273 citations · 1.3k across the 36 of their papers we have counts for
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Exploring stellar activity in a sample of active M dwarfs
A. S. Rajpurohit, V. Kumar, K. Srivastava Mudit +3
Most M dwarfs show higher chromospheric activity, often exceeding solar levels. Characterizing stellar activity is essential, particularly since these stars are prime targets in th…
The Gaia Ultracool Dwarf Sample -- IV. GTC/OSIRIS optical spectra of Gaia late-M and L dwarfs
W. J. Cooper, H. R. A. Jones, R. L. Smart +20
As part of our comprehensive, ongoing characterisation of the low-mass end of the main sequence in the Solar neighbourhood, we used the OSIRIS instrument at the 10.4 m Gran Telesco…
Exploring the short-term variability of H and H emissions in a sample of M dwarfs
Vipin Kumar, A. S. Rajpurohit, Mudit K. Srivastava +2
The time scales of variability in active M dwarfs can be related to their various physical parameters. Thus, it is important to understand such variability to decipher the physics…
Investigation of very low mass binaries using VLT/NaCo
Subhajeet Karmakar, Arvind Singh Rajpurohit, Derek Homeier
Context: Most stars in the galactic stellar population are low-mass stars. Very low-mass (VLM) stars are a subset of the low-mass stars typically defined in terms of the stellar ma…
Exploring the short-term variability of Hα and H\b{eta} emissions in a sample of M Dwarfs
Vipin Kumar, A. S. Rajpurohit, Mudit K. Srivastava
Activities in M dwarfs show spectroscopic variability over various time scales ranging from a few seconds to several hours. The time scales of such variability can be related to in…
Detection and characterisation of two VLM binaries: LP 1033-31 and LP 877-72
Subhajeet Karmakar, A. S. Rajpurohit, F. Allard +1
Using the high-resolution near-infrared adaptive optics imaging from the NaCo instrument at the Very Large Telescope, we report the discovery of a new binary companion to the M-dwa…