Results 41 to 50 of about 296,673 (314)

catsHTM: A Tool for Fast Accessing and Cross-matching Large Astronomical Catalogs [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2018
Fast access to large catalogs is required for some astronomical applications. Here we introduce the catsHTM tool, consisting of several large catalogs reformatted into HDF5-based file format, which can be downloaded and used locally. To allow fast access,
M. Soumagnac, E. Ofek
semanticscholar   +1 more source

The WISE AGN Catalog [PDF]

open access: yes, 2017
We present two large catalogs of AGN candidates identified across ~75% of the sky from the Wide-field Infrared Survey Explorer's AllWISE Data Release. Both catalogs, some of the largest such catalogs published to date, are selected purely on the basis of
Assef, R. J.   +5 more
core   +3 more sources

Making Siberian Turkic Printed Collections Visible

open access: yesБиблиосфера, 2022
In the age of big data, small collections are often overlooked. Too numerically few to cause waves, the issues and problems that affect them are rarely addressed by cataloguing institutions. In the present paper, the author focuses on one such collection
M. J. Erdman
doaj   +1 more source

CANDELS Multi-wavelength Catalogs: Source Identification and Photometry in the CANDELS Extended Groth Strip [PDF]

open access: yes, 2017
We present a 0.4–8 μm multi-wavelength photometric catalog in the Extended Groth Strip (EGS) field. This catalog is built on the Hubble Space Telescope (HST) WFC3 and ACS data from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey ...
M. Stefanon   +41 more
semanticscholar   +1 more source

Spitzer Matching Survey of the UltraVISTA Ultra-deep Stripes (SMUVS): Full-mission IRAC Mosaics and Catalogs [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
This paper describes new deep 3.6 and 4.5 μm imaging of three UltraVISTA near-infrared survey stripes within the COSMOS field. The observations were carried out with Spitzer’s Infrared Array Camera (IRAC) for the Spitzer Matching Survey of the UltraVISTA
M. Ashby   +26 more
semanticscholar   +1 more source

A Robust Distance Measurement and Dark Energy Constraints from the Spherically-Averaged Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies [PDF]

open access: yes, 2012
We measure the effective distance to z=0.35, D_V(0.35), from the overall shape of the spherically-averaged two-point correlation function of the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) luminous red galaxy (LRG) sample.
Abazajian   +51 more
core   +1 more source

Automatic Classification of Variable Stars in Catalogs with missing data

open access: yes, 2013
We present an automatic classification method for astronomical catalogs with missing data. We use Bayesian networks, a probabilistic graphical model, that allows us to perform inference to pre- dict missing values given observed data and dependency ...
Pichara, Karim, Protopapas, Pavlos
core   +1 more source

Chandra Observations of the X-Ray Binary Population in the Field of the Dwarf Galaxy IC 10

open access: yesAstronomy
IC 10 is a dwarf galaxy in Cassiopeia, located at a distance of 660 kpc, and hosts a young stellar population, a large number of Wolf–Rayet stars, and a large number of massive stars in general.
Sayantan Bhattacharya   +3 more
doaj   +1 more source

Russian Virtual Observatory: Data Sources

open access: yesOpen Astronomy, 2016
The purpose of this review is to analyze main directions of creation and functioning of major data sources developed by Russian astronomers or with their participation and to compare them with the worldwide trends in these fields. We discuss astronomical
Malkov O.   +12 more
doaj   +1 more source

The Two-Point Angular Correlation Function and BATSE Sky Exposure [PDF]

open access: yes, 1997
The Two-Point Angular Correlation Function is a standard analysis tool used to study angular anisotropies. Since BATSE's sky exposure (the angular sampling of gamma-ray bursts) is anisotropic, the TPACF should at some point identify anisotropies in BATSE
Chen, Xiaoling, Hakkila, Jon
core   +3 more sources

Home - About - Disclaimer - Privacy