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In this paper we present simulated solar coronal X-ray observations to verify the sensitivity of a new hypothetical instrument design. These simulations are folded through this X-ray spectrometer having a moderate size circular field of…

Instrumentation and Methods for Astrophysics · Physics 2011-11-29 L. Alha , J. Huovelin , J. Nevalainen

We present a photometric analysis of star and star cluster (SC) formation in a high-resolution simulation of a dwarf galaxy starburst that allows the formation of individual stars to be followed. Previous work demonstrated that the…

Astrophysics of Galaxies · Physics 2022-06-30 Natalia Lahén , Thorsten Naab , Guinevere Kauffmann

The error in the Solar system ephemeris will lead to dipolar correlations in the residuals of pulsar timing array for widely separated pulsars. In this paper, we utilize such correlated signals, and construct a Bayesian data-analysis…

Instrumentation and Methods for Astrophysics · Physics 2018-02-16 Y. J. Guo , K. J. Lee , R. N. Caballero

This paper presents a mathematical model to simulate the trajectory of a meteor as seen by a single observer located anywhere on Earth. Our strategy is to define a new coordinate system, called Radiant Coordinate System, which is centered…

Earth and Planetary Astrophysics · Physics 2019-05-27 Marcos Cardinot , Anderson Namen

The Vera Rubin Observatory's Legacy Survey of Space and Time (LSST) is expected to revolutionize time-domain optical astronomy as we know it. With its unprecedented depth, the LSST will survey the southern hemisphere sky, generating nearly…

High Energy Astrophysical Phenomena · Physics 2025-06-05 Andrea Simongini , F. Ragosta , I. Di Palma , S. Piranomonte

We study the predicted sub-mm emission from massive galaxies in a Lambda-CDM universe, using hydrodynamic cosmological simulations. Assuming that most of the emission from newly formed stars is absorbed and reradiated in the rest-frame…

Astrophysics · Physics 2007-05-23 Mark A. Fardal , Neal Katz , David H. Weinberg , Romeel Davé , Lars Hernquist

Improving predictive understanding of Earth system variability and change requires data-model integration. Efficient data-model integration for complex models requires surrogate modeling to reduce model evaluation time. However, building a…

Machine Learning · Statistics 2019-01-17 Dan Lu , Daniel Ricciuto

We present an overview and first results of the Stratospheric Observatory For Infrared Astronomy Massive (SOMA) Star Formation Survey, which is using the FORCAST instrument to image massive protostars from $\sim10$--$40\:\rm{\mu}\rm{m}$.…

The Atacama Large Millimeter/submillimeter Array (ALMA) will be a valuable tool for observing the chromosphere of our Sun at (sub-)millimeter wavelengths at high spatial, temporal and spectral resolution and as such has great potential to…

Solar and Stellar Astrophysics · Physics 2015-02-24 Sven Wedemeyer , Tim Bastian , Roman Brajsa , Miroslav Barta , Masumi Shimojo

The 4MOST Cosmology Redshift Survey (CRS) will perform stringent cosmological tests via spectroscopic clustering measurements that will complement the best lensing, cosmic microwave background and other surveys in the southern hemisphere.…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-02 J. Richard , J. -P. Kneib , C. Blake , A. Raichoor , J. Comparat , T. Shanks , J. Sorce , M. Sahlén , C. Howlett , E. Tempel , R. McMahon , M. Bilicki , B. Roukema , J. Loveday , D. Pryer , T. Buchert , C. Zhao

Current submillimetre surveys are hindered in their ability to reveal detailed information on the epoch of galaxy formation and the evolutionary history of a high-redshift starburst galaxy population. The difficulties are due to the small…

Astrophysics · Physics 2007-05-23 David H. Hughes , Enrique Gaztanaga

With the advent of deep learning for computer vision tasks, the need for accurately labeled data in large volumes is vital for any application. The increasingly available large amounts of solar image data generated by the Solar Dynamic…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Toqi Tahamid Sarker , Juan M. Banda

In this decade astronomy is undergoing a paradigm shift to handle data from next generation observatories such as the Square Kilometre Array (SKA) or the Vera C. Rubin Observatory (LSST). Producing real time data streams of up to 10 TB/s…

Instrumentation and Methods for Astrophysics · Physics 2021-09-23 Michael A. C. Johnson , Marcus Paradies , Marta Dembska , Kristen Lackeos , Hans-Rainer Klöckner , David J. Champion , Sirko Schindler

We analyse the respective benefits and drawbacks of ground-based and space-based transit surveys for extrasolar planets. Based on simple but realistic assumptions about the fraction of lower main sequence stars harboring telluric and giant…

Astrophysics · Physics 2009-11-11 M. Gillon , F. Courbin , P. Magain , B. Borguet

Ground and space-based sky surveys enable powerful cosmological probes based on measurements of galaxy properties and the distribution of galaxies in the Universe. These probes include weak lensing, baryon acoustic oscillations, abundance…

The Cosmological Advanced Survey Telescope for Optical and UV Research (CASTOR) is a planned flagship space telescope, covering the blue-optical and UV part of the spectrum. Here we introduce the CASTOR image simulator, a Python GalSim…

A prototype system for the Permanent All Sky Survey (PASS) project is presented. PASS is a continuous photometric survey of the entire celestial sphere with a high temporal resolution. Its major objectives are the detection of all…

Astrophysics · Physics 2009-11-10 H. J. Deeg , R. Alonso , J. A. Belmonte , Keith Horne , K. Alsubai , A. C. Cameron , L. R. Doyle

Groups and clusters of galaxies are a current focus of astronomical research owing to their role in determining the environmental effects on galaxies and the constraints they provide to cosmology. The eROSITA X-ray telescope on board the…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-02 A. Finoguenov , A. Merloni , J. Comparat , K. Nandra , M. Salvato , E. Tempel , A. Raichoor , J. Richard , J. -P. Kneib , A. Pillepich , M. Sahlén , P. Popesso , P. Norberg , R. McMahon

Understanding the initiation of solar flares and coronal mass ejections (CMEs) is essential for improving forecasts of extreme space weather. Soft X-ray (SXR) and Extreme Ultraviolet (EUV) observations provide critical diagnostics of the…

Time-series transit photometry from the Kepler space telescope has allowed for the discovery of thousands of exoplanets. We explore the potential of yet improved future missions such as PLATO 2.0 in detecting solar system analogues. We use…

Earth and Planetary Astrophysics · Physics 2015-09-09 Michael Hippke , Daniel Angerhausen
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