Galaxy Zoo : 'Hanny's Voorwerp', a quasar light echo?

Galaxy Zoo : 'Hanny's Voorwerp', a quasar light echo?

We report the discovery of an unusual object near the spiral galaxy IC 2497, discovered by visual inspection of the Sloan Digital Sky Survey (SDSS) as part of the Galaxy Zoo project. The object, known as Hanny's Voorwerp, is bright in the SDSS g band due to unusually strong OIII 4959-5007 emiss...

Fuld beskrivelse

Bibliografiske detaljer
Main Authors:	Lintott, C, Schawinski, K, Keel, W, Arkel, H, Bennert, N, Edmondson, E, Thomas, D, Smith, D, Herbert, P, Jarvis, M, Virani, S, Andreescu, D, Bamford, S, Land, K, Murray, P, Nichol, R, Raddick, J, Slosar, A, Szalay, A, Vandenberg, J
Format:	Journal article
Sprog:	English
Udgivet:	2009

Lignende værker

Probing quasar shutdown timescales with Hanny's Voorwerp
af: Evans, D, et al.
Udgivet: (2012)

The History and Environment of a Faded Quasar: Hubble Space Telescope observations of Hanny's Voorwerp and IC 2497
af: Keel, W, et al.
Udgivet: (2012)

Revealing Hanny's Voorwerp: radio observations of IC 2497
af: Jozsa, G, et al.
Udgivet: (2009)

Galaxy Zoo: Dust in Spirals
af: Masters, K, et al.
Udgivet: (2010)

Galaxy Zoo: Chiral correlation function of galaxy spins
af: Slosar, A, et al.
Udgivet: (2008)

Galaxy Zoo: dust in spiral galaxies star
af: Masters, K, et al.
Udgivet: (2010)

Galaxy Zoo: Disentangling the Environmental Dependence of Morphology and Colour
af: Skibba, R, et al.
Udgivet: (2008)

Galaxy Zoo 1 : Data Release of Morphological Classifications for nearly 900,000 galaxies
af: Lintott, C, et al.
Udgivet: (2010)

Galaxy Zoo: The large-scale spin statistics of spiral galaxies in the Sloan Digital Sky Survey
af: Land, K, et al.
Udgivet: (2008)

Galaxy Zoo: morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
af: Lintott, C, et al.
Udgivet: (2008)

Galaxy Zoo: the dependence of morphology and colour on environment
af: Bamford, S, et al.
Udgivet: (2008)

Galaxy Zoo: the dependence of morphology and colour on environment
af: Bamford, S, et al.
Udgivet: (2009)

Extended X-ray emission in the IC 2497 - Hanny's Voorwerp system: energy injection in the gas around a fading AGN
af: Sartori, L, et al.
Udgivet: (2016)

Galaxy Zoo: A correlation between coherence of galaxy spin chirality and star formation efficiency
af: Jimenez, R, et al.
Udgivet: (2009)

Galaxy Zoo : Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
af: Lintott, C, et al.
Udgivet: (2008)

Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies
af: Cardamone, C, et al.
Udgivet: (2009)

Galaxy Zoo: A sample of blue early-type galaxies at low redshift
af: Schawinski, K, et al.
Udgivet: (2009)

Galaxy Zoo: Passive Red Spirals
af: Masters, K, et al.
Udgivet: (2009)

Galaxy Zoo: the fraction of merging galaxies in the SDSS and their morphologies
af: Darg, D, et al.
Udgivet: (2009)

Galaxy Zoo: The fraction of merging galaxies in the SDSS and their morphologies
af: Darg, D, et al.
Udgivet: (2010)

Galaxy Zoo: Reproducing Galaxy Morphologies Via Machine Learning
af: Banerji, M, et al.
Udgivet: (2009)

Galaxy Zoo: Building the low-mass end of the red sequence with local post-starburst galaxies
af: Wong, O, et al.
Udgivet: (2012)

Galaxy Zoo: The properties of merging galaxies in the nearby Universe - local environments, colours, masses, star-formation rates and AGN activity
af: Darg, D, et al.
Udgivet: (2009)

Galaxy Zoo: The properties of merging galaxies in the nearby Universe - Local environments, colours, masses, star formation rates and AGN activity
af: Darg, D, et al.
Udgivet: (2010)

Galaxy Zoo: building the low-mass end of the red sequence with local post-starburst galaxies
af: Wong, O, et al.
Udgivet: (2011)

Galaxy Zoo: building the low-mass end of the red sequence with local post-starburst galaxies
af: Wong, O, et al.
Udgivet: (2012)

Galaxy Zoo: The fundamentally different co-evolution of supermassive black holes and their early- and late-type host galaxies
af: Schawinski, K, et al.
Udgivet: (2010)

Galaxy Zoo: Bars in Disk Galaxies
af: Masters, K, et al.
Udgivet: (2010)

Galaxy Zoo: Exploring the Motivations of Citizen Science Volunteers
af: Raddick, M, et al.
Udgivet: (2009)

The Sudden Death of the Nearest Quasar
af: Schawinski, K, et al.
Udgivet: (2010)

Galaxy Zoo: Motivations of Citizen Scientists
af: Raddick, M, et al.
Udgivet: (2013)

The sudden death of the nearest quasar
af: Schawinski, K, et al.
Udgivet: (2010)

Galaxy Zoo: Morphological Classification and Citizen Science
af: Fortson, L, et al.
Udgivet: (2011)

Galaxy Zoo: The Environmental Dependence of Bars and Bulges in Disc Galaxies
af: Skibba, R, et al.
Udgivet: (2011)

Galaxy Zoo: The environmental dependence of bars and bulges in disc galaxies
af: Skibba, R, et al.
Udgivet: (2012)

Galaxy Zoo: Quantifying Morphological Indicators of Galaxy Interaction
af: Casteels, K, et al.
Udgivet: (2012)

Galaxy Zoo: Bar Lengths in Nearby Disk Galaxies
af: Hoyle, B, et al.
Udgivet: (2011)

Galaxy Zoo: bar lengths in local disc galaxies
af: Hoyle, B, et al.
Udgivet: (2011)

Galaxy Zoo: Multi-Mergers and the Millennium Simulation
af: Darg, D, et al.
Udgivet: (2010)

Galaxy Zoo 2: detailed morphological classifications for 304,122 galaxies from the Sloan Digital Sky Survey
af: Willett, K, et al.
Udgivet: (2013)