Tables and Preprints

This is the portal to access online tables and preprints of various data (results of theoretical calculations) interesting in different aspects of astrophysical application. Please select your area of interest in the navigation bar on the left. Please quote this webpage and the original publication when making use of these results. Further preprints can be accessed through my publication list.



Fits Of Astrophysical Reaction Rates

Fits of all reaction rates calculated with the Hauser-Feshbach code NON-SMOKER are published in Atomic Data Nuclear Data Tables 75 (2000) 1. The printed version is only a subset of all the available fits. The complete sets of rates are available on-line from the ADNDT web site (see below).

Please note the following copyright information regarding the paper and the reaction rate fits:

This material has been published in Atomic Data and Nuclear Data Tables 75 (2000) 1, the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by Academic Press. This material may not be copied or reposted without explicit permission.

  1. Preprint

    All files are gzipped PostScript:
    • Main text, including explanation of tables and Table A (therein referred to as Table 1). [22 pages]
      (Also available at the arXiv.org e-print archive.)
    • Table I (prepared by the Editorial Office of ADNDT and not available here)
    • Table II [135 pages]
    • Table III [48 pages]
    • Table IV [43 pages]
    • Table V [109 pages] (tabulated partition functions up to a temperature of 1010 K. Partition functions for higher temperatures can be found below.)

  2. Machine readable files containing reaction rate fits

    Machine readable files can be downloaded from the on-line version of ADNDT at their web site containing data files associated with articles in ADNDT. If you have problems with downloading from the ADNDT web site, try here. The full article is available at IDEAL.

    There are two sets of reaction rate fits, using microscopic information from two mass formulae (FRDM, ETFSI-Q), and two tables with the respective partition functions. For further details on contents and file formats consult the README file.

    Note: For (n,γ) reactions, the reaction rates (obtained with FRDM input) should be renormalized to the recommended theoretical and experimental values given in Atomic Data Nuclear Data Tables 76 (2000) 70! That paper also gives a theoretical correction of the rates correlated with the neutron number which can also be applied to nuclei further off stability.

    Please send e-mail to me if you have further questions.

Tables of Nuclear Cross Sections and Reaction Rates

On public request, the original statistical model (Hauser-Feshbach) results used to generate the above reaction rate fits are also published in a data repository. The data sets consist of theoretical cross sections and reaction rates calculated with the NON-SMOKER code. In order to facilitate comparison to other calculations, the input set of nuclear level information is also given.

The tables have appeared in Atomic Data Nuclear Data Tables 79 (2001) 47. The printed version only contains a detailed explanation and 3 sample tables. The full tables are only available on-line.

Please note the following copyright information regarding the paper and the cross section and reaction rate tables:

This material has been published in Atomic Data and Nuclear Data Tables 79 (2001) 47, the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by Academic Press. This material may not be copied or reposted without explicit permission.

  1. Preprint

    The preprint is locally available in PostScript or PDF and also from the arXiv.org e-print archive.

  2. Machine processable files of cross sections and reaction rates

    Machine readable files can be downloaded from the on-line version of the ADNDT article. In case you have problems accessing the ADNDT site, try to download from here. The full article is available at IDEAL.

    The files contain nuclear cross sections and reaction rates - calculated with microscopic information from two mass models (FRDM, ETFSI-Q) - and nuclear level information used in the computation of the above astrophysical reaction rate fits. For further details on contents and file formats consult the README file.

    Note: For (n,γ) reactions, the cross sections and reaction rates (obtained with FRDM input) should be renormalized to the recommended theoretical and experimental values given in Atomic Data Nuclear Data Tables 76 (2000) 70! That paper gives a theoretical correction of the rates correlated with the neutron number which can also be applied to nuclei further off stability.

Nuclear Partition Functions For T9>10

For certain applications it is necessary to have partition functions available beyond the temperature range considered in the above ADNDT paper. The above paper contains tables of partition functions up to a maximal temperature of T9=10.

