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Increasingly there is a need to develop astronomical visualisation and manipulations tools which allow viewers to interact with displayed data directly, in real time and across a range of platforms. In addition, increases in dynamic range…

Instrumentation and Methods for Astrophysics · Physics 2016-01-05 P. Mohan , C. Hawkins , R. Klapaukh , M. Johnston-Hollitt

We present the design for HALO7D-X, a survey of the stellar halo to investigate the accretion history of the Milky Way. The survey will use a combination of Hubble Space Telescope (HST) and Gaia data for sky position and proper motions of…

Astrophysics of Galaxies · Physics 2025-07-08 Miranda Apfel , Kevin A. McKinnon , Constance M. Rockosi , Puragra Guhathakurta , Kathryn V. Johnston

Context: The ESO Public Survey "VISTA Variables in the V\'ia L\'actea" (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims: The VVV…

We present the WiFeS Atlas of Galactic Globular cluster Spectra, a library of integrated spectra of Milky Way and Local Group globular clusters. We used the WiFeS integral field spectrograph on the Australian National University 2.3 m…

We present a new method for determining the Galactic gravitational potential based on forward modeling of tidal stellar streams. We use this method to test the performance of smooth and static analytic potentials in representing realistic…

Astrophysics of Galaxies · Physics 2015-06-22 Ana Bonaca , Marla Geha , Andreas H. W. Kuepper , Juerg Diemand , Kathryn V. Johnston , David W. Hogg

We develop a new machine learning algorithm, Via Machinae, to identify cold stellar streams in data from the Gaia telescope. Via Machinae is based on ANODE, a general method that uses conditional density estimation and sideband…

Astrophysics of Galaxies · Physics 2021-12-30 David Shih , Matthew R. Buckley , Lina Necib , John Tamanas

Fostered by upcoming data from new generation observational campaigns, we are about to enter a new era for the study of how galaxies form and evolve. The unprecedented quantity of data that will be collected, from distances only marginally…

ALTO is a concept/project in the exploratory phase since 2013 aiming to build a wide-field VHE gamma-ray observatory at very high altitude in the Southern hemisphere. The operation of such an observatory will complement the Northern…

Instrumentation and Methods for Astrophysics · Physics 2017-08-04 Yvonne Becherini , Satyendra Thoudam , Michael Punch , Jean-Pierre Ernenwein

Studies of future space- and ground-based exoplanet surveys often rely on models of planetary systems to simulate instrument response, estimate scientific yields, perform trade analyses, and study efficient observation strategies. Until…

Earth and Planetary Astrophysics · Physics 2022-02-09 Christopher C. Stark

Gaia mission will offer an exceptional opportunity to perform variability studies. The data homogeneity, its optimised photometric systems, composed of 11 medium and 4-5 broad bands, the high photometric precision in G band of one milli-mag…

Astrophysics · Physics 2007-05-23 Laurent Eyer

We present an innovative method called FilExSeC (Filaments Extraction, Selection and Classification), a data mining tool developed to investigate the possibility to refine and optimize the shape reconstruction of filamentary structures…

A Virtual Observatory (VO) will enable transparent and efficient access, search, retrieval, and visualization of data across multiple data repositories, which are generally heterogeneous and distributed. Aspects of data mining that apply to…

Astrophysics · Physics 2009-10-31 Kirk D. Borne

Significant advances have been made over the past decade in the characterization of multiple protostar systems, enabled by the Karl G. Jansky Very Large Array (VLA), high-resolution infrared observations with the Hubble Space Telescope, and…

In the multi-messenger era, astronomical projects share information about transients phenomena issuing science alerts to the Scientific Community through different communications networks. This coordination is mandatory to understand the…

Instrumentation and Methods for Astrophysics · Physics 2023-02-08 N. Parmiggiani , A. Bulgarelli , D. Beneventano , V. Fioretti , L. Baroncelli , A. Addis , M. Tavani

We present VIRAC version 1, a near-infrared proper motion and parallax catalogue of the VISTA VVV survey for 312,587,642 unique sources averaged across all overlapping pawprint and tile images covering 560 deg$^2$ of the bulge of the Milky…

The spatial and temporal relationships between stellar age, kinematics, and chemistry are a fundamental tool for uncovering the physics driving galaxy formation and evolution. Observationally, these trends are derived using carefully…

Astrophysics of Galaxies · Physics 2022-10-26 M. S. Miranda , B. A. Macfarlane , B. K. Gibson

The U.S. Virtual Astronomical Observatory was a software infrastructure and development project designed both to begin the establishment of an operational Virtual Observatory (VO) and to provide the U.S. coordination with the international…

Instrumentation and Methods for Astrophysics · Physics 2015-04-10 R. J. Hanisch , G. B. Berriman , T. J. W. Lazio , S. Emery Bunn , J. Evans , T. A. McGlynn , R. Plante

We present the description of the project \texttt{SCORPIO}, a Python package for retrieving images and associated data of galaxy pairs based on their position, facilitating visual analysis and data collation of multiple archetypal systems.…

Instrumentation and Methods for Astrophysics · Physics 2021-11-09 Jose A. Benavides , Martín Chalela , Juan B. Cabral , Bruno O. Sánchez , Sebastian Gurovich

The 2175 {\AA} bump shows considerable variations in its strength, width, and central wavelength when observed along different sightlines in the Milky Way and other galaxies. These variations offer valuable insights into the composition,…

Instrumentation and Methods for Astrophysics · Physics 2024-07-23 Joice Mathew , Andrew Battisti , Israel Vaughn , Shubhangi Jain , Rekhesh Mohan , Jayant Murthy

Most visual analytics systems assume that all foraging for data happens before the analytics process; once analysis begins, the set of data attributes considered is fixed. Such separation of data construction from analysis precludes…

Information Retrieval · Computer Science 2020-09-08 Dylan Cashman , Shenyu Xu , Subhajit Das , Florian Heimerl , Cong Liu , Shah Rukh Humayoun , Michael Gleicher , Alex Endert , Remco Chang
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