Search Results - "Wilhelmi, Emma"

Massive stars as major factories of Galactic cosmic rays by Aharonian, Felix, Yang, Ruizhi, de Oña Wilhelmi, Emma

“…The identification of the main contributors to the locally observed fluxes of cosmic rays is a prime objective in the resolution of the long-standing enigma of…”
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High-energy gamma-ray emission powered by a young protostar: the case of S255 NIRS 3 by de Oña Wilhelmi, Emma, López-Coto, Rubén, Su, Yang

“…ABSTRACT Evidence of efficient acceleration of cosmic rays in massive young stellar objects has been recently reported. Among these massive protostars, S255…”
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A Search for Transitions between States in Redbacks and Black Widows Using Seven Years of Fermi-LAT Observations by Torres, Diego F., Ji, Long, Li, Jian, Papitto, Alessandro, Rea, Nanda, Wilhelmi, Emma de Oña, Zhang, Shu

“…Considering about seven years of Fermi-Large Area Telescope (LAT) data, we present a systematic search for variability that is possibly related to transitions…”
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Testing source confusion and identification capability in Cherenkov telescope array data by Mestre, Enrique, Torres, Diego F, de Oña Wilhelmi, Emma, Martí, Josep

“…The Cherenkov Telescope Array will provide the deepest survey of the Galactic Plane performed at very-high-energy gamma-rays. Consequently, this survey will…”
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SNR G39.2−0.3, an hadronic cosmic rays accelerator by de Oña Wilhelmi, Emma, Sushch, Iurii, Brose, Robert, Mestre, Enrique, Su, Yang, Zanin, Roberta

“…ABSTRACT Recent results obtained with gamma-ray satellites have established supernova remnants as accelerators of GeV hadronic cosmic rays. In such processes,…”
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On the Potential of Bright, Young Pulsars to Power Ultrahigh Gamma-Ray Sources by de Oña Wilhelmi, Emma, López-Coto, Rubén, Amato, Elena, Aharonian, Felix

“…The recent discovery of a new population of ultrahigh-energy gamma-ray sources with spectra extending beyond 100 TeV revealed the presence of Galactic…”
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Probing the hadronic nature of the gamma-ray emission associated with Westerlund 2 by Mestre, Enrique, de Oña Wilhelmi, Emma, Torres, Diego F, Holch, Tim Lukas, Schwanke, Ullrich, Aharonian, Felix, Parkinson, Pablo Saz, Yang, Ruizhi, Zanin, Roberta

“…ABSTRACT Star-forming regions have been proposed as potential Galactic cosmic ray accelerators for decades. Cosmic ray acceleration can be probed through…”
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Gamma-ray haloes around pulsars as the key to understanding cosmic-ray transport in the Galaxy by López-Coto, Rubén, de Oña Wilhelmi, Emma, Aharonian, Felix, Amato, Elena, Hinton, Jim

“…Pulsars are factories of relativistic electrons and positrons that propagate away from the pulsar, eventually permeating our Galaxy. The acceleration and…”
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Observing and Modeling the Gamma-Ray Emission from Pulsar/Pulsar Wind Nebula Complex PSR J0205+6449/3C 58 by Li, Jian, Torres, Diego F., Lin, Ting Ting, Grondin, Marie-Helene, Kerr, Matthew, Lemoine-Goumard, Marianne, Wilhelmi, Emma de Oña

“…We present the results of the analysis of eight years of Fermi-LAT data of the pulsar/pulsar wind nebula complex PSR J0205+6449/3C 58. Using a contemporaneous…”
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GAMMA-RAY UPPER LIMITS ON MAGNETARS WITH SIX YEARS OF FERMI-LAT OBSERVATIONS by Li, Jian, Rea, Nanda, Torres, Diego F., de Oña-Wilhelmi, Emma

“…ABSTRACT We report on the search for gamma-ray emission from 20 magnetars using six years of Fermi Large Area Telescope observations. No significant evidence…”
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GeV Detection of HESS J0632+057 by Li, Jian, Torres, Diego F., Cheng, K.-S., Wilhelmi, Emma de Oña, Kretschmar, Peter, Hou, Xian, Takata, Jumpei

“…HESS J0632+057 is the only gamma-ray binary that has been detected at TeV energies, but not at GeV energies yet. Based on nearly nine years of Fermi Large Area…”
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Gamma-ray heartbeat powered by the microquasar SS 433 by Li, Jian, Torres, Diego F., Liu, Ruo-Yu, Kerr, Matthew, de Oña Wilhelmi, Emma, Su, Yang

