Gurtina Besla

educated at: Harvard University

occupation: astrophysicist

award received: Robert J. Trumpler Award, Vera Rubin Early Career Prize

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Articles 63

Date

Title

Authors

2022-07-01

Structural Parameters and Possible Association of the Ultra-faint Dwarfs Pegasus III and Pisces II from Deep Hubble Space Telescope Photometry

Nitya Kallivayalil, Erik J. Tollerud, Gurtina Besla, Roeland van der Marel, Andrew Wetzel, Yumi Choi, Alis Deason, Marla Geha, Puragra Guhathakurta, Evan Kirby, Elena Sacchi, Sangmo Sohn, Myoungwon Jeon
2022-10-01

The Hubble Space Telescope Survey of M31 Satellite Galaxies. I. RR Lyrae–based Distances and Refined 3D Geometric Structure

Alessandro Savino, Daniel Weisz, Evan Skillman, Nitya Kallivayalil, Andrew Wetzel, Jay Anderson, Gurtina Besla, Michael Boylan-Kolchin, Andrew Cole, Michelle Collins, Michael Cooper, Alis Deason, Marla Geha, Karoline Gilbert, Rodrigo Ibata, Mike Irwin, Geraint F. Lewis, Dougal Mackey, Robert Rich, Sangmo Sohn, Roeland van der Marel, Erik J. Tollerud, James S Bullock, Myoungwon Jeon
2020-07-16

Quantifying the Stellar Halo's Response to the LMC's Infall with Spherical Harmonics

Kathryn V. Johnston, Robyn E. Sanderson, Gurtina Besla
2019-02-07

First Gaia Dynamics of the Andromeda System: DR2 Proper Motions, Orbits, and Rotation of M31 and M33

Laura L. Watkins, Johannes Sahlmann, Roeland van der Marel, Sangmo Sohn, Gurtina Besla
2019-03-26

The Proper-motion Field along the Magellanic Bridge: A New Probe of the LMC–SMC Interaction

Roeland van der Marel, Sangmo Sohn, Nitya Kallivayalil, Gurtina Besla, Sean T. Linden
2019-03-28

Exploring the Very Extended Low-surface-brightness Stellar Populations of the Large Magellanic Cloud with SMASH

Steven Majewski, David Nidever, Roeland van der Marel, Dennis Zaritsky, Gurtina Besla, Abhijit Saha, You-Hua Chu, Maria-Rosa L. Cioni, David Martínez-Delgado, Kathy Vivas, Knut Olsen
2019

Probing the assembly of dwarf galaxies through cosmic time with damped Ly{alpha} absorption spectroscopy

Gurtina Besla
2019-10-11

Hunting for the Dark Matter Wake Induced by the Large Magellanic Cloud

Kathryn V. Johnston, Laura L. Watkins, Gurtina Besla
2018-04-17

Estimating the Mass of the Milky Way Using the Ensemble of Classical Satellite Galaxies

Sangmo Sohn, Gurtina Besla
2018-06-05

SMHASH: anatomy of the Orphan Stream using RR Lyrae stars

David Hendel, Jillian R Neeley, Adrian Price-Whelan, Victoria Scowcroft, Massimo Marengo, Roeland van der Marel, Andrzej Udalski, Barry F. Madore, Steven Majewski, Juna Kollmeier, Sangmo Sohn, Kathryn V. Johnston, Branimir Sesar, David Law, Alessia Garofalo, Michele Fabrizio, Nitya Kallivayalil, Gurtina Besla, Igor Soszyński, Rachael Beaton, Maria-Rosa L. Cioni
2018-10-16

SMASHing the LMC: A Tidally Induced Warp in the Outer LMC and a Large-scale Reddening Map

Maria-Rosa L. Cioni, Dennis Zaritsky, Lent Johnson, Knut Olsen, David Nidever, Roeland van der Marel, Gurtina Besla, David Martínez-Delgado, Kathy Vivas
2018-12-18

SMASHing the LMC: Mapping a Ring-like Stellar Overdensity in the LMC Disk

Maria-Rosa L. Cioni, Dennis Zaritsky, Lent Johnson, Knut Olsen, David Nidever, Roeland van der Marel, Gurtina Besla, David Martínez-Delgado, Kathy Vivas
2018-10-25

