Gamma-ray Clues to the Relativistic Jet Dichotomy
| dc.contributor.author | Meyer, Eileen T. | |
| dc.contributor.author | Fossati, Giovanni | |
| dc.contributor.author | Georganopoulos, Markos | |
| dc.contributor.author | Lister, Matthew L. | |
| dc.date.accessioned | 2020-08-25T18:17:34Z | |
| dc.date.available | 2020-08-25T18:17:34Z | |
| dc.date.issued | 2011-11-28 | |
| dc.description.abstract | In examining a select sample of over 200 blazars of known jet kinetic power (L_kin) and well-characterized SEDs, we found (Meyer et al., 2011) that Intermediate synchrotron-peaking (ISP) blazars may have lower gamma-ray output than high synchrotron-peaking (HSP) blazars of similar L_kin, consistent with our hypothesis that ISP blazars are less-beamed versions of HSP blazars, rather than a distinct population. Further, by using the radio core dominance as a measure of relative beaming, we find that gamma-ray luminosity depends on beaming in a consistent way for blazars ranging over all jet kinetic powers (10^42 - 10^46 ergs/s). We re-examine the gamma-ray properties of this core sample of blazars using the 1-year LAT catalog (Abdo et al., 2010). We find that for weak jets, the ratio of inverse Compton to synchrotron emission remains constant with increased beaming, consistent with an SSC model for the jet emission, while the most powerful jets show a strong increase in Compton dominance with orientation, consistent with an external Compton (EC) emission model. | en_US |
| dc.description.sponsorship | This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France (http://simbad.u-strasbg.fr/simbad/), and the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (http://nedwww.ipac.caltech.edu/). We utilized package np in the R language and environment for statistical computing. GF and EM acknowledge support from NASA grants NNG05GJ10G, NNX06AE92G, and NNX09AR04G, as well as SAO grants GO3-4147X and G05-6115X. MG acknowledges support from the NASA ATFP grant NNX08AG77G and NASA FERMI grant NNH08ZDA001N. The MOJAVE project is supported under National Science Foundation grant 0807860-AST. | en_US |
| dc.description.uri | https://arxiv.org/abs/1111.6490 | en_US |
| dc.format.extent | 4 pages | en_US |
| dc.genre | conference papers and proceedings preprints | en_US |
| dc.identifier | doi:10.13016/m2wfdc-paei | |
| dc.identifier.citation | Eileen T. Meyer, Giovanni Fossati, Markos Georganopoulos and Matthew L. Lister, Gamma-ray Clues to the Relativistic Jet Dichotomy, https://arxiv.org/abs/1111.6490 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/19512 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Joint Center for Earth Systems Technology (JCET) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.title | Gamma-ray Clues to the Relativistic Jet Dichotomy | en_US |
| dc.type | Text | en_US |