Hae

Aineistot 1-10 / 13

Properties of High-Energy Solar Particle Events Associated with Solar Radio Emissions

Valtonen E; Ameri D; Pohjolainen S

We have analysed 58 high-energy proton events and 36 temporally related near-relativistic electron events from the years 1997 - 2015 for which the velocity dispersion analysis of the first-arriving particles gave the ...

The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma-rays

Besenrieder J; Sitarek J; Elsaesser D; Ramazani VF; Saito T; Berti A; Berse RC; Vanzo G; Nishijima K; Prester DD; Tammi J; Prandini E; Suric T; Arcaro C; Kubo H; Dorner D; Bhattacharyya W; de Almeida UB; Paiano S; Leone F; Nilsson K; Wierda F; Persic M; Cortina J; De Angelis A; Foffano L; Max-Moerbeck W; Babic A; Moreno V; Ward JE; Lahteenmaki A; Saha L; Penil P; Guberman D; Satalecka K; Kiehlmann S; Da Vela P; Bangale P; Hovatta T; Strzys M; Readhead ACS; Colak SM; Hahn A; Fernandez-Barral A; Lamastra A; Delfino M; Gallozzi S; Hadasch D; Vera RJC; Pfrang K; Gaug M; Tornikoski M; Tsujimoto S; Doro M; Mielke K; Lombardi S; Sobczynska D; Einecke S; Manganaro M; Miranda JM; Hayashida M; Jormanainen J; Noda K; De Lotto B; Kushida J; Chatterjee A; Barcewicz S; Paredes JM; Delgado J; Acosta MV; Ninci D; Contreras JL; Fruck C; Ferrara G; Ceribella G; Garcia JR; Mariotti M; Dazzi F; Maneva G; Paoletti R; Maraschi L; Fonseca MV; Vovk I; Puljak I; Palacio J; Cumani P; Rhode W; Rico J; Biland A; Schweizer T; Bednarek W; Godinovic N; Nogues L; Desiante R; Moroni PGP; Mirzoyan R; Gonzalez JB; Konno Y; Herrera J; Nigro C; Tavecchio F; Lindfors E; Pedaletti G; Banerjee B; Antonelli LA; Hoang J; Mannheim K; Torres-Alba N; Covino S; Mazin D; Masuda S; Neustroev V; Ishio K; Lopez RJG; Moralejo A; Reinthal R; Rosillo MN; Garczarczyk M; Niedzwiecki A; Majumdar P; Rugliancich A; Longo F; Blanch O; Makariev M; Fidalgo D; Colin P; Snidaric I; Baack D; Bonnoli G; Hrupec D; Font L; Stamerra A; Martinez M; Mankuzhiyil N; Lelas D; Ciprini S; D'Elia V; Takalo L; Bigongiari C; Will M; Dominguez A; Carosi R; Fattorini A; Minev M; Ansoldi S; Moretti E; Lopez M; Hassan T; Teshima M; Inoue S; Colombo E; Terzic T; Righi C; Temnikov P; Giammaria P; Maggio C; Zaric D; Di Pierro F; Iwamura Y; Bernardini E; Paneque D; Ribo M; Peresano M; Barrio JA

The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed S2 0109+22 in 2015 July during its flaring activity in high-energy gamma-rays observed by Fermi-Large Area Telescope. We analyse the MAGIC data ...

Numerical confirmation of the existence of triple collision orbits inside the domain of the free-fall three-body problem

Mikkola Seppo; Tanikawa Kiyotaka

We performed numerical orbit integrations of the equal-mass free-fall three-body problem. We provided numerical evidence of the existence of triple collision orbits concentrating on the shape of triangles formed by the ...

Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts

Panos Boumis; Mark Kidger; Alexis Liakos; Isa Mohammed; Shirin Haque; Helen Jermak; Marek Drozdz; Kari Nilsson; Sebastian Kurowski; Rene Hudec; Daniel B. Caton; Waldemar Ogloza; Ian A. Steele; Yurii Bufan; Stefano Ciprini; Volodymir V. Vasylenko; Jan Janik; Pawel Zielinski; Tomasz Kundera; Urszula Pajdosz; Andrii O. Simon; Katsura Matsumoto; Vivian L. Hoette; Vira Godunova; Kosmas Gazeas; Mauri Valtonen; Ahmet Erdem; Vilppu Piirola; Lankeswar Dey; Stanislaw Zola; Bartlomiej Debski; Tapio Pursimo; Oleksandr Baransky; Achamveedu Gopakumar; Huseyin Er; Andrei Berdyugin; Daniel L. Reichart; Brandon Rajkumar; Michal Siwak; Eda Sonbas; Michal Zejmo; Fahri Alicavus

We report optical photometric and polarimetric observations of the blazar OJ 287 gathered during 2016/17. The high level of activity, noticed after the General Relativity Centenary flare, is argued to be part of ...

Authenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using Its General Relativity Centenary Flare: Improved Orbital Parameters

Stocke JT; Kagitani M; Haislip JB; Kvammen A; Kaur N; Nilsson K; Pinilla FG; Piirola V; Espasa LT; Blay P; Zheng W; Siwak M; Gopakumar A; Jelinek M; Steele I; Webb JR; Saario J; Gafton E; Liakos A; Baliyan KS; Janik J; Reynolds T; Dey L; Harmanen J; Gopinathan M; Ganesh S; Raj A; Yoneda M; Pursimo T; Valtonen MJ; Perez JV; LaCluyze AP; Gazeas K; Pandey JC; Alicavus F; Lindfors E; Chandra S; Sillanpaa A; Lehto HJ; Kidger M; Okano S; Nelson RH; Baransky A; Verrecchia F; Campos F; Ramazani VF; Garcia F; Tomov T; Perri M; Mikkola S; Godunova V; Caton DB; Sakanoi T; Strobl J; Jermak H; Sonbas E; Alfaro FCS; Provencal J; Schweyer T; Hudec R; Kundera T; Zola S; Reichart DE; Debski B; Erdem A; Chavushyan V; Sadakane K; Pihajoki P; Perez AE; Ogloza W; Joshi A; Dalessio J; Zejmo M; de Haro JL; Vasylenko V; Sameer; Filippenko AV; Drozdz M; Nogues RN; Valdes JR; Pajdosz-Smierciak U; Karjalainen R; Kouprianov VV; Reinthal R; Sadegi S; Hurst G; Ciprini S; Matsumoto K; Poyner G; Kurowski S; Takalo LO; Berdyugin A; Torrent MC; Mugrauer M; Neely AW; Simon A; Gomez JC; Er H; Boyd D; Lee BC; Keel WC; Boumis P; Zielinski P; Gonzalez JLS

Results from regular monitoring of relativistic compact binaries like PSR 1913+16 are consistent with the dominant (quadrupole) order emission of gravitational waves (GWs). We show that observations associated with the ...

Overlong simulations of the solar system dynamics with two alternating step-lengths

Lehto Harry J.; Mikkola Seppo

We compare the performance of four symplectic integration methods with leading order symplectic corrector in simulations of the Solar System. These simulations cover 10 Gyr. They are longer than the astrophysical predicted ...

Multi-wavelength characterization of the blazar S5 0716+714 during an unprecedented outburst phase

