Explanipedia

Quantifying the Impact of LSST <i>u</i> -band Survey Strategy on Photometric Redshift Estimation and the Detection of Lyman-break Galaxies Open

Boris Leistedt, M. L. Graham, Constantin Payerne, Andrew J. Connolly, Eric Gawiser , et al. · 2025

The Vera C. Rubin Observatory will conduct the Legacy Survey of Space and Time (LSST), promising to discover billions of galaxies out to redshift 7, using six photometric bands ( ugrizy ) spanning the near-ultraviolet to the near-infrared.…

Photometric Redshift Estimation for Rubin Observatory Data Preview 1 with Redshift Assessment Infrastructure Layers (RAIL) Open

T. Zhang, E. Charles, John Franklin Crenshaw, Samuel J. Schmidt, Prakruth Adari , et al. · 2025

We present the first systematic analysis of photometric redshifts (photo-z) estimated from the Rubin Observatory Data Preview 1 (DP1) data taken with the Legacy Survey of Space and Time (LSST) Commissioning Camera. Employing the Redshift A…

ImageMM: Joint Multi-frame Image Restoration and Super-resolution Open

Yashil Sukurdeep, Tamás Budavári, Andrew J. Connolly, Fausto Navarro · 2025

A key processing step in ground-based astronomy involves combining multiple noisy and blurry exposures to produce an image of the night sky with an improved signal-to-noise ratio. Typically, this is achieved via image coaddition, and can b…

A Common Origin of Normal Type Ia Supernovae Suggested by the Photometric Diversity Open

W.L. Kimmy Wu, Ji-an Jiang, Dezheng Meng, Zelin Xu, Keiichi Maeda , et al. · 2025

In recent years, with the increasing number of type Ia supernovae (SNe Ia) discovered soon after their explosions, a nonnegligible fraction of SNe Ia with early-excess emissions (EExSNe Ia) have been confirmed. In this paper, we present a …

A Systematic Search for Main-sequence Dipper Stars Using the Zwicky Transient Facility Open

Anastasios Tzanidakis, James R. A. Davenport, Neven Čaplar, Eric C. Bellm, Wilson Beebe , et al. · 2025

Main-sequence dipper stars, characterized by irregular and often aperiodic luminosity dimming events, offer a unique opportunity to explore the variability of circumstellar material and its potential links to planet formation, debris disks…

The Rubin Comet Catchers Citizen Science Project: Launch and Initial Results Open

Colin Orion Chandler, Maxwell Frissell, Naomi Morato, Jacob A. Kurlander, Dmitrii Vavilov , et al. · 2025

Cometary activity — visible as tails or comae — offers a fleeting glimpse into the icy, volatile-rich small bodies of our solar system. Yet, despite the anticipated discovery of five million minor planets by the Vera C. Rubin Observatory’s…

Open-source models for development of data and metadata standards Open

Ariel Rokem, Vani Mandava, Nicoleta Cristea, Anshul Tambay, Kristofer E. Bouchard , et al. · 2025

Machine learning and artificial intelligence promise to accelerate research and understanding across many scientific disciplines. Harnessing the power of these techniques requires aggregating scientific data. In tandem, the importance of o…

Estimates of Rotation Periods for Jupiter Trojans with the Zwicky Transient Facility Photometric Lightcurves Open

Zhuofu Li, Yasin A. Chowdhury, A. Mahabal, Ari Heinze, Lynne Jones , et al. · 2025

We present new rotational period estimates for 216 Jupiter Trojans using photometric data from the Zwicky Transient Facility (ZTF), including 80 Trojans with previously unknown periods. Our analysis reveals rotation periods ranging from 4.…

Quantifying the Impact of LSST $u$-band Survey Strategy on Photometric Redshift Estimation and the Detection of Lyman-break Galaxies Open

John Franklin Crenshaw, Boris Leistedt, M. L. Graham, Constantin Payerne, Andrew J. Connolly , et al. · 2025

The Vera C. Rubin Observatory will conduct the Legacy Survey of Space and Time (LSST), promising to discover billions of galaxies out to redshift 7, using six photometric bands ($ugrizy$) spanning the near-ultraviolet to the near-infrared.…

