|Canonical Name:||1ES 0502+675|
|TeVCat Name:||TeV J0507+676|
|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|
|Discovered By: ||VERITAS|
|TeVCat SubCat:||Newly Announced|
Source position and its uncertainty:
From Ong et al.
- no information available
- RA and Dec taken from NED
position of 1ES 0502+675
From Benbow et al.
- Spectral index: 3.92 +/- 0.35
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.
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
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.
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