First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons

Randhawa, J.  S.; Ayyad, Y.; Mittig, W.; Meisel, Z.; Ahn, T.; Aguilar, S.; Alvarez-Pol, H.; Bardayan, D.  W.; Bazin, D.; Beceiro-Novo, S.; Blankstein, D.; Carpenter, L.; Cortesi, M.; Cortina-Gil, D.; Gastis, P.; Hall, M.; Henderson, S.; Kolata, J.  J.; Mijatovic, T.; Ndayisabye, F.; O’Malley, P.; Pereira, J.; Pierre, A.; Robert, H.; Santamaria, C.; Schatz, H.; Smith, J.; Watwood, N.; Zamora, J.  C.

doi:10.1103/physrevlett.125.202701

Title: First Direct Measurement of ^Mg(α,p)²⁵Al and Implications for X-Ray Burst Model-Observation Comparisons

Abstract

Type-I x-ray bursts can reveal the properties of an accreting neutron star system when compared with astrophysics model calculations. However, model results are sensitive to a handful of uncertain nuclear reaction rates, such as ²²Mg(α , p). We report the first direct measurement of ²²Mg(α , p), performed with the Active Target Time Projection Chamber. The corresponding astrophysical reaction rate is orders of magnitude larger than determined from a previous indirect measurement in a broad temperature range. Overall, our new measurement suggests a less-compact neutron star in the source GS1826-24.

Authors:

^[1]; Ayyad, Y. ^[2]; Mittig, W. ^[3]; Meisel, Z. ^[4]; Ahn, T. ^[5]; Aguilar, S. ^[5]; Alvarez-Pol, H. ^[6]; Bardayan, D. W. ^[5]; Bazin, D. ^[2]; Beceiro-Novo, S. ^[7]; Blankstein, D. ^[5]; Carpenter, L. ^[2]; Cortesi, M. ^[2]; Cortina-Gil, D. ^[6]; Gastis, P. ^[8]; Hall, M. ^[5]; Henderson, S. ^[5]; Kolata, J. J. ^[5]; Mijatovic, T. ^[9]; Ndayisabye, F. ^[2] more »

Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States). Center for the Evolution of the Elements (JINA-CEE)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Michigan State Univ., East Lansing, MI (United States)
Ohio Univ., Athens, OH (United States). Inst. of Nuclear and Particle Physics
Univ. of Notre Dame, IN (United States)
Univ. Santiago de Compostela (Spain). IGFAE
Michigan State Univ., East Lansing, MI (United States)
Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States). Center for the Evolution of the Elements (JINA-CEE); Central Michigan Univ., Mount Pleasant, MI (United States)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Ruđer Bošković Inst., Zagreb (Croatia)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States). Center for the Evolution of the Elements (JINA-CEE); Michigan State Univ., East Lansing, MI (United States)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.; Univ. de Sao Paulo (Brazil). Inst. de Fisica

Publication Date:: Tue Nov 10 00:00:00 EST 2020

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); FAPESP

OSTI Identifier:: 1823254

Grant/Contract Number:: AC02-05CH11231; MRI-0923087; PHY-140444; PHY-1565546; PHY-1713857; PHY-1430152; PHY-1102511; PHY-1913554; 14-01343; FG02-88ER40387; SC0019042; 2018/04965-4

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 125; Journal Issue: 20; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; nuclear astrophysics; nuclear physics of explosive environments; nuclear reactions

Citation Formats


                    Randhawa, J.  S., Ayyad, Y., Mittig, W., Meisel, Z., Ahn, T., Aguilar, S., Alvarez-Pol, H., Bardayan, D.  W., Bazin, D., Beceiro-Novo, S., Blankstein, D., Carpenter, L., Cortesi, M., Cortina-Gil, D., Gastis, P., Hall, M., Henderson, S., Kolata, J.  J., Mijatovic, T., Ndayisabye, F., O’Malley, P., Pereira, J., Pierre, A., Robert, H., Santamaria, C., Schatz, H., Smith, J., Watwood, N., and Zamora, J.  C. First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons.  United States: N. p., 2020. 
Web.  doi:10.1103/physrevlett.125.202701.