ImageMM: Joint multi-frame image restoration and super-resolution Open

Yashil Sukurdeep, Tamás Budavári, Andrew J. Connolly, Fausto Navarro · 2025

A key processing step in ground-based astronomy involves combining multiple noisy and blurry exposures to produce an image of the night sky with an improved signal-to-noise ratio. Typically, this is achieved via image coaddition, and can b…

Using LSDB to enable large-scale catalog distribution, cross-matching, and analytics Open

Neven Čaplar, Wilson Beebe, Doug Branton, Sandro Campos, Andrew J. Connolly , et al. · 2025

The Vera C. Rubin Observatory will generate an unprecedented volume of data, including approximately 60 petabytes of raw data and around 30 trillion observed sources, posing a significant challenge for large-scale and end-user scientific a…

Towards an open-source model for data and metadata standards Open

Ariel Rokem, Vani Mandava, Nicoleta Cristea, Anshul Tambay, Andrew J. Connolly · 2024

Progress in machine learning and artificial intelligence promises to advance research and understanding across a wide range of fields and activities. In tandem, increased awareness of the importance of open data for reproducibility and sci…

Widespread service fragmentation for patients and families with tuberous sclerosis complex (TSC) in the Republic of Ireland Open

Mary Vasseghi, Caragh Behan, Andrew J. Connolly, D. Cunningham, Eugene Dempsey , et al. · 2024

Denser Environments Cultivate Larger Galaxies: A Comprehensive Study beyond the Local Universe with 3 Million Hyper Suprime-Cam Galaxies Open

Aritra Ghosh, C. M. Urry, Meredith C. Powell, Rhythm Shimakawa, Frank C. van den Bosch , et al. · 2024

The relationship between galaxy size and environment has remained enigmatic, with over a decade of conflicting results. We present one of the first comprehensive studies of the variation of galaxy radius with environment beyond the local U…

Probabilistic Forward Modeling of Galaxy Catalogs with Normalizing Flows Open

John Franklin Crenshaw, J. Bryce Kalmbach, Alexander Gagliano, Ziang Yan, Andrew J. Connolly , et al. · 2024

Evaluating the accuracy and calibration of the redshift posteriors produced by photometric redshift (photo- z ) estimators is vital for enabling precision cosmology and extragalactic astrophysics with modern wide-field photometric surveys.…

A Python Project Template for Healthy Scientific Software Open

Drew Oldag, Melissa DeLucchi, Wilson Beebe, Doug Branton, Sandro Campos , et al. · 2024

The creation of “healthy” scientific software is vital for its successful long-term adoption in scientific research. Here healthy code is defined to mean software that is usable, maintainable, and proffers consistently reproducible results…

Probabilistic Forward Modeling of Galaxy Catalogs with Normalizing Flows Open

John Franklin Crenshaw, J. Bryce Kalmbach, Alexander Gagliano, Ziang Yan, Andrew J. Connolly , et al. · 2024

Evaluating the accuracy and calibration of the redshift posteriors produced by photometric redshift (photo-z) estimators is vital for enabling precision cosmology and extragalactic astrophysics with modern wide-field photometric surveys. E…

Apocalypse deferred: Evangelical imagination and the decline of White Christian America Open

Ken Paradis, Andrew J. Connolly · 2024

The DECam Ecliptic Exploration Project (DEEP). III. Survey Characterization and Simulation Methods Open

Pedro H. Bernardinelli, Hayden Smotherman, Zachary Langford, Stephen K. N. Portillo, Andrew J. Connolly , et al. · 2024

We present a detailed study of the observational biases of the DECam Ecliptic Exploration Project’s B1 data release and survey simulation software that enables direct statistical comparisons between models and our data. We inject a synthet…

The DECam Ecliptic Exploration Project (DEEP). VI. First Multiyear Observations of Trans-Neptunian Objects Open

Hayden Smotherman, Pedro H. Bernardinelli, Stephen K. N. Portillo, Andrew J. Connolly, J. Bryce Kalmbach , et al. · 2024

We present the first set of trans-Neptunian objects (TNOs) observed on multiple nights in data taken from the DECam Ecliptic Exploration Project. Of these 110 TNOs, 105 do not coincide with previously known TNOs and appear to be new discov…

Maximizing the scientific return of Roman and Rubin with a joint wide-sky observing strategy Open

