Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Nianyi Chen"'
Autor:
Ekaterine Dadiani, Tiziana Di Matteo, Nianyi Chen, Patrick Lachance, Yu-Ching Chen, Yue Shen, Rupert Croft, Yueying Ni, Simeon Bird
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
We study dual AGN host galaxy morphologies at $z=2$ using the ASTRID simulation, selecting black hole (BH) pairs with small separation ($\Delta r10^7M_\odot$), and luminosity ($L_{\text{bol,12}}>10^{43}\rm{erg/s}$). We kinematically decompose (using
Externí odkaz:
https://doaj.org/article/92d03bc9b7d64a7d8e6b8b82e84b057e
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
The elusive massive black hole (MBH) seeds stand to be revealed by the Laser Space Antenna Interferometer through mergers. As an aftermath of galaxy mergers, MBH coalescence is a vastly multi-scale process connected to galaxy formation. We introduce
Externí odkaz:
https://doaj.org/article/cc0cfa42eeca4e4f8e578266623b2a3f
Autor:
Adi Foord, Nico Cappelluti, Tingting Liu, Marta Volonteri, Melanie Habouzit, Fabio Pacucci, Stefano Marchesi, Nianyi Chen, Tiziana Di Matteo, Labani Mallick, Michael Koss
Publikováno v:
Universe, Vol 10, Iss 6, p 237 (2024)
We present an analysis showcasing how the Advanced X-ray Imaging Satellite (AXIS), a proposed NASA Probe-class mission, will significantly increase our understanding of supermassive black holes undergoing mergers—from kpc to sub-pc scales. In parti
Externí odkaz:
https://doaj.org/article/e7822ad2a3d94274af8f13c232796548
Autor:
Anavi Uppal, Charlotte Ward, Suvi Gezari, Priyamvada Natarajan, Nianyi Chen, Patrick LaChance, Tiziana Di Matteo
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 286 (2024)
Supermassive black holes (SMBHs) can be ejected from their galactic centers due to gravitational wave recoil or the slingshot mechanism following a galaxy merger. If an ejected SMBH retains its inner accretion disk, it may be visible as an off-nuclea
Externí odkaz:
https://doaj.org/article/f725e25d870f4767a9866e968410ce0a
Autor:
Brandon Sandoval, Adi Foord, Steven W. Allen, Marta Volonteri, Nianyi Chen, Tiziana Di Matteo, Aaron Stemo, Kayhan Gültekin, Melanie Habouzit, Clara Puerto-Sánchez, Edmund Hodges-Kluck, Yohan Dubois
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 121 (2024)
We present an analysis searching for dual active galactic nuclei (AGN) among 62 high-redshift (2.5 < z < 3.5) X-ray sources selected from the X-UDS, AEGIS-XD, CDF-S, and COSMOS-Legacy Chandra surveys. We aim to quantify the frequency of dual AGN in t
Externí odkaz:
https://doaj.org/article/9fbfb65065594d448b98511d06fcfa41
Autor:
Nianyi Chen, Patrick LaChance, Yueying Ni, Tiziana Di Matteo, Rupert Croft, Priyamvada Natarajan, Simeon Bird
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 1, p L2 (2023)
We look for simulated star-forming linear features such as the one recently discovered by van Dokkum et al. in the cosmological hydrodynamical simulation ASTRID . Among the runaway black holes in ASTRID , none are able to produce clear star-forming w
Externí odkaz:
https://doaj.org/article/60641c9787894fdea8d05bd566bec1b4
Autor:
Yueying Ni, Shy Genel, Daniel Anglés-Alcázar, Francisco Villaescusa-Navarro, Yongseok Jo, Simeon Bird, Tiziana Di Matteo, Rupert Croft, Nianyi Chen, Natalí S. M. de Santi, Matthew Gebhardt, Helen Shao, Shivam Pandey, Lars Hernquist, Romeel Dave
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 136 (2023)
We present CAMELS-ASTRID, the third suite of hydrodynamical simulations in the Cosmology and Astrophysics with MachinE Learning (CAMELS) project, along with new simulation sets that extend the model parameter space based on the previous frameworks of
Externí odkaz:
https://doaj.org/article/04449ab06ba345048ee2d12819457422
Autor:
Yue Shen, Hsiang-Chih Hwang, Masamune Oguri, Nianyi Chen, Tiziana Di Matteo, Yueying Ni, Simeon Bird, Nadia Zakamska, Xin Liu, Yu-Ching Chen, Kaitlin M. Kratter
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 38 (2023)
The statistics of galactic-scale quasar pairs can elucidate our understanding of the dynamical evolution of supermassive black hole (SMBH) pairs, the duty cycles of quasar activity in mergers, or even the nature of dark matter, but they have been cha
Externí odkaz:
https://doaj.org/article/aac23531167243828a08120ba758992b
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 2, p 138 (2023)
Using the novel semi-numerical code for reionization AMBER, we model the patchy kinetic Sunyaev–Zel’dovich (kSZ) effect by directly specifying the reionization history with the redshift midpoint z _mid , duration Δ _z , and asymmetry A _z . We f
Externí odkaz:
https://doaj.org/article/87888a2c9a4d4f43ac81f190f0fb642c
Autor:
Nianyi Chen, Tiziana Di Matteo, Yueying Ni, Michael Tremmel, Colin DeGraf, Yue Shen, A Miguel Holgado, Simeon Bird, Rupert Croft, Yu Feng
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:1895-1913
We examine the dual (both BHs active) and offset (one BH active) AGN population (comprising $\sim$ 2000 pairs at $0.5\,\text{kpc}\lesssim\Delta r
Comment: 17 Pages, 18 Figures; comments welcome!
Comment: 17 Pages, 18 Figures; comments welcome!
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbed48172125ceba6b2aa8a10b96702b
https://doi.org/10.1093/mnras/stad834
https://doi.org/10.1093/mnras/stad834