Results 1 to 10 of about 40,254 (195)

Discovery of optically faint obscured quasars with Virtual Observatory tools [PDF]

Astronomy & Astrophysics, 2004
We use Virtual Observatory (VO) tools to identify optically faint, obscured (i.e., type 2) active galactic nuclei (AGN) in the two Great Observatories Origins Deep Survey (GOODS) fields.
Alexander, Barger, Benítez, Bertin, Bolzonella, Bonnarel, Cohen, Collister, Comastri, Cristiani, Fiore, Forman, Gandhi, Gehrels, Giacconi, Giavalisco, Gilli, Isobe, Jaffe, M. G. Allen, Maccacaro, Marshall, Mobasher, Moran, N. A. Walton, Norman, Ochsenbein, P. Padovani, P. Rosati, Perola, Rowan-Robinson, Shapley, Urry, Walton, Wirth   +34 more
core   +4 more sources

Clusterix 2.0: a virtual observatory tool to estimate cluster membership probability [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Clusterix 2.0 is a web-based, Virtual Observatory compliant, interactive tool for the determination of membership probabilities in stellar clusters based on proper-motion data using a fully non-parametric method. In an area occupied by a cluster, the frequency function is made up of two contributions: cluster and field stars ...
L Balaguer-Núñez, M López del Fresno, E Solano, D Galadí-Enríquez, C Jordi, F Jimenez-Esteban, E Masana, J Carbajo-Hijarrubia, E Paunzen   +8 more
openaire   +8 more sources

How to Make the Dream Come True: The Astronomers' Data Manifesto [PDF]

Data Science Journal, 2007
Astronomy is one of the most data-intensive of the sciences. Data technology is accelerating the quality and effectiveness of its research, and the rate of astronomical discovery is higher than ever. As a result, many view astronomy as being in a "Golden
Ray P Norris
doaj   +5 more sources

Luminous AGB stars in nearby galaxies. A study using Virtual Observatory tools [PDF]

Astronomy & Astrophysics, 2005
Aims. This study focuses on very luminous Mbol1.5 mag and H-Ks>0.4 mag in the LMC, SMC, M31, and M33 from 2MASS data. Methods.The data were taken from the 2MASS All-Sky Point Source catalogue archive.
A. Dapergolas, Battinelli, Battinelli, Beck, Bessell, Bessell, Block, Bonnarel, Brewer, Brewer, Brinks, Cioni, Davidge, Davidge, Demers, Devereux, E. Kontizas, Egan, F. Genova, Frost, Haas, Hughes, Kale, Kontizas, Kontizas, L. Cambrésy, Lee, M. Kontizas, Marigo, Massey, Montegriffo, Morgan, Nikolaev, Ochsenbein, P. Tsalmantza, Pellet, Rebeirot, Rowe, Sofue, Thilker, van den Bergh, van Loon, Wainscoat, Walterbos, Wilson, Wood   +45 more
core   +3 more sources

Multiband Study of Radio Sources of the RCR Catalogue with Virtual Observatory Tools

Open Astronomy, 2012
We present early results of our multiband study of the RATAN Cold Revised (RCR) catalogue obtained from seven cycles of the “Cold” survey carried with the RATAN-600 radio telescope at 7.6 cm in 1980-1999, at the declination of the SS 433 source.
Zhelenkova O. P., Soboleva N. S., Majorova E. K., Temirova A. V.   +3 more
doaj   +2 more sources

Exploring the Role of Artificial Intelligence in Evidence Synthesis: Insights From the CORE Information Retrieval Forum 2025 [PDF]

Cochrane Evidence Synthesis and Methods
Introduction Information retrieval is essential for evidence synthesis, but developing search strategies can be labor‐intensive and time‐consuming.
Claire H. Eastaugh, Madeleine Still, Fiona R. Beyer, Sheila A. Wallace, Hannah O'Keefe   +4 more
doaj   +2 more sources

Topic Maps as a Virtual Observatory tool [PDF]

SPIE Proceedings, 2001
One major component of the VO will be catalogs measuring gigabytes and terrabytes if not more. Some mechanism like XML will be used for structuring the information. However, such mechanisms are not good for information retrieval on their own. For retrieval we use queries.
Mahabal, Ashish, Djorgovski, S. G., Brunner, Robert, Williams, Roy   +3 more
openaire   +4 more sources

TESELA: a new Virtual Observatory tool to determine blank fields for astronomical observations [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
Accepted for publication in Monthly Notices of the Royal Astronomical Society. 11 pages, 10 figures.
Cardiel López, Nicolás, Jiménez Esteban, F. M., Alacid, J. M., Solano, E., Aberasturi, M.   +4 more
openaire   +5 more sources

VIRTUAL REPRESENTATIONS IN IMMERSIVE ENVIRONMENTS TO SUPPORT CULTURAL SIGNIFICANCE ASSESSMENT [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This paper explores the potential of virtual representations of the built heritage integrated in immersive web-based platform to support the work of experts in collecting, formalizing, and communicating data about its Cultural Significance (CS) in a ...
P. Jouan, P. Hallot
doaj   +1 more source

SEARCH FOR BRIGHT NEARBY M DWARFS WITH VIRTUAL OBSERVATORY TOOLS [PDF]

The Astronomical Journal, 2014
Using Virtual Observatory tools, we cross-matched the Carlsberg Meridian 14 and the 2MASS Point Source catalogs to select candidate nearby bright M dwarfs distributed over ~ 25,000 deg^2. Here, we present reconnaissance low-resolution optical spectra for 27 candidates that were observed with the Intermediate Dispersion Spectrograph at the 2.5m Isaac ...
Aberasturi, M., Caballero, J. A., Montesinos, B., Gálvez-Ortiz, M. C., Solano, E., Martín, E. L.   +5 more
openaire   +2 more sources