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                    Randhawa, J.  S., Ayyad, Y., Mittig, W., Meisel, Z., Ahn, T., Aguilar, S., Alvarez-Pol, H., Bardayan, D.  W., Bazin, D., Beceiro-Novo, S., Blankstein, D., Carpenter, L., Cortesi, M., Cortina-Gil, D., Gastis, P., Hall, M., Henderson, S., Kolata, J.  J., Mijatovic, T., Ndayisabye, F., O’Malley, P., Pereira, J., Pierre, A., Robert, H., Santamaria, C., Schatz, H., Smith, J., Watwood, N., & Zamora, J.  C. First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons.  United States.  https://doi.org/10.1103/physrevlett.125.202701

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                    Randhawa, J.  S., Ayyad, Y., Mittig, W., Meisel, Z., Ahn, T., Aguilar, S., Alvarez-Pol, H., Bardayan, D.  W., Bazin, D., Beceiro-Novo, S., Blankstein, D., Carpenter, L., Cortesi, M., Cortina-Gil, D., Gastis, P., Hall, M., Henderson, S., Kolata, J.  J., Mijatovic, T., Ndayisabye, F., O’Malley, P., Pereira, J., Pierre, A., Robert, H., Santamaria, C., Schatz, H., Smith, J., Watwood, N., and Zamora, J.  C. Tue .  
"First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons".  United States.  https://doi.org/10.1103/physrevlett.125.202701.  https://www.osti.gov/servlets/purl/1823254.

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@article{osti_1823254,

  title        = {First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons},

  author       = {Randhawa, J.  S. and Ayyad, Y. and Mittig, W. and Meisel, Z. and Ahn, T. and Aguilar, S. and Alvarez-Pol, H. and Bardayan, D.  W. and Bazin, D. and Beceiro-Novo, S. and Blankstein, D. and Carpenter, L. and Cortesi, M. and Cortina-Gil, D. and Gastis, P. and Hall, M. and Henderson, S. and Kolata, J.  J. and Mijatovic, T. and Ndayisabye, F. and O’Malley, P. and Pereira, J. and Pierre, A. and Robert, H. and Santamaria, C. and Schatz, H. and Smith, J. and Watwood, N. and Zamora, J.  C.},

  abstractNote = {Type-I x-ray bursts can reveal the properties of an accreting neutron star system when compared with astrophysics model calculations. However, model results are sensitive to a handful of uncertain nuclear reaction rates, such as 22Mg(α , p). We report the first direct measurement of 22Mg(α , p), performed with the Active Target Time Projection Chamber. The corresponding astrophysical reaction rate is orders of magnitude larger than determined from a previous indirect measurement in a broad temperature range. Overall, our new measurement suggests a less-compact neutron star in the source GS1826-24.},

  doi          = {10.1103/physrevlett.125.202701},

  journal      = {Physical Review Letters},

  number       = 20,

  volume       = 125,

  place        = {United States},

  year         = {Tue Nov 10 00:00:00 EST 2020},

  month        = {Tue Nov 10 00:00:00 EST 2020}

}

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Title: First Direct Measurement of Mg(α,p)25Al and Implications for X-Ray Burst Model-Observation Comparisons

Abstract

Citation Formats

Consistent Modeling of GS 1826-24 X-Ray Bursts for Multiple Accretion Rates Demonstrates the Possibility of Constraining rp -process Reaction Rates journal, June 2018

Influence of Nuclear Reaction Rate Uncertainties on Neutron Star Properties Extracted from X-Ray Burst Model–Observation Comparisons journal, February 2019

Thermonuclear Burst Observations for Model Comparisons: A Reference Sample journal, January 2017

Constraining the Neutron Star Compactness: Extraction of the Al 23 ( p , γ ) Reaction Rate for the r p Process journal, June 2019