Gaug M; Treves A; Marscher A; Myserlis I; Troitsky I; Chatterjee A; Neustroev V; Takahashi M; Gora D; Hahn A; Steele IA; Vovk I; Agudo I; Bastieri D; Miranda JM; Vasilyev AA; Teshima M; Dorner D; Konno Y; Minev M; Kubo H; Nigro C; Font L; Carosi A; Vanzo G; Niedzwiecki A; Palacio J; Tsujimoto S; Covino S; Casadio C; Colak SM; Gallozzi S; Garcia JR; Ansoldi S; Nishijima K; Gurwel M; Acosta MV; Cumani P; Suric T; Grishina TS; Maraschi L; Guberman D; Lopez RJG; Ceribella G; Nalewajko K; Takalo L; Barrio JA; Doro M; Moretti E; Pearson TJ; Garczarczyk M; Righi C; Readhead ACS; Ramazani VF; Hadasch D; Tornikoski M; Troitskaya YV; Mannheim K; Larionov VM; Contreras JL; Longo F; Zensus JA; Babic A; Ribo M; Temnikov P; Nogues L; Carosi R; Jorstad S; Madejski G; Max-Moerbeck W; Dazzi F; Mielke K; Borman GA; Moralejo A; Maneva G; Baack D; Jermak H; Rhode W; Lien AY; Hayashida M; Molina SN; Masuda S; Reeves RA; Paredes JM; Banerjee B; Persic M; Manganaro M; Lombardi S; Kuvezdic D; Gasparrini D; Strzys M; Rosillo MN; Cortina J; Rani B; Lelas D; Ward JE; Arcaro C; Rico J; Puljak I; Godinovic N; Tavecchio F; De Lotto B; Will M; Torres-Alba N; Hose J; Bangale P; Reichardt I; Fonseca MV; Delfino M; Gonzalez JB; Einecke S; Elsaesser D; Berti A; Kraus A; Galindo D; Lindfors E; Moroni PGP; Majumdar P; Lahteenmaki A; Prester DD; Morozova DA; Bonnoli G; Sitarek J; Maggio C; Kuin NPM; Paoletti R; Rugliancich A; Satalecka K; Delgado J; Ramakrishnan V; Giammaria P; Moreno V; Di Pierro F; Mazin D; Jarvela E; Mirzoyan R; Schweizer T; Bhattacharyya W; Biland A; Hovatta T; Nagayoshi T; Ahnen ML; Nilsson K; Colin P; Dominguez A; Lott B; Hassan T; Da Vela P; Savchenko SS; Bednarek W; Larionova LV; Noda K; Prandini E; Sobczynska D; Bernardini E; Kopatskaya EN; Zaric D; Angelakis E; Saito T; Ishio K; Blanch O; Pedaletti G; Krichbaum TP; Herrera J; Thompson DJ; Peresano M; de Almeida UB; Terzic T; Paiano S; Hrupec D; De Angelis A; Martinez M; Antonelli LA; Makariev M; Colombo E; Snidaric I; Kushida J; Berse RC; Lopez M; Fidalgo D; Itoh R; Fruck C; Fernandez-Barral A; Paneque D; Ninci D; Stamerra A; Mariotti M

Context. The BL Lac object S5 0716+714, a highly variable blazar, underwent an impressive outburst in January 2015 (Phase A), followed by minor activity in February (Phase B). The MAGIC observations were triggered by the ...

The 34S/32S isotopic ratio measured in the dust of comet 67P/Churyumov–Gerasimenko by Rosetta/COSIMA

J. Silen; K Hornung; J. Kissel; J A Paquette; J. Rynö; O J Stenzel; M. Hilchenbach; The Cosima Team

The isotopic ratio 34S/32S has been measured in cometary gas for a few comets, but it has only been measured in cometary dust by stardust. The dust measurements find a value of the ratio that is consistent with the Vienna Canyon Diablo Troilite value of 0.0442 within errors, but there is more spread in the values from cometary gas. In this paper, we present the result of measurements of the sulphur isotopic ratio in dust from Comet 67P/Churyumov–Gerasimenko with the COSIMA instrument aboard the Rosetta spacecraft. We find a result of 0.0463 ± 0.0057, which is consistent within errors with the terrestrial value....

Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC

Bednarek W; Guberman D; de Almeida UB; Prester DD; Doert M; Ramazani VF; Banerjee B; Glawion DE; Mazin D; Rosillo MN; Tavecchio F; Manganaro M; Idec W; Carosi A; Lombardi S; Stamerra A; Schweizer T; Einecke S; Paneque D; Font L; Hahn A; Lopez M; Babic A; Lopez RJG; De Lotto B; Maneva G; Paiano S; Bonnefoy S; Hughes G; Poutanen J; Hose J; Konno Y; Garcia JR; Wu MH; Noda K; Gaug M; Gora D; Kodani K; Nishijima K; Chatterjee A; Barrio JA; Palacio J; Godinovic N; Blanch O; Engelkemeier M; Frantzen K; Colin P; Bangale P; Will M; Cortina J; Fruck C; Reichardt I; Schroeder S; De Angelis A; Gonzalez JB; Antoranz P; Mannheim K; Miranda JM; Longo F; Satalecka K; Lopez-Coto R; Rhode W; Terzic T; Colombo E; Saito T; Kushida J; Da Vela P; Neustroev V; Moretti E; Strzys M; Antonelli LA; Verguilov V; Covino S; Biland A; Di Pierro F; Bernardini E; Nakajima D; Herrera J; Mariotti M; Takalo L; Lindfors E; Peresano M; Pedaletti G; Bonnoli G; Dazzi F; Hayashida M; Bretz T; Contreras JL; Munoz AG; Shore SN; Niedzwiecki A; Menzel U; Toyama T; Paredes-Fortuny X; Paoletti R; Moroni PGP; Thaele J; Fonseca MV; Kubo H; Overkemping A; Tescaro D; Dorner D; Martinez M; Puljak I; Elsaesser D; Wilhelmi ED; Galindo D; La Barbera A; Teshima M; Buson S; Ward JE; Lelas D; Persic M; Makariev M; Steinbring T; Marcote B; Majumdar P; Fernandez-Barral A; Zanin R; Vovk I; Snidaric I; Hrupec D; Terrats DG; Ribo M; Vanzo G; Mallot K; Paredes JM; Temnikov P; Nilsson K; Fidalgo D; Perri L; Maraschi L; Torres DF; Ahnen ML; Clavero R; Moralejo A; Doro M; Garczarczyk M; Treves A; Sillanpaa A; Arcaro C; Ansoldi S; Biasuzzi B; Nogues L; Giammaria P; Sitarek J; Borracci F; Palatiello M; Hadasch D; Berti A; Sobczynska D; Mirzoyan R; Suric T; Prandini E; Dominguez A; Rico J

