Skip to main content Accessibility help
×
Home

Compton Observatory Observations of AGN

  • J. D. Kurfess (a1)

Abstract

The principal results on active galactic nuclei from the Phase 1 observations by the COMPTON Gamma Ray Observatory are presented. These include the detection of a new class of high-energy gamma ray sources by the EGRET instrument and extensive observations of Seyfert galaxies in low-energy gamma rays by OSSE. The identified EGRET sources are associated with core-dominated radio loud objects, OVV's and BL Lacs. EGRET has not detected any Seyfert galaxies. OSSE observes a thermal-like spectrum from NGC 4151, and the low-energy gamma ray spectra of other Seyferts are significantly softer than the spectra below 50 keV, suggesting that a thermal emission mechanism is characteristic of these objects. OSSE has not detected any positron annihilation radiation from any Seyfert, and neither OSSE nor COMPTEL have detected an MeV excess from these sources.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Compton Observatory Observations of AGN
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Compton Observatory Observations of AGN
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Compton Observatory Observations of AGN
      Available formats
      ×

Copyright

References

Hide All
Brown, K., et al., 1994, to be published in Proc. Second COMPTON Symposium.
Fichtel, C.E., et al., 1993a, presented at the 182nd AAS meeting, private communication.
Fichtel, C.E., et al., 1993b, AIP Conference Proceeding 280, 461.
Fishman, G.J. et al. 1989, Proceedings of the GRO Science Workshop, 239.
Hartman, R.C. et al., 1992 Ap. J., 385, L1
Johnson, W.N. et al., 1994, to be published in Proc. Second COMPTON Symposium.
Johnson, W.N., et al., 1993, Ap. J. Supp. 86, 693.
Levine, A.M., et al., 1984, Ap. J. Supp., 54, 581.
Maisack, M., et al., 1993 Ap. J. 407, L61.
Paciesas, W.S., et al. 1993, AIP Conference Proceeding 280, 473.
Perotti, F, et al., 1981a, Ap. J. 247, L63.
Perotti, F., et al., 1981b, Nature, 292, 133.
Punch, M., et al., 1992, Nature 358, 477.
Rothschild, R.E., et al., 1983. Ap. J. 269, 423.
Swanenburg, B.N., et al., 1978, Nature 275, 298.
Schoenfelder, V., et al., 1993, Ap. J. Supp. 86, 657.
Thompson, D. J., et al., 1993, Ap. J. Supp. 86, 629.

Related content

Powered by UNSILO

Compton Observatory Observations of AGN

  • J. D. Kurfess (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.