137 citations · 548 across the 33 of their papers we have counts for
33 papers
The XMM-Newton Line Emission Analysis Program (X-LEAP) III: Earth's Magnetospheric X-ray Emission Revealed by 22-Year XMM-Newton Observations
Zeyang Pan, Zhijie Qu, Yuqi Gong +5
The magnetosphere, protecting the Earth from intense solar activity, is also shaped by the solar wind, while its structure is still uncertain in observation. In this study, we map…
An XMM-Newton View of the ANdromeda Galaxy as Explored in a Legacy Survey (New-ANGELS) II: Luminosity Function of X-ray Sources
Rui Huang, Jiang-Tao Li, Wei Cui +5
As part of the New-ANGELS program, we systematically investigate the X-ray luminosity functions (XLFs) of 4506 X-ray sources projected within a radius of 2.5 deg centering on M31.…
Supervised Extraction of the Thermal SunyaevZel'dovich Effect with a Three-Dimensional Convolutional Neural Network
Cameron T. Pratt, Zhijie Qu, Joel N. Bregman
The thermal SunyaevZel'dovich (SZ) effect offers a unique probe of the hot and diffuse universe that could help close the missing baryon problem. Traditional extractions of the…
Modeling the cool gas clumps in the circumgalactic medium
Hang Yang, Zhijie Qu, Joel N. Bregman +1
A major challenge in CGM studies is determining the three-dimensional (3D) properties from the observed projected observations. Here, we decompose the 3D gas density and spatial di…
A SN Ia Near a Globular Cluster in the Early-Type Galaxy NGC 5353
Joel N. Bregman, Oleg Y. Gnedin, Patrick O. Seitzer +1
No progenitor of a Type Ia supernova is known, but in old population early-type galaxies, one may find SN Ia associated with globular clusters, yielding a population age and metall…
eDIG-CHANGES II: Project Design and Initial Results on NGC 3556
Jiang-Tao Li, Li-Yuan Lu, Zhijie Qu +19
The extraplanar diffuse ionized gas (eDIG) represents ionized gases traced by optical/UV lines beyond the stellar extent of galaxies. We herein introduce a novel multi-slit narrow-…
The XMM-Newton Line Emission Analysis Program (X-LEAP) II: The Multi-scale Temperature Structures in the Milky Way Hot Gas
Zhijie Qu, Zeyang Pan, Joel N. Bregman +1
This paper presents the multi-scale temperature structures in the Milky Way (MW) hot gas, as part of the XMM-Newton Line Emission Analysis Program (X-LEAP), surveying the O VII, O…
The XMM-Newton Line Emission Analysis Program (X-LEAP) I: Emission Line Survey of O VII, O VIII, and Fe L-Shell Transitions
Zeyang Pan, Zhijie Qu, Joel N. Bregman +1
The XMM-Newton Line Emission Analysis Program (X-LEAP) is designed to study diffuse X-ray emissions from the Milky Way (MW) hot gas, as well as emissions from the foreground solar…
Optimizing NILC Extractions of the Thermal Sunyaev-Zeldovich Effect with Deep Learning
Cameron T. Pratt, Zhijie Qu, Joel N. Bregman +1
All-sky maps of the thermal Sunyaev-Zel'dovich effect (SZ) tend to suffer from systematic features arising from the component separation techniques used to extract the signal. In t…
An ensemble study of turbulence in extended QSO nebulae at --1
Mandy C. Chen, Hsiao-Wen Chen, Michael Rauch +10
Turbulent motions in the circumgalactic medium (CGM) play a critical role in regulating the evolution of galaxies, yet their detailed characterization remains elusive. Using two-di…
The Cosmic Ultraviolet Baryon Survey: Empirical Characterization of Turbulence in the Cool Circumgalactic Medium
Hsiao-Wen Chen, Zhijie Qu, Michael Rauch +11
This paper reports the first measurement of the relationship between turbulent velocity and cloud size in the diffuse circumgalactic medium (CGM) in typical galaxy halos at redshif…
Scientific Objectives of the Hot Universe Baryon Surveyor (HUBS) Mission
Joel Bregman, Renyue Cen, Yang Chen +51
