Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://hea-www.harvard.edu/ChaMPlane/early_results.html
Дата изменения: Unknown Дата индексирования: Mon Oct 1 21:56:15 2012 Кодировка: Поисковые слова: m 97 |
![]() |
![]() ![]() |
|
Early ResultsGRO J0422+32 is a Black Hole X-ray Nova (BHXN) discovered in outburst by GRO/BATSE on 5 August 1992. Dynamical data establish that its primary is a black hole with mass that likely exceeds ~ 9 M_solar and may be as high as ~ 28 M_solar. Chandra observation of J0422+32 for 20 ksec was made on October 10, 2000 as part of a study of black hole event horizons (PI: McClintock). 66 X-ray sources (0.5-7.0 keV) were detected on 5 ACIS chips (I1-4 & S2), including J0422+32 which was placed at the telescope aim point on ACIS-I3. Photometry of J0422+32 was done on December 5, 2000 using KPNO/Mosaic with V, R, I and H-alpha filters. Following images show the ChaMPlane early results of the J0422_32 field. |