The BL-Lacertae gamma-ray blazar PKS 1424+240 associated with a group of galaxies at z = 0.6010

The BL-Lacertae gamma-ray blazar PKS 1424+240 associated with a group of galaxies at z = 0.6010

Context. PKS 1424+240 is a BL-Lac blazar with unknown redshift that was detected at high-energy gamma rays by Fermi-LAT with a hard spectrum. At very high energy (VHE), it was first detected by VERITAS and later confirmed by MAGIC. Its spectral energy distribution is highly attenuated at VHE gamma r...

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Veröffentlicht in:Astronomy and astrophysics (Berlin) 2016-05, Vol.589, p.A92
Hauptverfasser: Rovero, A. C., Muriel, H., Donzelli, C., Pichel, A.
Format: Artikel
Sprache:eng
Schlagworte:
BL Lacertae objects: individual: PKS 1424+240
Blazars
Catalogues
Galaxies
galaxies: distances and redshifts
galaxies: groups: general
Gamma rays
Photometry
Red shift
Searching
Spectral energy distribution
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Beschreibung
Zusammenfassung:Context. PKS 1424+240 is a BL-Lac blazar with unknown redshift that was detected at high-energy gamma rays by Fermi-LAT with a hard spectrum. At very high energy (VHE), it was first detected by VERITAS and later confirmed by MAGIC. Its spectral energy distribution is highly attenuated at VHE gamma rays, which is coherent with distant sources. Several estimations enabled the redshift to be constrained to the range 0.6
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201527778