Results 31 to 40 of about 221,645 (319)

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

Astronomy
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, Silas G. T. Laycock, Breanna A. Binder, Dimitris M. Christodoulou   +3 more
doaj   +1 more source

Automatic Classification of Variable Stars in Catalogs with missing data

, 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

The MUSE-Wide Survey: Survey Description and First Data Release [PDF]

, 2019
We present the MUSE-Wide survey, a blind, 3D spectroscopic survey in the CANDELS/GOODS-S and CANDELS/COSMOS regions. Each MUSE-Wide pointing has a depth of 1 hour and hence targets more extreme and more luminous objects over 10 times the area of the MUSE-
Bacon, R., Boogaard, L., Brinchman, J., Caruana, J., Diener, C., Enke, H., Herenz, E. C., Kerutt, J., Klar, J., Krajnović, D., Maseda, M., Nanayakkara, T., Richard, J., Saust, R., Schmidt, K. B., Steinmetz, M., Urrutia, T., Weilbacher, P. M., Werhahn, M., Wisotzki, L.   +19 more
core   +4 more sources

Catalogs of Compact Groups of Galaxies from the Enhanced SDSS DR12

, 2016
We apply a friends-of-friends algorithm to an enhanced SDSS DR12 spectroscopic catalog including redshift from literature to construct a catalog of $1588~N\ge3$ compact groups of galaxies containing 5179 member galaxies and covering the redshift range $0.
Geller, Margaret J., Hwang, Ho Seong, Lee, Myung Gyoon, Sohn, Jubee, Zahid, H. Jabran   +4 more
core   +1 more source

A catalog of Nearby Poor Clusters of Galaxies [PDF]

, 1999
A catalog of 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of $\rm -3^{\circ}$ declination is presented. The poor clusters, called WBL clusters, were identified as concentrations of 3 or more galaxies with ...
Bahcall J. N., Bhavsar S. P., Bhavsar S. P., Christen Loken, Jack O. Burns, Mark Bliton, Michael J. Ledlow, Patricia Bornmann, Richard A. White, Suketu P. Bhavsar   +9 more
core   +2 more sources

Catalog design, catalog maintenance, catalog governance

Library Collections, Acquisitions, & Technical Services, 2000
The design of library catalogs and the maintenance of their contents equals catalog governance, that is, professional responsibility for the catalog. The design of library catalogs and their contents are an example of the standards that are the hallmark of modern librarianship.
openaire   +2 more sources

Consolidation of the Gaia catalogue with Chinese Space Station Telescope astrometry

Frontiers in Astronomy and Space Sciences, 2022
The issue of preservation and improvement of the Gaia catalogue throughout the next few decades is addressed. The goal of this study is to evaluate the feasibility of astrometric parameter update, for objects already in the catalogue, by inclusion of new
M. Gai, A. Vecchiato, D. Busonero, A. Riva, R. Cancelliere, M. Lattanzi, Z. Qi   +6 more
doaj   +1 more source

Groups of Galaxies in the Two Micron All-Sky Redshift Survey [PDF]

, 2006
We present the results of applying a percolation algorithm to the initial release of the Two Micron All-Sky Survey Extended Source Catalog, using subsequently measured redshifts for almost all of the galaxies with K < 11.25 mag.
Aidan C. Crook, John P. Huchra, Karen L. Masters, Lucas M. Macri, Nathalie Martimbeau, Nolthenius R., Tom Jarrett, Weinmann S. M.   +7 more
core   +2 more sources

Evaluation of the b Maps on the Faults of the Major (M > 7) South California Earthquakes

Earth and Space Science
We use the Godano et al. (2022, https://doi.org/10.1029/2021ea002205) method for evaluating the b maps of the faults associated with the largest earthquakes M ≥ 7.0 that occurred in California.
V. Convertito, A. Tramelli, C. Godano
doaj   +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]

, 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, Amanullah, Blake, Blanton, Blanton, Cabre, Chia-Hsun Chuang, Cimatti, Coles, Crocce, Eisenstein, Eisenstein, Eisenstein, Fioc, Fukugita, Gunn, Gunn, Hu, Hütsi, Kaiser, Kazin, Komatsu, Landy, Lewis, Lewis, Maddumage Don P. Hemantha, Martinez, Matsubara, Mortonson, Okumura, Padmanabhan, Penzias, Percival, Percival, Percival, Perlmutter, Reid, Riess, Sanchez, Sanchez, Seo, Serra, Smith, Strauss, Tegmark, Wang, Wang, Wang, Wang, Yun Wang, Zehavi, Zhao   +51 more
core   +1 more source