162 citations · 738 across the 33 of their papers we have counts for
34 papers
The Intermediate-Mass Black Hole Reverberation Mapping Project: Scientific Overview and Sample Characteristics
Hengxiao Guo, Jiancheng Wu, Wenwen Zuo +38
Recent discoveries with the James Webb Space Telescope of massive black holes at high redshift have highlighted fundamental questions about black hole seed formation and the coevol…
Tracing black hole and galaxy growth across environments since cosmic noon
Emma Jane Weller, Priyamvada Natarajan, Colin J. Burke +1
The distribution of systems in the black hole (BH) mass-stellar mass () plane encodes both the integrated growth of galaxies and their central black holes, a…
The black hole occupation fraction as a fossil record of seeding, dynamics, and galaxy assembly
Emma Jane Weller, Priyamvada Natarajan, Colin J. Burke
The black hole occupation fraction (BHOF) is a powerful but intrinsically layered diagnostic of massive black hole (BH) seeding and subsequent galaxy assembly. We measure the total…
Variability as a new discovery channel for Intermediate-Mass Black Holes in the Time Domain Era
Colin J. Burke, Priyamvada Natarajan
Between the groundbreaking detections of stellar-mass black holes by LIGO/Virgo/KAGRA and JWST's revelation of a surprisingly abundant population of supermassive black holes, one c…
Too Quiet for Comfort: Local Little Red Dots Lack Variability over Decades
Colin J. Burke, Zachary Stone, Yue Shen +1
Several local () metal-poor dwarf AGNs have remarkably similar properties to those of high-redshift Little Red Dots (LRDs), and are recently proposed to be local ana…
Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds (DAVOS): Properties of Variability-Selected AGNs in the Dark Energy Survey Deep Fields
Yichen Liu, Colin J. Burke, Diego Miura +4
We study the black hole mass host galaxy stellar mass relation, , for a sample of 706 and optically-variable active galac…
DeepDISC-photoz: Deep Learning-Based Photometric Redshift Estimation for Rubin LSST
Grant Merz, Xin Liu, Samuel Schmidt +11
Photometric redshifts will be a key data product for the Rubin Observatory Legacy Survey of Space and Time (LSST) as well as for future ground and space-based surveys. The need for…
The redshift evolution of the scaling relation: new insights from cosmological simulations and semi-analytic models
Shashank Dattathri, Priyamvada Natarajan, Antonio J. Porras-Valverde +4
We study the co-evolution of black holes (BHs) and their host galaxies in the ASTRID and Illustris-TNG300 cosmological simulations and the Dark Sage Semi-Analytic Model (SAM), focu…
Multi-wavelength constraints on the local black hole occupation fraction
Colin J. Burke, Priyamvada Natarajan, Vivienne F. Baldassare +1
The fraction of dwarf galaxies hosting central, intermediate-mass black holes (IMBHs) at low redshifts is an important observational probe of black hole seeding at high redshift. D…
Prior-Informed AGN-Host Spectral Decomposition Using PyQSOFit
Wenke Ren, Hengxiao Guo, Yue Shen +4
We introduce an improved method for decomposing the emission of active galactic nuclei (AGN) and their host galaxies using templates from principal component analysis (PCA). This a…
High-quality Extragalactic Legacy-field Monitoring (HELM) with DECam
Ming-Yang Zhuang, Qian Yang, Yue Shen +45
High-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the D…
DAVOS: Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds: Properties of Variability-Selected Active Galactic Nuclei in the COSMOS Field and Expectations for the Rubin Observatory
Colin J. Burke, Yichen Liu, Charlotte A. Ward +3
We study the black hole mass host galaxy stellar mass relation, , of a sample of optically-variable AGNs in the COSMOS field. The parent sample of 4…
TESS photometry of the nova eruption in V606 Vul: asymmetric photosphere and multiple ejections?
Kirill V. Sokolovsky, Elias Aydi, Konstantin Malanchev +70
Lightcurves of many classical novae deviate from the canonical "fast rise - smooth decline" pattern and display complex variability behavior. We present the first TESS-space-photom…
Gemini Near-infrared Spectroscopy of High-Redshift Fermi Blazars: Jetted Black Holes in the Early Universe Were Overly Massive
Colin J. Burke, Xin Liu, Yue Shen
Jetted active galactic nuclei (AGNs) are the principal extragalactic -ray sources. Fermi-detected high-redshift () blazars are jetted AGNs thought to be powered by massive,…
Detection, Instance Segmentation, and Classification for Astronomical Surveys with Deep Learning (DeepDISC): Detectron2 Implementation and Demonstration with Hyper Suprime-Cam Data
G. M. Merz, Y. Liu, C. J. Burke +4
The next generation of wide-field deep astronomical surveys will deliver unprecedented amounts of images through the 2020s and beyond. As both the sensitivity and depth of observat…
The variational slope of quasar light curves is not a distance indicator
Colin J. Burke
When the time difference quotients, or variational slopes, of quasar light curves are plotted against their absolute magnitudes, there is a tight positive correlation of $\sim 0.16…
Dwarf AGNs from Variability for the Origins of Seeds (DAVOS): Optical Variability of Broad-line Dwarf AGNs from the Zwicky Transient Facility
Z. Franklin Wang, Colin J. Burke, Xin Liu +1
We study the optical variability of a sample of candidate low-mass (dwarf ang Seyfert) active galactic nuclei (AGNs) using Zwicky Transient Facility g-band light curves. Our sample…
From Data to Software to Science with the Rubin Observatory LSST
Katelyn Breivik, Andrew J. Connolly, K. E. Saavik Ford +97
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) dataset will dramatically alter our understanding of the Universe, from the origins of the Solar System to the…
Dwarf AGNs from Variability for the Origins of Seeds (DAVOS): Intermediate-mass black hole demographics from optical synoptic surveys
Colin J. Burke, Yue Shen, Xin Liu +4
We present a phenomenological forward Monte Carlo model for forecasting the population of active galactic nuclei (AGNs) in dwarf galaxies observable via their optical variability.…
Optical Variability of Quasars with 20-Year Photometric Light Curves
Zachary Stone, Yue Shen, Colin J. Burke +52
We study the optical photometric variability of a sample of 190 quasars within the SDSS Stripe 82 region that have long-term photometric coverage during with…
Dwarf AGNs from Optical Variability for the Origins of Seeds (DAVOS): Insights from the Dark Energy Survey Deep Fields
Colin J. Burke, Xin Liu, Yue Shen +69
We present a sample of 706, active galactic nuclei (AGNs) selected from optical photometric variability in three of the Dark Energy Survey (DES) deep fields (E2, C3, and…
Give Me a Few Hours: Exploring Short Timescales in Rubin Observatory Cadence Simulations
Eric C. Bellm, Colin J. Burke, Michael W. Coughlin +3
The limiting temporal resolution of a time-domain survey in detecting transient behavior is set by the time between observations of the same sky area. We analyze the distribution o…
A Sample Bias in Quasar Variability Studies
Yue Shen, Colin J. Burke
When a flux-limited quasar sample is observed at later times, there will be more dimmed quasars than brightened ones, due to a selection bias induced at the time of sample selectio…
A characteristic optical variability timescale in astrophysical accretion disks
Colin J. Burke, Yue Shen, Omer Blaes +8
Accretion disks around supermassive black holes in active galactic nuclei produce continuum radiation at ultraviolet and optical wavelengths. Physical processes in the accretion fl…