Professor Paula Chadwick's Outputs (216)

Simultaneous HESS and Chandra observations of Sagitarius A star during an X-ray flare (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Becherini, Y., Behera, B., …Zech, A. (2008). Simultaneous HESS and Chandra observations of Sagitarius A star during an X-ray flare. Astronomy and Astrophysics, 492(1), L25-L28. https://doi.org/10.1051/0004-6361%3A200810912

Search for gamma rays from dark matter annihilations around intermediate mass black holes with the HESS experiment (2008)
Journal Article
Aharonian, F., Akhperjanian, A., de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Search for gamma rays from dark matter annihilations around intermediate mass black holes with the HESS experiment. Physical Review D, 78(7), https://doi.org/10.1103/physrevd.78.072008

Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304 (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Becherini, Y., Behera, B., …Collaboration, H. (2008). Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304. Physical Review Letters, 101(17), https://doi.org/10.1103/physrevlett.101.170402

Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A. Astronomy and Astrophysics, 490(2), 685-693. https://doi.org/10.1051/0004-6361%3A200809722

HESS upper limits for Kepler's supernova remnant (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). HESS upper limits for Kepler's supernova remnant. Astronomy and Astrophysics, 488(1), 219-223. https://doi.org/10.1051/0004-6361%3A200809401

Chandra and HESS observations of the supernova remnant CTB 37B (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Chandra and HESS observations of the supernova remnant CTB 37B. Astronomy and Astrophysics, 486(3), 829-836. https://doi.org/10.1051/0004-6361%3A200809655

TeV gamma-ray astronomy (2008)
Journal Article
Chadwick, P., Latham, I., & Nolan, S. (2008). TeV gamma-ray astronomy. Journal of Physics G: Nuclear and Particle Physics, 35(3), Article 033201. https://doi.org/10.1088/0954-3899/35/3/033201

Exploring a SNR/molecular cloud association within HESS J1745-303 (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Exploring a SNR/molecular cloud association within HESS J1745-303. Astronomy and Astrophysics, 483(2), 509-517. https://doi.org/10.1051/0004-6361%3A20079230

Discovery of VHE gamma-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017 (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Discovery of VHE gamma-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017. Astronomy and Astrophysics, 481(3), L103-L107. https://doi.org/10.1051/0004-6361%3A200809603

Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1913+1011 with HESS (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Discovery of very-high-energy gamma-ray emission from the vicinity of PSR J1913+1011 with HESS. Astronomy & Astrophysics, 484(2), 435-440. https://doi.org/10.1051/0004-6361%3A20078715

Discovery of very high energy gamma-ray emission coincident with molecular clouds in the W 28 (G6.4-0.1) field (2008)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Behera, B., Beilicke, M., Benbow, W., …Ward, M. (2008). Discovery of very high energy gamma-ray emission coincident with molecular clouds in the W 28 (G6.4-0.1) field. Astronomy and Astrophysics, 481(2), 401-410. https://doi.org/10.1051/0004-6361%3A20077765

Observations of the Sagittarius dwarf galaxy by the HESS experiment and search for a dark matter signal (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, M. (2008). Observations of the Sagittarius dwarf galaxy by the HESS experiment and search for a dark matter signal. Astroparticle Physics, 29(1), 55-62. https://doi.org/10.1016/j.astropartphys.2007.11.007

Upper limits from HESS active galactic nuclei observations in 2005-2007 (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). Upper limits from HESS active galactic nuclei observations in 2005-2007. Astronomy and Astrophysics, 478(2), 387-393. https://doi.org/10.1051/0004-6361%3A20078604

HESS observations and VLT spectroscopy of PG 1553+113 (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Barres de Almeida, U., Bazer-Bachi, A., Behera, B., Beilicke, M., …Zech, A. (2008). HESS observations and VLT spectroscopy of PG 1553+113. Astronomy and Astrophysics, 477(2), 481-489. https://doi.org/10.1051/0004-6361%3A20078603

Primary particle acceleration above 100 TeV in the shell-type supernovaremnant RX J1713.7-3946 with deep HESS observations (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, M. (2007). Primary particle acceleration above 100 TeV in the shell-type supernovaremnant RX J1713.7-3946 with deep HESS observations. Astronomy & Astrophysics, 464(1), 235-243

First ground-based measurement of atmospheric Cherenkov light from cosmic rays (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, M. (2007). First ground-based measurement of atmospheric Cherenkov light from cosmic rays. Physical Review D, 75(4),

3.9 day orbital modulation in the TeV gamma ray flux and spectrum from the X-ray binary LS 5039 (2007)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, M. (2007). 3.9 day orbital modulation in the TeV gamma ray flux and spectrum from the X-ray binary LS 5039. Astronomy & Astrophysics, 460(3), 743-749. https://doi.org/10.1051/0004-6361%3A20065940

Aims. LS 5039 is a High Mass X-ray Binary (HMXRB) comprising a compact object in an eccentric 3.9 day orbit around a massive O6.5V star. Observations at energies above 0.1 TeV (1011 eV) by the High Energy Stereoscopic System (HESS) in 2004 revealed t... Read More about 3.9 day orbital modulation in the TeV gamma ray flux and spectrum from the X-ray binary LS 5039.

Very high-energy gamma rays from gamma-ray bursts (2007)
Journal Article
Chadwick, P. (2007). Very high-energy gamma rays from gamma-ray bursts. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 365(1854), 1343-1356. https://doi.org/10.1098/rsta.2006.1971

Very high-energy (VHE) gamma-ray astronomy has undergone a transformation in the last few years, with telescopes of unprecedented sensitivity having greatly expanded the source catalogue. Such progress makes the detection of a gamma-ray burst at the... Read More about Very high-energy gamma rays from gamma-ray bursts.

HESS observations of the Galactic Center region and their possible darkmatter interpretation (2006)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, M. (2006). HESS observations of the Galactic Center region and their possible darkmatter interpretation. Physical Review Letters, 97(22),

Energy dependent γ-ray morphology in the pulsar wind nebula HESS J1825-137 (2006)
Journal Article
Aharonian, F., Akhperjanian, A., Bazer-Bachi, A., Beilicke, M., Benbow, W., Berge, D., …Ward, A. (2006). Energy dependent γ-ray morphology in the pulsar wind nebula HESS J1825-137. Astronomy & Astrophysics, 460(2), 365-374. https://doi.org/10.1051/0004-6361%3A20065546