Index of /~akarakas/stellar_yields

Icon  Name                    Last modified      Size  Description
[DIR] Parent Directory - [TXT] PNeyields.table 06-Feb-2008 15:03 514K [   ] initial_abunds.dat 07-Aug-2007 07:54 1.6K [TXT] totalyields.table 06-Feb-2008 15:05 596K [   ] yields_z0001_cno.dat 07-Aug-2007 07:54 2.0K [   ] yields_z004_cno.dat 07-Aug-2007 07:54 2.2K [   ] yields_z008_cno.dat 07-Aug-2007 07:54 2.3K [   ] yields_z02_cno.dat 07-Aug-2007 07:54 2.7K [DIR] z0001/ 09-Oct-2007 12:04 - [DIR] z004/ 06-Feb-2008 14:53 - [DIR] z008/ 09-Oct-2007 12:04 - [DIR] z02/ 09-Oct-2007 12:04 -
Stellar yields from low and intermediate-mass stars. If you use these
data please provide a reference to the following paper:

Karakas & Lattanzio (2007, PASA)

The Stellar Yields
------------------

Individual files for each mass and metallicity are found in:

Yields for all of the Z=0.02 models are in the directory z02/  
Yields for all of the Z=0.008 models are in the directory z008/
Yields for all of the Z=0.004 models are in the directory z004/
Yields for all of the Z=0.0001 models are in the directory z0001/

Each directory contains two sub-directories: 
   1) Yields/  2) PNe/

The header of the files in each sub-directory list the 
initial and final mass. There are also two sets of files
for models with (e.g. m2.5z02_llast.dat) and without
(e.g. m2.5z02_llast0.0.dat) synthetic thermal pulses.

1) Yields/

Stellar yields integrated over the entire lifetime. Each file
contains as a header the initial and final 
   
2) PNe/

Stellar yields and average abundances in the wind in the mass lost
over the last two thermal pulses.

Format of the Data
------------------

Yields for the entire stellar lifetime

1) species i
2) atomic mass of the species i
3) nett yield (Msun)
4) mass of species i lost in the wind (Msun)
5) mass of species i initially present in the wind (Msun)
6) the average abundance of species i in the wind (mass fraction)
7) initial mass fraction of species i (mass fraction)
8) production factor, f = log10( average abundance of i / initial abundance ) 

Yields for planetary nebulae contain:

- total mass ejected over the final two TPs (Msun)

1) species i
2) atomic mass of the species i
3) nett yield (Msun) 
4) mass of species i lost from the final two TPs (Msun)
5) initial mass fraction of species i (mass fraction)
6) the average abundance of species i in the wind lost over the last two TPs (mass fraction)
7) the abundance of species i by number, divided by the number of hydrogen atoms
   in the matter expelled over the final two TPs


Synthetic Thermal pulses
------------------------
For models that had at least one TP computed using the synthetic algorithm, we
provide two sets of yields: 

  1) m2.5z02_llast0.0.dat: We assumed a zero contribution from these final TPs;
		this was done by setting lambda equal to zero.

		Yields are presented in the same way as above, one file for the total
		yield, another for planetary nebulae.

  2) m2.5z02_llast.dat:  Here we assumed that the TDU efficiency during these final
	  	TPs is a constant value, given by the lambda of the last thermal pulse.
		See Section 4 of Karakas & Lattanzio (2007) for more details.

		Yields are presented in the same way as above, one file for the total
		yield, another for planetary nebulae.