386 citations · 1.7k across the 26 of their papers we have counts for
13 papers · 1 filter
The Anatomy of an Unusual Edge-on Protoplanetary Disk I. Dust Settling in a Cold Disk
S. Wolff, G. Duchêne, K. Stapelfeldt +7
As the earliest stage of planet formation, massive, optically thick, and gas rich protoplanetary disks provide key insights into the physics of star and planet formation. When view…
Investigating the nature of the extended structure around the Herbig star RCrA using integral field and high-resolution spectroscopy
E. Rigliaco, R. Gratton, D. Mesa +24
We present a detailed analysis of the extended structure detected around the young and close-by Herbig Ae/Be star RCrA. This is a young triple system with an intermediate mass cent…
Exploring the RCrA environment with SPHERE: Discovery of a new stellar companion
D. Mesa, M. Bonnefoy, R. Gratton +39
Aims. R Coronae Australis (R CrA) is the brightest star of the Coronet nebula of the Corona Australis (CrA) star forming region. It has very red colors, probably due to dust absorp…
Mapping of shadows cast on a protoplanetary disk by a close binary system
V. D'Orazi, R. Gratton, S. Desidera +47
For a comprehensive understanding of planetary formation and evolution, we need to investigate the environment in which planets form: circumstellar disks. Here we present high-cont…
A cavity and further radial substructures in the disk around HD~97048
G. van der Plas, C. M. Wright, F. Ménard +9
Context: Gaps, cavities and rings in circumstellar disks are signposts of disk evolution and planet-disk interactions. We follow the recent suggestion that Herbig Ae/Be disks with…
Dust masses of disks around 8 Brown Dwarfs and Very Low-Mass Stars in Upper Sco OB1 and Ophiuchus
G. van der Plas, F. Menard, K. Ward-Duong +6
We present the results of ALMA band 7 observations of dust and CO gas in the disks around 7 objects with spectral types ranging between M5.5 and M7.5 in Upper Scorpius OB1, and one…
Variability in the CO ro-vibrational lines from HD163296
Rosina P. Hein Bertelsen, I. Kamp, G. van der Plas +4
We present for the first time a direct comparison of multi-epoch (2001-2002 and 2012) CO ro-vibrational emission lines from HD163296. We find that both the line shapes and the FWHM…
An ALMA Survey for Disks Orbiting Low-Mass Stars in the TW Hya Association
David R. Rodriguez, Gerrit van der Plas, Joel H. Kastner +5
We have carried out an ALMA survey of 15 confirmed or candidate low-mass (<0.2M) members of the TW Hya Association (TWA) with the goal of detecting molecular gas in the for…
A compact concentration of large grains in the HD142527 protoplanetary dust trap
Simon Casassus, Chris Wright, Sebastian Marino +11
A pathway to the formation of planetesimals, and eventually giant planets, may occur in concentrations of dust grains trapped in pressure maxima. Dramatic crescent-shaped dust conc…
Accretion kinematics through the warped transition disk in HD142527 from resolved CO(6-5) observations
Simon Casassus, Sebastian Marino, Sebastian Perez +10
The finding of residual gas in the large central cavity of the HD142527 disk motivates questions on the origin of its non-Keplerian kinematics, and possible connections with planet…
The structure of disks around Herbig Ae/Be stars as traced by CO ro-vibrational emission
G. van der Plas, M. E. van den Ancker, L. B. F. M. Waters +1
We study the emission and absorption of CO ro-vibrational lines in the spectra of intermediate mass pre-main-sequence stars with the aim to determine both the spatial distribution…
Spatially resolved HCN J=4--3 and CS J=7--6 emission from the disk around HD 142527
G. van der Plas, S. Casassus, F. Menard +4
The disk around HD 142527 attracts a lot of attention, amongst others because of its resolved (sub) mm dust continuum that is concentrated into a horseshoe-shape towards the north…
A survey for near-infrared H2 emission in Herbig Ae/Be stars: emission from the outer disks of HD 97048 and HD 100546
A. Carmona, G. van der Plas, M. E. van den Ancker +5
We report on a sensitive search for H2 1-0 S(1), 1-0 S(0) and 2-1 S(1) ro-vibrational emission at 2.12, 2.22 and 2.25 micron in a sample of 15 Herbig Ae/Be stars employing CRIRES,…