421 citations · 3.7k across the 80 of their papers we have counts for
9 papers · 2 filters
On the density regime probed by HCN emission
Gerwyn H. Jones, Paul C. Clark, Simon C. O. Glover +1
HCN J10 emission is commonly used as a dense gas tracer, thought to mainly arise from gas with densities . This has made it a…
[CII] 158m emission from Orion A. II. Photodissociation region physics
C. H. M. Pabst, J. R. Goicoechea, A. Hacar +10
The [CII] 158m fine-structure line is the dominant cooling line of moderate-density photodissociation regions (PDRs) illuminated by moderately bright far-ultraviolet (FUV) radia…
A cold accretion flow onto one component of a multiple protostellar system
Nadia M. Murillo, Ewine F. van Dishoeck, Alvaro Hacar +2
Context: Gas accretion flows transport material from the cloud core onto the protostar. In multiple protostellar systems, it is not clear if the delivery mechanism is preferential…
The width of Herschel filaments varies with distance
G. V. Panopoulou, S. E. Clark, A. Hacar +5
Context: Filamentary structures in nearby molecular clouds have been found to exhibit a characteristic width of 0.1 pc, as observed in dust emission. Understanding the origin of th…
[CII] line emission from Orion A. I. A template for extragalactic studies?
C. H. M. Pabst, A. Hacar, J. R. Goicoechea +10
The [CII] fine-structure line is one of the dominant coolants of the neutral interstellar medium. It is hence one of the brightest far-infrared emission lines an…
A study of 90 GHz dust emissivity on molecular cloud and filament scales
Ian Lowe, Brian Mason, Tanay Bhandarkar +19
Recent observations from the MUSTANG2 instrument on the Green Bank Telescope have revealed evidence of enhanced long-wavelength emission in the dust spectral energy distribution (S…
Monoceros OB4: a new association in Gaia DR2
P. S. Teixeira, J. Alves, A. Sicilia-Aguilar +2
We use Gaia DR2 data to survey the classic Monoceros OB1 region and look for the existence of a dispersed young population, co-moving with the cloud complex. An analysis of the dis…
Gas phase Elemental abundances in Molecular cloudS (GEMS). IV. Observational results and statistical trends
M. Rodríguez-Baras, A. Fuente, P. Riviére-Marichalar +33
Gas phase Elemental abundances in Molecular CloudS (GEMS) is an IRAM 30m Large Program designed to estimate the S, C, N, and O depletions and gas ionization degree, X(e-), in a set…
Characterizing the line emission from molecular clouds. Stratified random sampling of the Perseus cloud
M. Tafalla, A. Usero, A. Hacar
The traditional approach to characterize the structure of molecular clouds is to map their line emission. We aim to test and apply a stratified random sampling t…