시작하기     To Survive in the Universe    
Inhabited Sky
    News@Sky     천체사진     컬렉션     포럼     Blog New!     질문및답변     출판     로그인  

HD 17644


내용

사진

사진 업로드

DSS Images   Other Images


관련 글

Analysis of the flare of May 16th, 1981 with a complex space-time structure using optical, X-ray data and radio observations
A comprehensive analysis of the flare event of May 16, 1981 was carriedout using burst records, heliograms, and dynamic spectra of radioemission in the frequency band 1000-45 MHz. Observations of X-rayemission obtained from the Prognoz-8 satellite were also used in theanalysis. Attention is given to the location and dynamic characteristicsof the H-alpha knots accompanied by a complicated multicomponent timeprofile and a strongly varying spectrum of X-ray and microwave bursts. Asubstantial change in the frequency spectrum of the microwave emissionwas observed during the development of the flare, with the maximumshifting towards the short-wave part of the cm band when H-alphaemission approached the sunspots. In the pre-maximum phase of the flare,sharp changes in the rate of increase of soft X-rays were correlatedwith the brightening of existing and upsurging new knots of H-alphaemission. The radio spectra for different frequency bands are reproducedin photographic form.

새 글 등록


관련 링크

  • - 링크가 없습니다. -
새 링크 등록


다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:시계자리
적경:02h48m01.27s
적위:-51°48'55.7"
가시등급:9.216
적경상의 고유운동:23.5
적위상의 고유운동:12.1
B-T magnitude:9.892
V-T magnitude:9.272

천체목록:
일반명   (Edit)
HD 1989HD 17644
TYCHO-2 2000TYC 8057-230-1
USNO-A2.0USNO-A2 0375-00898813
HIPHIP 13075

→ VizieR에서 더 많은 목록을 가져옵니다.