127 citations · 363 across the 9 of their papers we have counts for
6 papers · 1 filter
Double white dwarf merger products among high-mass white dwarfs
Sihao Cheng, Jeffrey D. Cummings, Brice Ménard +1
Double white dwarf (double-WD) binaries may merge within a Hubble time and produce high-mass WDs. Compared to other high-mass WDs, the double-WD merger products have higher velocit…
A Massive Magnetic Helium Atmosphere White Dwarf Binary in a Young Star Cluster
Harvey B. Richer, Ronan M. Kerr, Jeremy Heyl +4
We have searched the Gaia DR2 catalogue for previously unknown hot white dwarfs in the direction of young open star clusters. The aim of this experiment was to try and extend the i…
TESS reveals that the nearby Pisces-Eridanus stellar stream is only 120 Myr old
Jason Lee Curtis, Marcel A. Agüeros, Eric E. Mamajek +2
Pisces-Eridanus (Psc-Eri), a nearby ( 80-226 pc) stellar stream stretching across 120 degrees of the sky, was recently discovered with Gaia data. The stream wa…
A cooling anomaly of high-mass white dwarfs
Sihao Cheng, Jeffrey D. Cummings, Brice Ménard
Recently, the power of Gaia data has revealed an enhancement of high-mass white dwarfs (WDs) on the Hertzsprung--Russell diagram, called the Q branch. This branch is located at the…
Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud IV: Evidence for Multiple Populations in Hodge 11 and NGC 2210
Christina K. Gilligan, Brian Chaboyer, Jeffrey D. Cummings +10
We present a multiple population search in two old Large Magellanic Cloud (LMC) Globular Clusters, Hodge 11 and NGC 2210. This work uses data from the Advanced Camera for Surveys a…
A Novel Approach to Constrain Rotational Mixing & Convective-Core Overshoot in Stars Using the Initial-Final Mass Relation
Jeffrey D. Cummings, Jason S. Kalirai, Jieun Choi +3
The semi-empirical initial-final mass relation (IFMR) connects spectroscopically analyzed white dwarfs in star clusters to the initial masses of the stars that formed them. Most cu…