Status: Bibliographieeintrag
Standort: ---
Exemplare:
---
| Online-Ressource |
Verfasst von: | Tibolla, Omar [VerfasserIn]  |
| Kaufmann, Sarah [VerfasserIn]  |
| Kosack, Karl [VerfasserIn]  |
Titel: | XMM-Newton and Chandra X-ray follow-up observations of the VHE gamma-ray source HESS J1507-622 |
Verf.angabe: | O. Tibolla, S. Kaufmann, and K. Kosack |
E-Jahr: | 2014 |
Jahr: | 14 July 2014 |
Umfang: | 8 S. |
Fussnoten: | Gesehen am 10.08.2020 |
Titel Quelle: | Enthalten in: Astronomy and astrophysics |
Ort Quelle: | Les Ulis : EDP Sciences, 1969 |
Jahr Quelle: | 2014 |
Band/Heft Quelle: | 567(2014) Artikel-Nummer A74, 8 Seiten |
ISSN Quelle: | 1432-0746 |
Abstract: | Context: The discovery of the unique source HESS J1507-622 in the very high energy (VHE) range (100 GeV−100 TeV) opened new possibilities to study the parent population of ultra-relativistic particles found in astrophysical sources and underlined the possibility of new scenarios/mechanisms crucial for understanding the underlying astrophysical processes in nonthermal sources. Aims: The follow-up X-ray (0.2−10 keV) observations on HESS J1507-622 are reported, and possibilities regarding the nature of the VHE source and that of the newly discovered X-ray sources are investigated. Methods: We obtained observations with the X-ray satellites XMM-Newton and Chandra. Background corrections were applied to the data to search for extended diffuse emission. Since HESS J1507-622 covers a large part of the field of view of these instruments, blank-sky background fields were used. Results: The discovery of several new X-ray sources and a new, faint, extended X-ray source with a flux of ~ 6 × 10-14ergcm-2s-1 is reported. Interestingly, a new, variable point-like X-ray source with a flux of ~ 8 × 10-14ergcm-2s-1 appeared in the 2011 observation, which was not detected in the previous X-ray observations. Conclusions: The X-ray observations revealed a faint, extended X-ray source that may be a possible counterpart for HESS J1507-622. This source could be an X-ray pulsar wind nebula (PWN) remnant of the larger gamma-ray PWN, which is still bright in IC emission. Several interpretations are proposed to explain the newly detected variable X-ray source. |
DOI: | doi:10.1051/0004-6361/201321778 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1051/0004-6361/201321778 |
| Volltext: https://www.aanda.org/articles/aa/abs/2014/07/aa21778-13/aa21778-13.html |
| DOI: https://doi.org/10.1051/0004-6361/201321778 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1726670090 |
Verknüpfungen: | → Zeitschrift |
XMM-Newton and Chandra X-ray follow-up observations of the VHE gamma-ray source HESS J1507-622 / Tibolla, Omar [VerfasserIn]; 14 July 2014 (Online-Ressource)
68625995