Characterization of cast stainless steel weld pools by using ball indentation technique (2009)
Das, Goutam, Das, Mousumi, Sinha, S, Gupta, K K, Chakravarty, S, Ray, Ashok K
Ball indentation technique (BIT) was used to characterize two weld pools of cast stainless steel. Yield strength, ultimate tensile strength, strength coefficient, strain hardening exponent and...
Murthy, G V S, Ghosh, Sabita, Das, Mousumi, Das, Goutam, Ghosh, R N
Microstructure of a crystalline material is a key factor in its technological applications as it determines a wide variety of properties including mechanical strength, toughness, corrosion resistance...
Self-consistent triaxial de Zeeuw-Carollo Models (2007)
Thakur, Parijat, Jiang, Ing-Guey, Das, Mousumi, Chakraborty, D. K., Ann, H. B.
We use the usual method of Schwarzschild to construct self-consistent solutions for the triaxial de Zeeuw & Carollo (1996) models with central density cusps. ZC96 models are triaxial generalisations...
The AGN and gas disc in the low surface brightness galaxy PGC 045080 (2007)
Das, Mousumi, Kantharia, Nimisha G., Ramya, S., Prabhu, T.P., McGaugh, S.S., Vogel, S.N.
Restricted Access.
CO Detection and Millimeter Continuum Emission from Low Surface Brightness Galaxies (2006)
Das, Mousumi, O'Neil, Karen, Vogel, Stuart N., McGaugh, Stacy
We present BIMA and IRAM CO(1--0) observations of seven low surface brightness (LSB) galaxies, including three large spirals with faint disks but prominent bulges, and four relatively small LSB...
CO detection and millimeter continuum emission from low surface brightness galaxies (2006)
Das, Mousumi, O'Neil, Karen, Vogel, Stuart N., McGaugh, Stacy
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
Das, Mousumi, Ramasesha, S, Mazumdar, S
We investigate the possibility that high-energy singlet and triplet excited states with large electron-hole separations are generated in electron-hole recombination process, over and above the lowest...
Das, Mousumi, Vogel, Stuart, Kleijn, Gijs, O’Dea, Christopher, Baum, Stefi
Also archived in: arXiv: astro-ph/0505285 v1 13 May 2005
Das, Mousumi, Vogel, Stuart N., Kleijn, Gijs A. Verdoes, O'Dea, Christopher P., Baum, Stefi A.
We present BIMA 3 mm observations of the radio continuum source and the molecular gas disk in the radio loud Fanaroff & Riley Type I (FR I)galaxy NGC3801.We have detected a continuum source in the...
Das, Mousumi, Ramasesha, S, Mazumdar, S
We investigate the possibility that high-energy singlet and triplet excited states with large electron-hole separations are generated in electron-hole recombination process, over and above the lowest...
Das, Mousumi, Mazumdar, S., Ramasesha, S.
We extend our theory of electron--hole recombination in organic light emitting diodes to investigate the possibility that high energy singlet and triplet excited states with large electron--hole...
A family of triaxial modified Hubble mass models: effects of the additional radial functions (2004)
Das, Mousumi, Thakur, Parijat, Ann, H. B.
The projected properties of triaxial generalization of the modified Hubble mass models are studied. These models are constructed by adding the additional radial functions, each multiplied by a...
Jha, Prakash Chandra, Das, Mousumi, Ramasesha, S
The correlated Pariser-Parr-Pople model Hamiltonian for interacting ð-electrons is employed for calculating the two-photon absorption (TPA) cross section in trans-stilbene and its derivatives using...
Jha, Prakash Chandra, Das, Mousumi, Ramasesha, S
The correlated Pariser-Parr-Pople model Hamiltonian for interacting ð-electrons is employed for calculating the two-photon absorption (TPA) cross section in trans-stilbene and its derivatives using...
Mazumdar, S., Das, Mousumi, Ramasesha, S.
The low-lying singlet and triplet spectrum in conjugated polymers clearly show that the mechanism proposed by Lin et al. to explain their electric field dependence of singlet to triplet yield ratios...
Ramasesha, S, Mazumdar, S, Tandon, Kunj, Das, Mousumi
Using a time-dependent model many-body formulation, we follow the electron–hole recombination between a pair of oppositely charged polyene chains and triplet–triplet (T–T) scattering in...
