activity
20242026
collaborators

6 papers

astro-ph.GA2026

A New Window on the Hα Luminosity Function and Star Formation Rate Density from 1.2 < z < 6.6 from JWST Medium-Band Photometry

Nicholas S. Martis, Chris Willott, Gregor Rihtaršič +23

We present the first self-consistent measurement of the Hα luminosity function over a wide redshift range, covering cosmic noon into the epoch of reionization. Our analysis utilize…

astro-ph.CO2026

VENUS: Strong-lensing model of MACS J1931.8-2635 -- revealing the farthest multiply imaged supernova

Joseph F. V. Allingham, Adi Zitrin, Vasily Kokorev +42

We present a parametric strong-lensing model for the galaxy cluster MACS J1931.8-2635 (), accompanying the detection of the spectroscopically confirmed SN Eos at $z = 5…

astro-ph.GA2026

VENUS: A Strongly Lensed Clumpy Galaxy at behind the Galaxy Cluster MACS J0257.1-2325

Minami Nakane, Vasily Kokorev, Seiji Fujimoto +75

We present the discovery of a strongly lensed galaxy at , dubbed the ``Misty Moons'', identified in the JWST Treasury Survey, Vast Exploration for Nascent, Unexplored S…

astro-ph.GA2025

Star Formation under a Cosmic Microscope: Highly magnified z = 11 galaxy behind the Bullet Cluster

Maruša Bradač, Jon Judež, Chris Willott +20

We present measurements of stellar population properties of a newly discovered spectroscopically confirmed , gravitationally lensed galaxy, using JWST NIRS…

astro-ph.GA2025

In Search of the First Stars: An Ultra-Compact and Very Low Metallicity Lyman- Emitter Deep Within the Epoch of Reionization

Chris J. Willott, Yoshihisa Asada, Kartheik G. Iyer +16

We present {\it JWST} observations of a gravitationally-lensed, extremely metal-poor galaxy at redshift from the CANUCS survey. Based on the low oxygen to Balmer…

astro-ph.GA2024

Detailed Study of Stars and Gas in a z = 8.3 Massive Merger with Extreme Dust Conditions

Anishya Harshan, Roberta Tripodi, Nicholas S. Martis +15

We present galaxy MACS0416-Y1 at z as observed by the CAnadian NIRISS Unbiased Cluster Survey (CANUCS). MACS0416-Y1 has been shown to have extreme dust proper…