Stellar Explosions: Hydrodynamics and Nucleosynthesis book, January 2015

Commissioning the A1900 projectile fragment separator journal, May 2003

Dependence of X-Ray Burst Models on Nuclear Reaction Rates journal, October 2016

Nuclear physics of the outer layers of accreting neutron stars journal, July 2018

High-precision 28 Si( p , t ) 26 Si reaction to determine 22 Mg( α , p ) 25 Al reaction rates journal, August 2011

Commissioning of the Active-Target Time Projection Chamber journal, December 2017

The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts journal, June 2010

Nuclear Reactions in the Crusts of Accreting Neutron Stars journal, May 2018

Improved global α-optical model potentials at low energies journal, August 2002

LISE++: Radioactive beam production with in-flight separators journal, October 2008

Novel particle tracking algorithm based on the Random Sample Consensus Model for the Active Target Time Projection Chamber (AT-TPC) journal, February 2018

The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis journal, September 2008

Next-generation experiments with the Active Target Time Projection Chamber (AT-TPC) journal, February 2020

The Nuclear Reaction Waiting Points: 22 Mg, 26 Si, 30 S, and 34 Ar and Bolometrically Double-peaked Type I X-Ray Bursts journal, May 2004

Constraints on Bygone Nucleosynthesis of Accreting Neutron Stars journal, March 2017

GET: A generic electronics system for TPCs and nuclear physics instrumentation journal, April 2018

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X-ray binaries journal, October 2006

Title: First Direct Measurement of ^Mg(α,p)²⁵Al and Implications for X-Ray Burst Model-Observation Comparisons

Consistent Modeling of GS 1826-24 X-Ray Bursts for Multiple Accretion Rates Demonstrates the Possibility of Constraining rp -process Reaction Rates
journal, June 2018

Influence of Nuclear Reaction Rate Uncertainties on Neutron Star Properties Extracted from X-Ray Burst Model–Observation Comparisons
journal, February 2019

Thermonuclear Burst Observations for Model Comparisons: A Reference Sample
journal, January 2017

Constraining the Neutron Star Compactness: Extraction of the ${}^{23}{Al} (p, γ)$ Reaction Rate for the $r p$ Process
journal, June 2019

Stellar Explosions: Hydrodynamics and Nucleosynthesis
book, January 2015

Commissioning the A1900 projectile fragment separator
journal, May 2003

Dependence of X-Ray Burst Models on Nuclear Reaction Rates
journal, October 2016

Nuclear physics of the outer layers of accreting neutron stars
journal, July 2018

High-precision $^{28}$ Si( $p$ , $t$ ) $^{26}$ Si reaction to determine $^{22}$ Mg( $α$ , $p$ ) $^{25}$ Al reaction rates
journal, August 2011

Commissioning of the Active-Target Time Projection Chamber
journal, December 2017

The jina Reaclib Database: its Recent Updates and Impact on Type-I X-Ray Bursts
journal, June 2010

Nuclear Reactions in the Crusts of Accreting Neutron Stars
journal, May 2018

Improved global α-optical model potentials at low energies
journal, August 2002

LISE++: Radioactive beam production with in-flight separators
journal, October 2008

Novel particle tracking algorithm based on the Random Sample Consensus Model for the Active Target Time Projection Chamber (AT-TPC)
journal, February 2018

The Effects of Variations in Nuclear Processes on Type I X‐Ray Burst Nucleosynthesis
journal, September 2008

Next-generation experiments with the Active Target Time Projection Chamber (AT-TPC)
journal, February 2020

The Nuclear Reaction Waiting Points: ²² Mg, ²⁶ Si, ³⁰ S, and ³⁴ Ar and Bolometrically Double-peaked Type I X-Ray Bursts
journal, May 2004

Constraints on Bygone Nucleosynthesis of Accreting Neutron Stars
journal, March 2017

GET: A generic electronics system for TPCs and nuclear physics instrumentation
journal, April 2018

Relevant energy ranges for astrophysical reaction rates
journal, April 2010

X-ray binaries
journal, October 2006