168 citations · 1.7k across the 41 of their papers we have counts for
41 papers
A Study of the Magnetic Activity and Variability of GJ 436
M. Kumar, R. Fares
We present a magnetic activity study of GJ 436 using spectroscopic data from HARPS, spanning over 14 years, and additional data from NARVAL, falling within the HARPS observations.…
Faint light of old neutron stars and detectability at the James Webb Space Telescope
Shiuli Chatterjee, Raghuveer Garani, Rajeev Kumar Jain +3
Isolated ideal neutron stars (NS) of age yrs exhaust thermal and rotational energies and cool down to temperatures below K. Accretion of particle dark ma…
Cloud-cloud collision as origin of the G31.41+0.31 massive protocluster
M. T. Beltrán, V. M. Rivilla, M. S. N. Kumar +2
The G31.41+0.31 (G31) hot molecular core (HMC) is a high-mass protocluster showing accelerated infall and rotational spin-up that is well studied at high-angular resolution. To com…
The sharp ALMA view of infall and outflow in the massive protocluster G31.41+0.31
M. T. Beltrán, V. M. Rivilla, R. Cesaroni +15
Context. To better understand the formation of high-mass stars, it is fundamental to investigate how matter accretes onto young massive stars, how it is ejected, and how all this d…
Filament coalescence and hub structure in MonR2: Implications to massive star and cluster formation
M. S. N. Kumar, D. Arzoumanian, A. Men'shchikov +3
Here we study the MonR2 star forming region, which has a rich network of filaments joining in a star cluster forming hub, aiming at understanding the hub structure and to examine t…
Analysis of physical processes in eruptive YSOs with near infrared spectra and multi-wavelength light curves
Zhen Guo, P. W. Lucas, C. Contreras Peña +11
The decade-long Vista Variables in the Via Lactea (VVV) survey has detected numerous highly variable young stellar objects (YSOs). We present a study of 61 highly variable VVV YSOs…