Add to ORKGWe present recent ROSAT, ASCA and SAX observations of intermediate BL Lac objects (IBLs), i.e. BL Lacs which are located between high-energy and low-energy peaked BL Lac objects with respect to log (S<sub>x</sub>/S<sub>r</sub>). Both, the statistical properties of IBLs from the RGB sample and a detailed broad band X-ray spectral analysis of two objects (1424+2401, 1055+5644), point towards a continuous distribution of synchrotron emission peak frequencies among BL Lac objects
Received....; accepted.... Context. Many of the extragalactic sources detected in γ rays at TeV ener...
The unification of X-ray and radio selected BL Lacs has been an outstanding problem in the blazar re...
Context. The study of BL Lac objects (BLL) detected in gamma-rays gives insights on the acceleration...
We present recent ROSAT, ASCA and SAX observations of intermediate BL Lac objects (IBLs), i.e. BL La...
We present recent X-ray observations of intermediate BL Lac objects (IBLs), i.e. BL Lacs which are l...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
We present BeppoSAX LECS, MECS, and PDS spectra of eleven X-ray selected BL Lacertae objects. Combin...
We present a new well defined sample of BL Lac objects selected from the ROSAT All-Sky Survey (RASS)...
Combining newly identified and previously known BL Lacs from the RASS-Green Bank (RGB) catalog, we p...
We performed an observational program with the X-ray satellite BeppoSAX, to study objects with extr...
ROSAT data as well as archival radio and optical data are used for a broad band study of a large gro...
ROSAT observations of a homogeneous sample of radio{selected BL Lac ob-jects are presented. Results ...
We present the analysis of archival data from ROSAT and ASCA of a serendipitous BL Lac object PKS 23...
We performed an observational program with the X-ray satellite BeppoSAX, to study objects with extre...
ROSAT observations of a homogeneous sample of radio--selected BL Lac objects are presented. Results ...
Received....; accepted.... Context. Many of the extragalactic sources detected in γ rays at TeV ener...
The unification of X-ray and radio selected BL Lacs has been an outstanding problem in the blazar re...
Context. The study of BL Lac objects (BLL) detected in gamma-rays gives insights on the acceleration...
We present recent ROSAT, ASCA and SAX observations of intermediate BL Lac objects (IBLs), i.e. BL La...
We present recent X-ray observations of intermediate BL Lac objects (IBLs), i.e. BL Lacs which are l...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
We present BeppoSAX LECS, MECS, and PDS spectra of eleven X-ray selected BL Lacertae objects. Combin...
We present a new well defined sample of BL Lac objects selected from the ROSAT All-Sky Survey (RASS)...
Combining newly identified and previously known BL Lacs from the RASS-Green Bank (RGB) catalog, we p...
We performed an observational program with the X-ray satellite BeppoSAX, to study objects with extr...
ROSAT data as well as archival radio and optical data are used for a broad band study of a large gro...
ROSAT observations of a homogeneous sample of radio{selected BL Lac ob-jects are presented. Results ...
We present the analysis of archival data from ROSAT and ASCA of a serendipitous BL Lac object PKS 23...
We performed an observational program with the X-ray satellite BeppoSAX, to study objects with extre...
ROSAT observations of a homogeneous sample of radio--selected BL Lac objects are presented. Results ...
Received....; accepted.... Context. Many of the extragalactic sources detected in γ rays at TeV ener...
The unification of X-ray and radio selected BL Lacs has been an outstanding problem in the blazar re...
Context. The study of BL Lac objects (BLL) detected in gamma-rays gives insights on the acceleration...