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http://hdl.handle.net/2289/6751Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Prince, Raj | - |
| dc.contributor.author | Majumdar, Pratik | - |
| dc.contributor.author | Gupta, Nayantara | - |
| dc.date.accessioned | 2017-09-28T06:21:03Z | - |
| dc.date.available | 2017-09-28T06:21:03Z | - |
| dc.date.issued | 2017-07 | - |
| dc.identifier.citation | The Astrophysical Journal, 2017, Vol.844, p62 | en_US |
| dc.identifier.issn | 0004-637X | - |
| dc.identifier.issn | 1538-4357-(Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/6751 | - |
| dc.description | Open Access | en_US |
| dc.description.abstract | We have analyzed data from the flat-spectrum radio quasar PKS 1510-089 collected over a period of eight years from 2008 August to 2016 December with the Fermi-LAT. We have identified several flares of this highly variable source, studied their temporal and spectral properties in detail, and compared with previous works on flares of PKS 1510-089. Five major flares and a few subflares or substructures have been identified in our study. The fastest variability time is found to be 1.30 ± 0.18 hr between MJD 55852.063 and 55852.188, where we estimate the minimum size of the emission region to be 4.85 × 1015 cm. In most of the flares, the spectral energy distributions are better fitted with a log-parabolic distribution compared to a simple power law or a power law with exponential cutoffs. This has strong physics implications regarding the nature of the high-energy gamma-ray emission region. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | IOP Sciences for The American Astronomical Society | en_US |
| dc.relation.uri | http://adsabs.harvard.edu/abs/2017ApJ...844...62P | en_US |
| dc.relation.uri | http://arxiv.org/abs/1706.02133 | en_US |
| dc.relation.uri | http://dx.doi.org/10.3847/1538-4357/aa78f4 | en_US |
| dc.rights | 2017, The American Astronomical Society. | en_US |
| dc.subject | Galaxies active | en_US |
| dc.subject | Gamma rays | en_US |
| dc.title | Long-term study of the light curve of PKS 1510-089 in GeV Energies | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | Research Papers (A&A) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2017_AstrophyJournal_844_62.pdf | Open Access | 2.92 MB | Adobe PDF | View/Open |
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