The extended set of partition functions presented here was calculated for a grid of temperatures from 1.2x1010 K to 2.75x1011 K (1<=kT<=24 MeV). At such high energies/temperatures additional continuum corrections have to be applied which lead to a suppression of the "bare" partition function.

  1. Preprint

    The paper appeared in Astrophys. J. Suppl. 147 (2003) 403. The preprint is locally available in PostScript or PDF and also from the arXiv.org e-print archive.

  2. Machine processable files of high-T partition functions

    Machine readable files are available from the on-line version of Astrophys. J. Suppl. 147 (2003) 403. In case you have problems accessing the Ap. J. site, try to download from here.

Predicted Cross Sections for Photon-Induced Particle Emission

Recently there has been increased interest in testing reaction cross section predictions of photodisintegration reactions by using real photons from Bremsstrahlung or lasers. In principle, photodisintegration rates can be inferred from the data given above. However, those are not applicable to the reactions studied in the laboratory where the target usually is in its ground state. Therefore, here we calculate photodisintegration cross sections for targets in their naturally occuring excitation states, which is the first excited state for 180Ta (i.e. 180mTa) and the ground state for all other nuclei. More specifically, the (γ,n), (γ,p), and (γ,α) cross sections for naturally occuring isotopes from Ti to Bi are given (those are considered to be relevant for the γ-, p-, s-, and r-processes in heavy element nucleosynthesis and therefore warrant further study). The results were obtained with the same NON-SMOKER code with the same inputs as for the papers above.

It should be noted that these cross sections cannot be applied to nucleosynthesis calculations as the thermal excitation of the target is not considered. However, this becomes important for photodisintegration reactions already at moderate temperatures. For such applications, use the rates from the above paper instead.

The tables have been published in Atomic Data Nuclear Data Tables 88 (2004) 1 (or check the ADNDT web site). Please note the following copyright information regarding the paper and the cross sections:

This material has been published in Atomic Data and Nuclear Data Tables 88 (2004) 1, the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by Academic Press. This material may not be copied or reposted without explicit permission.

  1. Preprint

    The preprint is available from the arXiv.org e-print archive.

  2. Machine processable files of photon-induced cross sections for targets in their ground state

    Machine readable files are available at the on-line version of ADNDT. In case you have problems accessing the ADNDT site, try to download from here.

Type II Supernova Yields

The stellar evolution of massive stars with masses between 15 and 25 solar masses and initial solar metallicity has been calculated with updated stellar and nuclear physics. The original paper appeared in The Astrophysical Journal 576 (2002) 323. The printed version contains abbreviated tables whereas the electronic version includes the full tables.

  1. Preprint

    The preprint is available from the arXiv.org e-print archive.

  2. Machine processable tables

    All tables in the paper are also available in ASCII format in the on-line version of The Astrophysical Journal 576 (2002) 323. You have to click on the table and then on "ASCII" in the first line on the top.

    If you cannot access the journal, ASCII versions of Tables 5, 8, 9 can be downloaded locally.

    Additionally, the elemental yields can also be downloaded. This table was not published before.

  3. Additional material

    Additional, previously unpublished and more detailed data are also available. These include yields obtained with different reaction rates, pre- and postsupernova structure and composition data, as well as some movies. Check it out!

Parity ratios in the nuclear level density

The ratio of the nuclear level densities for even and odd parity states as a function of excitation energy has been calculated for all nuclides between Ne and Bi. These ratios are used in the calculation of astrophysical reaction rates in the newer versions of the NON-SMOKERWEB code and will be used in the future treatment of direct capture reactions.

  1. Preprint

    The paper has been published as Physical Review C 75 (2007) 045805. The preprint is available at the arXiv.org e-print archive.

  2. Machine processable tables

    ASCII tables with the parity ratios for all considered nuclei are available at the AIP EPAPS, document no. E-PRVCAN-75-013705 (free access). They are also available locally from this server. Please cite the paper and that page when making use of the files.
© Dr. Thomas Rauscher (email), last change 2007-Apr-26