منابع مشابه
Suzaku Detection of an Intense X-Ray Flare from an A-Type Star, HD 161084
We report on a serendipitous detection of an intense X-ray flare from the Tycho reference source on HD 161084 during a Suzaku observation of the galactic center region for 20 ks. The X-ray Imaging Spectrometer recorded a flare from this A1-type dwarf or subgiant star with a flux of 1.4 10 12 erg s 1 cm 2 (0.5–10 keV) and a decay time scale of 0.5 hr. The spectrum is hard with a prominent Fe XXV...
متن کامل[Severe flare of Behcet's disease with intense mucucutaneous manifestations].
Behcet's disease is a multisystemic inflammatory disease with various manifestations at the skin level, especially in the form of acne-like lesions or erythema nodosum. Susceptibility to this disease is strongly linked to the presence of the HLA_B51 allele, although certain environmental factors such as infectious agents have also been implicated in its pathogenesis. We present the case of a pa...
متن کاملTHE TeV GAMMA-RAY SPECTRUM OF MARKARIAN 421 DURING AN INTENSE FLARE
We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its most intense recorded TeV flare, on 1996 May 7. The spectrum is well fitted by a power law with an exponent of (statistical and systematic errors). The spectrum extends above 5 TeV with no evidence 22.56 5 0.07 5 0.1 for a cutoff, favoring determinations of the extragalactic infrared energy dens...
متن کاملA Rapid X-ray Flare in the Radio-loud Narrow Line Quasar Pks 0558-504
We report the detection of a very short time scale flare in the radio-loud narrow line quasars PKS 0558-504 by using ASCA. The X-ray count rates increased and decreased by a factor of two in 33 minutes, and possibly by 40% in as short as two minutes during this flare, confirming that such flare event does occur in this object with imaging detectors. The implied largest rate of change in luminos...
متن کاملImaging observations of SN1987A at gammaray energies
The Caltech imaging q-ray telescope was launched by balloon from Alice Springs, NT, Australia for observations of SN1987A during the period 18.80-18.87 November 1987 UT. The preliminary results presented here are derived from 8200 seconds of instrument livetime on the supernova and 2500 seconds on the Crab Nebula and pulsar at a float altitude of 37 kin. We have obtained the first images of the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1997
ISSN: 0004-637X,1538-4357
DOI: 10.1086/303639