379 citations · 1.3k across the 27 of their papers we have counts for
13 papers · 1 filter
X-ray radiative transfer in protoplanetary disks - The role of dust and X-ray background fields
Ch. Rab, M. Güdel, P. Woitke +5
The X-ray luminosities of T Tauri stars are about two to four orders of magnitude higher than the luminosity of the contemporary Sun. As these stars are born in clusters, their dis…
Stellar energetic particle ionization in protoplanetary disks around T Tauri stars
Ch. Rab, M. Güdel, M. Padovani +4
Anomalies in the abundance measurements of short lived radionuclides in meteorites indicate that the protosolar nebulae was irradiated by a high amount of energetic particles (E$\g…
Thermochemical modelling of brown dwarf discs
A. J. Greenwood, I. Kamp, L. B. F. M. Waters +5
The physical properties of brown dwarf discs, in terms of their shapes and sizes, are still largely unexplored by observations. To what extent brown dwarf discs are similar to scal…
Mid-IR spectra of Pre-Main Sequence Herbig stars: an explanation for the non-detections of water lines
S. Antonellini, I. Kamp, F. Lahuis +7
The mid-IR detection rate of water lines in disks around Herbig stars disks is about 5\%, while it is around 50\% for disks around TTauri stars. The reason for this is still unclea…
Understanding the water emission in the mid- and far-IR from protoplanetary disks around T~Tauri stars
S. Antonellini, I. Kamp, P. Riviere-Marichalar +6
We investigate which properties of protoplanetary disks around T Tauri stars affect the physics and chemistry in the regions where mid- and far-IR water lines originate and their r…
[OI] disk emission in the Taurus star forming region
G. Aresu, I. Kamp, R. Meijerink +8
The structure of protoplanetary disks is thought to be linked to the temperature and chemistry of their dust and gas. Whether the disk is flat or flaring depends on the amount of r…
Uncertainties in water chemistry in disks: An application to TW Hya
I. Kamp, W. -F. Thi, G. Meeus +7
Context. This paper discusses the sensitivity of water lines to chemical processes and radiative transfer for the protoplanetary disk around TW Hya. The study focuses on the Hersch…
Water vapor in the protoplanetary disk of DG Tau
L. Podio, I. Kamp, C. Codella +13
Water is key in the evolution of protoplanetary disks and the formation of comets and icy/water planets. While high excitation water lines originating in the hot inner disk have be…
FUV and X-ray irradiated protoplanetary disks: a grid of models II - Gas diagnostic line emission
Giambattista Aresu, Rowin Meijerink, Inga Kamp +3
Most of the mass in protoplanetary disks is in the form of gas. The study of the gas and its diagnostics is of fundamental importance in order to achieve a detailed description of…
FUV and X-ray irradiated protoplanetary disks: a grid of models I. The disk structure
R. Meijerink, G. Aresu, I. Kamp +3
Context. Planets are thought to eventually form from the mostly gaseous (~99% of the mass) disks around young stars. The density structure and chemical composition of protoplanetar…
Gas modelling in the disc of HD 163296
I. Tilling, P. Woitke, G. Meeus +19
We present detailed model fits to observations of the disc around the Herbig Ae star HD 163296. This well-studied object has an age of ~ 4 Myr, with evidence of a circumstellar dis…
X-ray impact on the protoplanetary disks around T Tauri stars
G. Aresu, I. Kamp, R. Meijerink +3
Context: T Tauri stars have X-ray luminosities ranging from L_X = 10^28-10^32 erg/s. These luminosities are similar to UV luminosities (L_UV 10^30-10^31 erg/s) and therefore X-rays…
Gas in Protoplanetary Discs (GASPS) 1. First results
G. S. Mathews, W. R. F. Dent, J. P. Williams +50
Context - Circumstellar discs are ubiquitous around young stars, but rapidly dissipate their gas and dust on timescales of a few Myr. The Herschel space observatory allows for the…