Formation of Gaps in Self-gravitating Debris Disks by Secular Resonance in a Single-planet System. I. A Simplified Model [PDF]
Astrophysical Journal, 2020 Spatially resolved images of debris disks frequently reveal complex morphologies such as gaps, spirals, and warps. Most existing models for explaining such morphologies focus on the role of massive perturbers (i.e., planets, stellar companions), ignoring
A. Sefilian, R. Rafikov, M. Wyatt
semanticscholar +1 more source
Photoevaporation of Grain-depleted Protoplanetary Disks around Intermediate-mass Stars: Investigating the Possibility of Gas-rich Debris Disks as Protoplanetary Remnants [PDF]
Astrophysical Journal, 2020 Debris disks are classically considered to be gas-less systems, but recent (sub)millimeter observations have detected tens of those with rich gas content.
Riouhei Nakatani +4 more
semanticscholar +1 more source
A Constraint on the Amount of Hydrogen from the CO Chemistry in Debris Disks
The Astrophysical Journal, 2023 The faint CO gases in debris disks are easily dissolved into C by UV irradiation, while CO can be reformed via reactions with hydrogen. The abundance ratio of C/CO could thus be a probe of the amount of hydrogen in the debris disks.
Kazunari Iwasaki +3 more
doaj +1 more source
Primordial or Secondary? Testing Models of Debris Disk Gas with ALMA
The Astrophysical Journal, 2023 The origin and evolution of gas in debris disks are still not well understood. Secondary gas production from cometary material or a primordial origin have been proposed.
Gianni Cataldi +15 more
doaj +1 more source
Debris disks around stars in the NIKA2 era [PDF]
EPJ Web of Conferences, 2020 The new NIKA2 camera at the IRAM 30m radiotelescope was used to observe three known debris disks in order to constrain the SED of their dust emission in the millimeter wavelength domain.
Lestrade J.-F. +45 more
doaj +1 more source
The Apparent Absence of Forward Scattering in the HD 53143 Debris Disk
The Astrophysical Journal, 2023 HD 53143 is a mature Sun-like star and host to a broad disk of dusty debris, including a cold outer ring of planetesimals near 90 au. Unlike most other inclined debris disks imaged at visible wavelengths, the cold disk around HD 53143 appears as ...
Christopher C. Stark +7 more
doaj +1 more source
The Nearby, Young, Argus Association: Membership, Age, and Dusty Debris Disks [PDF]
Astrophysical Journal, 2018 The reality of a field Argus Association has been doubted in some papers in the literature. We apply Gaia DR2 data to stars previously suggested to be Argus members and conclude that a true association exists with age 40–50 Myr and containing many stars ...
B. Zuckerman
semanticscholar +1 more source
A Survey for Massive Giant Planets in Debris Disks with Evacuated Inner Cavities [PDF]
, 2007 The commonality of collisionally replenished debris around main sequence stars suggests that minor bodies are frequent around Sun-like stars. Whether or not debris disks in general are accompanied by planets is yet unknown, but debris disks with large ...
A. Moro‐Martin +13 more
core +2 more sources
The Effect of Dust Composition and Shape on Radiation-pressure Forces and Blowout Sizes of Particles in Debris Disks [PDF]
Astronomical Journal, 2019 The light scattered from dust grains in debris disks is typically modeled as compact spheres using the Lorenz–Mie theory or as porous spheres by incorporating an effective medium theory.
J. Arnold +3 more
semanticscholar +1 more source
New Millimeter CO Observations of the Gas-rich Debris Disks 49 Cet and HD 32297 [PDF]
Astrophysical Journal, 2019 Previous observations revealed the existence of CO gas at nearly protoplanetary level in several dust-rich debris disks around young A-type stars. Here we used the Atacama Large Millimeter/submillimeter Array (ALMA) 7 m Array to measure 13CO and C18O ...
A. Mo'or +9 more
semanticscholar +1 more source