activity
20022026
most citedThe VLBA Imaging and Polarimetry Survey at 5 GHz

219 citations · 1.2k across the 61 of their papers we have counts for

collaborators

63 papers

astro-ph.GA2026

Mapping the Inner Milky Way with Infrared-Derived Distances to AGB Stars

Rajorshi Bhattacharya, Subhajit Kar, Loránt O. Sjouwerman +1

The structure and evolution of the Milky Way (MW) can be traced with distance estimates to the evolved stellar populations in the inner galactic region. However, direct astrometric…

astro-ph.GA2024

The Milky Way bar potential constrained by the kinematics of SiO maser stars in BAaDE Survey

Tian-Ye Xia, Juntai Shen, Zhi Li +5

We introduce a novel method that utilizes the longitude-velocity (l-v) envelope to constrain the Milky Way (MW) bar potential. Previous work (Habing 2016) used the l-v diagram to e…

astro-ph.GA2024

Distance estimate method for Asymptotic Giant Branch stars using Infrared Spectral Energy Distributions

Rajorshi Bhattacharya, Brandon M. Medina, Ylva M. Pihlström +8

We present a method to estimate distances to Asymptotic Giant Branch (AGB) stars in the Galaxy, using spectral energy distributions (SEDs) in the near- and mid-infrared. By assumin…

astro-ph.SR2023★ 3 cited

Long-period maser-bearing Miras in the Galactic center: period-luminosity relations and extinction estimates

M. O. Lewis, R. Bhattacharya, L. O. Sjouwerman +5

We establish a sample of 370 Mira variables that are likely near the Galactic center (GC). The sources have been selected from the OGLE and BAaDE surveys based on their sky coordin…

astro-ph.GA2023★ 3 cited

Searching for Radio Outflows from M31* with VLBI Observations

Sijia Peng, Zhiyuan Li, Lorant O. Sjouwerman +3

As one of the nearest and most dormant supermassive black holes (SMBHs), M31* provides a rare but promising opportunity for studying the physics of black hole accretion and feedbac…

astro-ph.SR2020★ 4 cited

Characterizing the Evolved Stellar Population in the Galactic Foreground I: Bolometric Magnitudes, Spatial Distribution and P-L Relations

Luis Henry Quiroga-Nuñez, Huib Jan van Langevelde, Loránt O. Sjouwerman +6

Radio campaigns using maser stellar beacons have provided crucial information to characterize Galactic stellar populations. Currently, the Bulge Asymmetries and Dynamical Evolution…