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Professor Sam Nolan's Outputs (92)

Search for TeV emission from the region around PSR B1706-44 with the HESS experiment (2005)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2005). Search for TeV emission from the region around PSR B1706-44 with the HESS experiment. Astronomy & Astrophysics, 432(1), L9-L12. https://doi.org/10.1051/0004-6361%3A200500008

The region around PSR B1706–44 has been observed with the HESS imaging atmospheric Cherenkov telescopes in 2003. No evidence for γ-ray emission in the TeV range was found at the pulsar position or at the radio arc which corresponds to the supernova r... Read More about Search for TeV emission from the region around PSR B1706-44 with the HESS experiment.

A new population of very high energy gamma-ray sources in the Milky Way (2005)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2005). A new population of very high energy gamma-ray sources in the Milky Way. Science, 307(5717), 1938-1942. https://doi.org/10.1126/science.1108643

Very high energy {gamma}-rays probe the long-standing mystery of the origin of cosmic rays. Produced in the interactions of accelerated particles in astrophysical objects, they can be used to image cosmic particle accelerators. A first sensitive surv... Read More about A new population of very high energy gamma-ray sources in the Milky Way.

Atmospheric sensing for the H.E.S.S. array (2005)
Presentation / Conference Contribution
Aye, K.-M., Brown, A., Chadwick, P., Hadjichristidis, C., Latham, I., Le Gallou, R., Mc Comb, T., Nolan, S., Noutsos, A., Orford, K., Osborne, J., Rayner, S., & Collaboration, H. (2005, February). Atmospheric sensing for the H.E.S.S. array. Presented at 2nd International Symposium on High Energy Gamma-Ray Astronomy, Heidelberg, Germany

Several atmospheric monitoring instruments have been installed at the H.E.S.S. gamma‐ray observatory in Namibia. Firstly, Heitronics KT19 infrared radiometers, aligned paraxially with the H.E.S.S. telescopes, measure the infrared radiation of the wat... Read More about Atmospheric sensing for the H.E.S.S. array.

H.E.S.S. observations of PKS 2155-304 (2005)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2005). H.E.S.S. observations of PKS 2155-304. Astronomy & Astrophysics, 430(3), 865-875. https://doi.org/10.1051/0004-6361%3A20041853

The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45sigma) at energies greater than 160 GeV, using the H.E.S.S. stereoscopic array of imaging air-Cherenkov telescopes in Namibia. A strong sig... Read More about H.E.S.S. observations of PKS 2155-304.

High-energy particle acceleration in the shell of a supernova remnant (2004)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2004). High-energy particle acceleration in the shell of a supernova remnant. Nature, 432(7013), 75-77. https://doi.org/10.1038/nature02960

A significant fraction of the energy density of the interstellar medium is in the form of high-energy charged particles (cosmic rays)1. The origin of these particles remains uncertain. Although it is generally accepted that the only sources capable o... Read More about High-energy particle acceleration in the shell of a supernova remnant.

Calibration of cameras of the H.E.S.S. detector (2004)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2004). Calibration of cameras of the H.E.S.S. detector. Astroparticle Physics, 22(2), 109-125. https://doi.org/10.1016/j.astropartphys.2004.06.006

H.E.S.S.—the high energy stereoscopic system—is a new system of large atmospheric Cherenkov telescopes for GeV/TeV astronomy. Each of the four telescopes of 107 m2 mirror area is equipped with a 960-pixel photomultiplier-tube camera. This paper descr... Read More about Calibration of cameras of the H.E.S.S. detector.

Very high energy gamma rays from the direction of Sagittarius A<SUP>*</SUP> (2004)
Journal Article
Aharonian, F., Akhperjanian, A., Aye, K., Bazer-Bachi, A., Beilicke, M., Benbow, W., …Wagner, S. (2004). Very high energy gamma rays from the direction of Sagittarius A*. Astronomy & Astrophysics, 425(1), L13-L17. https://doi.org/10.1051/0004-6361%3A200400055

We report the detection of a point-like source of very high energy (VHE) -rays coincident within 1' of Sgr A *, obtained with the HESS array of Cherenkov telescopes. The -rays exhibit a power-law energy spectrum with a spectral index of and a flux ab... Read More about Very high energy gamma rays from the direction of Sagittarius A<SUP>*</SUP>.

VHE observations of high energy peak BL Lacs (2001)
Presentation / Conference Contribution
Chadwick, P., Daniel, M., McComb, T., McKenny, J., Nolan, S., Orford, K., Osborne, J., & Rayner, S. (2001, December). VHE observations of high energy peak BL Lacs. Presented at HIGH ENERGY GAMMA-RAY ASTRONOMY Max Planck Inst Kernphys; DFG; Int Union Pure \& Appl Phys, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA

VHE gamma rays from binary systems (2001)
Presentation / Conference Contribution
Chadwick, P., Chaty, S., Daniel, M., Haswell, C., Kolb, U., McComb, T., McKenny, J., Nolan, S., Norton, A., Orford, K., Osborne, J., & Rayner, S. (2001, December). VHE gamma rays from binary systems. Presented at HIGH ENERGY GAMMA-RAY ASTRONOMY Max Planck Inst Kernphys; DFG; Int Union Pure \& Appl Phys, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA

A RANDOMIZED TRIAL OF INTRAVENOUS HEPARIN IN CONJUNCTION WITH ANISTREPLASE (ANISOYLATED PLASMINOGEN STREPTOKINASE ACTIVATOR COMPLEX) IN ACUTE MYOCARDIAL-INFARCTION - THE DUKE-UNIVERSITY CLINICAL CARDIOLOGY STUDY (DUCCS) .1. (1994)
Journal Article
Oconnor, C., Meese, R., Carney, R., Smith, J., Conn, E., Burks, J., …Saltzman, M. (1994). A RANDOMIZED TRIAL OF INTRAVENOUS HEPARIN IN CONJUNCTION WITH ANISTREPLASE (ANISOYLATED PLASMINOGEN STREPTOKINASE ACTIVATOR COMPLEX) IN ACUTE MYOCARDIAL-INFARCTION - THE DUKE-UNIVERSITY CLINICAL CARDIOLOGY STUDY (DUCCS) .1. Journal of the American College of Cardiology, 23(1), 11-18