July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

A Uniformly Selected, All-Sky Optical AGN Catalog for UHECR Correlation

Jul 31, 2015, 11:30 AM
Yangtze 2 (World Forum)

Yangtze 2

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution CR-TH Parallel CR05 TH/aniso


Dr Yanping Chen (NYU Abu Dhabi)


Studies discerning whether there is a significant correlation between UHECR arrival directions and optical AGN are hampered by the lack of a uniformly selected and complete all-sky AGN catalog. To remedy this, we are preparing such a catalog based on the 2MASS Redshift Survey (2MRS), a spectroscopic sample of ~45,000 galaxies complete to a K magnitude of 11.75 over 91% of the sky. We have analyzed the available optical spectra of these 2MRS galaxies (~80%), in order to identify the AGN amongst them with uniform criteria. A first-stage release of the AGN catalog for the Southern hemisphere using the 6dF Galaxy Survey spectra (100% complete outside the Galactic plane), will be available before the ICRC. Providing a comparably uniform and complete catalog for the Northern sky is more challenging because the spectra for the Northern galaxies were taken with different instruments; its timescale and expected completeness will be reported.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 993

Primary author

Ingyin Zaw (NYU Abu Dhabi)


Glennys Farrar (NYU) Dr Yanping Chen (NYU Abu Dhabi)

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