TY - JOUR
T1 - Formation of wormholes by dark matter in the galaxy Dragonfly 44
AU - Islam, Sayeedul
AU - Rahaman, Farook
AU - Övgün, Ali
AU - Halilsoy, Mustafa
N1 - Funding Information:
This work was supported by the Chilean FONDECYT Grant No. 3170035 (AÖ). AÖ is grateful to the CERN theory (CERN-TH) division for hospitality where part of this work was done. FR would like to thank the authorities of the Inter-University Centre for Astronomy and Astrophysics, Pune, India, for providing research facilities. FR and SI are also grateful to DST-SERB and DST-INSPIRE, Govt. of India, for financial support respectively.
Publisher Copyright:
© 2019 Published by NRC Research Press.
PY - 2019
Y1 - 2019
N2 - Recently, the ultra-diffuse galaxy (UDG) Dragonfly 44 in the Coma Cluster was observed and observations of the rotational speed suggest that its mass is almost the same as the mass of the Milky Way. On the other hand, interestingly, the galaxy emits only 1% of the light emitted by the Milky Way. Thus, astronomers reported that Dragonfly 44 may be made almost entirely of dark matter. In this study we try to determine whether or not the dark matter that constitutes Dragonfly 44 can form a wormhole. Two possible dark matter profiles are used, namely, UDG King's model and generalized Navarro-Frenk-White (NFW) dark matter profile. We have shown that King's model dark matter profile does not manage to provide a wormhole whereas the generalized NFW dark matter profile manages to find wormholes.
AB - Recently, the ultra-diffuse galaxy (UDG) Dragonfly 44 in the Coma Cluster was observed and observations of the rotational speed suggest that its mass is almost the same as the mass of the Milky Way. On the other hand, interestingly, the galaxy emits only 1% of the light emitted by the Milky Way. Thus, astronomers reported that Dragonfly 44 may be made almost entirely of dark matter. In this study we try to determine whether or not the dark matter that constitutes Dragonfly 44 can form a wormhole. Two possible dark matter profiles are used, namely, UDG King's model and generalized Navarro-Frenk-White (NFW) dark matter profile. We have shown that King's model dark matter profile does not manage to provide a wormhole whereas the generalized NFW dark matter profile manages to find wormholes.
KW - Dark matter
KW - Dragonfly 44
KW - NFW dark matter profile
KW - Ultra-diffuse galaxy
KW - Wormhole
UR - http://www.scopus.com/inward/record.url?scp=85062773720&partnerID=8YFLogxK
U2 - 10.1139/cjp-2017-0864
DO - 10.1139/cjp-2017-0864
M3 - Article
AN - SCOPUS:85062773720
VL - 97
SP - 241
EP - 247
JO - Canadian Journal of Physics
JF - Canadian Journal of Physics
SN - 0008-4204
IS - 3
ER -