421 citations · 6.2k across the 71 of their papers we have counts for
6 papers · 1 filter
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…
Star Formation in Extreme Environments: The Effects of Cosmic Rays and Mechanical Heating
R. Meijerink, M. Spaans, A. F. Loenen +1
Context: Molecular data of extreme environments, such as Arp 220, but also NGC 253, show evidence for extremely high cosmic ray (CR) rates (10^3-10^4 * Milky Way) and mechanical he…
A Spitzer survey of mid-infrared molecular emission from protoplanetary disks I: Detection rates
Klaus M. Pontoppidan, Colette Salyk, Geoffrey A. Blake +3
We present a Spitzer InfraRed Spectrometer search for 10-36 micron molecular emission from a large sample of protoplanetary disks, including lines from H2O, OH, C2H2, HCN and CO2.…
Herschel observations of water vapour in Markarian 231
E. González-Alfonso, J. Fischer, K. Isaak +32
The Ultra Luminous InfraRed Galaxy Mrk 231 reveals up to seven rotational lines of water (H2O) in emission, including a very high-lying (E_{upper}=640 K) line detected at a 4sigma…
First results of the Herschel Key Program 'Dust, Ice and Gas in Time': Dust and Gas Spectroscopy of HD 100546
B. Sturm, J. Bouwman, Th. Henning +40
We present far-infrared spectroscopic observations, taken with the Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory, of the protoplanetary disk…
Dust, Ice and Gas in Time (DIGIT) Herschel program first results: A full PACS-SED scan of the gas line emission in protostar DK Cha
T. A. van Kempen, J. D. Green, N. J. Evans +42
DK Cha is an intermediate-mass star in transition from an embedded configuration to a star plus disk stage. We aim to study the composition and energetics of the circumstellar mate…