611 citations · 14.6k across the 256 of their papers we have counts for
14 papers · 1 filter
Water in star-forming regions with Herschel: highly excited molecular emission from the NGC 1333 IRAS 4B outflow
Gregory J. Herczeg, Agata Karska, Simon Bruderer +9
During the embedded phase of pre-main sequence stellar evolution, a disk forms from the dense envelope while an accretion-driven outflow carves out a cavity within the envelope. Hi…
NUV Excess in Slowly Accreting T Tauri Stars: Limits Imposed by Chromospheric Emission
Laura Ingleby, Nuria Calvet, Edwin Bergin +20
Young stars surrounded by disks with very low mass accretion rates are likely in the final stages of inner disk evolution and therefore particularly interesting to study. We presen…
A 30 AU radius CO gas hole in the disk around the Herbig Ae star Oph IRS 48
Joanna M. Brown, Gregory J. Herczeg, Klaus M. Pontoppidan +1
The physical processes leading to the disappearance of disks around young stars are not well understood. A subclass of transitional disks, the so-called cold disks with large inner…
Modelling Herschel observations of hot molecular gas emission from embedded low-mass protostars
R. Visser, L. E. Kristensen, S. Bruderer +6
Aims. Young stars interact vigorously with their surroundings, as evident from the highly rotationally excited CO (up to Eup=4000 K) and H2O emission (up to 600 K) detected by the…
CO and H2 Absorption in the AA Tauri Circumstellar Disk
Kevin France, Eric B. Burgh, Gregory J. Herczeg +7
The direct study of molecular gas in inner protoplanetary disks is complicated by uncertainties in the spatial distribution of the gas, the time-variability of the source, and the…
Herschel observations of the Herbig-Haro objects HH52-54
P. Bjerkeli, R. Liseau, B. Nisini +11
We are aiming at the observational estimation of the relative contribution to the cooling by CO and H2O, as this provides decisive information for the understanding of the oxygen c…