Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Banerjee, Arunima"'
The formation and evolution of spiral arms in low surface brightness galaxies (LSBs) are not well-understood. We study the dynamics of spiral arms in two prototypical LSBs, F568-VI and F568-01, using both analytical models and N-body + hydrodynamical
Externí odkaz:
http://arxiv.org/abs/2407.02916
Ultra-diffuse galaxies (UDGs) exhibit morphological similarities with other low luminosity galaxies indicating a possible evolutionary connection. We investigate for a common dynamical origin of field UDGs with other low luminosity field galaxies, na
Externí odkaz:
http://arxiv.org/abs/2310.08925
Autor:
Aditya, K., Banerjee, Arunima, Kamphuis, Peter, Mosenkov, Aleksandr, Makarov, Dmitry, Borisov, Sviatoslav
Superthin galaxies are bulgeless low surface brightness galaxies with unusually high major-to-minor axes ratio of the stellar disc, i.e.,$10
Externí odkaz:
http://arxiv.org/abs/2308.13312
We explore the environment of a combined set of $367$ grand-design and $619$ flocculent spiral galaxies. We introduce a novel estimator called the \textit{local geometric index} to quantify the morphology of the local environment of these $986$ spira
Externí odkaz:
http://arxiv.org/abs/2308.04069
We explore the environment of 351 grand-design and 541 flocculent spiral galaxies recently identified employing convolutional neural networks from the $17^{th}$ data release of Sloan Digital Sky Survey. We introduce a novel estimator called the Local
Externí odkaz:
http://arxiv.org/abs/2302.08087
Spiral galaxies can be classified into the {\it Grand-designs} and {\it Flocculents} based on the nature of their spiral arms. The {\it Grand-designs} exhibit almost continuous and high contrast spiral arms and are believed to be driven by density wa
Externí odkaz:
http://arxiv.org/abs/2205.08733
Autor:
Aditya, K., Kamphuis, Peter, Banerjee, Arunima, Borisov, Sviatoslav, Mosenkov, Aleksandr, Antipova, Aleksandra, Makarov, Dmitry
We present observations and models of the kinematics and distribution of neutral hydrogen (HI) in the superthin galaxy FGC 1440 with an optical axial ratio $a/b = 20.4$. Using the Giant Meterwave Radio telescope (GMRT), we imaged the galaxy with a sp
Externí odkaz:
http://arxiv.org/abs/2110.15478
The existence of flat or bulgeless galaxies poses a challenge to the hierarchical structure formation scenario advocated by modern cosmology. We determine the geometrical environment of a sample of $315$ flat galaxies from the Revised Flat Galaxy Cat
Externí odkaz:
http://arxiv.org/abs/2109.13526
Autor:
Banerjee, Arunima, He, Mo-Rigen, Chávez, Francisco Andrade, Krogstad, Jessica A., Hemker, Kevin J.
Publikováno v:
In Scripta Materialia 1 April 2024 243
Autor:
Narayanan, Ganesh, Banerjee, Arunima
Superthin galaxies (STs) are edge-on disc galaxies with strikingly high planar-to-vertical axes ratios of $\sim 10 - 20$ with no bulge component, and central surface brightness in $B$-band $>$ 23 mag arcsec$^{-2}$ comparable to low surface brightness
Externí odkaz:
http://arxiv.org/abs/2104.04216