49 citations · 129 across the 6 of their papers we have counts for
5 papers · 1 filter
Hard X-ray Emission Associated with White Dwarfs. IV. Signs of Accretion from Sub-stellar Companions
You-Hua Chu, Jesus A. Toala, Martin A. Guerrero +3
KPD 0005+5106, with an effective temperature of 200,000 K, is one of the hottest white dwarfs (WDs). ROSAT unexpectedly detected "hard" (1 keV) X-rays from this appar…
Spitzer 24 um Survey for Dust Disks around Hot White Dwarfs
You-Hua Chu, Kate Y. L. Su, Jana Bilikova +6
Two types of dust disks around white dwarfs (WDs) have been reported: small dust disks around cool metal-rich WDs consisting of tidally disrupted asteroids, and a large dust disk a…
Spitzer Surveys of Infrared Excesses of White Dwarfs
Y. -H. Chu, R. A. Gruendl, J. Bilíkovà +2
IR excesses of white dwarfs (WDs) can be used to diagnose the presence of low-mass companions, planets, and circumstellar dust. Using different combinations of wavelengths and WD t…
Spitzer Surveys of IR Excesses of White Dwarfs
Y. -H. Chu, R. A. Gruendl, J. Bilíkovà +2
IR excesses of white dwarfs (WDs) can be used to diagnose the presence of low-mass companions, planets, and circumstellar dust. Using different combinations of wavelengths and WD t…
Spitzer 24 um Images of Planetary Nebulae
Y. -H. Chu, R. A. Gruendl, M. A. Guerrero +9
Spitzer MIPS 24 um images were obtained for 36 Galactic planetary nebulae (PNe) whose central stars are hot white dwarfs (WDs) or pre-WDs with effective temperatures of ~100,000 K…