Lampeitl, H., Nichol, R. C., Giannantonio, T., Shapiro, C., Bassett, B., ...
We present an analysis of the luminosity distances of Type Ia Supernovae from the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey in conjunction with other intermediate redshift (z97% level...
Sollerman, J., Mörtsell, E., Davis, T. M., Blomqvist, M., Bassett, B., Becker, A. C., ...
We use the new SNe Ia discovered by the SDSS-II Supernova Survey together with additional supernova datasets as well as observations of the cosmic microwave background and baryon acoustic...
F. A. Aharonian, M. Hemberger, G. Hermann, W. Hofmann, J. Kettler, A. Kohnle, ...
The HEGRA system of Imaging Atmospheric Cherenkov Telescopes (IACTs) has been used since the beginning of 1997 for a comprehensive study of the gamma-ray emission from the BL Lac objects Mkn 501 and...
Dilday, Benjamin, Kessler, R., Frieman, J. A., Holtzman, J., Marriner, J., Miknaitis, G., ...
We present a measurement of the rate of type Ia supernovae (SNe Ia) from the first of three seasons of data from the SDSS-II Supernova Survey. For this measurement, we include 17 SNe Ia at redshift...
Proceedings of ICRC 2001: 2407 c (2007)
Copernicus Gesellschaft Icrc, F. Lucarelli, A. Kohnle, A. Konopelko, H. Lampeitl, W. Hofmann, ...
The HEGRA system of 5 imaging atmospheric Cerenkov telescopes (IACT) has an energy threshold of about 500 GeV in observations of #-rays at zenith. We have made observations of the Crab Nebula for a...
Proceedings of ICRC 2001: 2348 c (2007)
Copernicus Gesellschaft Icrc, H. Lampeitl, K. Bernlöhr, A. Daum, W. Hofmann, A. Konopelko, ...
The HEGRA-IACT-system with a FoV of 1.5 deg radius has been used for surveying one quater of the Galactic disc in respect to point sources, moderately extended sources and for diffuse emission in the...
The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary (2007)
Frieman, Joshua A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., ...
The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using...
The Sloan Digital Sky Survey-II Supernova Survey: Search Algorithm and Follow-up Observations (2007)
Sako, Masao, Bassett, B., Becker, A., Cinabro, D., DeJongh, F., Depoy, D. L., ...
The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 sq. deg. region along the celestial equator during its first two seasons of a...
The Peculiar SN 2005hk: Do Some Type Ia Supernovae Explode as Deflagrations? (2006)
Phillips, M. M., Li, W., Frieman, J. A., Blinnikov, S. I., DePoy, D., Prieto, J. L., ...
We present extensive u'g'r'i'BVRIYJHKs photometry and optical spectroscopy of SN 2005hk. These data reveal that SN 2005hk was nearly identical in its observed properties to SN 2002cx, which has been...
The Sloan Digital Sky Survey Monitor Telescope Pipeline (2006)
Tucker, D. L., Kent, S., Richmond, M. W., Annis, J., Smith, J. A., Allam, S. S., ...
The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO),...
Aharonian, F., Akhperjanian, A., Beilicke, M., Bernlöhr, K., Börst, H. G., Bojahr, H., ...
In the first month of 2001 the AGN Mkn 421 showed highly variable, strong TeV activity at flux levels frequently exceeding 1 Crab. Here we present the light curve and energy spectrum of Mkn 421 as...
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Is the giant radio galaxy M 87 a TeV gamma-ray emitter? (2003)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Is the giant radio galaxy M 87 a TeV gamma-ray emitter? (2003)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Konopelko, A., Lucarelli, F., Lampeitl, H., Hofmann, W.
In this paper, we present the results of Monte Carlo simulations of atmospheric showers induced by diffuse gamma rays as detected by the high-energy gamma ray astronomy (HEGRA) system of five imaging...
An unidentified TeV source in the vicinity of Cygnus OB2 (2002)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2002
TeV gamma rays from the blazar H 1426+428 and the diffuse extragalactic background radiation (2002)
Aharonian, Felix A., Akhperjanian, A., Barrio, J. A., Beilicke, M., Bernlohr, K., Borst, H., ...
© The European Southern Observatory 2002
An unidentified TeV source in the vicinity of Cygnus OB2 (2002)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2002
TeV gamma rays from the blazar H 1426+428 and the diffuse extragalactic background radiation (2002)
Aharonian, Felix A., Akhperjanian, A., Barrio, J. A., Beilicke, M., Bernlohr, K., Borst, H., ...
© The European Southern Observatory 2002
Correlated Intense X-Ray And Tev Activity Of Markarian 501 In 1998 June (2000)
R. M. Sambruna, F. A. Aharonian, H. Krawczynski, A. G. Akhperjanian, J. A. Barrio, K. Bernlo Hr, ...
We present exactly simultaneous X-ray and TeV monitoring with RXT E and HEGRA of the TeV blazar Mrk 501 during 15 days in 1998 June. After an initial period of very low ux at both wavelengths, the...
Search for diffuse VHE gamma rays from the Galactic plane with the HEGRA IACT system (1999)
Lampeitl Konopelko For, H. Lampeitl
The Imaging Air Cherenkov Telescope (IACT) technique has emerged in the last years as a powerful tool for the detection of VHE #-rays of cosmic origin. In order to map extended sky regions, a large...
The Sloan Digital Sky Survey monitor telescope pipeline
Kent, S., Richmond, M.W., Annis, J., Smith, J.A., Allam, S.S., Rodgers, C.T., ...
The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO),...