Search Publications
A3COSMOS: A census on the molecular gas mass and extent of main-sequence galaxies across cosmic time
Schinnerer, Eva; Liu, Daizhong; Kokorev, Vasily +6 more
Aims: We aim to constrain for the first time the mean mass and extent of the molecular gas of a mass-complete sample of normal > 1010 M⊙ star-forming galaxies at 0.4 < z < 3.6.
Methods: We apply an innovative uv-based stacking analysis to a large set of archival Atacama Large Millimeter/submillimeter Array …
Filament coalescence and hub structure in Mon R2. Implications for massive star and cluster formation
Arzoumanian, D.; Palmeirim, P.; Men'shchikov, A. +3 more
There is growing evidence of the role of hub-filament systems (HFS) in the formation of stars from low to high masses. As of today, however, the detailed structures of these systems are still not well described. Here we study the Mon R2 star-forming region, which has a rich network of filaments joining in a star cluster forming hub, and aim to und…
Understanding star formation in molecular clouds. IV. Column density PDFs from quiescent to massive molecular clouds
André, Ph.; Arzoumanian, D.; Könyves, V. +26 more
Probability distribution functions of the total hydrogen column density (N-PDFs) are a valuable tool for distinguishing between the various processes (turbulence, gravity, radiative feedback, magnetic fields) governing the morphological and dynamical structure of the interstellar medium. We present N-PDFs of 29 Galactic regions obtained from Hersc…
The width of Herschel filaments varies with distance
Panopoulou, G. V.; Smith, R. J.; Ntormousi, E. +5 more
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 this universal width has become a topic of central importance in the study of molecular cloud structure and the early stages of star formation.
Aims: We investigate h…
Physics of ULIRGs with MUSE and ALMA: The PUMA project. IV. No tight relation between cold molecular outflow rates and AGN luminosities
Rigopoulou, D.; Colina, L.; van der Werf, P. +11 more
We study molecular outflows in a sample of 25 nearby (z < 0.17, d < 750 Mpc) ultra-luminous infrared galaxy (ULIRG) systems (38 individual nuclei) as part of the Physics of ULIRGs with MUSE and ALMA (PUMA) survey, using ∼400 pc (0.1-1.0″ beam FWHM) resolution ALMA CO(2-1) observations. We used a spectro-astrometry analysis to identify high-v…
Survey of Orion Disks with ALMA (SODA). I. Cloud-level demographics of 873 protoplanetary disks
van Dishoeck, E. F.; Portegies Zwart, S.; Hacar, A. +2 more
Context. Surveys of protoplanetary disks in nearby star-forming regions (SFRs) have provided important information on their demographics. However, due to their sample sizes, these surveys cannot be used to study how disk properties vary with the environment.
Aims: We conduct a survey of the unresolved millimeter continuum emission of 873 prot…
Self-absorption in [C II], 12CO, and H I in RCW120. Building up a geometrical and physical model of the region
Schneider, N.; Zavagno, A.; Stutzki, J. +19 more
Aims: Revealing the 3D dynamics of H II region bubbles and their associated molecular clouds and H I envelopes is important for developing an understanding of the longstanding problem as to how stellar feedback affects the density structure and kinematics of the different phases of the interstellar medium.
Methods: We employed observatio…
Upper mass-loss limits and clumping in the intermediate and outer wind regions of OB stars
Puls, J.; Najarro, F.; Traficante, A. +4 more
Context. Mass loss is a key parameter throughout the evolution of massive stars, and it determines the feedback with the surrounding interstellar medium. The presence of inhomogeinities in stellar winds (clumping) leads to severe discrepancies not only among different mass-loss rate diagnostics, but also between empirical estimates and theoretical…
The typical width of Herschel filaments
Arzoumanian, D.; Palmeirim, P.; André, P. J.
Context. Dense molecular filaments are widely believed to be representative of the initial conditions of star formation in interstellar clouds. Characterizing their physical properties, such as their transverse size, is therefore of paramount importance. Herschel studies suggest that nearby (d < 500 pc) molecular filaments have a typical half-p…
The eROSITA Final Equatorial-Depth Survey (eFEDS). A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei
Nandra, Kirpal; Imanishi, Masatoshi; Wada, Keiichi +21 more
Aims: We investigate the physical properties - such as the stellar mass (M*), star-formation rate, infrared (IR) luminosity (LIR), X-ray luminosity (LX), and hydrogen column density (NH) - of mid-IR (MIR) galaxies and active galactic nuclei (AGN) at z < 4 in the 140 deg2 field observed…