| Canonical Name: | 1ES 0502+675 |
| TeVCat Name: | TeV J0507+676 |
| Other Names: | |
| Source Type: | HBL |
| R.A.: | 05 07 56.2 (hh mm ss) |
| Dec.: | +67 37 24 (dd mm ss) |
| Gal Long: | 143.79 (deg) |
| Gal Lat: | 15.89 (deg) |
| Distance: | z=0.34 |
| Flux: | 0.06 (Crab Units) |
| Energy Threshold: | 350 GeV |
| Spectral Index: | |
| Extended: | No |
| Discovery Date: | 2009-11 |
| Discovered By: | VERITAS |
| TeVCat SubCat: | Newly Announced |
Source Notes:
Source position and its uncertainty:
From
Ong et al.(2009):
- no information available
- RA and Dec taken from
NED position of 1ES 0502+675
Spectral Information:
From
Benbow et al. (2011):
- Spectral index: 3.92 +/- 0.35
Distance:
Various redshifts have been reported for this blazar in the literature.
We are quoting the most recent measurement, z = 0.340, of
Shaw et al. (2013)
in the main TeVCat table.
Details of the various measurements:
z = 0.341
-
Scarpa et al. (1999) quote a redshift of z = 0.341 with a reference
to "E. S. Perlmann 1998, private communication". Further details are
given of this private communication: "Recently, a redshift of z =
0.314 has been reported, based on detection of Ca II H and K and Mg II
absorption lines"
z = 0.416
-
Landt et al. (2002) report a redshift of z = 0.416 and state
"We obtained this redshift, which is different from the one published
by
Perlman et al. (1996), after a careful reinspection of the
electronic spectral file". There does not seem to be a redshift quoted
in
Perlman et al. (1996) but perhaps the private communication with
Perlman that is cited for z = 0.342 refers to an analysis of the
1ES 0502+675 spectrum presented in this
Perlman et al. (1996) paper,
which shows four absorption lines.
z = 0.340
-
Shaw et al. (2013) report a redshift of z = 0.340
from spectroscopic observations with the Marcario Low Resolution
Spectrograph on the Hobby-Eberly Telescope.
Seen by: VERITAS
-
A spectral hardening in the Fermi-LAT Data of 1ES 0502+675
Zeng, Yuhang et al., arXiv e-prints parXiv:2201.02508 (2022) [LINK]
-
VHE Blazar Discoveries with VERITAS
Wystan Benbow for the VERITAS Collaboration, ArXiv e-prints p (2011) [LINK]
-
Hard MeV-GeV spectra of blazars
Katarzynski, K., ArXiv e-prints p (2011) [LINK]
-
Discovery of VHE Gamma-Ray Emission from the Fermi-LAT Source 1ES 0502+675
Ong, R. A. on behalf of the VERITAS Collaboration, ATel 2301 [LINK]
Want a reference added? Send a bibtex entry to
the TeVCat Team
