Skip to main content Accessibility help
×
×
Home

Metallicities at the Sites of Nearby SN and Implications for the SN-GRB Connection

Abstract

While the broad-lined Type Ic supernovae (SN Ic-bl) associated with long-duration gamma-ray bursts (GRBs) have been studied, we do not fully understand the conditions that lead to each kind of explosion in a massive star. Here we show clues as to the production mechanism of GRBs by comparing the chemical abundances at the sites of 5 nearby (z < 0.25) broad-lined SN Ic that accompany nearby GRBs with those of 12 nearby (z < 0.14) broad-lined SN Ic that have no observed GRBs. We show that the oxygen abundances at the GRB sites are systematically lower than those found near ordinary broad-lined SN Ic. A unique feature of this analysis is that we present new spectra of the host galaxies and analyze the measurements of both samples in the same set of ways, using 3 independent metallicity diagnostics. We demonstrate that neither SN selection effects (SN found via targeted vs. non-targeted surveys) nor the choice of strong-line metallicity diagnostic can cause the observed trend. Though our sample size is small, the observations are consistent with the hypothesis that low metal abundance is the cause of some massive stars becoming SN-GRB. We derive a cut-off metallicity of 0.2−0.6 Z, with the exact value depending on the adopted metallicity scale and solar abundance value.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Metallicities at the Sites of Nearby SN and Implications for the SN-GRB Connection
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Metallicities at the Sites of Nearby SN and Implications for the SN-GRB Connection
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Metallicities at the Sites of Nearby SN and Implications for the SN-GRB Connection
      Available formats
      ×

Copyright

References

Hide All
Galama, T. J., Vreeswijk, P. M., van Paradijs, J. et al. 1998, Nat, 395, 670
Guetta, D. & Della Valle, M. 2006, ApJ, 657, L73
Hjorth, J., Sollerman, J., Møller, P. et al. 2003, Nat, 423, 847
Kewley, L. J. & Dopita, M. A. 2002, ApJS, 142, 35
Kewley, L. J., Brown, W. R., Geller, M. J. et al. 2007, AJ, 133, 882
Leonard, D. C., Filippenko, A. V., Gates, E. L. et al. 2002, PASP, 114, 35
McGaugh, S. S. 1991, ApJ, 380, 140
Maeda, K., Kawabata, K., Mazzali, P. A. et al. 2008, Sci, 319, 1220
Meikle, W. P. S., Cummings, R. J., Geballe, T. R. et al. 1996, MNRAS, 281, 263
Modjaz, M., Stanek, K. Z., Garnavich, P. M. et al. 2006, ApJ, 645, L21
Modjaz, M. 2007, Ph. D. Thesis, Harvard University
Modjaz, M., Kewley, L., Kurshner, R. P. et al. 2008a AJ, 135, 1136
Modjaz, M., Kirshner, R. P., & Challis, P. 2008b, ApJL, submitted (arXiv:0801.0221)
Pettini, M. & Pagel, B. E. J. 2004, MNRAS, 348, L59
Soderberg, A. M., Nakar, E., Berger, E., & Kulkarni, S. R. 2006, ApJ, 638, 930
Stanek, K. Z., Matheson, T., Garnavisch, P. M. et al. 2003, ApJ 591, L17
Stanek, K. Z., Gnedin, O. Y., Beacom, J. F. et al. 2006, Acta Astronomica, 56, 333
Tremonti, C. A., Heckman, T. M., Kauffmann, G. et al. 2004, ApJ, 613, 898
Woosley, S. E. & Heger, A. 2006, ApJ, 637, 914
Yoon, S.-C. & Langer, N. 2005, A&A, 443, 643
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×
MathJax

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed