HP
Helen Poon
astro-ph.HEastro-ph.COastro-ph.GAastro-ph.IMhep-ex
On Valency
published · living versionsW_4rs6dmcq·v1 · currentpublished
The peak-flux of GRB 221009A measured with GRBAlpha
with Jakub Ripa, Hiromitsu Takahashi, Yasushi Fukazawa, Norbert Werner +40
1 version
W_3qzq3v6g·v1published
W_r3y4k8aq·v1published
Preprints & journals
63 papers in the corpus · 2009–2023The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars2307.11132v1 · David A. Smith, Philippe Bruel, Colin J. Clark et al.2023 · 174 citationsarXiv
Fermi-GBM Discovery of GRB 221009A: An Extraordinarily Bright GRB from Onset to Afterglow2303.14172v2 · S. Lesage, P. Veres, M. S. Briggs et al.2023 · 146 citationsarXivon Valency
The peak-flux of GRB 221009A measured with GRBAlpha2302.10047v4 · Jakub Ripa, Hiromitsu Takahashi, Yasushi Fukazawa et al.2023 · 25 citationsA&A 677, L2 (2023)on Valency
GRBAlpha: the smallest astrophysical space observatory -- Part 1: Detector design, system description and satellite operations2302.10048v2 · Andr'as P'al, Masanori Ohno, L'aszl'o M'esz'aros et al.2023 · 0 citationsarXiv
Scaling relations of X-ray Luminous Clusters in the Hyper Suprime-Cam Subaru Strategic Program Field2302.05896v2 · Helen Poon, Nobuhiro Okabe, Yasushi Fukazawa et al.2023 · 8 citationsarXiv
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 32209.12070v2 · Marco Ajello, Luca Baldini, Jean Ballet et al.2022 · 129 citationsarXiv
Early results from GRBAlpha and VZLUSAT-22207.03272v2 · Jakub Ripa, Andras Pal, Masanori Ohno et al.2022 · 4 citationsProc. SPIE, Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, 12181 (2022) 121811K
Search for new cosmic-ray acceleration sites within the 4FGL catalog Galactic plane sources2205.03111v1 · S. Abdollahi, F. Acero, M. Ackermann et al.2022 · 11 citationsarXiv
A Gamma-ray Pulsar Timing Array Constrains the Nanohertz Gravitational Wave Background2204.05226v1 · M. Ajello, W. B. Atwood, L. Baldini et al.2022 · 49 citationsarXiv
Incremental Fermi Large Area Telescope Fourth Source Catalog2201.11184v3 · Soheila Abdollahi, Fabio Acero, Luca Baldini et al.2022 · 571 citationsApJS 260, 53 (2022)
Fermi Large Area Telescope Performance After 10 Years Of Operation2106.12203v3 · M. Ajello, W. B. Atwood, M. Axelsson et al.2021 · 67 citationsApJS 256 (2021) 12
Catalog of Long-Term Transient Sources in the First 10 Years of Fermi-LAT Data2106.00100v1 · L. Baldini, J. Ballet, D. Bastieri et al.2021 · 1 citationarXiv
Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow1909.10605v2 · M. Ajello, M. Arimoto, M. Axelsson et al.2019 · 77 citationsarXivon Valency
Search for γ-Ray Line Signals from Dark Matter Annihilations in the Inner Galactic Halo from 10 Years of Observations with H.E.S.S.29864326 · Abdallah, H, Abramowski, A, Aharonian, F et al.2018 · 150 citationsPhysical review letters. 2018;120(20):201101
H.E.S.S. discovery of very high energy gamma-ray emission from PKS 0625-3541802.07611v1 · H.E.S.S. Collaboration, H. Abdalla, A. Abramowski et al.2018 · 32 citationsarXiv
Population study of Galactic supernova remnants at very high -ray energies with H.E.S.S.1802.05172v2 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2018 · 69 citationsarXiv
A search for new supernova remnant shells in the Galactic plane with H.E.S.S1801.06020v2 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2018 · 48 citationsA&A 612, A8 (2018)
TeV gamma-ray observations of the binary neutron star merger GW170817 with H.E.S.S1710.05862v2 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 63 citationsApJL 850 (2017) L22
Contributions of the High Energy Stereoscopic System (H.E.S.S.) to the 35th International Cosmic Ray Conference (ICRC), Busan, Korea1709.06442v1 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 10 citationsarXiv
Measurement of the EBL spectral energy distribution using the VHE gamma-ray spectra of H.E.S.S. blazars1707.06090v2 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 79 citationsA&A 606, A59 (2017)
Constraints on particle acceleration in SS433/W50 from MAGIC and H.E.S.S. observations1707.03658v1 · M. L. Ahnen, S. Ansoldi, L. A. Antonelli et al.2017 · 31 citationsA&A 612, A14 (2018)
Characterising the VHE diffuse emission in the central 200 parsecs of our Galaxy with H.E.S.S1706.04535v1 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 98 citationsA&A 612, A9 (2018)
Systematic search for very-high-energy gamma-ray emission from bow shocks of runaway stars1705.02263v1 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 18 citationsA&A 612, A12 (2018)
The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey1702.08280v2 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2017 · 163 citationsA&A 612, A2 (2018)
Gamma-ray blazar spectra with H.E.S.S. II mono analysis: the case of PKS 2155-304 and PG 1553+1131612.01843v1 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2016 · 37 citationsA&A 600, A89 (2017)
