The host galaxy of the BL Lacertae object 1ES 0647+250 and its imaging redshift

: Kotilainen JK, Hyvonen T, Falomo R, Treves A, Uslenghi M

: M Walmsley

Publisher: EDP SCIENCES S A

: 2011

: Astronomy and Astrophysics

: Astronomy & Astrophysics

: ASTRONOMY & ASTROPHYSICS

: ASTRON ASTROPHYS

: ARTN L2

: 534

: 5

: 0004-6361

DOI: https://doi.org/10.1051/0004-6361/201117800

: http://dx.doi.org/10.1038/nature10611

Conclusions. We encourage imaging searches in the near-infrared, even with moderately sized telescopes, of the host galaxies of BL Lac objects at unknown redshift, as well as optical spectroscopy studies of 1ES 0647+250 with large telescopes to determine its spectroscopic redshift.