  The concept of boson stars (BSs) was first introduced by Kaup and
Ruffini-Bonazzola in the 1960s. Following this idea, we investigate an effect
of self-interacting asymmetric bosonic dark matter (DM) according to Colpi et
al. model for BSs (1986) on different observable properties of neutron stars
(NSs). In this paper, the bosonic DM and baryonic matter (BM) are mixed
together and interact only through gravitational force. The presence of DM as a
core of a compact star or as an extended halo around it is examined by applying
different boson masses and DM fractions for a fixed coupling constant. The
impact of DM core/halo formations on a DM admixed NS properties is probed
through the maximum mass and tidal deformability of NSs. Thanks to the recent
detection of Gravitational-Waves (GWs) and the latest X-ray observations, the
DM admixed NS's features are compared to LIGO/Virgo and NICER results.
