crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 606892

Časopis

Autori: Aleksić, Jelena; ...; Dominis Prester, Dijana; ...; Ferenc, Daniel; ...; Godinović, Nikola; ...; Hrupec, Dario; ...; Lelas, Damir; ...; ...; Puljak, Ivica; ...; Šnidarić, Iva; ...; Surić, Tihomir; ...; Terzić, Tomislav; Backes, M.
Naslov: Observations of the magnetars 4U 0142+61 and 1E 2259+586 with the MAGIC telescopes
Izvornik: Astronomy & astrophysics (0004-6361) 549 (2013); A23-1-A23-4
Vrsta rada: članak
Ključne riječi: radiation mechanisms: non-thermal; stars: magnetars; gamma rays: stars; stars: individual: 4U 0142+61; 1E 2259+586
Sažetak:
Magnetars are an extreme, highly magnetized class of isolated neutron stars whose large X- ray luminosity is believed to be driven by their high magnetic field. In this work we study for the first time the possible very high energy gamma-ray emission above 100 GeV from magnetars, observing the sources 4U 0142+61 and 1E 2259+586. We observed the two sources with atmospheric Cherenkov telescopes in the very high energy range (E > 100 GeV). 4U 0142+61 was observed with the MAGIC I telescope in 2008 for ~25 h and 1E 2259+586 was observed with the MAGIC stereoscopic system in 2010 for ~14 h. The data were analyzed with the standard MAGIC analysis software. Neither magnetar was detected. Upper limits to the differential and integral flux above 200 GeV were computed using the Rolke algorithm. We obtain integral upper limits to the flux of 1.52*10^-12cm^-2 s^-1 and 2.7*10^-12cm^-2 s^-1 with a confidence level of 95% for 4U 0142+61 and 1E 2259+586, respectively. The resulting differential upper limits are presented together with X-ray data and upper limits in the GeV energy range.
Projekt / tema: HRZZ-09/176
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Kategorija: Znanstveni
Znanstvena područja:
Fizika
Puni text rada: 606892.2magnetars_v2.pdf
URL Internet adrese: http://fulir.irb.hr/1656/
http://dx.doi.org/10.1051/0004-6361/201220275
http://arxiv.org/abs/1211.1173v2
Broj citata:
Altmetric:
DOI: 10.1051/0004-6361/201220275
URL cjelovitog teksta: http://fulir.irb.hr/1656/
Google Scholar: Observations of the magnetars 4U 0142+61 and 1E 2259+586 with the MAGIC telescopes
Upisao u CROSBI: dhrupec@irb.hr (dhrupec@irb.hr), 7. Pro. 2012. u 14:10 sati



  Verzija za printanje   za tiskati


upomoc
foot_4