عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq2445909487
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
SuperTiger Elemental Abundances for the Charge Range...
نام عام مواد
[Thesis]
نام نخستين پديدآور
Walsh, Nathan Elliot
نام ساير پديدآوران
Israel, Martin H
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Washington University in St. Louis
تاریخ نشرو بخش و غیره
2020
مشخصات ظاهری
نام خاص و کميت اثر
185
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
Washington University in St. Louis
امتياز متن
2020
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
On December 8, 2012 the SuperTIGER (Super Trans-Iron Galactic Element Recorder) instrument was launched from Williams Field, Antarctica on a long-duration balloon flight that lasted 55 days and maintained a mean altitude of 125,000 feet. SuperTIGER measured the relative abundances of Galactic cosmic-ray (GCR) nuclei with high statistical precision and well resolved individual element peaks from usd_usdNe to usd_{40}usdZr. SuperTIGER also made exploratory measurements of the relative abundances up to usd_{56}usdBa. The SuperTIGER instrument determines the charge (usdZusd) and energy of GCR using two independent detector stacks composed of a scintillating fiber hodoscope, two Cherenkov light detectors and three scintillation light detectors. The SuperTIGER data is analyzed to account for instrument effects and then corrected for nuclear interactions and energy losses that occur within the instrument, atmosphere and interstellar medium to obtain relative abundances at the GCR source. The SuperTIGER data analysis reported in Murphy et al. 2016\cite{Murphyetal:2016} was performed prior to the Antarctic recovery effort in 2015 and only included data transmitted during line-of-site periods and via satellite telemetry. The current analysis includes additional data saved to on-board solid-state drives that were retrieved during recovery. Although the statistics are low for elements heavier than usd_{40}usdZr, we show relative abundances of charges usd41\leq Z\leq56usd with individual element resolution. The relative abundances of elements usd_{40}usdZr through usd_{60}usdNd are of particular interest because they are likely formed both by supernova explosions and binary neutron star mergers. A well resolved measurement of this charge range can constrain the contributions to the GCR composition from both these possible sources. The GCR relative elemental abundances derived in this thesis are compared to satellite measurements after accounting for the effects of traversing the instrument and atmosphere. Further work is required to accurately constrain the GCR source composition up to usd_{56}usdBa.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Astrophysics
موضوع مستند نشده
Cosmic rays
موضوع مستند نشده
Neutron stars
موضوع مستند نشده
Physics
موضوع مستند نشده
Supernovae
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Israel, Martin H
مستند نام اشخاص تاييد نشده
Walsh, Nathan Elliot
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
