1.1k citations · 25.9k across the 217 of their papers we have counts for
11 papers · 2 filters
Lack of PAH emission toward low-mass embedded young stellar objects
V. C. Geers, E. F. van Dishoeck, K. M. Pontoppidan +4
PAHs have been detected toward molecular clouds and some young stars with disks, but have not yet been associated with embedded young stars. We present a sensitive mid-IR spectrosc…
Coagulation of small grains in disks: the influence of residual infall and initial small-grain content
C. Dominik, C. P. Dullemond
Turbulent coagulation in protoplanetary disks is known to operate on timescale far shorter than the lifetime of the disk. In the absence of mechanisms that replenish the small dust…
A representative particle approach to coagulation and fragmentation of dust aggregates and fluid droplets
A. Zsom, C. P. Dullemond
Context: There is increasing need for good algorithms for modeling the aggregation and fragmentation of solid particles (dust grains, dust aggregates, boulders) in various astrophy…
Soft X-ray components in the hard state of accreting black holes
Caroline D'Angelo, Dimitrios Giannios, Cornelis Dullemond +1
Recent observations of two black hole candidates (GX 339-4 and J1753.5-0127) in the low-hard state (L_X/L_Edd ~ 0.003-0.05) suggest the presence of a cool accretion disk very close…
Planetesimal formation around the snow line in MRI-driven turbulent protoplanetary disks
F. Brauer, Th. Henning, C. P. Dullemond
The formation of planetesimals in protoplanetary disks due to collisional sticking of smaller dust aggregates has to face at least two severe obstacles, namely the rapid loss of ma…
Size-sorting dust grains in the surface layers of protoplanetary disks
C. P. Dullemond, C. Dominik
Aims: We wish to investigate what the effect of dust sedimentation is on the observed 10 mum feature of protoplanetary disks and how this may affect the interpretation of the obser…
Molecular hydrogen in the circumstellar environments of Herbig Ae/Be stars probed by FUSE
C. Martin-Zaidi, M. Deleuil, J. Le Bourlot +7
We observed molecular hydrogen around a sample of pre-main sequence stars in order to better characterize their gaseous CS environments. We analyzed the FUSE (Far Ultraviolet Spect…
LkH 330: Evidence for dust clearing through resolved submillimeter imaging
J. M Brown, G. A. Blake, C. Qi +2
Mid-infrared spectrophotometric observations have revealed a small sub-class of circumstellar disks with spectral energy distributions (SEDs) suggestive of large inner gaps with lo…
A coagulation-fragmentation model for the turbulent growth and destruction of preplanetesimals
Anders Johansen, Frithjof Brauer, Cornelis Dullemond +2
To treat the problem of growing protoplanetary disc solids across the meter barrier, we consider a very simplified two-component coagulation-fragmentation model that consists of ma…
Measuring the Fraction of Obscured Quasars by the Infrared Luminosity of Unobscured Quasars
Ezequiel Treister, Julian H. Krolik, Cornelis Dullemond
Recent work has suggested that the fraction of obscured AGN declines with increasing luminosity, but it has been difficult to quantify this trend. Here, we attempt to measure this…
Characterizing the nature of embedded young stellar objects through silicate, ice and millimeter observations
A. Crapsi, E. F. van Dishoeck, M. R. Hogerheijde +2
(Abridged) Classification schemes for YSOs are based on evaluating the degree of dissipation of the surrounding envelope, whose main effects are the extinction of the optical radia…