Publications


N total: 21 / citations: 226 / h-index: 10 / g-index: 14

2024

ApJ
Jul. 2024
ADS

First Results from the Dragonfly Ultrawide Survey: the Largest Eleven Quenched Diffuse Dwarf Galaxies in 3100 square degrees with Spectroscopic Confirmation

Zili Shen, William P. Bowman, Pieter van Dokkum, Roberto G. Abraham, Imad Pasha, Michael A. Keim, Qing Liu, Deborah M. Lokhorst, Steven R. Janssens, Seery Chen


ApJ
Jul. 2024
ADS

Silkscreen: Direct Measurements of Galaxy Distances from Survey Image Cutouts

Tim B. Miller, Imad Pasha, Ava Polzin, Pieter van Dokkum. ApJ, Submitted.


SPIE
Jun. 2024
ADS

Realizing the potential of the Dragonfly Spectral Line Mapper: Calibration methods and on-sky performance

Deborah M. Lokhorst, Seery Chen, Imad Pasha, Victoria Purcell, William P. Bowman, Qing Liu, Zili Shen, Aidan MacNichol, Evgeni I. Malakhov, Roberto G. Abraham, Pieter van Dokkum. Proceedings of the SPIE.


SPIE
Jun. 2024
ADS

Software infrastructure for the highly-distributed semi-autonomous Dragonfly Spectral Line Mapper

Imad Pasha, Seery Chen, Deborah Lokhorst, William P. Bowman, Zili Shen, Qing Liu, Evgeni I. Malakhov, Roberto Abraham, Pieter G. van Dokkum. Proceedings of the SPIE.


IOP
May. 2024
ADS

Astronomical Python: An introduction to modern scientific programming

Imad Pasha. AAS-IOP Ebooks, 978-0-7503-5147-8.


PASP
Feb. 2024
ADS

maskfill: A robust and simple method to infill masks in astronomical images

Pieter van Dokkum & Imad Pasha. Publications of the Astronomical Society of the Pacific, Volume 136, Issue 3, id.034503, 12 pp.



2023

ApJ
Dec. 2023
ADS

The Heavy Metal Survey: The Evolution of Stellar Metallicities, Abundance Ratios, and Ages of Massive Quiescent Galaxies Since reshift 2

Aliza G. Beverage, Mariska Kriek, Katherine A. Suess, and Charlie Conroy, Sedona H. Price, Guillermo Barro, Rachel Bezanson, Marijn Franx, Brian Lorenz, Yilun Ma, Lamiya Mowla, Imad Pasha, Pieter van Dokkum, Daniel Weisz. eprint arXiv:2312.05307.


ApJ
Nov. 2023
ADS

The Heavy Metal Survey: Star Formation Constraints and Dynamical Masses of 21 Massive Quiescent Galaxies at z ~ 1.4 - 2.2

Mariska Kriek, Aliza G. Beverage, Sedona H. Price, and Katherine A. Suess, Guillermo Barro, Rachel S. Bezanson, Charlie Conroy, Sam E. Cutler, Marijn Franx, Jamie Lin, Brian Lorenz, Yilun Ma, Ivelina G. Momcheva, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Katherine E. Whitaker. eprint arXiv:2311.16232.


JOSS
Sep. 2023
ADS

pysersic: A Python package for determining galaxy structural properties via Bayesian inference, accelerated with jax

Imad Pasha and Tim B. Miller. Journal of Open Source Software, 8(89), 5703, https://doi.org/10.21105/joss.05703


ApJ
Aug. 2023
ADS

A Recipe for Unbiased Background Modeling in Deep Wide-Field Astronomical Images

Qing Liu, Roberto G. Abraham, Peter G. Martin, William P. Bowman, Pieter van Dokkum, Steven R. Janssens, Seery Chen, Michael A. Keim, Deborah Lokhorst, Imad Pasha, Zili Shen, Jielai Zhang. The Astrophysical Journal, Volume 953, Issue 1, id.7, 24 pp.


ApJL
Apr. 2023
ADS

A Candidate Runaway Supermassive Black Hole Identified by Shocks and Star Formation in its Wake

Pieter van Dokkum, Imad Pasha, Maria Luisa Buzzo, and Stephanie LaMassa, Zili Shen, Michael A. Keim, Roberto Abraham, Charlie Conroy, Shany Danieli, Kaustav Mitra, Daisuke Nagai, Priyamvada Natarajan, Aaron J. Romanowsky, Grant Tremblay, C. Megan Urry, Frank C. van den Bosch. The Astrophysical Journal Letters, Volume 946, Issue 2, id.L50, 14 pp.