The Hot Universe Baryon Surveyor (HUBS) is a proposed space-based X-ray telescope for detecting X-ray emissions from the hot gas content in our universe. With its unprecedented spa…
The Cosmic Ultraviolet Baryon Survey (CUBS) VI: Connecting Physical Properties of the Cool Circumgalactic Medium to Galaxies at
Zhijie Qu, Hsiao-Wen Chen, Gwen C. Rudie +12
This paper presents a new sample of 19 unique galaxies and galaxy groups at from the CUBS program, which is designated as the CUBSz1 sample. In this CUBSz1 sample, nine…
An XMM-Newton View of the ANdromeda Galaxy as Explored in a Legacy Survey (New-ANGELS) I: the X-ray Source Catalogue
Rui Huang, Jiang-Tao Li, Wei Cui +6
We introduce the New-ANGELS program, an XMM-Newton survey of area around M 31, which aims to study the X-ray populations in M 31 disk and the X-ray emitting hot…
eDIG-CHANGES I: Extended Hα Emission from the Extraplanar Diffuse Ionized Gas (eDIG) around CHANG-ES Galaxies
Li-Yuan Lu, Jiang-Tao Li, Carlos J. Vargas +14
The extraplanar diffuse ionized gas (eDIG) represents the cool/warm ionized gas reservoir around galaxies. We present a spatial analysis of H images of 22 nearby edge-on spiral…
The Cosmic Ultraviolet Baryon Survey (CUBS) V: On the Thermodynamic Properties of the Cool Circumgalactic Medium at
Zhijie Qu, Hsiao-Wen Chen, Gwen C. Rudie +11
This paper presents a systematic study of the photoionization and thermodynamic properties of the cool circumgalactic medium (CGM) as traced by rest-frame ultraviolet absorption li…
Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements
Mandy C. Chen, Hsiao-Wen Chen, Michael Rauch +9
We present the first empirical constraints on the turbulent velocity field of the diffuse circumgalactic medium around four luminous QSOs at --1.1. Spatially exten…
The Solar-Cycle Temporal Variation of the Solar Wind Charge Exchange X-ray Lines
Zhijie Qu, Dimitra Koutroumpa, Joel N. Bregman +2
Solar wind charge exchange (SWCX) is the primary contamination to soft X-ray emission lines from the Milky Way (MW) hot gas. We report a solar-cycle ( yr) temporal vari…
Absorption Line Search Through Three Local Group Dwarf Galaxy Halos
Zhijie Qu, Joel N. Bregman
Dwarf galaxies are missing nearly all of their baryons and metals from the stellar disk, presumed to be in a bound halo or expelled beyond the virial radius. The virial temperature…
The Warm Gas in the MW: the Kinematical Model of C IV and its Connection with Si IV
Zhijie Qu, Ryan Lindley, Joel N. Bregman
We compose a 265-sight line MW C IV line shape sample using the HST/COS archive, which is complementary to the existing Si IV samples. C IV has a higher ionization potential ($47 -…
Hot Extended Galaxy Halos Around Local L* Galaxies From Sunyaev-Zeldovich Measurements
Joel N. Bregman, Edmund Hodges-Kluck, Zhijie Qu +3
Most of the baryons in L* galaxies are unaccounted for and are predicted to lie in hot gaseous halos (T ~ 3E6 K) that may extend beyond R200. A hot gaseous halo will produce a ther…
Probing the He II re-Ionization ERa via Absorbing C IV Historical Yield (HIERACHY) I: A Strong Outflow from a z~4.7 Quasar
Xiaodi Yu, Jiang-Tao Li, Zhijie Qu +7
Outflows from super-massive black holes (SMBHs) play an important role in the co-evolution of themselves, their host galaxies, and the larger scale environments. Such outflows are…
The Resolved Sunyaev--Zel'dovich Profiles of Nearby Galaxy Groups
C. T. Pratt, Z. Qu, J. N. Bregman
Much of the baryons in galaxy groups are thought to have been driven out to large distances () by feedback, but there are few constraining observations of this ex…
An X-ray and SZ bright diffuse source toward M31: a Local Hot Bridge
Zhijie Qu, Rui Huang, Joel N. Bregman +1
We report a large-scale () X-ray and Sunyaev-Zeldovich (SZ)-bright diffuse enhancement toward M31, which might be a Local Hot Bridge connecting the Milky Way (MW…