Date of the discovery: 11 December 2014
Short Description: Spiral Galaxies are not supposed to have large radio jets. But J1649+2635 does not seem to care much about this rule. It is the fourth spiral galaxy with large radio jets discovered. By using the catalog of classifications into spiral galaxies and ellipticals by volunteers, the researchers were able to find this galaxy. They first produced a “clean” sample of spirals, where 95% volunteers voted that they found a spiral and then cross-matched it with the NRAO VLA Sky Survey. And indeed J1649+2635 is a spiral DRAGN (Double-lobed Radio sources Associated with Galactic Nuclei). This demonstrates how the catalogs by volunteers can used for discoveries. The researchers hope to find more spiral DRAGN with Radio Galaxy Zoo in the future. See also: Speca.
Volunteer(s): Volunteers of the galaxy zoo project
Researchers in the discovery paper: Minnie Y. Mao, Frazer Owen, Ryan Duffin, Bill Keel, Mark Lacy, Emmanuel Momjian, Glenn Morrison, Tony Mroczkowski, Susan Neff, Ray P. Norris, Henrique Schmitt, Vicki Toy and Sylvain Veilleux
Link to paper in ADS: https://ui.adsabs.harvard.edu/abs/2015MNRAS.446.4176M/abstract
Telescopes involved: Very Large Array
Figure 1 of the paper, showing the spiral galaxy on the left (SDSS) and the radio contours on the right overlayed over the SDSS image.
Credit for the header image: Mao et al., NRAO/AUI/NSF, Sloan Digital Sky Survey
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