MASS MEASUREMENT OF 45Cr AND ITS IMPACT ON THE Ca–Sc CYCLE IN X-RAY BURSTS

X. L. Yan; H. S. Xu; Yu. A. Litvinov; Y. H. Zhang; H. Schatz; X. L. Tu; K. Blaum; X. H. Zhou; B. H. Sun; J. J. He; Y. Sun; M. Wang; Y. J. Yuan; J. W. Xia; J. C. Yang; G. Audi; G. B. Jia; Z. G. Hu; X. W. Ma; R. S. Mao; B. Mei; P. Shuai; Z. Y. Sun; S. T. Wang; G. Q. Xiao; X. XU; T. Yamaguchi; Y. Yamaguchi; Y. D. Zang; H. W. Zhao; T. C. Zhao; W. Zhang; W. L. Zhan

doi:10.1088/2041-8205/766/1/L8

Letters

MASS MEASUREMENT OF ⁴⁵Cr AND ITS IMPACT ON THE Ca–Sc CYCLE IN X-RAY BURSTS

X. L. Yan^1,2,3, H. S. Xu¹, Yu. A. Litvinov^1,3,4, Y. H. Zhang¹, H. Schatz⁵, X. L. Tu¹, K. Blaum³, X. H. Zhou¹, B. H. Sun⁶, J. J. He¹, Y. Sun^1,7, M. Wang^1,3,8, Y. J. Yuan¹, J. W. Xia¹, J. C. Yang¹, G. Audi⁸, G. B. Jia^1,2, Z. G. Hu¹, X. W. Ma¹, R. S. Mao¹, B. Mei¹, P. Shuai^2,9, Z. Y. Sun¹, S. T. Wang^1,2, G. Q. Xiao¹, X. XU^1,2, T. Yamaguchi¹⁰, Y. Yamaguchi¹¹, Y. D. Zang¹, H. W. Zhao¹, T. C. Zhao¹, W. Zhang^1,2, and W. L. Zhan¹

Published 2013 March 5 • © 2013. The American Astronomical Society. All rights reserved.
The Astrophysical Journal Letters, Volume 766, Number 1 Citation X. L. Yan et al 2013 ApJL 766 L8 DOI 10.1088/2041-8205/766/1/L8

Download Article PDF

Article metrics

8432 Total downloads

Permissions

Get permission to re-use this article

Author affiliations

¹ Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

² Graduate University of Chinese Academy of Sciences, Beijing 100049, China

³ Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany

⁴ GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, D-64291 Darmstadt, Germany

⁵ National Superconducting Cyclotron Laboratory, Department of Physics and Astronomy and Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI 48824, USA

⁶ School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China

⁷ Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

⁸ CSNSM-IN2P3-CNRS, Université de Paris Sud, F-91405 Orsay, France

⁹ Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

¹⁰ Department of Physics, Saitama University, Saitama 338-8570, Japan

¹¹ RIKEN Nishina Center, RIKEN, Saitama 351-0198, Japan

Dates

Received 2013 February 8
Accepted 2013 February 16
Published 2013 March 5

Keywords

nuclear reactions, nucleosynthesis, abundances; X-rays: bursts

Journal RSS

Create or edit your corridor alerts

What are corridors?

ABSTRACT

Masses of neutron-deficient ⁵⁸Ni projectile fragments have been measured at the HIRFL-CSR facility in Lanzhou, China employing the isochronous mass spectrometry technique. Masses of a series of short-lived T_z = −3/2 nuclides including the ⁴⁵Cr nucleus have been measured with a relative uncertainty of about 10⁻⁶–10⁻⁷. The new ⁴⁵Cr mass turned out to be essential for modeling the astrophysical rp-process. In particular, we find that the formation of the predicted Ca–Sc cycle in X-ray bursts can be excluded.

Export citation and abstract BibTeX RIS

Previous article in issue

Next article in issue

Please wait… references are loading.