In "Putting large-scale numerical simulations of star formation to the test: Comparing synthetic images and actual observations for statistical samples of protostars" we calculate synthetic observables for one of the largest numerical simulations of star formation ever created.
This page makes synthetic observables, and tables of measurements used in the article available for download. Any use of these data should cite Frimann, Jørgensen, and Haugbølle (2015)
A variety of physical parameters and observables, calculated for the entire sample of protostars analysed in the paper, are collected in the comma-separated ascii tables below. The content is explained in the header of each table.
Protostar Table - Contains physical parameters and observables for all the protostars (sink particles) in the simulation at different times
Core Table 125pc - Contains observables of the cores identified with the clfind2d algorithm, assuming a distance of 125 pc to the cloud
Core Table 250pc - Contains observables of the cores identified with the clfind2d algorithm, assuming a distance of 250 pc to the cloud
Continuum Images and SEDs
Below is given number of tarballs containing continuum images and SEDs of selected objects in the simulation.
Each tarball contains data from a single snapshot from the simulation (i.e. a lot of different objects observed at the same time) OR data of a single objects, following its evolution through time.
Individual continuum images and SEDs are given a multi extension fits files. Each fits file has three extensions:
- The first extension is a bare header containing physical information about the sink particle and its environment (mass, age, surrounding dust mass, ...) as well as technical information about the simulation (AMR levels, number of data points, ...).
- The second extension contains the data (continuum image or SED). The information in the header gives information about the format of the data, as well as information about the projection direction, wavelength(s) etc.
- The third extension is a fits-table containing a list of all the sink particles (protostars) within the small data range used for calculating the observables. The table gives physical information about all the sink particles. As explained in the paper, however, only one sink particle emits any radiation.
Data from individual snapshots
Output no.: Serial number of snapshot
Nstar: Number of embedded stars in snapshot
Time: Age of oldest sink particle in kyr
SFE: Star Formation Efficiency (Total stellar mass/Total gas mass)
Evolution of individual sink particles
Sink no.: Serial number of sink particle
Mfinal: Sink mass at the end of the simulation in Msun
Note that the projection direction in all windows in the plot is in the z-direction even if some are labeled as x and y.