activity
20222026
most citedDetection of the Temperature Dependence of the White Dwarf Mass-Radius Relation with Gravitational Redshifts

9 citations · 28 across the 14 of their papers we have counts for

collaborators

16 papers

astro-ph.SR2026

Searching for Massive Remnant Planetary System Hosts with White Dwarf Gaia XP Spectra

Lou Baya Ould Rouis, J. J. Hermes, Pierre Bergeron +5

Remnant planetary systems around massive white dwarfs () are intrinsically rare and remain poorly characterized. As the evolutionary endpoints of i…

astro-ph.GA2026

The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper

SDSS Collaboration, Mojgan Aghakhanloo, David Aguilar +273

This paper presents the twentieth data release (DR20) from the Sloan Digital Sky Survey, the third data release of its fifth generation (SDSS-V). SDSS-V is a panoptic spectroscopy…

astro-ph.SR2026

An Ultramassive White Dwarf with a Likely Oxygen-Neon Core

Stefan M. Arseneau, J. J. Hermes, Vedant Chandra +4

The core composition of ultramassive white dwarfs remains an open question in stellar evolution. The carbon content of white dwarf cores is critical to their role as progenitors of…

astro-ph.SR2026★ 1 cited

Constraints on White Dwarf Hydrogen Layer Masses Using Gravitational Redshifts

Stefan M. Arseneau, J. J. Hermes, Maria E. Camisassa +2

The hydrogen envelope is the outermost layer of a DA white dwarf; it makes up the entirety of the stellar photosphere, and yet its typical extent is difficult to model theoreticall…

astro-ph.SR2025

Double White Dwarf Binaries in SDSS-V DR19 : A catalog of DA white dwarf binaries and constraints on the binary population

Gautham Adamane Pallathadka, Vedant Chandra, Nadia L. Zakamska +17

The fifth-generation Sloan Digital Sky Survey (SDSS-V) includes the first large-scale spectroscopic survey of white dwarfs (WDs) in the era of Gaia parallaxes. SDSS-V collects mult…

astro-ph.SR2025★ 1 cited

Resolution-Corrected White Dwarf Gravitational Redshifts Validate SDSS-V Wavelength Calibration and Enable Accurate Mass-Radius Tests

Stefan M. Arseneau, J. J. Hermes, Nadia L. Zakamska +7

Leveraging the large sample size of low-resolution spectroscopic surveys to constrain white dwarf stellar structure requires an accurate understanding of the shapes of hydrogen abs…

astro-ph.IM2025

Diamond-loaded polyimide aerogel scattering filters and their applications in astrophysical and planetary science observations

Kyle R. Helson, Carol Yan Yan Chan, Stefan Arseneau +9

Infrared-blocking, aerogel-based scattering filters have a broad range of potential applications in astrophysics and planetary science instruments in the far-infrared, sub-millimet…

astro-ph.SR2025★ 3 cited

A Large Catalog of DA White Dwarf Characteristics Using SDSS and Gaia Observations

Nicole R. Crumpler, Vedant Chandra, Nadia L. Zakamska +12

We present a catalog of 8545 and 19,257 unique DA white dwarfs observed in SDSS Data Release 19 and previous SDSS data releases, respectively. This is the largest catalog of both s…

astro-ph.SR2025

Double White Dwarf Binaries in SDSS-V DR19 : The discovery of a rare DA+DQ white dwarf binary with 31 hour orbital period

Gautham Adamane Pallathadka, Vedant Chandra, Boris T. Gansicke +13

Binaries of two white dwarfs (WDs) are an important class of astrophysical objects that are theorized to lead to Type Ia supernovae and are also used to gain insight into complex p…

astro-ph.GA2025★ 8 cited

The Nineteenth Data Release of the Sloan Digital Sky Survey

SDSS Collaboration, Gautham Adamane Pallathadka, Mojgan Aghakhanloo +210

Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial…

astro-ph.IM2025★ 3 cited

Sloan Digital Sky Survey-V: Pioneering Panoptic Spectroscopy

Juna A. Kollmeier, Hans-Walter Rix, Conny Aerts +217

The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy: it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. SDSS-V is mapping the s…

astro-ph.SR2024★ 9 cited

Detection of the Temperature Dependence of the White Dwarf Mass-Radius Relation with Gravitational Redshifts

Nicole R. Crumpler, Vedant Chandra, Nadia L. Zakamska +8

Models predict that the well-studied mass-radius relation of white dwarf stars depends on the temperature of the star, with hotter white dwarfs having larger masses at a given radi…

astro-ph.SR2023

Measuring The Mass-Radius Relation of White Dwarfs Using Wide Binaries

Stefan Arseneau, Vedant Chandra, Hsiang-Chih Hwang +10

Measuring the mass-radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass…

astro-ph.SR2023★ 3 cited

Discovery of a Proto-White Dwarf with a Massive Unseen Companion

Gautham Adamane Pallathadka, Vedant Chandra, Nadia L. Zakamska +8

We report the discovery of SDSS~J022932.28+713002.7, a nascent extremely low-mass (ELM) white dwarf (WD) orbiting a massive ( at 2 confidence) companion with a per…

astro-ph.IM2022

Novel infrared-blocking aerogel scattering filters and their applications in astrophysical and planetary science

Kyle R. Helson, Stefan Arseneau, Alyssa Barlis +8

Infrared-blocking scattering aerogel filters have a broad range of potential applications in astrophysics and planetary science observations in the far-infrared, sub-millimeter, an…

astro-ph.IM2022

Characterization of aerogel scattering filters for astronomical telescopes

Alyssa Barlis, Stefan Arseneau, Charles L. Bennett +8

We have developed a suite of novel infrared-blocking filters made by embedding scattering particles in a polymer aerogel substrate. Our developments allow us to tune the spectral p…