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Photometric study of contact binary star MW And
Ahmed Waqas Zubairi, Shaukat Goderya, Fazeel Mahmood Khan
The Tarleton Observatory's 0.8m telescope and CCD photometer were used to obtain 1298 observations of the short period eclipsing binary star MW And. The observations were obtained…
Dynamical Evolution and Merger Time-scales of LISA Massive Black Hole Binaries in Disk Galaxy Mergers
Fazeel M. Khan, Pedro R. Capelo, Lucio Mayer +1
The Laser Interferometer Space Antenna (LISA) will detect gravitational-wave (GW) signals from merging supermassive black holes (BHs) with masses below ~M. It is th…
DLA and sub-DLA metallicity evolution: A case study of absorbers towards Q0338-0005
Waqas Bashir, Tayyaba Zafar, Fazeel M. Khan +1
The damped and sub-damped Lyman alpha systems (DLAs and sub-DLAs) traced in absorption against bright background quasars represent the main reserve of neutral hydrogen at high reds…
The Stellar Orbital Structure in Axisymmetric Galaxy Models with Supermassive Black Hole Binaries
Baile Li, Kelly Holley-Bockelmann, Fazeel Mahmood Khan
It has been well-established that particular centrophilic orbital families in non-spherical galaxies can, in principle, drive a black hole binary to shrink its orbit through three-…
Gravitational Wave Driven Mergers and Coalescence Time of Supermassive Black Holes
Fazeel Mahmood Khan, Peter Berczik, Andreas Just
The evolution of Supermassive Black Holes (SMBHs) initially embedded in the centres of merging galaxies realised with a stellar mass function (SMF) is studied from the onset of gal…