2022

MNRAS
Dec. 2022
ADS

Quenching in Cosmic Sheets: Tracing the Impact of Large Scale Structure Collapse on the Evolution of Dwarf Galaxies

Imad Pasha, Nir Mandelker, Frank C Bosch, and Volker Springel, Freeke Voort. Monthly Notices of the Royal Astronomical Society, Volume 520, Issue 2, pp.2692-2708.


ApJ
Aug. 2022
ADS

Tidal Distortions in NGC1052-DF2 and NGC1052-DF4: Independent Evidence for a Lack of Dark Matter

Michael A. Keim, Pieter van Dokkum, Shany Danieli, Deborah Lokhorst, Jiaxuan Li, Zili Shen, Roberto Abraham, Seery Chen, Colleen Gilhuly, Qing Liu, Allison Merritt, Tim B. Miller, Imad Pasha, Ava Polzin. The Astrophysical Journal, Volume 935, Issue 2, id.160, 24 pp.


SPIE
Aug. 2022
ADS

The Dragonfly Spectral Line Mapper: design and first light

Seery Chen, Deborah M. Lokhorst, Jeff Shen, Imad Pasha, Evgeni I. Malakhov, Roberto Abraham, Pieter van Dokkum


SPIE
Aug. 2022
ADS

The pathfinder Dragonfly Spectral Line Mapper: pushing the limits for ultra-low surface brightness spectroscopy

Deborah M. Lokhorst, Seery Chen, Imad Pasha, and Jeff Shen, Evgeni I. Malakhov, Roberto G. Abraham, Pieter van Dokkum


ApJ
Mar. 2022
ADS

A Giant Shell of Ionized Gas Discovered near M82 with the Dragonfly Spectral Line Mapper Pathfinder

Deborah Lokhorst, Roberto Abraham, Imad Pasha, and Pieter van Dokkum, Seery Chen, Tim Miller, Shany Danieli, Johnny Greco, Jielai Zhang, Allison Merritt, Charlie Conroy. The Astrophysical Journal, Volume 927, Issue 2, id.136, 12 pp.


ApJ
Feb. 2022
ADS

A Method To Characterize the Wide-Angle Point Spread Function of Astronomical Images

Qing Liu, Roberto Abraham, Colleen Gilhuly, Pieter van Dokkum, Peter G. Martin, Jiaxuan Li, Johnny P. Greco, Deborah Lokhorst, Seery Chen, Shany Danieli, Michael A. Keim, Allison Merritt, Tim B. Miller, Imad Pasha, Ava Polzin, Zili Shen, Jielai Zhang. The Astrophysical Journal, Volume 925, Issue 2, id.219, 20 pp.



2021

ApJL
Dec. 2021
ADS

A Nascent Tidal Dwarf Galaxy Forming within the Northern H I Streamer of M82

Imad Pasha, Deborah Lokhorst, Pieter G. van Dokkum, and Seery Chen, Roberto Abraham, Johnny Greco, Shany Danieli, Tim Miller, Erin Lippitt, Ava Polzin, Zili Shen, Michael A. Keim, Qing Liu, Allison Merritt, Jielai Zhang. The Astrophysical Journal Letters, Volume 923, Issue 2, id.L21, 7 pp.



2020

ApJ
Aug. 2020
ADS

Brackett-γ as a Gold-standard Test of Star Formation Rates Derived from SED Fitting

Imad Pasha, Joel Leja, Pieter G. van Dokkum, and Charlie Conroy, Benjamin D. Johnson. The Astrophysical Journal, Volume 898, Issue 2, id.165



2019

ApJ
Aug. 2019
ADS

Stellar Metallicities and Elemental Abundance Ratios of z ∼ 1.4 Massive Quiescent Galaxies

Mariska Kriek, Sedona H. Price, Charlie Conroy, and Katherine A. Suess, Lamiya Mowla, Imad Pasha, Rachel Bezanson, Pieter van Dokkum, Guillermo Barro



2016

ApJL
Apr. 2016
ADS

The MOSDEF Survey: The Strong Agreement between Hα and UV-to-FIR Star Formation Rates for z~2 Star-forming Galaxies

Irene Shivaei, Mariska Kriek, Naveen A. Reddy, and Alice E. Shapley, Guillermo Barro, Charlie Conroy, Alison L. Coil, William R. Freeman, Bahram Mobasher, Brian Siana, Ryan Sanders, Sedona H. Price, Mojegan Azadi, Imad Pasha, Hanae Inami. *The Astrophysical Journal Letters.