Search Publications
Optical follow-up of gravitational wave triggers with DECam during the first two LIGO/VIRGO observing runs
Berger, E.; Bechtol, K.; Smith, M. +82 more
Gravitational wave (GW) events detectable by LIGO and Virgo have several possible progenitors, including black hole mergers, neutron star mergers, black hole-neutron star mergers, supernovae, and cosmic string cusps. A subset of GW events is expected to produce electromagnetic (EM) emission that, once detected, will provide complementary informati…
Exo-MerCat: A merged exoplanet catalog with Virtual Observatory connection
Claudi, R.; Bignamini, A.; Molinaro, M. +1 more
The heterogeneity of papers dealing with the discovery and characterization of exoplanets makes every attempt to maintain a uniform exoplanet catalog almost impossible. Four sources currently available online (NASA Exoplanet Archive, Exoplanet Orbit Database, Exoplanet Encyclopaedia, and Open Exoplanet Catalogue) are commonly used by the community…
E0102-VR: Exploring the scientific potential of Virtual Reality for observational astrophysics
Baracaglia, E.; Vogt, F. P. A.
Virtual Reality (VR) technology has been subject to a rapid democratization in recent years, driven in large by the entertainment industry, and epitomized by the emergence of consumer-grade, plug-and-play, room-scale VR devices. To explore the scientific potential of this technology for the field of observational astrophysics, we have created an e…
IVOA HiPS implementation in the framework of WorldWide Telescope
Li, S.; Li, C.; Xu, Y. +9 more
The WorldWide Telescope(WWT) is a scientific visualization platform which can browse deep space images, star catalogs, and planetary remote sensing data from different observation facilities in a three-dimensional virtual scene. First launched and then open-sourced by Microsoft Research, the WWT is now managed by the American Astronomical Society …
A machine learning classifier for microlensing in wide-field surveys
Bachelet, E.; Street, R. A.; Narayan, G. +1 more
While microlensing is very rare, occurring on average once per million stars observed, current and near-future surveys are coming online with the capability of providing photometry of almost the entire visible sky to depths up to R ∼22 mag or fainter every few days, which will contribute to the detection of black holes and exoplanets through follo…
Identifying transient and variable sources in radio images
Eislöffel, J.; Wijers, R. A. M. J.; Fender, R. +16 more
With the arrival of a number of wide-field snapshot image-plane radio transient surveys, there will be a huge influx of images in the coming years making it impossible to manually analyse the datasets. Automated pipelines to process the information stored in the images are being developed, such as the LOFAR Transients Pipeline, outputting light cu…
The ssos pipeline: Identification of Solar System objects in astronomical images
Bertin, E.; Bouy, H.; Carry, B. +3 more
Observatories and satellites around the globe produce tremendous amounts of imaging data to study many different astrophysical phenomena. The serendipitous observations of Solar System objects are a fortunate by-product which have often been neglected due to the lack of a simple yet efficient identification algorithm. Meanwhile, the determination …
The data processing pipeline for the Herschel1- HIFI instrument
Shipman, R. F.; Edwards, K.; Kester, D. +2 more
The HIFI data processing pipeline was developed to systematically process diagnostic, calibration and astronomical observations taken with the HIFI science instrument as part of the Herschel mission. The HIFI pipeline processed data from all HIFI observing modes within the Herschel automated processing environment, as well as, within an interactiv…
Estimation of error on the cross-correlation, phase and time lag between evenly sampled light curves
Misra, R.; Dewangan, G.; Bora, A.
Temporal analysis of radiation from Astrophysical sources like Active Galactic Nuclei, X-ray Binaries and Gamma-ray bursts provides information on the geometry and sizes of the emitting regions. Establishing that two light-curves in different energy bands are correlated, and measuring the phase and time-lag between them is an important and frequen…
fcmaker: Automating the creation of ESO-compliant finding charts for Observing Blocks on p2
Vogt, F. P. A.
FCMAKER is a PYTHON module that creates astronomical finding charts for Observing Blocks (OBs) on the p2 web server from the European Southern Observatory (ESO). It provides users with the ability to automate the creation of ESO-compliant finding charts for Service Mode and/or Visitor Mode OBs at the Very Large Telescope (VLT). The design of the F…