Zobrazeno 1 - 10
of 1 050
pro vyhledávání: '"Sreeja, S."'
Autor:
Damian, Belinda, Jose, Jessy, Das, Swagat R., Gupta, Saumya, Vaikundaraman, Vignesh, Ojha, D. K., Kartha, Sreeja S., Panwar, Neelam, Eswaraiah, Chakali
Young star-forming regions in massive environments are ideal test beds to study the influence of surroundings on the evolution of disks around low-mass stars. We explore two distant young clusters, IC 1848-East and West located in the massive W5 comp
Externí odkaz:
http://arxiv.org/abs/2410.18920
Autor:
Edwin, D., Mathew, Blesson, Shridharan, B., Valsan, Vineeth, Nidhi, S., Bhattacharyya, Suman, Kartha, Sreeja S., Robin, T.
Low-mass emission-line stars belong to various evolutionary stages, from pre-main-sequence young stars to evolved stars. In this work, we present a catalog of late-type (F0 to M9) emission-line stars from the LAMOST Data Release 6. Using the scipy pa
Externí odkaz:
http://arxiv.org/abs/2410.17753
The UV upturn refers to the increase in UV flux at wavelengths shorter than 3000 {\AA} observed in quiescent early-type galaxies (ETGs), which still remains a puzzle. In this study, we aim to identify ETGs showing the UV upturn phenomenon within the
Externí odkaz:
http://arxiv.org/abs/2410.17328
Autor:
Ezhikode, Savithri H., Anilkumar, Hema, Arun, R., Mathew, Blesson, Jithesh, V., Bhattacharyya, Suman, Nedhath, Sneha, Cysil, T. B., Muneer, S., Kartha, Sreeja S., S, Pramod Kumar
Weak-line T Tauri stars (WTTS) exhibit X-ray flares, likely resulting from magnetic reconnection that heats the stellar plasma to very high temperatures. These flares are difficult to identify through targeted observations. Here, we report the serend
Externí odkaz:
http://arxiv.org/abs/2410.16241
Autor:
Robin, Thomas, Kartha, Sreeja S, R, Akhil Krishna, Krishnan, Ujjwal, Mathew, Blesson, Cysil, T. B., Patra, Narendra Nath, Shridharan, B.
Interaction between galaxies play a pivotal role in their evolution. Ongoing star formation in spiral galaxies can be affected by these processes. We select a sample of interacting galaxies in field environments at various interaction stages and are
Externí odkaz:
http://arxiv.org/abs/2409.15497
Autor:
Sidharth, A. V., Shridharan, B., Mathew, Blesson, Devaraj, A., Cysil, T. B., Stalin, C. S., Arun, R., Bhattacharyya, Suman, Kartha, Sreeja S., Robin, T.
Publikováno v:
A&A 690, A68 (2024)
In this study, we demonstrate the efficacy of the Ultraviolet Imaging Telescope (UVIT) in identifying and characterizing white dwarfs (WDs) within the Milky Way Galaxy. Leveraging the UVIT point source catalogue towards SMC and crossmatching with Gai
Externí odkaz:
http://arxiv.org/abs/2408.00852
Autor:
Banerjee, Gourav, Mathew, Blesson, Bhattacharyya, Suman, Devaraj, Ashish, Kartha, Sreeja S, Joshi, Santosh
In a recent study, Banerjee et al. (2021) produced an atlas of all major emission lines found in a large sample of 115 Galactic field Be stars using the 2-m Himalayan Chandra Telescope (HCT) facility located at Ladakh, India. This paper presents our
Externí odkaz:
http://arxiv.org/abs/2404.10339
In the context of the hierarchical model of galaxy evolution, polar ring galaxies (PRGs) are considered the intermediate phase between ongoing mergers and quiescent galaxies. This study explores the globular cluster system (GCS) and its properties in
Externí odkaz:
http://arxiv.org/abs/2404.10059
Autor:
Anilkumar, Hema, Mathew, Blesson, Jithesh, V., Kartha, Sreeja S., Manoj, P., Narang, Mayank, Chavali, Mahathi
Herbig Ae/Be (HAeBe) stars are intermediate-mass pre-main sequence stars, characterized by infrared excess and emission lines. They are observed to emit X-rays, whose origin is a matter of discussion and not settled yet. X-ray emission is not expecte
Externí odkaz:
http://arxiv.org/abs/2404.03403
Autor:
Ujjwal, K., Kartha, Sreeja S, R, Akhil Krishna, Mathew, Blesson, Subramanian, Smitha, P, Sudheesh T, Thomas, Robin
Polycyclic Aromatic Hydrocarbons (PAHs) are ubiquitous complex molecules in the interstellar medium and are used as an indirect indicator of star-formation. On the other hand the ultraviolet (UV) emission from the young massive stars directly traces
Externí odkaz:
http://arxiv.org/abs/2401.04061