Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ruancun Li"'
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 152 (2024)
The inclination angle of substructures in active galaxies gives insights into physical components from scales of the vicinity of the central black hole to the entire host galaxy. We use the self-consistent reflection spectral model RELXILL to measure
Externí odkaz:
https://doaj.org/article/d0a355aa1d0b4ebaaa22e7cb074c5e93
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 2, p 104 (2024)
We analyze 347 galaxies at redshift 4 < z < 9.5 using JWST observations from the Cosmic Evolution Early Release Science (CEERS) program by simultaneously fitting a two-dimensional parametric model to the seven-filter Near Infrared Camera images to me
Externí odkaz:
https://doaj.org/article/2abdd4a1af424c7d896091fcf5e689be
Autor:
Taiki Kawamuro, Claudio Ricci, Satoshi Yamada, Hirofumi Noda, Ruancun Li, Matthew J. Temple, Alessia Tortosa
Publikováno v:
The Astrophysical Journal, Vol 960, Iss 1, p 15 (2023)
The nearby dwarf galaxy POX 52 at z = 0.021 hosts an active galactic nucleus (AGN) with a black hole (BH) mass of M _BH ∼ 10 ^5–6 M _⊙ and an Eddington ratio of ∼0.1–1. This object provides the rare opportunity to study both AGN and host-ga
Externí odkaz:
https://doaj.org/article/a129e417b5b1445aabce48f2ffb5e5bc
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 267, Iss 1, p 17 (2023)
The broadband spectral energy distribution of a galaxy encodes valuable information on its stellar mass, star formation rate (SFR), dust content, and possible fractional energy contribution from nonstellar sources. We present a comprehensive catalog
Externí odkaz:
https://doaj.org/article/7f288b93bcef41a6883cf90b33d65aa1
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 50 (2023)
Dual active galactic nuclei (AGNs), which are the manifestation of two actively accreting supermassive black holes (SMBHs) hosted by a pair of merging galaxies, are a unique laboratory for studying the physics of SMBH feeding and feedback during an i
Externí odkaz:
https://doaj.org/article/ca4a54c684374ec59c9409f991779205
Autor:
Alessia Tortosa, Claudio Ricci, Luis C Ho, Francesco Tombesi, Pu Du, Kohei Inayoshi, Jian-Min Wang, Jinyi Shangguan, Ruancun Li
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:6267-6283
We present the first systematic broad-band X-ray study of super-Eddington accretion onto SMBHs with simultaneous {\it NuSTAR} and {\it XMM-Newton} or {\it Swift}/XRT observations of a sample of 8 super-Eddington accreting AGN with Eddington ratio $1<
Dual active galactic nuclei (AGN), which are the manifestation of two actively accreting supermassive black holes (SMBHs) hosted by a pair of merging galaxies, are a unique laboratory for studying the physics of SMBH feeding and feedback during an in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f81b74cff4229705f2f4d87c7fc8bf8
http://arxiv.org/abs/2212.06399
http://arxiv.org/abs/2212.06399
Autor:
Luis C. Ho, Ruancun Li, Kohei Inayoshi, Jinyi Shangguan, Pu Du, Claudio Ricci, Jian-Min Wang, Francesco Tombesi, A. Tortosa
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 509:3599-3615
The physical properties of the accretion flow and of the X-ray emitting plasma, in supermassive black holes accreting at extreme Eddington rates, are still very unclear. Here we present the analysis of simultaneous XMM–Newton and NuSTAR observation
Autor:
Ruancun Li, Luis C. Ho, Claudio Ricci, Benny Trakhtenbrot, Iair Arcavi, Erin Kara, Daichi Hiramatsu
Publikováno v:
The Astrophysical Journal. 933:70
Changing-look active galactic nuclei (AGNs) present an important laboratory to understand the origin and physical properties of the broad-line region (BLR). We investigate follow-up optical spectroscopy spanning $\sim 500$ days after the outburst of
Publikováno v:
The Astrophysical Journal. 931:77
We present a detailed X-ray spectral analysis of the narrow-line Seyfert 1 galaxy I Zwicky 1, for which a sequence of X-ray flares were detected during a long, simultaneous observation acquired with XMM-Newton and NuSTAR. We determine the key paramet