Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Priestley, F D"'
Autor:
Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Fehér, O., Prole, L. R., Klessen, R. S.
We present synthetic line observations of a simulated molecular cloud, utilising a self-consistent treatment of the dynamics and time-dependent chemical evolution. We investigate line emission from the three most common CO isotopologues ($^{12}$CO, $
Externí odkaz:
http://arxiv.org/abs/2406.06702
Recent advances in identifying giant molecular filaments in galactic surveys allow us to study the interstellar material and its dense, potentially star forming phase on scales comparable to resolved extragalactic clouds. Two large filaments detected
Externí odkaz:
http://arxiv.org/abs/2403.19269
Autor:
Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Fehér, O., Prole, L. R., Klessen, R. S.
Star formation activity in molecular clouds is often found to be correlated with the amount of material above a column density threshold of $\sim 10^{22} \, {\rm cm^{-2}}$. Attempts to connect this column density threshold to a ${\it volume}$ density
Externí odkaz:
http://arxiv.org/abs/2310.06037
Autor:
Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Fehér, O., Prole, L. R., Klessen, R. S.
Much of what we know about molecular clouds, and by extension star formation, comes from molecular line observations. Interpreting these correctly requires knowledge of the underlying molecular abundances. Simulations of molecular clouds typically on
Externí odkaz:
http://arxiv.org/abs/2307.13072
Filamentary structures are often identified in column density maps of molecular clouds, and appear to be important for both low- and high-mass star formation. Theoretically, these structures are expected to form in regions where the supersonic cloud-
Externí odkaz:
http://arxiv.org/abs/2304.12357
Simulations of molecular clouds often begin from highly idealised initial conditions, such as a uniform-density sphere with an artificially imposed turbulent velocity field. While the resulting structures may appear qualitatively similar to those det
Externí odkaz:
http://arxiv.org/abs/2301.05245
Models of prestellar cores often assume that the cores are isolated from their environment - material outside the core boundary plays no role in the subsequent evolution. This is unlikely to be the case in reality, where cores are located within hier
Externí odkaz:
http://arxiv.org/abs/2211.12529
Shockwaves driven by supernovae both destroy dust and reprocess the surviving grains, greatly affecting the resulting dust properties of the interstellar medium (ISM). While these processes have been extensively studied theoretically, observational c
Externí odkaz:
http://arxiv.org/abs/2208.11137
Autor:
Priestley, F. D., Whitworth, A. P.
Filaments are an ubiquitous feature of molecular clouds, and appear to play a critical role in assembling the material to form stars. The dominant filaments are observed to have a rather narrow range of widths around $\sim 0.1$ pc, and to be preferen
Externí odkaz:
http://arxiv.org/abs/2203.04367
Autor:
Matsuura, Mikako, Ayley, Victoria, Chawner, Hannah, Filipovic, M. D., Reid, Warren, Priestley, F. D., Rigby, Andy, Barlow, M. J., Gomez, Haley E.
With the entire Small Magellanic Cloud (SMC) mapped by the Spitzer Space Telescope and Herschel Space Observatory, we were able to search 8-250 micron images in order to identify infrared (IR) emission associated with SMC supernova remnants (SNRs). A
Externí odkaz:
http://arxiv.org/abs/2203.01931