43 citations · 191 across the 17 of their papers we have counts for
18 papers
Turbulence inference from CO spectral observations
Jayashree Narayan, Aris Tritsis, Christoph Federrath
Turbulence influences the structure and dynamics of molecular clouds, and plays a key role in regulating star formation. We therefore need methods to accurately infer turbulence pr…
Investigating the role of magnetic fields in the formation and evolution of striations in interstellar clouds with PRIMA
Raphael Skalidis, Konstantinos Tassis, Aris Tritsis +1
Striations are diffuse, linear, quasi-periodic, and magnetized structures located in the outskirts of molecular clouds. These structures seem to play an important role during the e…
A three-step approach to reliably estimate magnetic field strengths in star-forming regions
Aristeidis Polychronakis, Aris Tritsis, Raphael Skalidis +1
The magnetic field is known to play a crucial role in star formation. Dust polarization is an effective tool for probing the morphology of the field, yet it does not directly trace…
Ambipolar diffusion and the mass-to-flux ratio in a turbulent collapsing cloud
Aris Tritsis
The formation of stars is governed by the intricate interplay of nonideal magnetohydrodynamic (MHD) effects, gravity, and turbulence. Computational challenges have hindered a compr…
Projection-angle effects when "observing" a turbulent magnetized collapsing molecular cloud. II. Magnetic field
A. Tritsis, S. Basu, C. Federrath
Interstellar magnetic fields are thought to play a fundamental role in the evolution of star-forming regions. Polarized thermal dust emission serves as a key probe for understandin…
A fast and robust recipe for modeling non-ideal MHD effects in star-formation simulations
E. Agianoglou, A. Tritsis, K. Tassis
Non-ideal MHD effects are thought to be a crucial component of the star-formation process. Numerically, several complications render the study of non-ideal MHD effects in 3D simula…
Can we observe the ion-neutral drift velocity in prestellar cores?
Aris Tritsis, Shantanu Basu, Christoph Federrath
Given the low ionization fraction of molecular clouds, ambipolar diffusion is thought to be an integral process in star formation. However, chemical and radiative-transfer effects,…
CO enhancement by magnetohydrodynamic waves; Striations in the Polaris Flare
R. Skalidis, K. Gkimisi, K. Tassis +4
The formation of molecular gas in interstellar clouds is a slow process, but is enhanced by gas compression. Magnetohydrodynamic (MHD) waves create compressed quasiperiodic linear…
Synthetic Polarization Maps of an Outflow Zone from Magnetohydrodynamic Simulations
Gianfranco Bino, Shantanu Basu, Masahiro N Machida +4
The canonical theory of star formation in a magnetized environment predicts the formation of hourglass-shaped magnetic fields during the prestellar collapse phase. In protostellar…
The Musca molecular cloud: The perfect "filament" is still a sheet
A. Tritsis, F. Bouzelou, R. Skalidis +3
The true 3-dimensional (3D) morphology of the Musca molecular cloud is a topic that has received significant attention lately. Given that Musca does not exhibit intense star-format…
Non-ideal MHD simulations of subcritical prestellar cores with non-equilibrium chemistry
Aris Tritsis, Christoph Federrath, Karen Willacy +1
Non-ideal magnetohydrodynamic (MHD) effects are thought to be gravity's closest ally in overcoming the support of magnetic fields and in forming stars. Here, we modify the publicly…
Probing the cold magnetized Universe with SPICA-POL (B-BOP)
Ph. André, A. Hughes, V. Guillet +53
SPICA, the cryogenic infrared space telescope recently pre-selected for a `Phase A' concept study as one of the three remaining candidates for ESA's fifth medium class (M5) mission…
A new method for probing magnetic field strengths from striations in the interstellar medium
Aris Tritsis, Christoph Federrath, Nicola Schneider +1
Recent studies of the diffuse parts of molecular clouds have revealed the presence of parallel, ordered low-density filaments termed striations. Flows along magnetic field lines, K…
Magnetic field tomography in two clouds towards Ursa Major using HI fibers
Aris Tritsis, Christoph Federrath, Vasiliki Pavlidou
The atomic interstellar medium (ISM) is observed to be full of linear structures that are referred to as "fibers". Fibers exhibit similar properties to linear structures found in m…
Python Radiative Transfer Emission code (PyRaTE): non-LTE spectral lines simulations
Aris Tritsis, Harold W. Yorke, Konstantinos Tassis
We describe PyRaTE, a new, non-local thermodynamic equilibrium (non-LTE) line radiative transfer code developed specifically for post-processing astrochemical simulations. Populati…
Magnetic Seismology of Interstellar Gas Clouds: Unveiling a Hidden Dimension
Aris Tritsis, Konstantinos Tassis
Stars and planets are formed inside dense interstellar molecular clouds, by processes imprinted on the 3-dimensional (3D) morphology of the clouds. Determining the 3D structure of…
Striations in molecular clouds: Streamers or MHD waves?
A. Tritsis, K. Tassis
Dust continuum and molecular observations of the low column density parts of molecular clouds have revealed the presence of elongated structures which appear to be well aligned wit…
Magnetic Field - Gas Density Relation and Observational Implications Revisited
A. Tritsis, G. V. Panopoulou, T. Ch. Mouschovias +2
We revisit the relation between magnetic-field strength () and gas density () for contracting interstellar clouds and fragments (or, cores), which is central in observational…