61 citations · 263 across the 23 of their papers we have counts for
7 papers · 1 filter
FNet II: Spectral Classification of Quasars, Galaxies, Stars, and broad absorption line (BAL) Quasars
R. Moradi, F. Rastegarnia, Y. Wang +1
In this work, we enhance the FNet, a 1-dimensional convolutional neural network (CNN) with a residual neural network (ResNet) architecture, to perform spectral classification of qu…
The formation and evolution of Andromeda IX
Hedieh Abdollahi, Atefeh Javadi, Mohammad Taghi Mirtorabi +7
Local Group (LG), the nearest and most complete galactic environment, provides valuable information on the formation and evolution of the Universe. Studying galaxies of different s…
The Isaac Newton Telescope Monitoring Survey of Local Group Dwarf Galaxies. VI. The Star Formation History and Dust Production in Andromeda IX
Hedieh Abdollahi, Atefeh Javadi, Mohammad Taghi Mirtorabi +9
We present a photometric study of the resolved stellar populations in And IX, the closest satellite to the M31, a metal-poor and low-mass dwarf spheroidal galaxy. We estimate a dis…
The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies--V. The star formation history of Sagittarius dwarf irregular galaxy derived from long period variable stars
Tahere Parto, Shahrzad Dehghani, Atefeh Javadi +7
We conducted an optical monitoring survey of the Sagittarius dwarf irregular galaxy (SagDIG) during the period of June 2016 -- October 2017, using the 2.5-m Isaac Newton Telescope…
INT monitoring survey of Local Group dwarf galaxies: star formation history and chemical enrichment
Tahere Parto, Shahrzad Dehghani, Atefeh Javadi +12
The Local Group (LG) hosts many dwarf galaxies with diverse physical characteristics in terms of morphology, mass, star formation, and metallicity. To this end, LG can offer a uniq…
Local stability criterion for self-gravitating disks in modified gravity
Asiyeh Habibi, Mohammad Taghi Mirtorabi, Mahmood Roshan
We study local stability of self-gravitating fluid and stellar disk in the context of modified gravity theories which predict a Yukawa-like term in the gravitational potential of a…
Infrared Survey of Pulsating Giant Stars in the Spiral Galaxy M33: Dust Production, Star Formation History, and Galactic Structure
Atefeh Javadi, Jacco Th. van Loon, Mohammad Taghi Mirtorabi
We introduce a near-IR monitoring campaign of the Local Group spiral galaxy M33, carried out with the UK IR Telescope (UKIRT). The pulsating giant stars are identified and their di…