3 papers
astro-ph2005
Frequency of Debris Disks around Solar-Type Stars: First Results from a Spitzer/MIPS Survey
G. Bryden, C. A. Beichman, D. E. Trilling +1
We have searched for infrared excesses around a well defined sample of 69 FGK main-sequence field stars. These stars were selected without regard to their age, metallicity, or any…
astro-ph1999
Deep 10 and 18 micron Imaging of the HR 4796A Circumstellar Disk: Transient Dust Particles & Tentative Evidence for a Brightness Asymmetry
C. M. Telesco, R. S. Fisher, R. K. Pina +9
We present new 10.8 and 18.2 micron images of HR 4796A, a young A0V star that was recently discovered to have a spectacular, nearly edge-on, circumstellar disk prominent at ~20 mic…
astro-ph1999
How Observations of Circumstellar Disk Asymmetries Can Reveal Hidden Planets: Pericenter Glow and its Application to the HR 4796 Disk
M. C. Wyatt, S. F. Dermott, C. M. Telesco +4
Recent images of the disks of dust around the young stars HR 4796A and Fomalhaut show, in each case, a double-lobed feature that may be asymmetric (one lobe may be brighter than th…