106 citations · 159 across the 9 of their papers we have counts for
9 papers
Constraints on a dark matter sub-halo near the Sun from pulsar timing
Sukanya Chakrabarti, Philip Chang, Stefano Profumo +1
Using pulsar accelerations, we identify and constrain the properties of a dark matter sub-halo in the Galaxy for the first time from analyzing the acceleration field of binary and…
A map of the outer gas disk of the Galaxy with direct distances from young stars
Peter Craig, Sukanya Chakrabarti, Alexander R. Pettitt +2
For more than fifty years, astronomers have mapped the neutral hydrogen gas in the Galaxy assuming kinematically derived distances. We employ the distances of nearby young stars, w…
The Symbiotic Recurrent Nova V745 Sco at Radio Wavelengths
Isabella Molina, Laura Chomiuk, Justin D. Linford +14
V745 Sco is a Galactic symbiotic recurrent nova with nova eruptions in 1937, 1989 and 2014. We study the behavior of V745 Sco at radio wavelengths (0.6-37,GHz), covering both its 1…
Building an Acceleration Ladder with Tidal Streams and Pulsar Timing
Peter Craig, Sukanya Chakrabarti, Robyn E. Sanderson +1
We analyze stellar streams in action-angle coordinates combined with recent local direct acceleration measurements to provide joint constraints on the potential of our Galaxy. Our…
A non-interacting Galactic black hole candidate in a binary system with a main-sequence star
Sukanya Chakrabarti, Joshua D. Simon, Peter A. Craig +10
We describe the discovery of a solar neighborhood (d=468 pc) binary system with a main-sequence sunlike star and a massive non-interacting black hole candidate. The spectral energy…
A targeted search for strongly lensed supernovae with the Las Cumbres Observatory
Peter Craig, Kyle O'Connor, Sukanya Chakrabarti +4
Gravitationally lensed supernovae (glSNe) are of interest for time delay cosmology and SN physics. However, glSNe detections are rare, owing to the intrinsic rarity of SN explosion…
A Dynamical Mass Estimate from the Magellanic Stream
Peter Craig, Sukanya Chakrabarti, Stefi Baum +1
We present a model for the formation of the Magellanic Stream (MS) due to ram pressure stripping. We model the history of the Small and Large Magellanic Clouds in the recent cosmol…
Towards a direct measure of the Galactic acceleration
Sukanya Chakrabarti, Jason Wright, Philip Chang +9
High precision spectrographs can enable not only the discovery of exoplanets, but can also provide a fundamental measurement in Galactic dynamics. Over about ten year baselines, th…
Dynamically Produced Moving Groups in Interacting Simulations
Peter Craig, Sukanya Chakrabarti, Heidi Jo Newberg +1
We show that Smoothed Particle Hydrodynamics (SPH) simulations of dwarf galaxies interacting with a Milky Way-like disk produce moving groups in the simulated stellar disk. We anal…