Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Dan Andreescu"'
Autor:
Jan Vandenberg, Alexander S. Szalay, Chris Lintott, Kevin Schawinski, Dan Andreescu, M. Jordan Raddick, Sukyoung K. Yi, Robert C. Nichol, Kate Land, Phil Murray, Steven P. Bamford, Daniel Thomas, Sugata Kaviraj, Sadegh Khochfar, Anze Slosar, Marc Sarzi
Publikováno v:
Schawinski, K, Lintott, C J, Thomas, D, Sarzi, M, Andreescu, D, Bamford, S P, Kaviraj, S, Khochfar, S, Land, K, Murray, P, Nichol, R C, Raddick, M J, Slosar, A, Szalay, A, Vandenberg, J & Yi, S K 2009, ' Galaxy Zoo : a sample of blue early-type galaxies at low redshift ', Monthly Notices of the Royal Astronomical Society, vol. 396, no. 2, pp. 818-829 . https://doi.org/10.1111/j.1365-2966.2009.14793.x
We report the discovery of a population of nearby, blue early-type galaxies with high star formation rates (0.5 < SFR < 50 Msun/yr). They are identified by their visual morphology as provided by Galaxy Zoo for SDSS DR6 and their u-r colour. We select
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22c79f82214b0081b53f99813e59f848
https://ora.ox.ac.uk/objects/uuid:327368eb-d119-452e-b683-4820297bf5b7
https://ora.ox.ac.uk/objects/uuid:327368eb-d119-452e-b683-4820297bf5b7
Autor:
Kate Land, Alexander S. Szalay, Anÿze Slosar, Chris Lintott, M. Jordan Raddick, Jan Vandenberg, Steven P. Bamford, Phil Murray, Robert C. Nichol, Daniel Thomas, Dan Andreescu, Kevin Schawinski
Publikováno v:
Slosar, A, Land, K, Bamford, S P, Lintott, C J, Andreescu, D, Murray, P, Nichol, B, Raddick, M J, Schawinski, K, Szalay, A S, Thomas, D & Vandenberg, J 2009, ' Galaxy Zoo : chiral correlation function of galaxy spins ', Monthly Notices of the Royal Astronomical Society, vol. 392, no. 3, pp. 1225-1232 . https://doi.org/10.1111/j.1365-2966.2008.14127.x
Galaxy Zoo is the first study of nearby galaxies that contains reliable information about the spiral sense of rotation of galaxy arms for a sizeable number of galaxies. We measure the correlation function of spin chirality (the sense in which galaxie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5868f80633aa5e0d009626638ce52825
https://ora.ox.ac.uk/objects/uuid:73c2a1a0-3d2e-4182-824d-6ac655f38ae2
https://ora.ox.ac.uk/objects/uuid:73c2a1a0-3d2e-4182-824d-6ac655f38ae2
Autor:
Alexander S. Szalay, Steven P. Bamford, D. W. Darg, Phil Murray, Daniel Thomas, Jan Vandenberg, M. J. Raddick, Anze Slosar, Joseph Silk, Chris Lintott, Sugata Kaviraj, Robert C. Nichol, Marc Sarzi, Kevin Schawinski, Dan Andreescu, Richard Proctor
Publikováno v:
Darg, D W, Kaviraj, S, Lintott, C J, Schawinski, K, Sarzi, M, Bamford, S P, Silk, J, Proctor, R, Andreescu, D, Murray, P, Nichol, R C, Raddick, M J, Slosar, A, Szalay, A S, Thomas, D & Vandenberg, J 2010, ' Galaxy Zoo : the fraction of merging galaxies in the SDSS and their morphologies ', Monthly Notices of the Royal Astronomical Society, vol. 401, no. 2, pp. 1043-1056 . https://doi.org/10.1111/j.1365-2966.2009.15686.x
We present the largest, most homogeneous catalogue of merging galaxies in the nearby universe obtained through the Galaxy Zoo project - an interface on the world-wide web enabling large-scale morphological classification of galaxies through visual in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a315162f7ec665d86e11b80db97475f7
https://doi.org/10.1111/j.1365-2966.2009.15686.x
https://doi.org/10.1111/j.1365-2966.2009.15686.x
Autor:
Robert C. Nichol, M. Jordan Raddick, Karen L. Masters, Kevin Schawinski, Dan Andreescu, Moein Mosleh, Alexander S. Szalay, A. Kathy Romer, Steven P. Bamford, I Doyle, Jan Vandenberg, Ben Crowcroft, Heather Campbell, Chris Lintott, Anÿze Slosar, Edward M. Edmondson, Phil Murray
Publikováno v:
Masters, K, Mosleh, M, Romer, A K, Nichol, B, Bamford, S P, Schawinski, K, Lintott, C J, Andreescu, D, Campbell, H, Crowcroft, B, Doyle, I, Edmondson, E M, Murray, P, Raddick, M J, Slosar, A S, Szalay, A & Vandenberg, J 2010, ' Galaxy Zoo : passive red spirals ', Monthly Notices of the Royal Astronomical Society, vol. 405, no. 2, pp. 783-799 . https://doi.org/10.1111/j.1365-2966.2010.16503.x