Federica Bianco, Robert Blum, Andrew J. Connolly, M. L. Graham, L. P. Guy , et al. · 2024

This work presents the case for a single-band LSST-matched depth Roman Community Survey over the footprint of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) Wide-Fast-Deep to enhance the key science programs of both m…

The DECam Ecliptic Exploration Project (DEEP). V. The Absolute Magnitude Distribution of the Cold Classical Kuiper Belt Open

Kevin J. Napier, Hsing Wen Lin, D. W. Gerdes, Fred C. Adams, Anna M. Simpson , et al. · 2024

The DECam Ecliptic Exploration Project (DEEP) is a deep survey of the trans-Neptunian solar system being carried out on the 4 m Blanco telescope at the Cerro Tololo Inter-American Observatory in Chile using the Dark Energy Camera (DECam). …

Using AI for Wave-front Estimation with the Rubin Observatory Active Optics System Open

John Franklin Crenshaw, Andrew J. Connolly, J. Meyers, J. Bryce Kalmbach, Guillem Megias Homar , et al. · 2024

The Vera C. Rubin Observatory will, over a period of 10 yr, repeatedly survey the southern sky. To ensure that images generated by Rubin meet the quality requirements for precision science, the observatory will use an active-optics system …

Finding Common Ground in the Field to Inform Science Policy Open

Sunday Siomades, Blair Schneider, Andrew J. Connolly · 2023

The Kansas Geological Survey’s annual Field Conference takes scientists, producers, legislators, and public officials around the state to spark conversation about natural resources.

The DECam Ecliptic Exploration Project (DEEP) III: Survey characterization and simulation methods Open

Pedro H. Bernardinelli, Hayden Smotherman, Zachary Langford, Stephen K. N. Portillo, Andrew J. Connolly , et al. · 2023

We present a detailed study of the observational biases of the DECam Ecliptic Exploration Project's (DEEP) B1 data release and survey simulation software that enables direct statistical comparisons between models and our data. We inject a …

The DECam Ecliptic Exploration Project (DEEP) VI: first multi-year observations of trans-Neptunian objects Open

Hayden Smotherman, Pedro H. Bernardinelli, Stephen K. N. Portillo, Andrew J. Connolly, J. Bryce Kalmbach , et al. · 2023

We present the first set of trans-Neptunian objects (TNOs) observed on multiple nights in data taken from the DECam Ecliptic Exploration Project (DEEP). Of these 110 TNOs, 105 do not coincide with previously known TNOs and appear to be new…

The DECam Ecliptic Exploration Project (DEEP): V. The Absolute Magnitude Distribution of the Cold Classical Kuiper Belt Open

Kevin J. Napier, Hsing Wen Lin, D. W. Gerdes, Fred C. Adams, Anna M. Simpson , et al. · 2023

The DECam Ecliptic Exploration Project (DEEP) is a deep survey of the trans-Neptunian solar system being carried out on the 4-meter Blanco telescope at Cerro Tololo Inter-American Observatory in Chile using the Dark Energy Camera (DECam). …

Issue Info ‐ Call for papers (Theme 2) Open

Kenneth Paradis, Andrew J. Connolly · 2023

Two decades ago American Evangelical culture (understood, as Anthea Butler argues, to imply a primarily "White" Evangelical culture) was at the apex of its cultural influence and demographic reach, and a certain sense of immanent Apocalyps…

Software Engineering Practices in Academia: Promoting the 3Rs—Readability, Resilience, and Reuse Open

Andrew J. Connolly, Joseph L. Hellerstein, Naomi Alterman, David A. C. Beck, Rob Fatland , et al. · 2023

Over the past decade as data science has become integral to the research workflow, we, like many others, have learned that good data science requires high-quality software engineering. Unfortunately, our experience is that many data scienc…

Supplementary Figure 1 from Obligate Progression Precedes Lung Adenocarcinoma Dissemination Open

Deborah R. Caswell, Chen-Hua Chuang, Dian Yang, Shin‐Heng Chiou, Shashank Cheemalavagu , et al. · 2023

PDF file 2560K, Titratable induction of early and late stage lung cancer in KrasLSLG12D/+;p53flox/flox;R26tdTomato/+ (KPT) mice

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