“…Microquasars, the local siblings of extragalactic quasars, are binary systems comprising a compact object and a companion star. By accreting matter from their…”
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GAMMA-RAY EMISSION FROM PSR J0007+7303 USING SEVEN YEARS OF FERMI LARGE AREA TELESCOPE OBSERVATIONS by Li, Jian, Torres, Diego F., de Oña Wilhelmi, Emma, Rea, Nanda, Martin, Jonatan

“…ABSTRACT Based on more than seven years of Fermi Large Area Telescope Pass 8 data, we report on a detailed analysis of the bright gamma-ray pulsar (PSR)…”
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TeV astronomy by Rieger, Frank M., Oña-Wilhelmi, Emma de, Aharonian, Felix A.

“…With the successful realization of the current-generation of ground-based detectors, TeV Astronomy has entered into a new era. We review recent advances in VHE…”
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The high-energy gamma-ray detection of G73.9+0.9, a supernova remnant interacting with a molecular cloud by Zdziarski, Andrzej A., Malyshev, Denys, de Oña Wilhelmi, Emma, Pedaletti, Giovanna, Yang, Ruizhi, Chernyakova, Maria, López-Caniego, Marcos, Mikołajewska, Joanna, Basak, Rupal

“…We have analysed the Fermi Large Area Telescope (LAT) data on the SNR G73.9+0.9. We have confirmed a previous detection of high-energy γ-rays from this source…”
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SEARCH FOR GAMMA-RAY EMISSION FROM AE AQUARII WITH SEVEN YEARS OF FERMI LAT OBSERVATIONS by Li, Jian, Torres, Diego F., Rea, Nanda, Wilhelmi, Emma de Oña, Papitto, Alessandro, Hou, Xian, Mauche, Christopher W.

“…ABSTRACT AE Aquarii (AE Aqr) is a cataclysmic binary hosting one of the fastest rotating ( = 33.08 s) white dwarfs (WDs) known. Based on seven years of Fermi…”
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The hunt for PeVatrons as the origin of the most energetic photons observed in the Galaxy by de Oña Wilhelmi, Emma, López-Coto, Ruben, Aharonian, Felix, Amato, Elena, Cao, Zhen, Gabici, Stefano, Hinton, Jim

“…Ultrarelativistic particles called cosmic rays permeate the Milky Way, propagating through the turbulent Galactic magnetic fields. The mechanisms under which…”
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Athena synergies in the multi-messenger and transient universe by Piro, Luigi, Ahlers, Markus, Coleiro, Alexis, Colpi, Monica, de Oña Wilhelmi, Emma, Guainazzi, Matteo, Jonker, Peter G., Namara, Paul Mc, Nichols, David A., O’Brien, Paul, Troja, Eleonora, Vink, Jacco, Aird, James, Amati, Lorenzo, Anand, Shreya, Bozzo, Enrico, Carrera, Francisco J., Fabian, Andrew C., Fryer, Christopher, Hall, Evan, Korobkin, Oleg, Korol, Valeriya, Mangiagli, Alberto, Martínez-Núñez, Silvia, Nissanke, Samaya, Osborne, Julien, Padovani, Paolo, Rossi, Elena M., Ryan, Geoffrey, Sesana, Alberto, Stratta, Giulia, Tanvir, Niel, van Eerten, Hendrik

“…In this paper we explore the scientific synergies between Athena and some of the key multi-messenger facilities that should be operative concurrently with…”
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NuSTAR Hard X-Ray Observation of the Gamma-Ray Binary Candidate HESS J1832-093 by Mori, Kaya, Gotthelf, E. V., Hailey, Charles J., Hord, Ben J., Wilhelmi, Emma de Oña, Rahoui, Farid, Tomsick, John A., Zhang, Shuo, Hong, Jaesub, Garvin, Amani M., Boggs, Steven E., Christensen, Finn E., Craig, William W., Harrison, Fiona A., Stern, Daniel, Zhang, William W.

“…We present a hard X-ray observation of the TeV gamma-ray binary candidate HESS J1832−093, which is coincident with the supernova remnant G22.7−0.2, using the…”
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Massive star clusters as the an alternative source population of galactic cosmic rays by Yang, Rui-zhi, Aharonian, Felix, de Oña Wilhelmi, Emma

“…Extended γ -ray emissions in the vicinity of young star clusters are believed to be produced by the interaction of CRs accelerated therein with the ambient…”
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