Puragra Guhathakurta

Professor / Astronomer

United States

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About

Puragra Guhathakurta is a Professor and Astronomer at the University of California Observatories and the University of California Santa Cruz. His research focuses on the kinematics of stellar populations and the structural dynamics of galaxies, as evidenced by his recent articles on the Milky Way halo accretion history and stellar population discoveries in various galaxies. He is actively involved in projects analyzing the globular cluster systems and variable stars, contributing significantly to the field of astrophysics.

Articles (23)

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2025

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2022

Collaborators (16)

Chris Mihos

Worcester R. and Cornelia B. Warner Professor of Astronomy

Case Western Reserve University

UNITED STATES

Puragra Guhathakurta

Research Interests

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Articles (23)

The Globular Cluster System of the Virgo Cluster Ultradiffuse Galaxy VCC 615

Kinematical Modeling of the Resolved Stellar Outskirts of M32: Constraints on Tidal Stripping Scenarios

Constraining the Milky Way Halo Accretion History with Simulated Stellar Halos: Designing the HALO7D-X Survey

Discovery of a Weak CN Spectral Absorption Feature in Red Supergiant Stars in the Andromeda (M31) and Triangulum (M33) Galaxies

Discovery of Weak CN Stars in the Large Magellanic Cloud and Comparison to Stellar Models

Detection of a Spatially Extended Stellar Population in M33: A Shallow Stellar Halo?

BP3M: Bayesian Positions, Parallaxes, and Proper Motions Derived from the Hubble Space Telescope and Gaia Data

The Next Generation Virgo Cluster Survey. XXXVII. Distant RR Lyrae Stars and the Milky Way Stellar Halo Out to 300 kpc

Data-driven Discovery of Diffuse Interstellar Bands with APOGEE Spectra

Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury

A Noninteracting Galactic Black Hole Candidate in a Binary System with a Main-sequence Star

Elemental Abundances in M31: Individual and Coadded Spectroscopic [Fe/H] and [α/Fe] throughout the M31 Halo with SPLASH

HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra

The Next Generation Virgo Cluster Survey (NGVS). XXXV. First Kinematical Clues of Overly Massive Dark Matter Halos in Several Ultradiffuse Galaxies in the Virgo Cluster

The Neon Gap: Probing Ionization with Dwarf Galaxies at z ∼ 1

Resolved SPLASH Chemodynamics in Andromeda’s PHAT Stellar Halo and Disk: On the Nature of the Inner Halo along the Major Axis

Dwarf Galaxies Show Little ISM Evolution from z ∼ 1 to z ∼ 0: A Spectroscopic Study of Metallicity, Star Formation, and Electron Density

TREX: Kinematic Characterization of a High-dispersion Intermediate-age Stellar Component in M33

The Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER). V. The Structure of M33 in Resolved Stellar Populations

The Panchromatic Hubble Andromeda Treasury

The Dwarf Galaxy Population at z ∼ 0.7: A Catalog of Emission Lines and Redshifts from Deep Keck Observations

Kinematics and Metallicity of Red Giant Branch Stars in the Northeast Shelf of M31*

The Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER). II. The Spatially Resolved Recent Star Formation History of M33

Collaborators (16)

Chris Mihos

Miho N. Ishigaki

Yutaka Komiyama

Daniel R Hey

Evan Skillman

Alis J Deason

Peter Craig

Rosemary Wyse

Takanobu Kirihara

Sandra Faber

Evan Kirby

David Koo

Patrick Durrell

Andrés del Pino Molina

Laura V. Sales

Melissa Ness

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