Context. We present the results of a multi-year monitoring campaign of the Galactic center (GC) with the MAGIC telescopes. These observations were primarily motivated by reports that a putative gas cloud (G2) would be ...

Detection of persistent VHE gamma-ray emission from PKS 1510-089 by the MAGIC telescopes during low states between 2012 and 2017

Mirzoyan R; Lombardi S; Hrupec D; Fuentes A; Ansoldi S; De Lotto B; Ramazani VF; Lopez-Oramas A; Palacio J; Nogues L; D'Elia V; Raiteri CM; Gomez JL; Lahteenmaki A; Moreno V; Agudo I; Gallozzi S; Kiehlmann S; Vanzo G; Carosi R; Banerjee B; Antonelli LA; Rosillo MN; Maggio C; Paredes JM; Pedaletti G; Giammaria P; Niedzwiecki A; Snidaric I; Schweizer T; Saha L; Delfino M; Bednarek W; Kushida J; Ribo M; Dazzi F; Colombo E; Ramakrishnan V; Covino S; Tornikoski M; Will M; Minev M; Sobczynska D; Prandini E; Tsujimoto S; Dorner D; Bernardini E; Paneque D; Puljak I; Righi C; de Almeida UB; Persic M; Kim JY; Traianou E; Godinovic N; Munar-Adrover P; Babic A; Hoang J; Paoletti R; Ceribella G; Espinera ED; Fruck C; Lopez RJG; Kubo H; Elsaesser D; Blanch O; Ninci D; Mannheim K; Mariotti M; Ishio K; Terzic T; Sandrinelli A; Thum C; Foffano L; Suric T; Moralejo A; Kuvezdic D; Bangale P; Stamerra A; Bhattacharyya W; Tammi J; Tavecchio F; Rhode W; Mazin D; Fidalgo D; Nishijima K; Arcaro C; Colin P; Satalecka K; Peresano M; Galindo D; Max-Moerbeck W; Acciari VA; Temnikov P; Molina E; Majumdar P; Di Pierro F; Fattorini A; Maneva G; Garczarczyk M; Moretti E; Cortina J; Engels AA; Bonnoli G; De Angelis A; Bigongiari C; Rico J; Contreras JL; Penil P; Casadio C; Berti A; Da Vela P; Miranda JM; Paiano S; Garcia JR; Nigro C; Biland A; Saito T; Ward JE; Molina SN; Torres-Alba N; van Scherpenberg J; Besenrieder J; Makariev M; Colak SM; Hahn A; Longo F; Lopez M; Lelas D; Inoue S; Baack D; Lamastra A; Maraschi L; Guberman D; Myserlis I; Vovk I; Fonseca MV; Zari D; Manganaro M; Ferrara G; Martinez M; Barrio JA; Somero A; Einecke S; Dominguez A; Font L; Teshima M; Herrera J; Gonzalez JB; Nilsson K; Neustroev V; Delgado J; Prester DD; Sitarek J; Lindfors; Strzys M; Iwamura Y; Hadasch D; Cikota S; Acosta MV; Masuda S; Gaug M; Hassan T; Noda K; Leone F; Moroni PGP; Fernandez-Barral A; Doro M; Hovatta T; Rugliancich A

Context. PKS 1510-089 is a flat spectrum radio quasar strongly variable in the optical and GeV range. To date, very high-energy (VHE, >100 GeV) emission has been observed from this source either during long high states of ...