output
20212025
most citedThe Time Domain Spectroscopic Survey: Changing-Look Quasar Candidates from Multi-Epoch Spectroscopy in SDSS-IV

69 citations

7 papers

cs.CV2025★ 1 cited

Smartflow: Enabling Scalable Spatiotemporal Geospatial Research

David McVicar, Brian Avant, Adrian Gould +3

BlackSky introduces Smartflow, a cloud-based framework enabling scalable spatiotemporal geospatial research built on open-source tools and technologies. Using STAC-compliant catalo…

astro-ph.IM2025★ 1 cited

Toward Optimisation of a Sub-Terahertz Spaceborne VLBI Mission

Ben Hudson, Leonid I. Gurvits, Daniel Palumbo +2

Very Long Baseline Interferometry (VLBI) provides the finest angular resolution of all astronomical observation techniques. However, observations with Earth-based instruments are a…

cs.SE2024★ 3 cited

Computer Vision Intelligence Test Modeling and Generation: A Case Study on Smart OCR

Jing Shu, Bing-Jiun Miu, Eugene Chang +2

AI-based systems possess distinctive characteristics and introduce challenges in quality evaluation at the same time. Consequently, ensuring and validating AI software quality is o…

astro-ph.GA2023★ 35 cited

Probing the Origin of Changing-look Quasar Transitions with Chandra

Qian Yang, Paul J. Green, Chelsea L. MacLeod +9

Extremely variable quasars can also show strong changes in broad-line emission strength and are known as changing-look quasars (CLQs). To study the CLQ transition mechanism, we pre…

astro-ph.GA2022★ 8 cited

The long-term broad-line responsivity in MKN 110

D. Homan, A. Lawrence, M. Ward +7

We examine the long-term history of the optical spectrum of the extremely variable Active Galactic Nucleus (AGN) MKN 110. By combining various archival data with new data, we cover…

astro-ph.GA2022★ 69 cited

The Time Domain Spectroscopic Survey: Changing-Look Quasar Candidates from Multi-Epoch Spectroscopy in SDSS-IV

Paul J. Green, Lina Pulgarin-Duque, Scott F. Anderson +18

Active galactic nuclei (AGN) can vary significantly in their rest-frame optical/UV continuum emission, and with strong associated changes in broad line emission, on much shorter ti…

astro-ph.HE2021★ 14 cited

Probing the disk-corona systems and broad line regions of changing-look quasars with X-ray and optical observations

Xiangyu Jin, John J. Ruan, Daryl Haggard +8

"Changing-look" quasars are a new class of highly variable active galactic nuclei that have changed their spectral type over surprisingly short timescales of just a few years. The…