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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 720279.0, MPI für Astronomie / Publikationen_mpia
Multiple AGN in the crowded field of the compact group SDSS J0959+1259
Authors:De Rosa, A.; Bianchi, S.; Bogdanović, T.; Decarli, R.; Herrero-Illana, R.; Husemann, B.; Komossa, S.; Kun, E.; Loiseau, N.; Paragi, Z.; Perez-Torres, M.; Piconcelli, E.; Schawinski, K.; Vignali, C.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Monthly Notices of the Royal Astronomical Society
Volume:453
Issue / Number:1
Start Page:214
End Page:221
Audience:Not Specified
Abstract / Description:We present a multiwavelength study of a newly discovered compact group (CG), SDSS J0959+1259, based data from XMM-Newton, Sloan Digital Sky Survey (SDSS) and the Calar Alto optical imager BUSCA. With a maximum velocity offset of 500 km s-1, a mean redshift of 0.035, and a mean spatial extension of 480 kpc, this CG is exceptional in having the highest concentration of nuclear activity in the local Universe, established with a sensitivity limit LX > 4 × 1040 erg s-1 in 2-10 keV band and R-band magnitude MR < -19. The group is composed of two type-2 Seyferts, one type-1 Seyfert, two LINERs and three star-forming galaxies. Given the high X-ray luminosity of LINERs which reaches ˜1041 erg s-1, it is likely that they are also accretion driven, bringing the number of active nuclei in this group to five out of eight (AGN fraction of 60 per cent). The distorted shape of one member of the
Free Keywords:galaxies: active; galaxies: interactions; galaxies: Seyfert; X-rays: galaxies
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0035-8711 %R 10.1093/mnras/stv1623
URL:http://cdsads.u-strasbg.fr/abs/2015MNRAS.453..214D
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