Ramasesha, S, Mazumdar, S, Tandon, Kunj, Das, Mousumi
Using a time-dependent model many-body formulation, we follow the electron–hole recombination between a pair of oppositely charged polyene chains and triplet–triplet (T–T) scattering in...
Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies (2002)
Das, Mousumi, Teuben, Peter J., Vogel, Stuart N., Regan, Michael W., Sheth, Kartik, Harris, Andrew I., ...
We use data from the BIMA Survey of Nearby Galaxies (SONG) to investigate the relationship between ellipticity and central mass concentration in barred spirals. Existing simulations predict that bar...
The central velocity field in NGC 253: possible indication of a bar (2001)
Das, Mousumi, Anantharamaiah, K.R., Yun, M.S.
We have investigated whether motion of gas in a barlike potential can account for the peculiar but systematic velocity field observed in the nuclear region of the starburst galaxy NGC 253. This...
The gas dynamics in the centre of the starburst M82 (2001)
Wills, K., Pedlar, A., Muxlow, T.W.B., Das, Mousumi
Open Access. Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium #205, held 15-18 August 2000 at Manchester, United Kingdom. Ed. R. T. Schilizzi, 2001
The Central Velocity Field in NGC 253 : Possible Indication of a Bar (2000)
Das, Mousumi, Anantharamaiah, K. R., Yun, M. S.
We have investigated whether motion of gas in a bar-like potential can account for the peculiar but systematic velocity field observed in the nuclear region of the starburst galaxy NGC 253. This...
Modelling the bar in the centre of the starburst galaxy M82 (2000)
Wills, K.A., Das, Mousumi, Pedlar, A., Muxlow, T.W.B., Robinson, T.G.
Restricted Access. An open access version is available at NASA ADS (alternative location).
Tidally compressed molecular gas in ultraluminous and early type galaxies (2000)
The effect of the galactic tidal field is usually considered disruptive in the literature. However, in some cases its effect can become compressive. Using the virial theorem, we have determined the...
Kinematics of molecular gas in the nucleus of barred galaxies: NGC 253 and M82 (2000)
In more than half of all observed spiral galaxies, the central molecular gas is distributed in a bar. Since gas is a dissipative fluid, it will tend to settle along closed orbits in the plane of a...
Tidally compressed gas in centers of early-type and ultraluminous galaxies (1999)
In this paper we propose that the compressive tidal field in the centers of flat-core early-type galaxies and ultraluminous galaxies compresses molecular clouds producing dense gas observed in the...
Tidally Compressed Gas in Centers of Early Type and Ultraluminous Galaxies (1999)
In this paper we propose that the compressive tidal field in the centers of flat-core early type galaxies and ultraluminous galaxies compresses molecular clouds producing dense gas obseved in the...
Starbursts Triggered by Central Overpressure. II. A Parameter Study (1996)
A parameter study is made of the radiative shock compression of a disk molecular cloud due to the high pressure of the central molecular intercloud medium, after the cloud has fallen into the central...
Collisional Buildup of Molecular Clouds: Mass and Velocity Spectra (1996)
We have studied the evolution of a local region of molecular clouds, moving in the mean gravitational potential of the Galactic disk. The clouds interact gravitationally with one another and undergo...
Starbursts Triggered by Central Overpressure. II. A Parameter Study (1996)
A parameter study is made of the radiative shock compression of a disk molecular cloud due to the high pressure of the central molecular intercloud medium, after the cloud has fallen into the central...
Collisional Buildup of Molecular Clouds: Mass and Velocity Spectra (1996)
We have studied the evolution of a local region of molecular clouds, moving in the mean gravitational potential of the Galactic disk. The clouds interact gravitationally with one another and undergo...
Starbursts triggered by central overpressure in interacting galaxies (1993)
We present a triggering mechanism for starbursts in the central regions of interacting galaxies. As a disk giant molecular cloud (GMC) falls into the central region of a galaxy following a galaxy...
Starbursts triggered by central overpressure in interacting galaxies (1992)
We propose a physical mechanism for the triggering of a burst of massive-star formation in the central regions of interacting spiral galaxy pairs. Our mechanism is based on the detailed evolution of...
Starbursts triggered by central overpressure in interacting galaxies (1992)
We propose a physical mechanism for the triggering of a burst of massive-star formation in the central regions of interacting spiral galaxy pairs. Our mechanism is based on the detailed evolution of...