23 citations · 26 across the 7 of their papers we have counts for
9 papers
First monitoring campaign of a Main-sequence Radio Pulse emitter: the case of CU Vir
Barnali Das, Hayley Bignall, Andrew Zic +6
CU Vir, a magnetic hot star, is the first discovered Main-sequence Radio Pulse emitter (MRP) characterized by its ability to produce periodic radio pulses via electron cyclotron ma…
ASKAP J005512.2-255834: A Luminous, Long-Lived Radio Transient at z = 0.1 -- an Orphan Afterglow or an off-nuclear TDE from an IMBH?
Ashna Gulati, Tara Murphy, David L. Kaplan +24
We report the discovery of a slowly evolving, extragalactic radio transient, ASKAP J005512.2--255834 (hereafter ASKAP J0055-2558), identified using the Australian SKA Pathfinder in…
Discoveries of fine structures and secondary pulses in coherent radio emission from a magnetic massive star
Barnali Das, Poonam Chandra, William Cotton +1
In this paper, we report auroral radio emission from a magnetic B star HD 142990 using the MeerKAT radio telescope at MHz. The star is known to produce such emission (ob…
Multidisciplinary Science in the Multimessenger Era
Eric Burns, Christopher L. Fryer, Ivan Agullo +82
Astrophysical observations of the cosmos allow us to probe extreme physics and answer foundational questions on our universe. Modern astronomy is increasingly operating under a hol…
Coherent radio emission from 'Main-sequence Radio Pulse emitters': a new stellar diagnostic to probe 3D magnetospheric structures
Barnali Das, Poonam Chandra, Veronique Petit
Main-sequence Radio Pulse emitters (MRPs) are magnetic early-type stars that produce coherent radio emission observed in the form of periodic radio pulses. The emission mechanism b…
XMM-Newton Perspective of the Unique Magnetic Binary- Lupi
Ayan Biswas, Gregg A. Wade, Poonam Chandra +3
The Lupi A (HD 136504) system stands out among magnetic massive binaries as the only short-period binary system in which both components have detectable magnetic fields. The pr…
A detailed study of the polarisation convention of the Giant Metrewave Radio Telescope
Poonam Chandra, S. Suresh Kumar, Sanjay Kudale +5
Our work aims to investigate the polarisation convention of the Giant Metrewave Radio Telescope (GMRT) radio telescope and understand whether the telescope follows the standard IAU…
Peculiar spectral property of coherent radio emission from a hot magnetic star: the case of an extreme oblique rotator
Barnali Das, Poonam Chandra
We report ultra-wideband (0.4-4.0 GHz) observation of coherent radio emission via electron cyclotron maser emission (ECME) produced by the hot magnetic star HD 142990. With nearly…
The accelerating rotation of the magnetic He-weak star HD 142990
M. Shultz, Th. Rivinius, B. Das +2
HD 142990 (V 913 Sco; B5 V) is a He-weak star with a strong surface magnetic field and a short rotation period ( d). While it is clearly a rapid rotator, recent…