The Missing Satellites of the Magellanic Clouds? Gaia Proper Motions of the Recently Discovered Ultra-faint Galaxies

Roeland van der Marel, Sangmo Sohn, Nitya Kallivayalil, Gurtina Besla, Elena Sacchi
2018-08-30

The Proper Motion Field of the Small Magellanic Cloud: Kinematic Evidence for Its Tidal Disruption

Roeland van der Marel, Sangmo Sohn, Nitya Kallivayalil, Gurtina Besla, Sean T. Linden, Szymon Kozłowski, Charles R. Alcock
2018-07-23

Absolute Hubble Space Telescope Proper Motion (HSTPROMO) of Distant Milky Way Globular Clusters: Galactocentric Space Velocities and the Milky Way Mass

Roeland van der Marel, Sangmo Sohn, Gurtina Besla, Andrea Bellini
2018

Gaia DR2 proper motions of dwarf galaxies within 420 kpc. Orbits, Milky Way mass, tidal influences, planar alignments, and group infall

Gurtina Besla
2018

The influence of Sagittarius and the Large Magellanic Cloud on the stellar disc of the Milky Way Galaxy

Gurtina Besla
2018

Resolved kinematics of runaway and field OB stars in the Small Magellanic Cloud

Gurtina Besla
2018

Modelling the baryon cycle in low-mass galaxy encounters: the case of NGC 4490 and NGC 4485

Gurtina Besla
2018

The frequency of dwarf galaxy multiples at low redshift in SDSS versus cosmological expectations

Gurtina Besla, Sabrina Stierwalt
2017-04-13

Hubble Space Telescope proper motions of individual stars in stellar streams: Orphan, Sagittarius, Lethe, and the new "Parallel' stream"

Steven Majewski, Roeland van der Marel, Sangmo Sohn, David Law, Nitya Kallivayalil, Gurtina Besla, Jeffrey Carlin
2017-09-01

A Widespread, Clumpy Starburst in the Isolated Ongoing Dwarf Galaxy Merger dm1647+21

Sarah Pearson, Nitya Kallivayalil, Gurtina Besla, Sabrina Stierwalt
2017-01-23

Direct evidence of hierarchical assembly at low masses from isolated dwarf galaxy groups

Nitya Kallivayalil, Gurtina Besla, Sabrina Stierwalt
2017-10-25

SMASH: Survey of the MAgellanic Stellar History

Maria-Rosa L. Cioni, Yumi Choi, Dennis Zaritsky, Andrea Kunder, Lent Johnson, Abhijit Saha, Knut Olsen, You-Hua Chu, Steven Majewski, David Nidever, Roeland van der Marel, Gurtina Besla, David Martínez-Delgado, Kathy Vivas, Gustavo E. Medina, Eric F. Bell
2017-11-06

Space Motions of the Dwarf Spheroidal Galaxies Draco and Sculptor Based on HST Proper Motions with a ∼10 yr Time Baseline

Glenn van de Ven, Roeland van der Marel, Sangmo Sohn, Gurtina Besla, James S Bullock, Andrea Bellini
2017-02-28

A stellar overdensity associated with the Small Magellanic Cloud

Daniel Gruen, Flavia Sobreira, Eric Suchyta, Felipe Menanteau, Eusebio Sanchez, Roeland van der Marel, Vasily Belokurov, Michael Schubnell, David Martínez-Delgado, Jorge Carretero Palacios, Gurtina Besla
2017-04

HST Proper Motions of Distant Globular Clusters: Constraining the Formation & Mass of the Milky Way

Roeland van der Marel, Gurtina Besla, Andrea Bellini
2017

Direct evidence of hierarchical assembly at low masses from isolated dwarf galaxy groups

Gurtina Besla, Sabrina Stierwalt
2017

Connecting the first galaxies with ultrafaint dwarfs in the Local Group: chemical signatures of Population III stars

Gurtina Besla
2017

Orbits of massive satellite galaxies - I. A close look at the Large Magellanic Cloud and a new orbital history for M33

Gurtina Besla
2017

Orbits of massive satellite galaxies - II. Bayesian estimates of the Milky Way and Andromeda masses using high-precision astrometry and cosmological simulations

Gurtina Besla
2017-09-11

Response of the Milky Way's disc to the Large Magellanic Cloud in a first infall scenario

Kathryn V. Johnston, Gurtina Besla

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