69 citations · 258 across the 10 of their papers we have counts for
10 papers
Morphology, color-magnitude and scaling relations of galaxies in Abell 426
Sheeraz A. Khanday, Kanak Saha, Nasser Iqbal +2
We present photometric properties of 183 member galaxies in the Abell 426 cluster using the Sloan Digital Sky Survey (SDSS) imaging and spectroscopic observation. Detailed morpholo…
Global analysis of luminosity- and colour-dependent galaxy clustering in the Sloan Digital Sky Survey
Niladri Paul, Isha Pahwa, Aseem Paranjape
We present a Halo Occupation Distribution (HOD) analysis of the luminosity- and colour-dependent galaxy clustering in the Sloan Digital Sky Survey. A novelty of our technique is th…
Structural properties of faint low surface brightness galaxies
Isha Pahwa, Kanak Saha
We study the structural properties of Low Surface Brightness galaxies (LSB) using a sample of 263 galaxies observed by the Green Bank Telescope (Schneider et al 1992). We perform 2…
Analytical halo model of galactic conformity
Isha Pahwa, Aseem Paranjape
We present a fully analytical halo model of colour-dependent clustering that incorporates the effects of galactic conformity in a halo occupation distribution (HOD) framework. The…
The alignment of galaxy spin with the shear field in observations
Isha Pahwa, Noam I. Libeskind, Elmo Tempel +6
Tidal torque theory suggests that galaxies gain angular momentum in the linear stage of structure formation. Such a theory predicts alignments between the spin of haloes and tidal…
Correlating galaxy colour and halo concentration: A tunable Halo Model of galactic conformity
Aseem Paranjape, Katarina Kovac, William G. Hartley +1
We extend the Halo Occupation Distribution (HOD) framework to generate mock galaxy catalogs exhibiting varying levels of "galactic conformity", which has emerged as a potentially p…
Shear Dynamics in Higher Dimensional FLRW Cosmology
Isha Pahwa, Hemwati Nandan, Umananda Dev Goswami
We study the shear dynamics of higher dimensional Friedmann-Lemaître-Robertson-Walker (FLRW) cosmology by considering a non-perfect fluid which exerts different pressure in the nor…
Cosmological Magnetogenesis From Extra-dimensional Gauss Bonnet Gravity
Kumar Atmjeet, Isha Pahwa, T. R. Seshadri +1
Generation of primordial magnetic fields during inflation typically requires the breaking of conformal invariance of the Electromagnetic action. In this paper this has been achieve…
Inflation in Higher Dimensional Gauss-Bonnet Cosmology
Isha Pahwa, Debajyoti Choudhury, T. R. Seshadri
A Gauss-Bonnet term naturally appears in the action for gravity when one considers the existence of space time with dimensions more than 1+3. A variety of inflationary models can b…
Late-time acceleration in Higher Dimensional Cosmology
Isha Pahwa, Debajyoti Choudhury, T. R. Seshadri
We investigate late time acceleration of the universe in higher dimensional cosmology. The content in the universe is assumed to exert pressure which is different in the normal and…