannes U Lange, Frank C van den Bosch, Lorena Mezini
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 516:4003-4024
We present observational constraints on the galaxy-halo connection, focusing particularly on galaxy assembly bias, from a novel combination of counts-in-cylinders statistics, $P(N_{\rm{CIC}})$, with the standard measurements of the projected two-poin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ef809ac7a9ce8deb98235103b0523b
https://doi.org/10.1093/mnras/stac2465
https://doi.org/10.1093/mnras/stac2465
Autor:
Johannes U Lange, Andrew P Hearin, Alexie Leauthaud, Frank C van den Bosch, Enia Xhakaj, Hong Guo, Risa H Wechsler, Joseph DeRose
We present a novel simulation-based cosmological analysis of galaxy-galaxy lensing and galaxy redshift-space clustering. Compared to analysis methods based on perturbation theory, our simulation-based approach allows us to probe a much wider range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c0687b009e0b05bb6a7047b613ac068
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 510:2724-2739
Previous studies have shown that dark matter deficient galaxies (DMDG) such as NGC1052-DF2 (hereafter DF2) can result from tidal stripping. An important question, though, is whether such a stripping scenario can explain DF2's large specific frequency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::166b519715067b3f95f5b9df8a04f6f0
https://doi.org/10.1093/mnras/stab3658
https://doi.org/10.1093/mnras/stab3658
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 509:2624-2636
The demographics of dark matter substructure depend sensitively on the nature of dark matter. Optimally leveraging this probe requires accurate theoretical predictions regarding the abundance of subhaloes. These predictions are hampered by artificial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a964f57c07ef06b07996c418bd21d5bb
https://doi.org/10.1093/mnras/stab3130
https://doi.org/10.1093/mnras/stab3130
Galactic disks are highly responsive systems that often undergo external perturbations and subsequent collisionless equilibration, predominantly via phase-mixing. We use linear perturbation theory to study the response of infinite isothermal slab ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4145ebdd36a7b75c682c7456aecaa19
http://arxiv.org/abs/2208.05038
http://arxiv.org/abs/2208.05038