We study the spectroscopic properties and environments of red spiral galaxies found by the Galaxy Zoo project. By carefully selecting face-on, disk dominated spirals we construct a sample of truly passive disks (not dust reddened, nor dominated by ol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::278ca124b00552b92499ef32c6aebd01
https://ora.ox.ac.uk/objects/uuid:0978801d-80b4-4157-a071-c6d79c406271
https://ora.ox.ac.uk/objects/uuid:0978801d-80b4-4157-a071-c6d79c406271
Autor:
Steven P. Bamford, Sugata Kaviraj, Alexander S. Szalay, Chris Lintott, Daniel Thomas, O. Ivy Wong, Kevin Schawinski, M. J. Raddick, William C. Keel, Jan Vandenberg, P. G. Murray, Dan Andreescu, Daniel Darg, Karen L. Masters, Robert C. Nichol
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 420:1684-1692
We present a study of local post-starburst galaxies (PSGs) using the photometric and spectroscopic observations from the Sloan Digital Sky Survey (SDSS) and the results from the Galaxy Zoo project. We find that the majority of our local PSG populatio
Autor:
Jan Vandenberg, Chris Lintott, Robert C. Nichol, Karen L. Masters, Kevin Schawinski, Edd Edmondson, Anze Slosar, M. Jordan Raddick, Dan Andreescu, Kate Land, Phil Murray, Alexander S. Szalay, Steven P. Bamford, Daniel Thomas
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 410:166-178
Morphology is a powerful indicator of a galaxy's dynamical and merger history. It is strongly correlated with many physical parameters, including mass, star formation history and the distribution of mass. The Galaxy Zoo project collected simple morph
Autor:
Anze Slosar, Steven P. Bamford, Daniel Thomas, Alexander S. Szalay, William C. Keel, Phil Murray, Jan Vandenberg, Chris Lintott, Edward M. Edmondson, Kevin Schawinski, M. Jordan Raddick, Robert C. Nichol, Moein Mosleh, Dan Andreescu, Karen L. Masters
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 404:792-810
We investigate the effect of dust on spiral galaxies by measuring the inclination-dependence of optical colours for 24,276 well-resolved SDSS galaxies visually classified in Galaxy Zoo. We find clear trends of reddening with inclination which imply a
Autor:
Alexander S. Szalay, Phil Murray, Robert C. Nichol, Chris Lintott, Dan Andreescu, Jan Vandenberg, Kate Land, Raul Jimenez, Licia Verde, Steven P. Bamford, M. Jordan Raddick, Daniel Thomas, Kevin Schawinski, Anze Slosar
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 404:975-980
We report on the finding of a correlation between galaxies' past star formation activity and the degree to which neighbouring galaxies rotation axes are aligned. This is obtained by cross-correlating star formation histories, derived with MOPED, and
Autor:
Anze Slosar, Manda Banerji, Ofer Lahav, Jan Vandenberg, Kevin Schawinski, Steven P. Bamford, Filipe B. Abdalla, Daniel Thomas, M. Jordan Raddick, Dan Andreescu, Alexander S. Szalay, Chris Lintott, Phil Murray
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 406:342-353
We present morphological classifications obtained using machine learning for objects in SDSS DR6 that have been classified by Galaxy Zoo into three classes, namely early types, spirals and point sources/artifacts. An artificial neural network is trai
Autor:
Karen L. Masters, Steven P. Bamford, Chris Lintott, Robert C. Nichol, Anže Slosar, Carolin N. Cardamone, Sugata Kaviraj, C. Megan Urry, Dan Andreescu, Phil Murray, M. Jordan Raddick, Nicholas P. Ross, Ezequiel Treister, Jan Vandenberg, Shanil N. Virani, Marc Sarzi, Daniel Thomas, William C. Keel, Alexander S. Szalay, Kevin Schawinski, Paolo De Coppi
Publikováno v:
Schawinski, K, Urry, C M, Virani, S, Coppi, P, Bamford, S P, Treister, E, Lintott, C J, Sarzi, M, Keel, W C, Kaviraj, S, Cardamone, C N, Masters, K L, Ross, N P, Andreescu, D, Murray, P, Nichol, R C, Raddick, M J, Slosar, A, Szalay, A S, Thomas, D & Vandenberg, J 2010, ' Galaxy Zoo : the fundamentally different co-evolution of supermassive black holes and their early-and late-type host galaxies ', The Astrophysical Journal, vol. 711, no. 1, pp. 284-302 . https://doi.org/10.1088/0004-637X/711/1/284
We use data from the Sloan Digital Sky Survey and visual classifications of morphology from the Galaxy Zoo project to study black hole growth in the nearby Universe (z < 0.05) and to break down the AGN host galaxy population by color, stellar mass an