지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제33권 제2호
- 발행연도
- 2016.6
- 수록면
- 75 - 92 (18page)
- DOI
- http://dx.doi.org/10.5140/JASS.2016.33.2.75
이용수
초록· 키워드
오류제보하기
It is generally believed that the high energy emissions from isolated pulsars are emitted from relativistic electrons/positrons accelerated in outer magnetospheric accelerators (outergaps) via a curvature radiation mechanism, which has a simple exponential cut-off spectrum. However, many gamma-ray pulsars detected by the Fermi LAT (Large Area Telescope) cannot be fitted by simple exponential cut-off spectrum, and instead a sub-exponential is more appropriate. It is proposed that the realistic outergaps are non-stationary, and that the observed spectrum is a superposition of different stationary states that are controlled by the currents injected from the inner and outer boundaries. The Vela and Geminga pulsars have the largest fluxes among all targets observed, which allows us to carry out very detailed phase-resolved spectral analysis. We have divided the Vela and Geminga pulsars into 19 (the off pulse of Vela was not included) and 33 phase bins, respectively.
We find that most phase resolved spectra still cannot be fitted by a simple exponential spectrum: in fact, a sub-exponential spectrum is necessary. We conclude that non-stationary states exist even down to the very fine phase bins.
목차
등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
Abdo AA / 2010 / The Vela pulsar: results from the first year of Fermi LAT observations / Astrophys. J 713:154~165
Abdo AA / 2010 / Fermi-LAT observations of the Geminga pulsar / Astrophys. J 720:272~283
Cheng KS / 1996 / General radiation formulae for a relativistic charged particle moving in curved magnetic field lines: the synchrocurvature radiation mechanism / Astrophys. J 463:271~283
Cheng KS / 1986 / Energetic radiation from rapidly spinning pulsars. I. Outer magnetosphere gaps. II. VELA and Crab / Astrophys. J. 300:500~539
K. S. Cheng / 2000 / A Three‐dimensional Outer Magnetospheric Gap Model for Gamma‐Ray Pulsars: Geometry, Pair Production, Emission Morphologies, and Phase‐resolved Spectra / The Astrophysical Journal 537(2):964~976
Abdo AA / 2010 / Fermi-LAT observations of the Geminga pulsar / Astrophys. J 720:272~283
Cheng KS / 1996 / General radiation formulae for a relativistic charged particle moving in curved magnetic field lines: the synchrocurvature radiation mechanism / Astrophys. J 463:271~283
Cheng KS / 1986 / Energetic radiation from rapidly spinning pulsars. I. Outer magnetosphere gaps. II. VELA and Crab / Astrophys. J. 300:500~539
K. S. Cheng / 2000 / A Three‐dimensional Outer Magnetospheric Gap Model for Gamma‐Ray Pulsars: Geometry, Pair Production, Emission Morphologies, and Phase‐resolved Spectra / The Astrophysical Journal 537(2):964~976
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Theoretical Study of Gamma-ray Pulsars
Journal of Astronomy and Space Sciences
2016 .06
-
Radio-quiet Gamma-ray Pulsars
Journal of Astronomy and Space Sciences
2016 .09
-
On the Spectral Shape of Non-recycled γ-ray Pulsars
Journal of Astronomy and Space Sciences
2016 .06
-
Exploring the Extra Component in the Gamma-ray Emission of the New Redback Candidate 3FGL J2039.6-5618
Journal of Astronomy and Space Sciences
2016 .06
-
Comparative analysis of yeast cell viability at exponential and stationary growth phases
분석과학
2022 .08
-
STUDY THE SPECTRUM OF THE UPPER TRIANGULAR MATRIX U(p, 0, q, 0, r) OVER THE SEQUENCE SPACES c0 AND c
Proceedings of the Jangjeon Mathematical Society
2022 .01
-
Spectrum Conversion Technology for Solar Spectrum
한국진공학회 학술발표회초록집
2018 .08
-
고정오염원에서의 미세먼지(PM10, PM2.5) 측정방법 현황 및 배출특성
한국대기환경학회 학술대회논문집
2015 .11
-
고정오염원에서의 미세먼지 배출농도 분포
한국대기환경학회 학술대회논문집
2015 .11
-
Development of a Humidity Pretreatment Device for Monitoring PM2.5 Emitted from Stationary Sources
한국대기환경학회 학술대회논문집
2023 .10
-
Development of a Humidity Pretreatment Device for Monitoring PM2.5 Emitted from Stationary Sources
한국대기환경학회 학술대회논문집
2023 .10
-
The Spectral Sharpness Angle of Gamma-ray Bursts
Journal of Astronomy and Space Sciences
2016 .06
-
On the Fine Spectrum of the Lower Triangular Matrix over the Hahn Sequence Space
Kyungpook Mathematical Journal
2017 .01
-
A TYPE OF THE EXPONENTIAL OF A MATRIX OVER DUAL QUATERNION IN CLIFFORD ANALYSIS
Nonlinear Functional Analysis and Applications
2018 .09
-
Gamma-ray Emission from Globular Clusters
Journal of Astronomy and Space Sciences
2016 .03
-
Analysis on double peak phenomena in transmission frequency spectrum of cut-off probe
한국진공학회 학술발표회초록집
2016 .08
-
Stationary bootstrapping for structural break tests for a heterogeneous autoregressive model
CSAM(Communications for Statistical Applications and Methods)
2017 .07
-
국내공정시험기준과 ISO 방법을 이용한 고정오염원 미세먼지 (PM10, PM2.5) 측정 방법 및 입경분율 비교 : 석탄화력발전소, 석유정제시설 중심으로
한국대기환경학회지(국문)
2017 .08
-
Characterization of tempered exponential dichotomies
대한수학회지
2020 .01
-
대기배출시설의 미세먼지(PM10, PM2.5) 배출 특성에 관한 연구
한국대기환경학회 학술대회논문집
2019 .11
이 논문의 저자 정보
최근 본 자료
댓글(0)
0