First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst: H.E.S.S. observations of FRB 1504181611.09209v1 · H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian et al.2016 · 11 citationsA&A 597, A115 (2017)
Deeper H.E.S.S. observations of Vela Junior (RX J0852.0$-$4622): Morphology studies and resolved spectroscopy1611.01863v2 · H.E.S.S. Collaboration, H. Abdalla, A. Abramowski et al.2016 · 65 citationsA&A 612, A7 (2018)
Characterizing the gamma-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT1610.03311v1 · H.E.S.S. Collaboration, H.Abdalla, A.Abramowski et al.2016 · 48 citationsA&A 598, A39 (2017)
H.E.S.S. Limits on Linelike Dark Matter Signatures in the 100 GeV to 2 TeV Energy Range Close to the Galactic Center.27768338 · Abdalla, H, Abramowski, A, Aharonian, F et al.2018 · 56 citationsPhysical review letters. 2016;117(15):151302
H.E.S.S. observations of RX J1713.7-3946 with improved angular and spectral resolution; evidence for gamma-ray emission extending beyond the X-ray emitting shell1609.08671v2 · H.E.S.S. Collaboration: H. Abdalla, H. Abdalla, A. Abramowski et al.2016 · 141 citationsA&A 612, A6 (2018)
Search for Dark Matter Annihilations towards the Inner Galactic Halo from 10 Years of Observations with H.E.S.S.27661677 · Abdallah, H, Abramowski, A, Aharonian, F et al.2018 · 307 citationsPhysical review letters. 2016;117(11):111301
The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT1609.00600v1 · H.E.S.S. Collaboration, H. Abdalla, A. Abramowski et al.2016 · 57 citationsA&A 612, A5 (2018)
A search for very high-energy flares from the microquasars GRS 1915+105, Circinus X-1, and V4641 Sgr using contemporaneous H.E.S.S. and RXTE observations1607.04613v2 · H.E.S.S. Collaboration, H. Abdalla, A. Abramowski et al.2016 · 17 citationsA&A 612, A10 (2018)
Extended VHE gamma-ray emission towards SGR1806-20, LBV1806-20, and stellar cluster Cl*1806-201606.05404v2 · H. Abdalla, A. Abramowski, F. Aharonian et al.2016 · 21 citationsA&A 612, A11 (2018)
Detailed spectral and morphological analysis of the shell type SNR RCW 861601.04461v1 · H.E.S.S. Collaboration, A. Abramowski, F. Aharonian et al.2016 · 43 citationsarXiv
Sgr A* Observations with H.E.S.S. II1509.03425v1 · R.D. Parsons, M. Holler, J. King et al.2015 · 2 citationsarXiv
Discovery of variable VHE gamma-ray emission from the binary system 1FGL J1018.6-58561503.02711v1 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2015 · 37 citationsA&A 577, A131 (2015)
Constraints on an annihilation signal from a core of constant dark matter density around the milky way center with H.E.S.S.25768750 · Abramowski, A, Aharonian, F, Ait Benkhali, F et al.2015 · 50 citationsPhysical review letters. 2015;114(8):081301
The exceptionally powerful TeV gamma-ray emitters in the Large Magellanic Cloud1501.06578v1 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2015 · 154 citationsScience, 2015, 347, issue 6220, p. 406
The 2012 flare of PG 1553+113 seen with H.E.S.S. and Fermi-LAT1501.05087v1 · A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2015 · 1 citationarXiv
H.E.S.S. reveals a lack of TeV emission from the supernova remnant Puppis A1412.6997v2 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 29 citationsA&A 575, A81 (2015)
H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud1412.2251v2 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 28 citationsA&A 574, A100 (2015)
Diffuse Galactic gamma-ray emission with H.E.S.S1411.7568v1 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 103 citationsarXiv
Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.21411.0572v1 · H.E.S.S. Collaboration : A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 26 citationsarXiv
Search for dark matter annihilation signatures in H.E.S.S. observations of Dwarf Spheroidal Galaxies1410.2589v3 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 109 citationsarXiv
Long-term monitoring of PKS 2155$-\gamma$-ray correlations in different spectral states1409.0253v1 · A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 31 citationsA&A 571, A39 (2014)
Discovery of the hard spectrum VHE gamma-ray source HESS J1641-4631408.5280v3 · H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 44 citationsThe Astrophysical Journal Letters, 794:L1 (6pp), 2014
Probing the gamma-ray emission from HESS J1834-087 using H.E.S.S. and Fermi LAT observations1407.0862v1 · The H.E.S.S. Collaboration: A. Abramowski, F. Aharonian, F. Ait Benkhali et al.2014 · 30 citationsarXiv
Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S1405.0488v1 · H.E.S.S. Collaboration, A. Abramowski, F. Aharonian et al.2014 · 249 citationsAstronomy & Astrophysics, Volume 565, 05/2014, A16
TeV {\gamma}-ray observations of the young synchrotron-dominated SNRs G1.9+0.3 and G330.2+1.0 with H.E.S.S1404.1613v1 · H.E.S.S. Collaboration, A. Abramowski, F. Aharonian et al.2014 · 22 citationsarXiv
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