148 citations · 1.6k across the 31 of their papers we have counts for
23 papers · 1 filter
Dynamics of cluster-forming hub-filament systems: The case of the high-mass star-forming complex Monoceros R2
S. P. Trevino-Morales, A. Fuente, A. Sanchez-Monge +15
High-mass stars and star clusters commonly form within hub-filament systems. Monoceros R2, harbors one of the closest such systems, making it an excellent target for case studies.…
Structure of photodissociation fronts in star-forming regions revealed by observations of high-J CO emission lines with Herschel
C. Joblin, E. Bron, C. Pinto +17
In bright photodissociation regions (PDRs) associated to massive star formation, the presence of dense "clumps" that are immersed in a less dense interclump medium is often propose…
Spatial distribution of FIR rotationally excited CH+ and OH emission lines in the Orion Bar PDR
A. Parikka, E. Habart, J. Bernard-Salas +7
The abundance of CH+ and OH and excitation are predicted to be enhanced by the presence of vibrationally excited H2 or hot gas (~500-1000 K) in PDRs with high incident FUV radiatio…
Compression and ablation of the photo-irradiated cloud the Orion Bar
Javier R. Goicoechea, J. Pety, S. Cuadrado +7
The Orion Bar is the archetypal edge-on molecular cloud surface illuminated by strong ultraviolet radiation from nearby massive stars. Owing to the close distance to Orion (about 1…
The first CO+ image: Probing the HI/H2 layer around the ultracompact HII region Mon R2
S. P. Trevino-Morales, A. Fuente, A. Sanchez-Monge +12
The CO+ reactive ion is thought to be a tracer of the boundary between a HII region and the hot molecular gas. In this study, we present the spatial distribution of the CO+ rotatio…
The infrared signatures of very small grains in the Universe seen by JWST
Paolo Pilleri, Olivier Berné, Christine Joblin
The near- and mid-IR spectrum of many astronomical objects is dominated by emission bands due to UV-excited polycyclic aromatic hydrocarbons (PAH) and evaporating very small grains…
Very Large Telescope observations of Gomez's Hamburger: Insights into a young protoplanet candidate
O. Berne, A. Fuente, E. Pantin +8
Planets are thought to form in the gas and dust disks around young stars. In particular, it has been proposed that giant planets can form through the gravitational instability of m…
Mixed aliphatic and aromatic composition of evaporating very small grains in NGC 7023 revealed by the 3.4/3.3 m ratio
P. Pilleri, C. Joblin, F. Boulanger +1
In photon-dominated regions (PDRs), UV photons from nearby stars lead to the evaporation of very small grains (VSGs) and the production of gas-phase polycyclic aromatic hydrocarbon…
The chemical footprint of the star formation feedback in M 82 on scales of 100 pc
D. Ginard, A. Fuente, S. García-Burillo +7
We present interferometric observations of the CN 1-0 (113.491 GHz), N2H+ 1-0 (93.173 GHz), H(41)a (92.034 GHz), CH3CN (91.987 GHz), CS 3-2 (146.969 GHz), c-C3H2 3-2 (145.089 GHz),…
The chemistry and spatial distribution of small hydrocarbons in UV-irradiated molecular clouds: the Orion Bar PDR
S. Cuadrado, J. R. Goicoechea, P. Pilleri +3
We study the spatial distribution and chemistry of small hydrocarbons in the Orion Bar PDR. We used the IRAM-30m telescope to carry out a millimetre line survey towards the Orion B…
Physical structure of the photodissociation regions in NGC 7023. Observations of gas and dust emission with Herschel
M. Köhler, E. Habart, H. Arab +16
The determination of the physical conditions in molecular clouds is a key step towards our understanding of their formation and evolution of associated star formation. We investiga…
Deuteration around the ultracompact HII region Mon R2
S. P. Treviño-Morales, P. Pilleri, A. Fuente +13
The massive star-forming region Mon R2 hosts the closest ultra-compact HII region that can be spatially resolved with current single-dish telescopes. We used the IRAM-30m telescope…
Kinematics of the ionized-to-neutral interfaces in Monoceros R2
P. Pilleri, A. Fuente, M. Gerin +10
Context. Monoceros R2 (Mon R2), at a distance of 830 pc, is the only ultra-compact H ii region (UC H ii) where its associated photon-dominated region (PDR) can be resolved with the…
Spatial distribution of small hydrocarbons in the neighborhood of the Ultra Compact HII region Monoceros R2
P. Pilleri, S. Treviño-Morales, A. Fuente +14
We study the chemistry of small hydrocarbons in the photon-dominated regions (PDRs) associated with the ultra-compact HII region Mon R2. Our goal is to determine the variations of…
Probing the role of polycyclic aromatic hydrocarbons in the photoelectric heating within photodissociation regions
Yoko Okada, Paolo Pilleri, Olivier Berné +8
We observationally investigate the relation between the photoelectric heating efficiency in PDRs and the charge of PAHs, which are considered to play a key role in photoelectric he…
Herschel/HIFI observations of [CII] and [13CII] in PDRs
V. Ossenkopf, M. Röllig, D. A. Neufeld +5
Recently, we introduced detailed isotopic chemistry into the KOSMA-tau model for photon-dominated regions (PDRs) to give theoretical predictions for the abundance of the carbon iso…
Blind decomposition of Herschel-HIFI spectral maps of the NGC 7023 nebula
Olivier Berne, Christine Joblin, Yannick Deville +5
Large spatial-spectral surveys are more and more common in astronomy. This calls for the need of new methods to analyze such mega- to giga-pixel data-cubes. In this paper we presen…
Herschel / HIFI observations of CO, H2O and NH3 in Mon R2
P. Pilleri, A. Fuente, J. Cernicharo +12
Context. Mon R2 is the only ultracompact HII region (UCHII) where the associated photon-dominated region (PDR) can be resolved with Herschel. Due to its brightness and proximity, i…
Evaporating Very Small Grains as tracers of the UV radiation field in Photo-dissociation Regions
P. Pilleri, J. Montillaud, O. Berné +1
Context. In photo-dissociation regions (PDRs), Polycyclic Aromatic Hydrocarbons (PAHs) could be produced by evaporation of Very Small Grains (VSGs) by the impinging UV radiation fi…
Gas morphology and energetics at the surface of PDRs: new insights with Herschel observations of NGC 7023
C. Joblin, P. Pilleri, J. Montillaud +37
We investigate the physics and chemistry of the gas and dust in dense photon-dominated regions (PDRs), along with their dependence on the illuminating UV field. Using Herschel-HIFI…
The origin of the [C II] emission in the S140 PDRs - new insights from HIFI
C. Dedes, M. Röllig, B. Mookerjea +38
Using Herschel's HIFI instrument we have observed [C II] along a cut through S140 and high-J transitions of CO and HCO+ at two positions on the cut, corresponding to the externally…
Mid-infrared PAH and H2 emission as a probe of physical conditions in extreme PDRs
O. Berne, A. Fuente, J. R. Goicoechea +3
Mid-infrared (IR) observations of polycyclic aromatic hydrocarbons (PAHs) and molecular hydrogen emission are a potentially powerful tool to derive physical properties of dense env…
Search for corannulene (C20H10) in the Red Rectangle
P. Pilleri, D. Herberth, T. F. Giesen +10
Polycyclic Aromatic Hydrocarbons (PAHs) are widely accepted as the carriers of the Aromatic Infrared Bands (AIBs), but an unambiguous identification of any specific interstellar PA…