A SIGNATURE OF RELATIVISTIC ELECTRON-POSITRON BEAMS IN BL LACERTAE OBJECTS

被引:13
作者
XIE, GZ
LIU, BF
WANG, JC
机构
[1] CCAST,WORLD LAB,CTR THEORET PHYS,BEIJING,PEOPLES R CHINA
[2] YUNNAN UNIV,KUNMING 650091,PEOPLES R CHINA
关键词
BL LACERTAE OBJECTS; GENERAL; ELEMENTARY PARTICLES; GALAXIES; JETS; RADIATION MECHANISMS; NONTHERMAL;
D O I
10.1086/176463
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
BL Lacertae objects have been observed to vary in all wavebands on various timescales ranging from years to hours. Compton Gamma Ray Observatory (CGRO) observations have revealed intense gamma-ray emission from several BL Lac Objects. We show here that there is a significant correlation between the Doppler-corrected minimal X-ray luminosity and the equivalent timescale of X-ray variability extrapolated from the observed optical variability for BL Lac objects. We interpret this as evidence for relativistic electron-positron beams in BL Lac objects.
引用
收藏
页码:50 / 54
页数:5
相关论文
共 31 条
[11]   SPECTRAL PROPERTIES OF BLAZARS .1. OBJECTS OBSERVED IN THE FAR-ULTRAVIOLET [J].
GHISELLINI, G ;
MARASCHI, L ;
TANZI, EG ;
TREVES, A .
ASTROPHYSICAL JOURNAL, 1986, 310 (01) :317-324
[12]  
GIOMMI P, 1987, ADV SPACE RES, V8, P79
[13]  
GIOMMI P, 1990, APJ, V358, P432
[14]   GAMMA-RAY EMISSION OF ACTIVE GALACTIC NUCLEI AS A SIGNATURE OF RELATIVISTIC ELECTRON-POSITRON BEAMS [J].
HENRI, G ;
PELLETIER, G ;
ROLAND, J .
ASTROPHYSICAL JOURNAL, 1993, 404 (02) :L41-L44
[15]   ACTIVE EXTRAGALACTIC SOURCES - NEARLY SIMULTANEOUS OBSERVATIONS FROM 20 CENTIMETERS TO 1400 A [J].
LANDAU, R ;
GOLISCH, B ;
JONES, TJ ;
JONES, TW ;
PEDELTY, J ;
RUDNICK, L ;
SITKO, ML ;
KENNEY, J ;
ROELLIG, T ;
SALONEN, E ;
URPO, S ;
SCHMIDT, G ;
NEUGEBAUER, G ;
MATTHEWS, K ;
ELIAS, JH ;
IMPEY, C ;
CLEGG, P ;
HARRIS, S .
ASTROPHYSICAL JOURNAL, 1986, 308 (01) :78-92
[16]   THE RADIO-OPTICAL-X-RAY SPECTRAL FLUX DISTRIBUTIONS OF BLAZARS [J].
LEDDEN, JE ;
ODELL, SL .
ASTROPHYSICAL JOURNAL, 1985, 298 (02) :630-643
[17]  
MACCACARO T, 1988, LECTURE NOTES PHYSIC, V334, P222
[18]  
MACCAGNI D, 1988, LECTURE NOTES PHYSIC, V334, P281
[19]   SPECTRAL PROPERTIES OF BLAZARS .2. AN X-RAY OBSERVED SAMPLE [J].
MARASCHI, L ;
GHISELLINI, G ;
TANZI, EG ;
TREVES, A .
ASTROPHYSICAL JOURNAL, 1986, 310 (01) :325-333
[20]  
MARASCHI L, 1988, MEM SOC ASTRON ITAL, V59, P277