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We present and analyze a series of synthetic galaxy survey fields based on the IllustrisTNG Simulation suite. With the Illustris public data release and JupyterLab service, we generated a set of twelve lightcone catalogs covering areas from…

Astrophysics of Galaxies · Physics 2022-11-30 Gregory F. Snyder , Theodore Pena , L. Y. Aaron Yung , Caitlin Rose , Jeyhan Kartaltepe , Harry Ferguson

Automated synthesis of histology images has several potential applications in computational pathology. However, no existing method can generate realistic tissue images with a bespoke cellular layout or user-defined histology parameters. In…

Image and Video Processing · Electrical Eng. & Systems 2022-12-29 Srijay Deshpande , Muhammad Dawood , Fayyaz Minhas , Nasir Rajpoot

The mass accretion rates of young stellar objects (YSOs) are key to understanding how stars form, how their circumstellar disks evolve, and even how planets form. We develop a Bayesian framework to determine the accretion rates of a sample…

Solar and Stellar Astrophysics · Physics 2025-01-24 Lauren Halstead Willett , Joe P. Ninan , Suvrath Mahadevan , Gregory R. Zeimann , Steven Janowiecki , Gary J. Hill

We present a practical and robust deep learning solution for capturing and rendering novel views of complex real world scenes for virtual exploration. Previous approaches either require intractably dense view sampling or provide little to…

Computer Vision and Pattern Recognition · Computer Science 2019-05-03 Ben Mildenhall , Pratul P. Srinivasan , Rodrigo Ortiz-Cayon , Nima Khademi Kalantari , Ravi Ramamoorthi , Ren Ng , Abhishek Kar

Using our Binary Population And Spectral Synthesis (BPASS) code we explore the effects on star-formation rate indicators of stochastically sampling the stellar initial mass function, adding a cluster mass dependent stellar upper-mass limit…

Solar and Stellar Astrophysics · Physics 2015-05-28 John J. Eldridge

The statistical shape analysis method developed for probing the link between physical parameters and morphologies of Galactic HII regions is applied here to a set of synthetic observations (SOs) of a numerically modelled HII region. The…

Astrophysics of Galaxies · Physics 2020-07-08 Justyn Campbell-White , Ahmad A. Ali , Dirk Froebrich , Alfred Kume

Context. To identify the real associations of small bodies, we can use synthetic sets of orbits generated by various methods. These are not perfect methods, therefore the assessment of their quality is an essential task. Aims. In this…

Earth and Planetary Astrophysics · Physics 2021-01-20 T. J. Jopek

We summarize the status of a computer simulator for microlens planet surveys. The simulator generates synthetic light curves of microlensing events observed with specified networks of telescopes over specified periods of time. Particular…

In this work, we present a methodology and a corresponding code-base for constructing mock integral field spectrograph (IFS) observations of simulated galaxies in a consistent and reproducible way. Such methods are necessary to improve the…

The past decade has seen a rise in the use of Machine Learning methods in the study of young stellar evolution. This trend has led to a growing need for a comprehensive database of young stellar objects (YSO) that goes beyond…

Solar and Stellar Astrophysics · Physics 2025-10-08 J. Roquette , M. Audard , D. Hernandez , I. Gezer , G. Marton , C. Mas , M. Madarász , O. Dionatos

We investigate the star formation activity in a young star forming cluster embedded at the edge of the RCW 41 HII region. As a complementary goal, we aim at demonstrating the gain provided by Wide-Field Adaptive Optics instruments to study…

Solar and Stellar Astrophysics · Physics 2015-04-22 B. Neichel , M. R. Samal , H. Plana , A. Zavagno , A. Bernard , T. Fusco

We present a new domain-agnostic synthesis technique for generating programs from input-output examples. Our method, called metric program synthesis, relaxes the well-known observational equivalence idea (used widely in bottom-up…

Programming Languages · Computer Science 2022-10-12 John Feser , Isil Dillig , Armando Solar-Lezama

The Hubble Space Telescope (HST) survey Measuring Young Stars in Space and Time (MYSST) entails some of the deepest photometric observations of extragalactic star formation, capturing even the lowest mass stars of the active star-forming…

Using the Torus radiative transfer code we produce synthetic observations of the 21 cm neutral hydrogen line from an SPH simulation of a spiral galaxy. The SPH representation of the galaxy is mapped onto an AMR grid, and a ray tracing…

Astrophysics of Galaxies · Physics 2015-05-18 David M. Acreman , Kevin A. Douglas , Clare L. Dobbs , Christopher M. Brunt

We combine archival images for the nearby galaxy M33 (Triangulum Galaxy) from the ultraviolet (UV) to the infrared (IR) to derive ages, masses, and extinctions for the young star cluster population, and compare our physical parameters with…

Astrophysics of Galaxies · Physics 2021-12-22 Caitlin Moeller , Daniela Calzetti

We present a technique to synthesise telluric absorption and emission features both for in-situ wavelength calibration and for their removal from astronomical spectra. While the presented technique is applicable for a wide variety of…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 A. Seifahrt , H. U. Käufl , G. Zängl , J. L. Bean , M. J. Richter , R. Siebenmorgen

(abridged) We present a new tool for building synthetic colour-magnitude diagrams of coeval stellar populations. We study, from a theoretical point of view, the impact of axial rotation of stars on various observed properties of single-aged…

Star formation estimates based on the counting of YSOs is commonly applied to nearby star-forming regions in the Galaxy. With this method, the SFRs are measured using the counts of YSOs in a particular protostellar Class, a typical…

We report results from analyzing the B612 asteroid observation data taken by the sCMOS cameras on board of Planet SkySat-3 using the synthetic tracking technique. The analysis demonstrates the expected sensitivity improvement in the…

Instrumentation and Methods for Astrophysics · Physics 2018-05-04 Chengxing Zhai , Michael Shao , Stephen Lai , Paul Boerner , Jonny Dyer , Edward Lu , Harold Reitsema , Marc Buie

Star formation is a multi-scale problem, and only global simulations that account for the connection from the molecular cloud scale gas flow to the accreting protostar can reflect the observed complexity of protostellar systems.…

Astrophysics of Galaxies · Physics 2023-07-28 Rami Al-Belmpeisi , Vito Tuhtan , Mikkel Bregning Christensen , Rajika L Kuruwita , Troels Haugbølle
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