Article ID 0064 December 2018

Non-singular coordinates of some Kiselev space-times

S. M. JAWWAD RIAZ

Article ID 0065 December 2018

Long-term ultraviolet variability of Seyfert galaxies

N. SUKANYA C. S. STALIN P. JOSEPH S. RAKSHIT D. PRAVEEN R. DAMLE

Article ID 0066 December 2018

Application of Chebyshev collocation method for relocating of spacecrafts in Hill’s frame

JAI KUMAR

Article ID 0067 December 2018

Effect of rotation and self-gravity on the propagation of MHD waves

DANIEL ATNAFU CHEKOLE GEBRETSADIKAN WOLDMHRET BAHTA

Article ID 0068 December 2018

Polarization and QPOs from jets in black hole systems

A. MANGALAM

Article ID 0069 December 2018

Existence of wormhole solutions and energy conditions in $f(R,T)$ gravity

M. Z. BHATTI Z. YOUSAF M. ILYAS

Article ID 0070 December 2018

A new technique for understanding magnetosphere–ionosphere coupling using directional derivatives of SuperDARN convection flow

S. N. M. AZIZUL HOQUE FRANCES FENRICH

Article ID 0071 December 2018

Editorial

Ram Sagar

Article ID 0072 December 2018

Lissajous motion near Lagrangian point $L_2$ in radial solar sail

ARUN KUMAR YADAV BADAM SINGH KUSHVAH UDAY DOLAS

Article ID 0073 December 2018

Interstellar communication: The colors of optical SETI

MICHAEL HIPPKE

Article ID 0074 December 2018

Interstellar communication: Short pulse duration limits of optical SETI

MICHAEL HIPPKE

Article ID 0075 December 2018 Review Article

Observations and physics of prompt emission of gamma ray bursts

SHABNAM I YYANI